1 ; **************************************************************************** 2 ; FDISK3.ASM (FDISK3.COM) - TRDOS 386 Hard Disk Partitioning Utility 3 ; (for MSDOS/WINDOWS) 4 ; **************************************************************************** 5 ; Last Update: 21/03/2021 6 ; ---------------------------------------------------------------------------- 7 ; Beginning: 11/10/2020 8 ; ---------------------------------------------------------------------------- 9 ; Assembler: NASM version 2.15 10 ; ---------------------------------------------------------------------------- 11 ; Turkish Rational DOS 12 ; Operating System Project v2.0 by ERDOGAN TAN (Beginning: 04/01/2016) 13 ; ---------------------------------------------------------------------------- 14 ; Derived from 'hdimage.s' (HDIMAGE.COM) source code by Erdogan Tan 15 ; (03/10/2020) 16 17 ; Derived from 'fdisk2.s' (FDISK2.COM) source code by Erdogan Tan 18 ; (03/02/2019) 19 ; 20 ; Derived from 'fdimage.s' (FDIMAGE.COM) source code by Erdogan Tan 21 ; (02/12/2017) 22 ; 23 ; Derived from 'fdformat.s' (FDFORMAT.COM) source code by Erdogan Tan 24 ; (29/11/2017) 25 ; 26 ; Derived from 'FSFDISK.ASM' (FSFDISK.COM) source code by Erdogan Tan 27 ; (27/04/2009) 28 ; 29 ; Derived from 'UNIXCOPY.ASM' (UNIXCOPY.COM) source code by Erdogan Tan 30 ; (04/12/2015) 31 ; **************************************************************************** 32 ; nasm fdisk3.s -l fdisk3.lst -o FDISK3.COM -Z error.txt 33 34 ; Masterboot / Partition Table at Beginning+1BEh 35 ptBootable equ 0 36 ptBeginHead equ 1 37 ptBeginSector equ 2 38 ptBeginCylinder equ 3 39 ptFileSystemID equ 4 40 ptEndHead equ 5 41 ptEndSector equ 6 42 ptEndCylinder equ 7 43 ptStartSector equ 8 44 ptSectors equ 12 45 46 ; BIOS Disk Parameters 47 DPDiskNumber equ 0h 48 DPDType equ 1h 49 DPReturn equ 2h 50 DPHeads equ 3h 51 DPCylinders equ 4h 52 DPSecPerTrack equ 6h 53 DPDisks equ 7h 54 DPTableOff equ 8h 55 DPTableSeg equ 0Ah 56 DPNumOfSecs equ 0Ch 57 58 ; BIOS INT 13h Extensions (LBA extensions) 59 ; Just After DP Data (DPDiskNumber+) 60 DAP_PacketSize equ 10h ; If extensions present, this byte will be >=10h 61 DAP_Reserved1 equ 11h ; Reserved Byte 62 DAP_NumOfBlocks equ 12h ; Value of this byte must be 0 to 127 63 DAP_Reserved2 equ 13h ; Reserved Byte 64 DAP_Destination equ 14h ; Address of Transfer Buffer as SEGMENT:OFFSET 65 DAP_LBA_Address equ 18h ; LBA=(C1*H0+H1)*S0+S1-1 66 ; C1= Selected Cylinder Number 67 ; H0= Number Of Heads (Maximum Head Number + 1) 68 ; H1= Selected Head Number 69 ; S0= Maximum Sector Number 70 ; S1= Selected Sector Number 71 ; QUAD WORD 72 ; DAP_Flat_Destination equ 20h ; 64 bit address, if value in 4h is FFFF:FFFFh 73 ; QUAD WORD (Also, value in 0h must be 18h) 74 ; TR-DOS will not use 64 bit Flat Address 75 76 ; INT 13h Function 48h "Get Enhanced Disk Drive Parameters" 77 ; Just After DP Data (DPDiskNumber+) 78 GetDParams_48h equ 20h ; Word. Data Lenght, must be 26 (1Ah) for short data. 79 GDP_48h_InfoFlag equ 22h ; Word 80 ; Bit 1 = 1 -> The geometry returned in bytes 4-15 is valid. 81 GDP_48h_NumOfPCyls equ 24h ; Double Word. Number physical cylinders. 82 GDP_48h_NumOfPHeads equ 28h ; Double Word. Number of physical heads. 83 GDP_48h_NumOfPSpT equ 2Ch ; Double word. Num of physical sectors per track. 84 GDP_48h_LBA_Sectors equ 30h ; 8 bytes. Number of physical/LBA sectors. 85 GDP_48h_BytesPerSec equ 38h ; Word. Number of bytes in a sector. 86 87 pTableOffset equ 1BEh ; 446 88 89 ; Convert LBA to CHS 90 ; 08/02/2019 91 92 ; LBA = ((C1*H0+H1)*S0)+S1-1 93 ; 94 ; C1 = Selected Cylinder Number 95 ; H0 = Number of Heads (Maximum Head Number + 1) 96 ; H1 = Selected Head Number 97 ; S0 = Maximum Sector Number 98 ; S1 = Selected Sector Number 99 ; 100 ; Phoenix, Enchanced Disk Drive Specicifications, v1.1, Page 8) 101 102 103 [BITS 16] 104 [ORG 100h] 105 106 ;cli 107 ;cld 108 ;push cs 109 ;pop ss 110 ;mov sp, 0FFFEh 111 ;sti 112 113 ;mov bx, SizeOfFile+100 114 115 00000000 BB[4871] mov bx, bss_end 116 117 00000003 83C30F add bx, 15 118 00000006 D1EB shr bx, 1 119 00000008 D1EB shr bx, 1 120 0000000A D1EB shr bx, 1 121 0000000C D1EB shr bx, 1 122 0000000E B44A mov ah, 4Ah ; modify memory allocation 123 ;push cs 124 ;pop es 125 00000010 CD21 int 21h 126 127 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 128 ; clear BSS 129 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 130 ; 03/02/2019 131 132 ;mov cx, bss_end 133 00000012 B9[1870] mov cx, bss_clear_end ; 15/02/2019 134 135 00000015 BF[D668] mov di, bss_start 136 00000018 29F9 sub cx, di 137 0000001A 41 inc cx 138 0000001B D1E9 shr cx, 1 139 0000001D 31C0 xor ax, ax 140 0000001F F3AB rep stosw 141 142 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 143 ; display program name & version 144 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 145 146 00000021 BE[7243] mov si, TrDOS_Welcome 147 00000024 E85B1B call print_msg 148 149 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 150 ; get hard disk name 151 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 152 ; 11/10/2020 153 154 00000027 BE8000 mov si, 80h ; PSP command tail 155 0000002A AC lodsb 156 0000002B 08C0 or al, al ; command tail length 157 0000002D 7431 jz short A_05 ; jump if zero 158 A_01: 159 0000002F AC lodsb 160 00000030 3C20 cmp al, ' ' ; is it SPACE ? 161 00000032 74FB je short A_01 162 00000034 722A jb short A_05 163 164 ; check disk name 165 166 00000036 3C68 cmp al, 'h' 167 00000038 751B jne short A_03 168 0000003A 803C64 cmp byte [si], 'd' 169 0000003D 7516 jne short A_03 170 0000003F 46 inc si 171 00000040 AC lodsb 172 00000041 3C30 cmp al, '0' 173 00000043 7406 je short A_02 174 00000045 720E jb short A_03 175 00000047 3C33 cmp al, '3' 176 00000049 770A ja short A_03 177 A_02: 178 0000004B 803C20 cmp byte [si], ' ' 179 0000004E 720B jb short A_04 180 00000050 7703 ja short A_03 181 00000052 46 inc si 182 00000053 EBF6 jmp short A_02 183 A_03: 184 00000055 BE[C543] mov si, TrDOS_Usage 185 00000058 E94F07 jmp _p_exit 186 A_04: 187 0000005B 0450 add al, 80h - '0' 188 0000005D A2[D668] mov [DrvNum], al ; 80h .. 83h 189 190 A_05: 191 192 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 193 ; get hard disk parameters 194 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 195 ; 11/10/2020 196 197 ; check bios int 13h extensions 198 00000060 B441 mov ah, 41h 199 00000062 BBAA55 mov bx, 55AAh 200 00000065 B280 mov dl, 80h 201 00000067 CD13 int 13h 202 00000069 720B jc short A_06 203 0000006B 81FB55AA cmp bx, 0AA55h 204 0000006F 7505 jne short A_06 205 206 00000071 C606[5A31]01 mov byte [int13h_x], 1 207 A_06: 208 ;mov dl, 80h ; hd0 209 00000076 B408 mov ah, 08h ; return disk parameters 210 00000078 CD13 int 13h 211 0000007A 7313 jnc short A_10 212 A_07: 213 0000007C 803E[D668]80 cmp byte [DrvNum], 80h ; hard disk name option ? 214 00000081 7206 jb short A_09 ; no, default 215 A_08: 216 00000083 BE[5E64] mov si, msg_drv_not_ready ; drive not ready 217 00000086 E92107 jmp _p_exit 218 A_09: 219 00000089 BE[8864] mov si, msg_not_any_disks ; there is not a hard disk 220 0000008C E91B07 jmp _p_exit 221 A_10: 222 0000008F 08E4 or ah, ah ; ah = 0 ? 223 00000091 75E9 jnz short A_07 ; no, there is an error ! 224 225 00000093 8816[D768] mov [hdc], dl ; number of hard disks 226 227 00000097 A0[D668] mov al, [DrvNum] 228 229 0000009A 3C80 cmp al, 80h 230 0000009C 7308 jnb short A_11 ; option 231 ; default 232 0000009E C606[D668]80 mov byte [DrvNum], 80h 233 000000A3 E98F00 jmp A_14 234 A_11: 235 ; hard disk name option 236 000000A6 80C27F add dl, 7Fh 237 238 000000A9 38D0 cmp al, dl 239 000000AB 77D6 ja short A_08 240 241 000000AD 80FA80 cmp dl, 80h 242 000000B0 760C jna short A_13 ; hd0 parameters are ready 243 A_12: 244 000000B2 88C2 mov dl, al ; [DrvNum] 245 246 000000B4 B408 mov ah, 08h ; return (get) disk parameters 247 000000B6 CD13 int 13h 248 000000B8 72C2 jc short A_07 249 000000BA 08E4 or ah, ah 250 000000BC 75BE jnz short A_07 251 A_13: 252 000000BE 88C8 mov al, cl 253 000000C0 243F and al, 3Fh ; 63 254 000000C2 C0E906 shr cl, 6 255 000000C5 86E9 xchg ch, cl 256 000000C7 41 inc cx 257 000000C8 41 inc cx ; 15/10/2020 ; BIOS BugFix 258 ; (for reserved last cylinder) 259 000000C9 890E[723F] mov [cylinders], cx 260 ;mov word [cylinders+2], 0 ; 16/10/2020 261 000000CD FEC6 inc dh 262 000000CF 8836[703F] mov [heads], dh 263 000000D3 A2[6E3F] mov [sectors], al 264 000000D6 F6E6 mul dh 265 000000D8 A3[986D] mov [hs], ax ; heads*sectors ; 15/10/2020 266 000000DB F7E1 mul cx 267 000000DD A3[DA68] mov [disksize], ax 268 000000E0 8916[DC68] mov [disksize+2], dx 269 000000E4 83E801 sub ax, 1 ; 17/10/2020 270 000000E7 83DA00 sbb dx, 0 271 000000EA A3[DE68] mov [chs_limit], ax 272 000000ED 8916[E068] mov [chs_limit+2], dx 273 274 000000F1 803E[5A31]01 cmp byte [int13h_x], 1 275 000000F6 0F82D700 jb A_20 276 277 000000FA BE[2C71] mov si, gdp_buffer 278 ;mov word [si], 30 ; buffer length (minimum) 279 000000FD C7041A00 mov word [si], 26 ; buffer length (minimum) 280 00000101 B448 mov ah, 48h 281 00000103 8A16[D668] mov dl, [DrvNum] 282 00000107 CD13 int 13h 283 00000109 0F82C400 jc A_20 284 0000010D 20E4 and ah, ah 285 0000010F 0F85BE00 jnz A_20 286 287 ; number of physical sectors 288 00000113 8B4410 mov ax, [si+16] 289 00000116 8B5412 mov dx, [si+18] 290 00000119 A3[DA68] mov [disksize], ax 291 0000011C 8916[DC68] mov [disksize+2], dx 292 293 ; 15/10/2020 294 00000120 8B0E[986D] mov cx, [hs] 295 00000124 E8560B call div32 296 ; 16/10/2020 297 ;mov [lba_cyls], ax 298 ;mov [lba_cyls+2], dx 299 00000127 A3[723F] mov [cylinders], ax 300 0000012A 8916[743F] mov [cylinders+2], dx 301 0000012E 891E[E268] mov [lba_chs_remain], bx 302 303 00000132 E99C00 jmp A_20 304 A_14: 305 00000135 80FA01 cmp dl, 1 306 00000138 7684 jna short A_13 ; [DrvNum] = 80h 307 308 0000013A 80C230 add dl, '0' ; '2' to '4' 309 0000013D 8816[8844] mov byte [TrDOS_dnmax], dl 310 311 00000141 BE[6A44] mov si, TrDOS_Options 312 00000144 E83B1A call print_msg 313 314 ; check bios int 13h extensions 315 00000147 803E[5A31]01 cmp byte [int13h_x], 1 316 0000014C 732D jnb short A_16 317 A_15: 318 0000014E 8A16[D668] mov dl, [DrvNum] 319 00000152 B408 mov ah, 08h ; return disk parameters 320 00000154 CD13 int 13h 321 00000156 724D jc short A_17 322 00000158 08E4 or ah, ah 323 0000015A 7549 jnz short A_17 324 325 0000015C 88C8 mov al, cl 326 0000015E 243F and al, 3Fh ; 63 327 00000160 C0E906 shr cl, 6 328 00000163 86E9 xchg ch, cl 329 00000165 41 inc cx 330 00000166 FEC6 inc dh 331 00000168 F6E6 mul dh 332 0000016A F7E1 mul cx 333 334 ; dx:ax = disk size 335 336 0000016C E89D02 call display_hd_row 337 338 0000016F FE0E[D768] dec byte [hdc] 339 00000173 7430 jz short A_17 340 00000175 FE06[D668] inc byte [DrvNum] 341 00000179 EBD3 jmp short A_15 342 A_16: 343 0000017B BE[2C71] mov si, gdp_buffer 344 ;mov word [si], 30 ; buffer length (minimum) 345 0000017E C7041A00 mov word [si], 26 ; buffer length (minimum) 346 00000182 B448 mov ah, 48h 347 00000184 8A16[D668] mov dl, [DrvNum] 348 00000188 CD13 int 13h 349 0000018A 72C2 jc short A_15 350 0000018C 20E4 and ah, ah 351 0000018E 75BE jnz short A_15 352 353 ; number of phsical sectors 354 00000190 8B4410 mov ax, [si+16] 355 00000193 8B5412 mov dx, [si+18] 356 357 ; dx:ax = disk size 358 359 00000196 E87302 call display_hd_row 360 361 00000199 FE0E[D768] dec byte [hdc] 362 0000019D 7406 jz short A_17 363 0000019F FE06[D668] inc byte [DrvNum] 364 000001A3 EBD6 jmp short A_16 365 A_17: 366 000001A5 BE[5F55] mov si, CRLF 367 000001A8 E8D719 call print_msg 368 369 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 370 ; hard disk number input (getchar) 371 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 372 ; 11/10/2020 373 374 A_18: 375 000001AB 31C0 xor ax, ax 376 000001AD CD16 int 16h ; wait for keyboard command 377 378 000001AF 83F800 cmp ax, 0 ; CTRL+BREAK 379 000001B2 761A jna short A_19 380 381 000001B4 3C03 cmp al, 'C'-40h ; 3 382 000001B6 7416 je short A_19 ; CTRL+C 383 000001B8 3C1B cmp al, 27 ; ESCape 384 000001BA 7412 je short A_19 385 386 000001BC 3C31 cmp al, '1' ; "(1) hd0" 387 000001BE 72EB jb short A_18 ; retry 388 000001C0 3A06[8844] cmp al, [TrDOS_dnmax] ; ('2' to '4') 389 000001C4 77E5 ja short A_18 ; retry 390 000001C6 044F add al, 80h-'1' ; bios disk num (80h-83h) 391 000001C8 A2[D668] mov [DrvNum], al 392 000001CB E9E4FE jmp A_12 ; get disk parameters 393 A_19: 394 000001CE E9DC05 jmp _exit ; Exit 395 396 A_20: 397 398 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 399 ; read masterboot sector 400 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 401 ; 12/10/2020 402 403 000001D1 BB[DA55] mov bx, MasterBootBuff 404 000001D4 B90100 mov cx, 1 ; cylinder = 0 405 ; sector = 1 406 000001D7 B600 mov dh, 0 ; head = 0 407 000001D9 8A16[D668] mov dl, [DrvNum] 408 000001DD B80102 mov ax, 0201h ; read one sector 409 000001E0 CD13 int 13h 410 000001E2 7306 jnc short A_21 411 412 000001E4 BE[5E64] mov si, msg_drv_not_ready ; drive not ready 413 000001E7 E98700 jmp A_26 414 A_21: 415 416 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 417 ; display CHS values and disk size (LBA) and partition table 418 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 419 ; 12/10/2020 420 421 000001EA B80300 mov ax, 3 ; clear screen 422 000001ED CD10 int 10h 423 424 000001EF E80321 call init_partition_table ; 13/10/2020 425 426 000001F2 E80C1B call display_chs_table 427 428 000001F5 A1[DA68] mov ax, [disksize] 429 000001F8 8B16[DC68] mov dx, [disksize+2] 430 431 000001FC 81FA0001 cmp dx, 256 ; >= 8GB 432 00000200 7315 jnb short A_22 433 434 ;mov cx, 2048 ; /2048 (2048 sectors = 1 MB) 435 ;div cx 436 437 ; shift dx:ax to 8 bits right (/256) 438 00000202 88E0 mov al, ah 439 00000204 88D4 mov ah, dl 440 00000206 C1E803 shr ax, 3 ; /8 441 ; result = (dx:ax)/2048 442 443 ; ax = 0 to 8191 444 445 00000209 C606[BE44]4D mov byte [TrDOS_hdrow_unit], 'M' 446 0000020E EB11 jmp short A_23 447 448 449 A_29: ; 16/10/2020 450 00000210 E88E27 call partition_table_fix 451 00000213 73D5 jnc short A_21 452 453 00000215 CD20 int 20h 454 ;here: 455 ;jmp short here 456 457 A_22: 458 ; 1024 MB = 1GB (2097152 sectors) 459 ; DX/32 --> GB 460 00000217 89D0 mov ax, dx 461 00000219 C1E805 shr ax, 5 ; /32 462 463 ; ax = 8 to 2047 464 0000021C C606[BE44]47 mov byte [TrDOS_hdrow_unit], 'G' 465 A_23: 466 ;xor dx, dx 467 00000221 BE[C444] mov si, TrDOS_hdrow_capacity 468 00000224 E82402 call convert_to_decimal 469 470 00000227 BE[CB44] mov si, TrDOS_disksize 471 0000022A E85519 call print_msg 472 473 0000022D BE[C444] mov si, TrDOS_hdrow_capacity 474 00000230 E84F19 call print_msg 475 476 00000233 BE[BE44] mov si, TrDOS_hdrow_unit 477 00000236 E84919 call print_msg 478 479 ; 16/10/2020 480 ;cmp word [lba_cyls+2], 0 481 00000239 833E[743F]00 cmp word [cylinders+2], 0 482 0000023E 7736 ja short A_27 ; Huge disk ! number of (lba) cylinders > 65335 483 ; Current FDISK version (v3) can not be used ! 484 485 00000240 BE[5F55] mov si, CRLF 486 00000243 E83C19 call print_msg 487 488 00000246 E8AA25 call dpt_1 489 490 00000249 BE[5F55] mov si, CRLF 491 0000024C E83319 call print_msg 492 493 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 494 ; display edit or exit option, getchar 495 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 496 497 0000024F BE[8E53] mov si, msg_edit_or_exit 498 00000252 E82D19 call print_msg 499 A_24: 500 00000255 30E4 xor ah, ah 501 00000257 CD16 int 16h 502 503 00000259 3C0D cmp al, 13 ; CR (ENTER) key 504 0000025B 744A je short A_28 505 506 0000025D 3C1B cmp al, 27 ; ESCape key 507 0000025F 740D je short A_25 508 509 00000261 3C20 cmp al, 32 ; SPACE key 510 00000263 7442 je short A_28 511 512 00000265 3C03 cmp al, 3 ; CTRL+C 513 00000267 7405 je short A_25 514 515 00000269 83F800 cmp ax, 0 ; CTRL+BREAK 516 0000026C 77E7 ja short A_24 517 A_25: 518 0000026E BE[5F55] mov si, CRLF 519 A_26: 520 00000271 E80E19 call print_msg 521 522 00000274 CD20 int 20h 523 ;here: 524 ; jmp short here 525 526 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 527 ; display fdisk program disk capacity limit message and then exit 528 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 529 530 A_27: 531 ; 16/10/2020 532 ; 15/10/2020 533 ; Display FDISK (v3) capacity limit (error) message 534 535 00000276 B8FFFF mov ax, 65535 536 00000279 F726[986D] mul word [hs] 537 ; 1024 MB = 1GB (2097152 sectors) 538 ; DX/32 --> GB 539 0000027D 89D0 mov ax, dx 540 0000027F C1E805 shr ax, 5 ; /32 541 542 ; ax = 8 to 2047 543 00000282 C606[BE44]47 mov byte [TrDOS_hdrow_unit], 'G' 544 ;mov byte [TrDOS_hdrow_unit+1], 'B' 545 00000287 C606[C044]2E mov byte [TrDOS_hdrow_unit+2], '.' 546 547 ;xor dx, dx 548 0000028C BE[C444] mov si, TrDOS_hdrow_capacity 549 0000028F E8B901 call convert_to_decimal 550 551 00000292 BE[DA44] mov si, msg_fdisk_capacity_err 552 00000295 E8EA18 call print_msg 553 554 00000298 BE[C444] mov si, TrDOS_hdrow_capacity 555 0000029B E8E418 call print_msg 556 557 0000029E BE[BE44] mov si, TrDOS_hdrow_unit 558 000002A1 E8DE18 call print_msg 559 560 000002A4 E90605 jmp _exit 561 562 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 563 ; check defective pte and then init extended partition table(s) 564 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 565 566 A_28: 567 000002A7 E8BE01 call check_defective_partition 568 000002AA 0F8262FF jc A_29 ; ds:si -> defective pte 569 570 ; 17/10/2020 571 ; 26/02/2019 572 000002AE 803E[6370]00 cmp byte [epnumber], 0 573 000002B3 7603 jna short A_30 574 575 000002B5 E8F92C call init_ext_partition_table 576 A_30: 577 ; 17/10/2020 578 ; 04/02/2019 579 ;xor al, al ; MBR/PRIMARY PARTITIONS 580 000002B8 E82025 call display_partition_table ; 12/03/2021 581 582 ; 17/10/2020 583 000002BB 803E[6070]00 cmp byte [pcount], 0 584 000002C0 0F86F000 jna A_38 ; empty partition table 585 586 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 587 ; check CHS parms against start sector address and partition size 588 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 589 590 A_31: 591 ; Check disk parameters with current CHS settings 592 000002C4 31DB xor bx, bx 593 000002C6 31C9 xor cx, cx 594 A_32: 595 ; 17/10/2020 596 000002C8 80BF[1D70]00 cmp byte [part_table_sys_id+bx], 0 597 000002CD 767C jna short A_33 598 599 ; 27/10/2020 600 ;mov ax, [sectors] 601 ;mul word [heads] 602 ; dx = 0, ax = heads*sectors 603 604 000002CF 8B97[1B70] mov dx, [part_table_start_cyl+bx] 605 ; 27/10/2020 606 000002D3 81FAFF03 cmp dx, 1023 ; fixed cylinder number (> 1023) 607 ; (partition's start sector is used for fixing) 608 000002D7 7772 ja short A_33 ; no need to check CHS parms here 609 ; (also, CHS to LBA calculation is not applicable) 610 000002D9 A1[986D] mov ax, [hs] ; heads*sectors 611 612 000002DC F7E2 mul dx 613 ; dx:ax = cylinder*heads*spt 614 000002DE 89C6 mov si, ax 615 000002E0 89D7 mov di, dx 616 000002E2 8A87[1970] mov al, [part_table_start_head+bx] 617 000002E6 F626[6E3F] mul byte [sectors] 618 000002EA 01C6 add si, ax 619 000002EC 83D700 adc di, 0 620 ; di:si = (cylinder*heads*spt) + head*spt 621 000002EF 8A87[1A70] mov al, [part_table_start_sector+bx] 622 000002F3 30E4 xor ah, ah 623 000002F5 FEC8 dec al ; 1 -> 0 624 000002F7 01C6 add si, ax 625 000002F9 83D700 adc di, 0 626 ; di:si = (cylinder*heads*spt) + head*spt + sector - 1 627 ; (start sector as converted to LBA) 628 629 000002FC 3BBF[2470] cmp di, [part_table_rel_sec_hw+bx] 630 00000300 7556 jne short A_34 ; Invalid ! 631 632 00000302 3BB7[2270] cmp si, [part_table_rel_sec_lw+bx] 633 00000306 7550 jne short A_34 ; Invalid ! 634 ; di:si = partition's start sector (LBA) 635 636 ; 27/10/2020 637 ;mov ax, [sectors] 638 ;mul word [heads] 639 ; dx = 0, ax = heads*sectors 640 641 00000308 8B97[2070] mov dx, [part_table_end_cyl+bx] 642 643 ; 27/10/2020 644 0000030C 81FAFF03 cmp dx, 1023 ; fixed cylinder number (> 1023) 645 ; (partition's end sector is used for fixing) 646 00000310 7739 ja short A_33 ; no need to check CHS parms here 647 ; (also, CHS to LBA calculation is not applicable) 648 00000312 A1[986D] mov ax, [hs] ; heads*sectors 649 650 00000315 F7E2 mul dx 651 ; dx:ax = cylinder*heads*spt 652 00000317 89C6 mov si, ax 653 00000319 89D7 mov di, dx 654 0000031B 8A87[1E70] mov al, [part_table_end_head+bx] 655 0000031F F626[6E3F] mul byte [sectors] 656 00000323 01C6 add si, ax 657 00000325 83D700 adc di, 0 658 ; di:si = (cylinder*heads*spt) + head*spt 659 00000328 8A87[1F70] mov al, [part_table_end_sector+bx] 660 0000032C 30E4 xor ah, ah 661 ;dec al ; 63 -> 62 662 0000032E 01C6 add si, ax 663 00000330 83D700 adc di, 0 664 ; di:si = (cylinder*heads*spt) + head*spt + sector 665 ; (end sector + 1 as converted to LBA) 666 00000333 8B87[2670] mov ax, [part_table_num_sec_lw+bx] 667 00000337 8B97[2870] mov dx, [part_table_num_sec_hw+bx] 668 669 0000033B 0387[2270] add ax, [part_table_rel_sec_lw+bx] 670 0000033F 1397[2470] adc dx, [part_table_rel_sec_hw+bx] 671 ; dx:ax = partition's end sector (LBA) + 1 672 673 00000343 39F0 cmp ax, si 674 00000345 7511 jne short A_34 ; Invalid ! 675 676 00000347 39FA cmp dx, di 677 00000349 750D jne short A_34 ; Invalid ! 678 A_33: 679 0000034B FEC1 inc cl 680 681 0000034D 80F904 cmp cl, 4 682 00000350 730E jnb short A_35 683 684 00000352 83C312 add bx, 18 ; partition table structure size 685 686 00000355 E970FF jmp A_32 687 A_34: 688 00000358 BE[975F] mov si, msg_defective_pt 689 0000035B E82418 call print_msg 690 0000035E EB54 jmp short A_38 691 692 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 693 ; sort MBR partitions 694 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 695 696 A_35: 697 ; LBA and CHS values of all partitions are OK (here) 698 699 ; sort MBR (primary) partitions 700 701 00000360 E86321 call sort_partition_table 702 703 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 704 ; Check partition (start, size) overlaps after sorting 705 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 706 707 ; Checking partition overlaps (via start and end cylinders) 708 709 00000363 31DB xor bx, bx 710 00000365 BA1200 mov dx, 18 711 A_36: 712 00000368 FEC3 inc bl 713 714 0000036A 8A87[A86D] mov al, [bx+sort] 715 0000036E F6E2 mul dl 716 00000370 89C6 mov si, ax ; current 717 718 00000372 80BC[1D70]00 cmp byte [part_table_sys_id+si], 0 719 00000377 7636 jna short A_37 720 721 00000379 8A87[A76D] mov al, [bx+sort-1] 722 0000037D F6E2 mul dl 723 0000037F 89C7 mov di, ax ; previous 724 725 00000381 8B85[2070] mov ax, [part_table_end_cyl+di] 726 00000385 3B84[1B70] cmp ax, [part_table_start_cyl+si] 727 00000389 7224 jb short A_37 728 ; 29/10/2020 729 0000038B 77CB ja short A_34 ; overlap ! 730 731 ; 17/10/2020 732 ;and ax, ax 733 ;jnz short A_34 ; overlap error (except empty entries) 734 735 ; 29/10/2020 736 ; same cylinder 737 ; check end-start sectors for overlap 738 739 0000038D 21C0 and ax, ax 740 0000038F 741E jz short A_37 ; empty pt entries 741 ; (previous pte is empty) 742 743 00000391 8B85[2270] mov ax, [part_table_rel_sec_lw+di] ; previous 744 00000395 8B95[2470] mov dx, [part_table_rel_sec_hw+di] 745 00000399 0385[2670] add ax, [part_table_num_sec_lw+di] 746 0000039D 1395[2870] adc dx, [part_table_num_sec_hw+di] 747 ;jc short A_34 748 ; dx:ax = end sector + 1 749 000003A1 3B94[2470] cmp dx, [part_table_rel_sec_hw+si] ; current 750 000003A5 7208 jb short A_37 751 000003A7 77AF ja short A_34 ; overlap error ! 752 000003A9 3B84[2270] cmp ax, [part_table_rel_sec_lw+si] 753 000003AD 73A9 jnb short A_34 ; overlap error ! 754 A_37: 755 000003AF 80FB03 cmp bl, 3 756 000003B2 72B4 jb short A_36 757 758 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 759 ; display partition table editing options 760 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 761 762 A_38: 763 000003B4 BE[C859] mov si, mbr_editing_options 764 000003B7 E8C817 call print_msg 765 766 000003BA BE[765A] mov si, enter_option_number_msg 767 000003BD E8C217 call print_msg 768 769 000003C0 803E[A66D]00 cmp byte [ldrives], 0 770 000003C5 760C jna short A_39 771 772 000003C7 BE[5F55] mov si, CRLF 773 000003CA E8B517 call print_msg 774 775 000003CD BE[DF60] mov si, str_display_ebr_pt 776 000003D0 E8AF17 call print_msg 777 A_39: 778 ;mov si, CRLF 779 ;call print_msg 780 781 A_40: 782 000003D3 30E4 xor ah, ah 783 000003D5 CD16 int 16h 784 785 000003D7 3C30 cmp al, '0' 786 000003D9 742A je short A_41 787 788 000003DB 3C31 cmp al, '1' 789 000003DD 0F84A600 je create_partition 790 000003E1 3C32 cmp al, '2' 791 000003E3 0F843701 je activate_partition 792 000003E7 3C33 cmp al, '3' 793 000003E9 0F84D001 je delete_partition 794 000003ED 3C34 cmp al, '4' 795 000003EF 0F84D302 je write_pt_mbr 796 797 000003F3 3C1B cmp al, 27 ; ESCape 798 000003F5 740E je short A_41 799 800 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 801 ; display (EPT) logical drives/partitions if 'SPACE' is pressed 802 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 803 804 ; 28/02/2019 805 000003F7 803E[A66D]00 cmp byte [ldrives], 0 806 000003FC 76D5 jna short A_40 807 808 000003FE 3C20 cmp al, 20h ; SPACE 809 00000400 75D1 jne short A_40 810 811 00000402 E9CF25 jmp display_extended_pt 812 813 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 814 ; exit if ESC key or '0' is pressed 815 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 816 817 A_41: 818 ; terminate 819 00000405 CD20 int 20h 820 821 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 822 ; display partition table again 823 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 824 825 A_42: 826 ; 24/02/2019 827 ;xor al, al ; MBR/PRIMARY PARTITIONS 828 00000407 E8D123 call display_partition_table ; 12/03/2021 829 0000040A EBA8 jmp short A_38 830 831 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 832 ; display a row for hard disk name, number and capacity 833 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 834 ; 11/10/2020 835 836 display_hd_row: 837 ; dx:ax = disk size 838 839 0000040C 81FA0001 cmp dx, 256 ; >= 8GB 840 00000410 730E jnb short dhdr_1 841 842 ;mov cx, 2048 ; /2048 (2048 sectors = 1 MB) 843 ;div cx 844 845 ; shift dx:ax to 8 bits right (/256) 846 00000412 88E0 mov al, ah 847 00000414 88D4 mov ah, dl 848 00000416 C1E803 shr ax, 3 ; /8 849 ; result = (dx:ax)/2048 850 851 ; ax = 0 to 8191 852 853 00000419 C606[BE44]4D mov byte [TrDOS_hdrow_unit], 'M' 854 0000041E EB0A jmp short dhdr_2 855 856 dhdr_1: 857 ; 1024 MB = 1GB (2097152 sectors) 858 ; DX/32 --> GB 859 00000420 89D0 mov ax, dx 860 00000422 C1E805 shr ax, 5 ; /32 861 862 ; ax = 8 to 2047 863 00000425 C606[BE44]47 mov byte [TrDOS_hdrow_unit], 'G' 864 dhdr_2: 865 ;xor dx, dx 866 0000042A BE[C444] mov si, TrDOS_hdrow_capacity 867 0000042D E81B00 call convert_to_decimal 868 869 00000430 FE06[A944] inc byte [TrDOS_hdrow_n] ; next number for "(#)" 870 871 00000434 BE[A644] mov si, TrDOS_hdrow 872 00000437 E84817 call print_msg 873 0000043A BE[C444] mov si, TrDOS_hdrow_capacity ; db "#### ", 0 874 0000043D E84217 call print_msg 875 00000440 BE[BE44] mov si, TrDOS_hdrow_unit ; "GB" or "MB" 876 00000443 E83C17 call print_msg 877 878 00000446 FE06[AE44] inc byte [TrDOS_hdrow_i] ; next number for "hd#" 879 880 0000044A C3 retn 881 882 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 883 ; convert binary number to decimal character string 884 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 885 ; 11/10/2020 886 887 convert_to_decimal: 888 ; ax = binary number 889 ; si = decimal string start addr (max. 5 digits + space) 890 0000044B B90A00 mov cx, 10 891 0000044E 89E5 mov bp, sp 892 ctd_1: 893 00000450 31D2 xor dx, dx 894 00000452 F7F1 div cx 895 00000454 52 push dx ; 0 to 9 896 00000455 09C0 or ax, ax 897 00000457 75F7 jnz short ctd_1 898 ctd_2: 899 00000459 58 pop ax 900 0000045A 0430 add al, '0' 901 0000045C 8804 mov [si], al 902 0000045E 46 inc si 903 0000045F 39E5 cmp bp, sp 904 00000461 77F6 ja short ctd_2 905 ;mov byte [si], 20h ; space before size unit char 906 ;inc si 907 ;mov byte [si], 0 ; ASCIIZ string terminator (Z) 908 00000463 C7042000 mov word [si], 20h 909 00000467 C3 retn 910 911 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 912 ; check defective partition signature 913 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 914 ; 16/10/2020 915 916 check_defective_partition: 917 00000468 BB[1870] mov bx, part_table_boot_ind 918 0000046B 31F6 xor si, si 919 chk_dp_1: 920 0000046D 803FFF cmp byte [bx], 0FFh ; invalid/defective/partition sign 921 00000470 7509 jne short chk_dp_2 922 00000472 C1E604 shl si, 4 ; * 16 923 00000475 81C6[9857] add si, MasterBootBuff+446 924 00000479 F9 stc 925 0000047A C3 retn 926 chk_dp_2: 927 ;cmp bx, part_table_boot_ind+(18*4) 928 0000047B 83FE03 cmp si, 3 929 0000047E 7306 jnb short chk_dp_3 930 00000480 83C312 add bx, 18 931 00000483 46 inc si 932 00000484 EBE7 jmp short chk_dp_1 933 chk_dp_3: 934 ;sub si, si 935 00000486 C3 retn 936 937 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 938 ; create a disk partition (on MBR partition table) 939 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 940 ; 18/10/2020 941 942 create_partition: 943 ; 19/10/2020 944 ; 10/02/2019 (hdimage.s) 945 00000487 31C0 xor ax, ax 946 00000489 A2[746D] mov byte [wholedisk], al ; 0 ; Reset wholedisk flag 947 948 ; 19/10/2020 949 0000048C 3806[6070] cmp byte [pcount], al ; 0 ; number of (valid) partitions 950 00000490 7621 jna short cp_1 951 ;cp_0: 952 00000492 803E[6070]04 cmp byte [pcount], 4 953 00000497 731D jnb short cp_2 ; full pt ! 954 955 ; al = 0 956 00000499 E88E20 call find_part_free_space 957 ; Following values are for the max. free space on disk 958 959 0000049C 21C9 and cx, cx 960 0000049E 7427 jz short cp_3 ; there is not free space on disk 961 962 ;mov [c_cylinders], cx ; count of free cylinders in the gap 963 000004A0 891E[FE70] mov [c_fspc_offset], bx ; offset from beginning of 'fspc:' 964 ;mov [c_gap], al ; gap (space index) number of this free space 965 ; ; 0 -> before partition 1 (as PTE) 966 ; ; 1-2-3 -> between partitions 1 to 4 967 ; ; 4 -> after partition 4 (as PTE) 968 969 ; Start to job with non-aligned (full) free sectors of this max. space 970 971 000004A4 8B87[B470] mov ax, [free_space.sectors_unused+bx] 972 000004A8 8B97[B670] mov dx, [free_space.sectors_unused+2+bx] 973 974 000004AC A3[706D] mov [pp_Sectors], ax 975 000004AF 8916[726D] mov [pp_Sectors+2], dx 976 cp_1: 977 000004B3 E9E907 jmp B_01 ; New/Empty disk, create partition menu 978 979 cp_2: 980 ; 13/02/2019 981 ; There is not a free pt entry to create a new partition 982 983 ;xor al, al ; MBR/PRIMARY PARTITIONS 984 000004B6 E82223 call display_partition_table ; 12/03/2021 985 986 000004B9 BE[585B] mov si, msg_full_pt 987 000004BC E8C316 call print_msg 988 000004BF BE[855B] mov si, msg_to_create_new_p 989 000004C2 E8BD16 call print_msg 990 991 000004C5 EB67 jmp ap_0 992 cp_3: 993 ; 19/10/2020 994 000004C7 803E[6370]00 cmp byte [epnumber], 0 995 000004CC 7708 ja short create_logical_drives 996 ;cp_4: 997 ; 15/02/2019 998 ; There is not (enough) free space to create a new partition 999 1000 000004CE BE[A35B] mov si, msg_no_free_space 1001 000004D1 E8AE16 call print_msg 1002 000004D4 EB58 jmp ap_0 1003 1004 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1005 ; create logical -dos- drives 1006 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1007 ; 19/10/2020 1008 1009 create_logical_drives: 1010 ; 05/03/2019 1011 000004D6 E87A28 call check_ext_free_space 1012 000004D9 723B jc short cld_5 1013 cld_1: 1014 ; 05/03/2019 1015 000004DB 803E[A66D]04 cmp byte [ldrives], 4 1016 000004E0 7203 jb short cld_2 1017 000004E2 E95D25 jmp eetc_2 1018 cld_2: 1019 ; 01/11/2020 1020 000004E5 A3[2271] mov [ep_free_sectors], ax 1021 000004E8 8916[2471] mov [ep_free_sectors+2], dx 1022 1023 000004EC BE[E263] mov si, msg_c_ldd_q 1024 000004EF E89016 call print_msg 1025 cld_3: 1026 000004F2 28E4 sub ah, ah 1027 000004F4 CD16 int 16h 1028 1029 000004F6 3C1B cmp al, 27 ; ESCAPE key 1030 ;je cp_esc 1031 000004F8 7419 je short cld_6 ; 19/10/2020 1032 000004FA 24DF and al, 0DFh 1033 000004FC 3C4E cmp al, 'N' 1034 000004FE 740D je short cld_4 1035 00000500 3C59 cmp al, 'Y' 1036 00000502 75EE jne short cld_3 1037 00000504 BE[985C] mov si, _msg_YES 1038 00000507 E87816 call print_msg 1039 1040 0000050A E96825 jmp edit_ext_table_create_x 1041 cld_4: 1042 0000050D BE[9E5C] mov si, _msg_NO 1043 00000510 E86F16 call print_msg 1044 cld_6: 1045 ;jmp cp_esc 1046 ; 19/10/2020 1047 00000513 E9F1FE jmp A_42 1048 cld_5: 1049 00000516 BE[B263] mov si, msg_c_part_error 1050 00000519 E86616 call print_msg 1051 1052 ; 21/03/2021 1053 ;cmp byte [ldrives], 3 1054 ;;jna short cld_2 1055 ; 21/03/2021 1056 ;jna short ap_0 1057 1058 ;mov si, msg_c_ldd_error 1059 ;call print_msg 1060 1061 0000051C EB10 jmp short ap_0 1062 1063 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1064 ; set active partition 1065 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1066 ; 19/10/2020 1067 1068 activate_partition: 1069 ; 12/02/2019 1070 ;xor al, al ; MBR/PRIMARY PARTITIONS 1071 0000051E E8BA22 call display_partition_table ; 12/03/2021 1072 1073 00000521 803E[6070]00 cmp byte [pcount], 0 1074 00000526 7713 ja short ap_1 1075 1076 00000528 BE[0C5B] mov si, msg_empty_pt 1077 0000052B E85416 call print_msg 1078 ap_0: 1079 0000052E BE[BB55] mov si, msg_press_any_key 1080 00000531 E84E16 call print_msg 1081 1082 00000534 30E4 xor ah, ah 1083 00000536 CD16 int 16h 1084 ap_5: 1085 ;jmp ap_esc 1086 ; 19/10/2020 1087 00000538 E9CCFE jmp A_42 1088 1089 ap_1: 1090 ; Set valid_ppnums (MBR partition IDs) list 1091 0000053B BE[9857] mov si, MasterBootBuff+pTableOffset ; MasterBootBuff+446 1092 0000053E BB[BA6F] mov bx, valid_ppnums 1093 00000541 B104 mov cl, 4 1094 ap_2: 1095 00000543 8A4404 mov al, [si+ptFileSystemID] 1096 00000546 8807 mov [bx], al 1097 00000548 FEC9 dec cl 1098 0000054A 7406 jz short ap_3 1099 0000054C 43 inc bx 1100 0000054D 83C610 add si, 16 1101 00000550 EBF1 jmp short ap_2 1102 ap_3: 1103 00000552 BE[8B5D] mov si, msg_enter_pn_to_act 1104 00000555 E82A16 call print_msg 1105 ap_getchar: 1106 00000558 30E4 xor ah, ah 1107 0000055A CD16 int 16h 1108 1109 ; 19/10/2020 1110 0000055C 3C1B cmp al, 27 1111 ;je ap_esc 1112 0000055E 74D8 je short ap_5 1113 1114 ;cmp al, '0' 1115 ;;je ap_esc 1116 ;je short ap_5 1117 1118 00000560 3C31 cmp al, '1' 1119 00000562 72F4 jb short ap_getchar 1120 00000564 3C34 cmp al, '4' 1121 00000566 77F0 ja short ap_getchar 1122 1123 00000568 30E4 xor ah, ah 1124 0000056A 89C2 mov dx, ax 1125 1126 0000056C 80EA31 sub dl, '1' 1127 0000056F 89D6 mov si, dx 1128 00000571 38A4[BA6F] cmp byte [si+valid_ppnums], ah ; 0 1129 00000575 76E1 jna short ap_getchar ; Empty partition table entry, it is not shown 1130 1131 00000577 BB0700 mov bx, 07h 1132 0000057A B409 mov ah, 09h 1133 0000057C B90100 mov cx, 1 1134 0000057F CD10 int 10h 1135 1136 00000581 BE[9857] mov si, MasterBootBuff+pTableOffset 1137 00000584 BF[1870] mov di, part_table_boot_ind ; (**) 1138 1139 ; Clear all of possible active partition flags 1140 00000587 8834 mov [si], dh ; 0 1141 00000589 887410 mov [si+16], dh ; 0 1142 0000058C 887420 mov [si+32], dh ; 0 1143 0000058F 887430 mov [si+48], dh ; 0 1144 1145 ; This may not be needed !? 1146 ; (**) (Primary partitions structure/list) 1147 00000592 8835 mov [di], dh ; 0 1148 00000594 887512 mov [di+18], dh ; 0 1149 00000597 887524 mov [di+36], dh ; 0 1150 0000059A 887536 mov [di+54], dh ; 0 1151 1152 0000059D 20D2 and dl, dl 1153 0000059F 740D jz short ap_4 1154 1155 000005A1 89D0 mov ax, dx 1156 1157 000005A3 C0E004 shl al, 4 ; * 16 1158 000005A6 01C6 add si, ax 1159 1160 000005A8 B012 mov al, 18 1161 000005AA F6E2 mul dl ; 1 to 3 1162 000005AC 01C7 add di, ax 1163 ap_4: 1164 ; Then set active partition as requested by user 1165 000005AE C60480 mov byte [si], 80h 1166 000005B1 C60580 mov byte [di], 80h ; (**) 1167 1168 000005B4 BE[5F55] mov si, CRLF ; Next line 1169 000005B7 E8C815 call print_msg 1170 1171 ; NOTE: Only the MBR buffer has been changed 1172 ; (Masterboot sector will not be updated unless/till 1173 ; MBR partition table -and MBR code- will be written 1174 ; to disk image as result of 'write part. table' command.) 1175 1176 ;; wait for 1 second 1177 ;mov ah, 02h 1178 ;int 1Ah 1179 ;mov [GetChar], dh 1180 ;ap_wait: 1181 ;mov ah, 02h 1182 ;int 1Ah 1183 ;cmp dh, [GetChar] 1184 ;je short ap_wait 1185 1186 ; 17/10/2020 1187 000005BA E94AFE jmp A_42 ; display partition table again 1188 1189 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1190 ; delete selected partition 1191 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1192 ; 19/10/2020 1193 1194 delete_partition: 1195 ; 10/02/2019 1196 ;xor al, al ; MBR/PRIMARY PARTITIONS 1197 000005BD E81B22 call display_partition_table ; 12/03/2021 1198 1199 000005C0 803E[6070]00 cmp byte [pcount], 0 1200 000005C5 7712 ja short dp_1 1201 1202 000005C7 BE[0C5B] mov si, msg_empty_pt 1203 000005CA E8B515 call print_msg 1204 1205 000005CD BE[BB55] mov si, msg_press_any_key 1206 000005D0 E8AF15 call print_msg 1207 1208 000005D3 30E4 xor ah, ah 1209 000005D5 CD16 int 16h 1210 1211 000005D7 EB73 jmp short dp_esc 1212 1213 dp_1: 1214 ; Set valid_ppnums (MBR partition IDs) list 1215 000005D9 BE[9857] mov si, MasterBootBuff+pTableOffset ; MasterBootBuff+446 1216 000005DC BB[BA6F] mov bx, valid_ppnums 1217 000005DF B104 mov cl, 4 1218 dp_2: 1219 000005E1 8A4404 mov al, [si+ptFileSystemID] 1220 000005E4 8807 mov [bx], al 1221 000005E6 FEC9 dec cl 1222 000005E8 7406 jz short dp_3 1223 000005EA 43 inc bx 1224 000005EB 83C610 add si, 16 1225 000005EE EBF1 jmp short dp_2 1226 dp_3: 1227 000005F0 BE[C75B] mov si, msg_enter_pn_to_del 1228 000005F3 E88C15 call print_msg 1229 dp_getchar1: 1230 000005F6 30E4 xor ah, ah 1231 000005F8 CD16 int 16h 1232 1233 ; 19/10/2020 1234 000005FA 3C1B cmp al, 27 1235 000005FC 744E je short dp_esc 1236 000005FE 3C30 cmp al, '0' 1237 00000600 744A je short dp_esc 1238 ;cmp al, '1' 1239 00000602 72F2 jb short dp_getchar1 1240 00000604 3C34 cmp al, '4' 1241 00000606 77EE ja short dp_getchar1 1242 1243 00000608 30FF xor bh, bh 1244 0000060A 88C3 mov bl, al 1245 ;dec bl 1246 0000060C 80EB31 sub bl, '1' 1247 0000060F 38BF[BA6F] cmp byte [bx+valid_ppnums], bh ; 0 ; 12/02/2019 1248 00000613 76E1 jna short dp_getchar1 ; Empty partition table entry, it is not shown 1249 1250 00000615 881E[C56F] mov [del_part_num], bl ; Selected partition number to be deleted. 1251 00000619 A2[EB5B] mov [chr_del_pnum1], al ; Partition number for "Enter ..." text 1252 0000061C A2[8D5C] mov [chr_del_pnum2], al ; Partition number for "Do you want ..." text 1253 1254 0000061F BE[EB5B] mov si, chr_del_pnum1 ; write partition number (user input) 1255 00000622 E85D15 call print_msg 1256 1257 ;xor al, al 1258 00000625 A2[EB5B] mov [chr_del_pnum1], al ; 0 ; reset 1259 1260 00000628 BE[EF5B] mov si, msg_delete_partition_q ; question for deleting (with warning) 1261 0000062B E85415 call print_msg 1262 1263 dp_getchar2: 1264 0000062E 30E4 xor ah, ah 1265 00000630 CD16 int 16h 1266 1267 00000632 3C1B cmp al, 27 1268 00000634 7416 je short dp_esc 1269 1270 00000636 24DF and al, 0DFh 1271 00000638 3C59 cmp al, 'Y' 1272 0000063A 7413 je short dp_yes 1273 0000063C 3C4E cmp al, 'N' 1274 0000063E 75EE jne short dp_getchar2 1275 dp_no: 1276 00000640 BE[9F5C] mov si, msg_NO ; Write 'NO' (it may be shown for a moment) 1277 00000643 E83C15 call print_msg 1278 1279 00000646 BE[5F55] mov si, CRLF ; Next line 1280 00000649 E83615 call print_msg 1281 1282 ;jmp short dp_esc 1283 1284 ;cp_esc: 1285 ;ap_esc: 1286 ;wptmbr_esc: 1287 dp_esc: 1288 ;xor al, al ; MBR/PRIMARY PARTITIONS 1289 ;call display_partition_table 1290 ;jmp A_38 ; 17/10/2020 1291 1292 ; 19/10/2020 1293 0000064C E9B8FD jmp A_42 1294 1295 dp_yes: 1296 0000064F BE[995C] mov si, msg_YES ; Write 'YES' (it may be shown for a moment) 1297 00000652 E82D15 call print_msg 1298 1299 00000655 BF[9857] mov di, MasterBootBuff+pTableOffset 1300 00000658 A0[C56F] mov al, [del_part_num] 1301 0000065B 20C0 and al, al 1302 0000065D 7406 jz short dp_4 1303 0000065F 98 cbw 1304 ;xor ah, ah 1305 00000660 C0E004 shl al, 4 ; * 16 1306 00000663 01C7 add di, ax 1307 dp_4: 1308 00000665 BE[5F55] mov si, CRLF ; Next line 1309 00000668 E81715 call print_msg 1310 1311 ; 27/02/2019 1312 0000066B 807D0405 cmp byte [di+ptFileSystemID], 05h ; EXTENDED (CHS) 1313 ;jne short dp_5 1314 0000066F 7406 je short dp_6 1315 ; 24/10/2020 1316 00000671 807D040F cmp byte [di+ptFileSystemID], 0Fh ; EXTENDED (LBA) 1317 00000675 7545 jne short dp_5 1318 dp_6: 1319 00000677 3806[A66D] cmp byte [ldrives], al ; 0 1320 0000067B 763F jna short dp_5 1321 1322 0000067D BE[B55F] mov si, msg_ext_part_del_error 1323 00000680 E8FF14 call print_msg 1324 00000683 BE[F55F] mov si, msg_cancel_continue 1325 00000686 E8F914 call print_msg 1326 1327 00000689 30E4 xor ah, ah 1328 0000068B CD16 int 16h 1329 1330 0000068D 3C1B cmp al, 27 ; ESCape 1331 0000068F 74BB je short dp_esc 1332 1333 00000691 E82C2A call delete_logical_drives 1334 1335 ; 28/02/2019 1336 00000694 803E[A66D]01 cmp byte [ldrives], 1 1337 00000699 73B1 jnb short dp_esc 1338 1339 ;xor al, al ; MBR/PRIMARY PARTITIONS 1340 0000069B E83D21 call display_partition_table ; 12/03/2021 1341 1342 0000069E BE[8860] mov si, msg_delete_ext_part 1343 000006A1 E8DE14 call print_msg 1344 1345 dp_ask_again: 1346 000006A4 28E4 sub ah, ah 1347 000006A6 CD16 int 16h 1348 1349 000006A8 3C1B cmp al, 27 ; ESCape 1350 000006AA 74A0 je short dp_esc 1351 1352 000006AC 3C0D cmp al, 13 ; ENTER/CR 1353 000006AE 75F4 jne short dp_ask_again 1354 1355 000006B0 BF[9857] mov di, MasterBootBuff+pTableOffset 1356 000006B3 A0[C56F] mov al, [del_part_num] 1357 000006B6 98 cbw 1358 000006B7 C0E004 shl al, 4 ; * 16 1359 000006BA 01C7 add di, ax 1360 dp_5: 1361 000006BC 31C0 xor ax, ax 1362 1363 ; clear partition table entry in MBR buffer 1364 000006BE B90800 mov cx, 8 1365 000006C1 F3AB rep stosw 1366 1367 ; NOTE: Only the MBR buffer will be cleared 1368 ; (Masterboot sector will not be updated unless/till 1369 ; MBR partition table -and MBR code- will be written 1370 ; to disk image as result of 'write part. table' command.) 1371 1372 000006C3 E924FB jmp A_21 ; 17/10/2020 1373 1374 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1375 ; write partition table (and MBR code) onto disk 1376 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1377 ; 18/10/2020 1378 1379 write_pt_mbr: 1380 ; 18/10/2020 (fdisk3.s) 1381 ; 11/02/2019 (hdimage.s) 1382 ;xor al, al ; MBR/PRIMARY PARTITIONS 1383 000006C6 E81221 call display_partition_table ; 12/03/2021 1384 1385 000006C9 BE[A35C] mov si, msg_write_masterboot_sector 1386 000006CC E8B314 call print_msg 1387 1388 000006CF A2[966D] mov [GetChar], al ; 0 1389 1390 000006D2 BE[865D] mov si, option_input 1391 000006D5 E8AA14 call print_msg 1392 1393 000006D8 B403 mov ah, 3 1394 ;mov bx, 7 1395 000006DA CD10 int 10h ; Return Cursor Position 1396 ; DL = Column 1397 1398 000006DC FECA dec dl ; previous char ; ']' 1399 000006DE FECA dec dl ; previous char ; '[ ]' 1400 1401 000006E0 B402 mov ah, 2 1402 ;mov bx, 7 1403 000006E2 CD10 int 10h ; Set Cursor Position 1404 1405 ; write char at current cursor position 1406 1407 000006E4 B030 mov al, '0' ; Write default char 1408 1409 ;;mov bx, 07h 1410 000006E6 B409 mov ah, 09h 1411 000006E8 B90100 mov cx, 1 1412 000006EB CD10 int 10h 1413 1414 wptmbr_getchar: 1415 000006ED 30E4 xor ah, ah 1416 000006EF CD16 int 16h 1417 1418 000006F1 3C1B cmp al, 1Bh ; 27 1419 ;je wptmbr_esc ; 19/10/2020 1420 000006F3 0F8410FD je A_42 1421 1422 000006F7 3C0D cmp al, 0Dh ; 13 1423 000006F9 7414 je short wptmbr_1 1424 1425 000006FB 3C31 cmp al, '1' 1426 000006FD 72EE jb short wptmbr_getchar 1427 1428 000006FF 3C32 cmp al, '2' 1429 00000701 77EA ja short wptmbr_getchar 1430 1431 00000703 A2[966D] mov [GetChar], al 1432 1433 ;;mov bx, 07h 1434 00000706 B409 mov ah, 09h 1435 00000708 B90100 mov cx, 1 1436 0000070B CD10 int 10h 1437 0000070D EBDE jmp short wptmbr_getchar 1438 1439 wptmbr_1: 1440 0000070F 803E[966D]00 cmp byte [GetChar], 0 1441 00000714 76D7 jna short wptmbr_getchar 1442 1443 00000716 BE[545D] mov si, msg_writing_ptable 1444 00000719 E86614 call print_msg 1445 1446 0000071C 803E[966D]32 cmp byte [GetChar], '2' 1447 00000721 751F jne short wptmbr_2 ; Do not write Singlix MBR code 1448 1449 ; Write CHS parameters in Singlix (FS specific) MBR 1450 1451 00000723 BE[5B31] mov si, TRDOS386_MASTERBOOT_SECTOR 1452 00000726 B9DF00 mov cx, 446/2 ; Copy Singlix FS 1 MBR code 1453 ; except Partition Table 1454 00000729 BF[DA55] mov di, MasterBootBuff 1455 0000072C F3A5 rep movsw 1456 1457 ; This (Below) is not needed; because, if MBR magicword 1458 ; would not be 0AA55h, we would not be able to come here! 1459 ;;add di, 64 ; skip partition table 1460 ;;mov ax, 0AA55h 1461 ;;stosw 1462 ;mov word [MBIDCode], 0AA55h 1463 1464 ; 12/02/2019 1465 ; Copy CHS parameters to Singlix MBR (on disk) 1466 1467 0000072E BF[7E57] mov di, MasterBootBuff+420 1468 1469 00000731 A1[723F] mov ax, [cylinders] 1470 00000734 AB stosw ; cylinders 1471 00000735 A1[703F] mov ax, [heads] 1472 00000738 AB stosw ; heads 1473 00000739 A1[6E3F] mov ax, [sectors] 1474 0000073C AB stosw ; sectors 1475 1476 ; 13/03/2021 1477 ; copy 32 bit disk size (total LBA sectors) to MBR offset 426 1478 0000073D BE[DA68] mov si, disksize 1479 00000740 A5 movsw 1480 00000741 A5 movsw 1481 1482 wptmbr_2: 1483 ;xor ax, ax ; 0 1484 ;xor dx, dx ; 0 1485 ;; DX_AX = Masterboot Sector = 0 1486 ;mov bx, MasterBootBuff 1487 ;; ES:BX = Sector Buffer 1488 ;call write_hd_sector 1489 ;jc short print_error_code 1490 ; ! display error msg and then exit ! 1491 1492 00000742 C606[D968]05 mov byte [rcnt], 5 ; retry count 1493 1494 00000747 BB[DA55] mov bx, MasterBootBuff 1495 1496 0000074A B90100 mov cx, 1 ; cylinder = 0 1497 ; sector = 1 1498 0000074D B600 mov dh, 0 ; head = 0 1499 0000074F 8A16[D668] mov dl, [DrvNum] 1500 wptmbr_3: 1501 00000753 B80103 mov ax, 0301h ; write one sector 1502 00000756 CD13 int 13h 1503 00000758 730C jnc short wptmbr_4 1504 1505 0000075A FE0E[D968] dec byte [rcnt] 1506 0000075E 7431 jz short print_error_code 1507 1508 00000760 30E4 xor ah, ah 1509 ;mov dl, [DrvNum] 1510 00000762 CD13 int 13h ; BIOS Service func (ah) = 0 1511 ; Reset disk system 1512 00000764 EBED jmp short wptmbr_3 1513 1514 wptmbr_4: 1515 00000766 BE[7D5D] mov si, _msg_OK 1516 00000769 E81614 call print_msg 1517 1518 ; wait for 1 second 1519 0000076C B402 mov ah, 02h 1520 0000076E CD1A int 1Ah 1521 00000770 8836[966D] mov [GetChar], dh 1522 wptmbr_wait: 1523 00000774 B402 mov ah, 02h 1524 00000776 CD1A int 1Ah 1525 00000778 3A36[966D] cmp dh, [GetChar] 1526 0000077C 74F6 je short wptmbr_wait 1527 1528 0000077E BE[BB55] mov si, msg_press_any_key 1529 00000781 E8FE13 call print_msg 1530 1531 00000784 30E4 xor ah, ah ; "Press any key to continue" 1532 00000786 CD16 int 16h 1533 1534 00000788 BE[5F55] mov si, CRLF 1535 0000078B E8F413 call print_msg 1536 1537 ;jmp wptmbr_esc 1538 ; 19/10/2020 1539 0000078E E976FC jmp A_42 1540 1541 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1542 ; print error message and exit 1543 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1544 ; 18/10/2020 (fdisk3.s) 1545 1546 print_error_code: 1547 ; 25/02/2019 (hdimage.s) 1548 1549 00000791 88E0 mov al, ah ; error code 1550 00000793 E8C214 call bin_to_hex 1551 00000796 A3[6D55] mov [error_code], ax 1552 1553 00000799 BE[5F55] mov si, CRLF 1554 0000079C E8E313 call print_msg 1555 1556 0000079F BE[6255] mov si, Msg_Error 1557 000007A2 E8DD13 call print_msg 1558 1559 000007A5 CD20 int 20h ; Exit 1560 1561 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1562 ; exit, print_msg & exit 1563 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1564 ; 19/10/2020 1565 1566 _crlf_exit: 1567 000007A7 BE[5F55] mov si, CRLF 1568 _p_exit: 1569 ; 11/10/2020 1570 000007AA E8D513 call print_msg 1571 _exit: 1572 000007AD B8004C mov ax, 4C00h ; terminate 1573 000007B0 CD21 int 21h 1574 1575 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1576 ; display create partition menu & get partition type input 1577 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1578 ; 19/10/2020 1579 1580 create_partition_input: 1581 ; 15/02/2019 1582 ; clear screen 1583 000007B2 B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 1584 000007B5 CD10 int 10h 1585 1586 000007B7 BE[5945] mov si, msg_create_partition_h ; header 1587 000007BA E8C513 call print_msg 1588 000007BD BE[4E46] mov si, msg_create_partition_m ; menu 1589 000007C0 E8BF13 call print_msg 1590 cpi_1: 1591 000007C3 30E4 xor ah, ah 1592 000007C5 CD16 int 16h 1593 000007C7 3C1B cmp al, 27 ; ESC key 1594 000007C9 7445 je short cpi_4 ; 25/02/2019 1595 000007CB 3C30 cmp al, '0' 1596 000007CD 7441 je short cpi_4 ; 25/02/2019 1597 000007CF 72F2 jb short cpi_1 1598 000007D1 3C34 cmp al, '4' 1599 000007D3 77EE ja short cpi_1 1600 1601 000007D5 30E4 xor ah, ah 1602 000007D7 2C30 sub al, '0' 1603 1604 ;mov [pp_type], al 1605 1606 ;mov byte [pp_type_user], 0 1607 1608 000007D9 3C01 cmp al, 1 ; DOS partition 1609 000007DB 7536 jne short cpi_5 ; ah = 0 1610 ; (al = 2 -> singlix, al = 3 -> retro unix) 1611 cpi_2: 1612 ; clear screen 1613 000007DD B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 1614 000007E0 CD10 int 10h 1615 1616 000007E2 BE[0448] mov si, msg_create_dos_partition_h ; header 1617 000007E5 E89A13 call print_msg 1618 000007E8 BE[D84B] mov si, msg_create_dos_partition_m ; menu 1619 000007EB E89413 call print_msg 1620 cpi_3: 1621 000007EE 30E4 xor ah, ah 1622 000007F0 CD16 int 16h 1623 000007F2 3C1B cmp al, 27 ; ESC key 1624 000007F4 741A je short cpi_4 1625 000007F6 3C30 cmp al, '0' 1626 000007F8 7416 je short cpi_4 1627 000007FA 72F2 jb short cpi_3 1628 000007FC 3C33 cmp al, '3' 1629 000007FE 77EE ja short cpi_3 1630 1631 00000800 30E4 xor ah, ah 1632 00000802 2C30 sub al, '0' 1633 00000804 3C01 cmp al, 1 1634 00000806 7424 je short cpi_6 ; ah = 0 (al = primary dos partition) 1635 1636 ;mov byte [pp_type], 5 1637 1638 00000808 3C02 cmp al, 2 1639 0000080A 7621 jna short cpi_7 1640 1641 0000080C B80600 mov ax, 6 ; ah = 0 (al = logical dos drive/partition) 1642 0000080F C3 retn 1643 1644 cpi_4: 1645 00000810 31C0 xor ax, ax ; ah = 0 (al = 0 -> ESCape/Cancel) 1646 00000812 C3 retn 1647 cpi_5: 1648 00000813 3C04 cmp al, 4 ; option num. for partition type (user) input 1649 00000815 7515 jne short cpi_6 1650 1651 00000817 E81318 call partition_type_input 1652 1653 ; 29/10/2020 1654 0000081A 08C0 or al, al 1655 ;jz short cpi_6 ; invalid (zero) input or ESC key 1656 0000081C 74F2 jz short cpi_4 1657 1658 0000081E B404 mov ah, 4 ; user/another type partition flag 1659 ; al = Partition ID 1660 00000820 50 push ax 1661 00000821 BE[BB55] mov si, msg_press_any_key 1662 00000824 E85B13 call print_msg 1663 00000827 28E4 sub ah, ah 1664 00000829 CD16 int 16h 1665 0000082B 58 pop ax 1666 cpi_6: 1667 0000082C C3 retn 1668 cpi_7: 1669 0000082D B80500 mov ax, 5 ; ah = 0 (al = extended dos partition) 1670 00000830 C3 retn 1671 1672 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1673 ; create primary (dos or non-dos) partition 1674 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1675 ; 19/10/2020 1676 ; (This procedure must be called after 'find_part_free_space') 1677 1678 create_primary_partition: 1679 ; 16/02/2019 1680 1681 ; INPUT: 1682 ; none 1683 ; (CHS parameters and free space calculation result will be used.) 1684 ; 1685 ; OUTPUT: 1686 ; Partition table in MBR buffer will be updated. 1687 ; 1688 ; (Modified registers: ax, bx, cx, dx, si, di) 1689 1690 ; Create primary dos or non-dos partition, 1691 ; make partition table entry 1692 1693 ; 19/10/2020 1694 00000831 803E[6070]00 cmp byte [pcount], 0 ; count of (valid) partitions 1695 00000836 770A ja short cpp_0 1696 1697 ; cylinder = 0, head = 1, sector = 1 1698 ; LBA = (((cylinder*heads)+head)*sectors)+sector-1 1699 1700 00000838 BE[9857] mov si, MasterBootBuff+pTableOffset 1701 1702 0000083B A1[6E3F] mov ax, [sectors] ; LBA = 17 or 63 1703 0000083E 31D2 xor dx, dx 1704 00000840 EB56 jmp short cpp_4 1705 cpp_0: 1706 ; 16/02/2019 1707 00000842 E8571F call get_first_free_pte 1708 ; CX = First free PTE number, 0 to 3 1709 ; (CX = 3 if there is not a free PTE, and CF = 1) 1710 ; ((But CF = 1 is not possible here because pcount < 4)) 1711 ; SI = PTE address/offset in MBR buffer 1712 1713 ;mov si, MasterBootBuff+pTableOffset 1714 ;shl cl, 4 ; * 16 1715 ;add si, cx 1716 1717 ; 18/02/2019 1718 00000845 8B3E[FE70] mov di, [c_fspc_offset] 1719 00000849 8B9D[AE70] mov bx, [di+free_space.start] 1720 0000084D A0[703F] mov al, [heads] 1721 00000850 F626[6E3F] mul byte [sectors] 1722 00000854 F7E3 mul bx 1723 ; DX:AX = LBA of start cylinder, head 0, sector 1 1724 1725 00000856 8A0E[0071] mov cl, [cylinder_boundary] 1726 1727 ;cmp cl, 0 ; Default (partition size unit is one of C, G, M) 1728 ; boundary alignment is forced as default 1729 ;je short cpp_4 1730 1731 ; 20/02/2019 1732 ;and cl, cl 1733 ;jz short cpp_1 1734 1735 0000085A 80F959 cmp cl, 'Y' 1736 0000085D 7439 je short cpp_4 ; cylinder boundary option (answer) = YES 1737 1738 0000085F 80F94E cmp cl, 'N' 1739 00000862 750A jne short cpp_1 ; cylinder boundary option (answer) = YES/NO 1740 1741 ; cylinder boundary option (answer) = NO 1742 00000864 8B85[B870] mov ax, [di+free_space.startsector] 1743 00000868 8B95[BA70] mov dx, [di+free_space.startsector+2] 1744 0000086C EB2A jmp short cpp_4 1745 cpp_1: 1746 ;cmp cl, 27 ; ESCape 1747 ;jne short cpp_4 ; 'Y' 1748 1749 ; check cylinder boundary alignment of the start sector 1750 1751 ; if start sector is not aligned, end sector must not be aligned 1752 ; (this rule is valid for ESCape key from the user) 1753 1754 0000086E C606[0071]59 mov byte [cylinder_boundary], 'Y' ; YES for end sector check 1755 1756 00000873 8B8D[B870] mov cx, [di+free_space.startsector] 1757 1758 00000877 09DB or bx, bx 1759 1760 00000879 8B9D[BA70] mov bx, [di+free_space.startsector+2] 1761 1762 0000087D 7508 jnz short cpp_2 ; start cylinder > 0 1763 1764 ;and bx, bx 1765 ;jnz short cpp_3 1766 1767 0000087F 3B0E[6E3F] cmp cx, [sectors] 1768 00000883 7413 je short cpp_4 ; start sector is as aligned 1769 00000885 EB08 jmp short cpp_3 1770 cpp_2: 1771 00000887 39C8 cmp ax, cx 1772 00000889 7504 jne short cpp_3 1773 0000088B 39DA cmp dx, bx 1774 0000088D 7409 je short cpp_4 1775 cpp_3: 1776 0000088F 89C8 mov ax, cx 1777 00000891 89DA mov dx, bx 1778 00000893 C606[0071]4E mov byte [cylinder_boundary], 'N' 1779 cpp_4: 1780 00000898 894408 mov [si+ptStartSector], ax 1781 0000089B 89540A mov [si+ptStartSector+2], dx 1782 1783 ; save start sector (for partition formatting procedure) 1784 0000089E A3[6C6D] mov [pp_StartSector], ax 1785 000008A1 8916[6E6D] mov [pp_StartSector+2], dx 1786 1787 ; 14/03/2021 1788 000008A5 8B0E[9E6D] mov cx, [ppn_Sectors] 1789 000008A9 8B1E[A06D] mov bx, [ppn_Sectors+2] 1790 1791 ; 19/10/2020 1792 000008AD 803E[6070]00 cmp byte [pcount], 0 1793 000008B2 775E ja short cpp_5 1794 1795 ;xor cx, cx 1796 ;mov [si+ptBeginCylinder], cx ; 0 1797 ;inc cl ; 1 1798 ;mov [si+ptBeginSector], cl ; 1 1799 ;mov [si+ptBeginHead], cl ; 1 1800 ; 14/03/2021 1801 000008B4 C744030000 mov word [si+ptBeginCylinder], 0 1802 000008B9 C6440201 mov byte [si+ptBeginSector], 1 1803 000008BD C6440101 mov byte [si+ptBeginHead], 1 1804 1805 ; set active partition flag 1806 ;mov byte [si+ptBootable], 80h ; bootable/active partition 1807 000008C1 C60480 mov byte [si], 80h ; bootable/active partition 1808 1809 ; 14/03/2021 1810 ; 18/02/2019 1811 ;mov cx, [ppn_Sectors] 1812 ;mov bx, [ppn_Sectors+2] 1813 1814 000008C4 803E[746D]00 cmp byte [wholedisk], 0 1815 000008C9 0F865401 jna cpp_12 1816 1817 ; 26/10/2020 1818 000008CD 01C8 add ax, cx 1819 000008CF 11DA adc dx, bx 1820 000008D1 83E801 sub ax, 1 1821 000008D4 83DA00 sbb dx, 0 1822 1823 ; 24/10/2020 1824 000008D7 3B16[E068] cmp dx, [chs_limit+2] 1825 000008DB 7217 jb short cpp_17 1826 000008DD 7706 ja short cpp_16 1827 000008DF 3B06[DE68] cmp ax, [chs_limit] 1828 000008E3 760F jna short cpp_17 1829 cpp_16: 1830 000008E5 C64405FE mov byte [si+ptEndHead], 0FEh 1831 000008E9 C64406FF mov byte [si+ptEndSector], 0FFh 1832 000008ED C64407FF mov byte [si+ptEndCylinder], 0FFh 1833 000008F1 E9C801 jmp cpp_15 1834 cpp_17: 1835 000008F4 A0[703F] mov al, [heads] 1836 000008F7 FEC8 dec al 1837 000008F9 884405 mov [si+ptEndHead], al 1838 000008FC A0[6E3F] mov al, [sectors] 1839 000008FF 884406 mov [si+ptEndSector], al 1840 00000902 A1[723F] mov ax, [cylinders] 1841 00000905 48 dec ax 1842 00000906 884407 mov [si+ptEndCylinder], al 1843 00000909 C0E406 shl ah, 6 1844 0000090C 086406 or [si+ptEndSector], ah 1845 1846 ;jmp cpp_16 1847 0000090F E9AA01 jmp cpp_15 ; 06/03/2019 1848 cpp_5: 1849 ; 18/02/2019 1850 00000912 803E[0071]59 cmp byte [cylinder_boundary], 'Y' 1851 00000917 753D jne short cpp_7 1852 1853 00000919 30DB xor bl, bl ; head = 0 1854 1855 0000091B 8B8D[AE70] mov cx, [di+free_space.start] 1856 1857 ; 06/03/2019 1858 ;or ax, ax 1859 ;jnz short cpp_6 1860 1861 ;and cx, cx ; start cylinder = 0 ? 1862 ;jnz short cpp_6 1863 1864 0000091F 09C8 or ax, cx 1865 ;jnz short cpp_6 1866 00000921 740B jz short cpp_24 ; 31/10/2020 1867 1868 ; 31/10/2020 1869 00000923 A0[6E3F] mov al, [sectors] 1870 00000926 F626[703F] mul byte [heads] 1871 0000092A F7E1 mul cx 1872 ; dx:ax = LBA sector address 1873 ; bl = head = 0 1874 ; cx = cylinder number 1875 ; ax = sector number 1876 0000092C EB07 jmp short cpp_6 1877 cpp_24: 1878 0000092E A1[6E3F] mov ax, [sectors] 1879 ; cylinder 0, head 1, sector 1 (LBA = 17 or 63) 1880 00000931 FEC3 inc bl ; head = 1 1881 00000933 31D2 xor dx, dx ; 0 1882 cpp_6: 1883 ; 31/10/2020 1884 00000935 894408 mov [si+ptStartSector], ax 1885 00000938 89540A mov [si+ptStartSector+2], dx 1886 1887 0000093B A3[6C6D] mov [pp_StartSector], ax 1888 0000093E 8916[6E6D] mov [pp_StartSector+2], dx 1889 1890 00000942 09C9 or cx, cx ; start cylinder ? 1891 00000944 7508 jnz short cpp_25 ; > 0 1892 1893 ;and bl, bl ; head = 0 ? 1894 ;jz short cpp_25 1895 1896 ; cylinder = 0, head = 1, dx:ax = [sectors] 1897 1898 ;sub [pp_Sectors], ax 1899 ;sbb [pp_Sectors+2], cx ; 0 1900 1901 00000946 2906[9E6D] sub [ppn_Sectors], ax 1902 0000094A 190E[A06D] sbb [ppn_Sectors+2], cx ; 0 1903 cpp_25: 1904 0000094E 89C8 mov ax, cx 1905 ; 29/10/2020 1906 00000950 C6440201 mov byte [si+ptBeginSector], 1 ; sector = 1 1907 00000954 EB16 jmp short cpp_8 1908 cpp_7: 1909 ; 18/02/2019 1910 1911 ; [wholedisk] = 0 1912 1913 ; Fix partition size for MSDOS 3.3 (Retro DOS 3.0) compatibility. 1914 ; (DOS partition size will be changed -down- to 65535 sectors, 1915 ; if it is 65536 sectors.) 1916 1917 00000956 E87301 call fix_32mb_dos_psize 1918 ; bx:cx = [ppn_sectors] = partition size 1919 ; dx:ax = start sector's LBA 1920 1921 ;cylinder = LBA / (heads_per_cylinder * sectors_per_track) 1922 ;temp = LBA % (heads_per_cylinder * sectors_per_track) 1923 ;head = temp / sectors_per_track 1924 ;sector = temp % sectors_per_track + 1 1925 1926 ; Convert LBA sector address to CHS parameters 1927 00000959 8B0E[6E3F] mov cx, [sectors] 1928 0000095D E81D03 call div32 1929 ; BX = Sector number - 1 1930 00000960 FEC3 inc bl ; sector number (1 based) 1931 00000962 885C02 mov [si+ptBeginSector], bl 1932 ; DX_AX = cylinders * heads + head 1933 00000965 8B0E[703F] mov cx, [heads] 1934 00000969 E81103 call div32 1935 ; ax = cylinder 1936 ; bl = head 1937 cpp_8: 1938 ; 24/10/2020 1939 ;mov bh, 1 ; [si+ptBeginSector] 1940 0000096C 3DFF03 cmp ax, 1023 ; CHS limit 1941 0000096F 7609 jna short cpp_18 1942 ; > CHS limit 1943 00000971 B8FF03 mov ax, 1023 ; cylinder 1944 00000974 B3FE mov bl, 0FEh ; 254 (head) 1945 ;mov bh, 3Fh ; 63 (sector) 1946 ; 26/10/2020 1947 00000976 C644023F mov byte [si+ptBeginSector], 3Fh 1948 cpp_18: 1949 ; BL = Head number 1950 0000097A 885C01 mov [si+ptBeginHead], bl 1951 ; AX = Cylinder number 1952 ;and ax, 1023 1953 0000097D 884403 mov [si+ptBeginCylinder], al 1954 00000980 C0E406 shl ah, 6 1955 ; 24/10/2020 1956 ;or ah, bh ; bh = sector number 1957 ; 26/10/2020 1958 00000983 086402 or [si+ptBeginSector], ah 1959 ;mov [si+ptBeginSector], ah 1960 1961 ; clear active partition flag (for now) 1962 ;mov byte [si+ptBootable], 0 ; not bootable/active partition 1963 00000986 C60400 mov byte [si], 0 ; not bootable/active partition 1964 1965 ;mov di, [c_fspc_offset] 1966 1967 00000989 803E[0071]59 cmp byte [cylinder_boundary], 'Y' 1968 0000098E 0F858000 jne cpp_11 1969 1970 00000992 8A0E[703F] mov cl, [heads] 1971 00000996 A0[6E3F] mov al, [sectors] 1972 00000999 88C5 mov ch, al 1973 0000099B F6E1 mul cl 1974 ; ax = heads*sectors 1975 1976 0000099D 8B9D[B070] mov bx, [di+free_space.end] ; end cylinder of the partition 1977 1978 000009A1 803E[746D]00 cmp byte [wholedisk], 0 ; entire free space ? 1979 000009A6 7721 ja short cpp_10 1980 1981 000009A8 89C3 mov bx, ax 1982 000009AA A1[9E6D] mov ax, [ppn_Sectors] 1983 000009AD 8B16[A06D] mov dx, [ppn_Sectors+2] 1984 000009B1 0306[6C6D] add ax, [pp_StartSector] 1985 000009B5 1316[6E6D] adc dx, [pp_StartSector+2] 1986 000009B9 83E801 sub ax, 1 1987 000009BC 83DA00 sbb dx, 0 1988 ; dx:ax = end sector 1989 000009BF F7F3 div bx 1990 ; ax = cylinder number 1991 ; 31/10/2020 1992 ;and dx, dx 1993 ;jz short cpp_9 1994 ;inc ax ; + 1 (because of remainder > 0) 1995 cpp_9: 1996 000009C1 93 xchg ax, bx 1997 ; bx = end cylinder 1998 ; ax = heads*sectors 1999 ; free space limit check 2000 000009C2 3B9D[B070] cmp bx, [di+free_space.end] 2001 000009C6 7601 jna short cpp_10 ; ok 2002 ; end cylinder is out of free space 2003 000009C8 4B dec bx ; decrease end cylinder number 2004 cpp_10: 2005 000009C9 F7E3 mul bx 2006 ; dx:ax = (end cylinder)*heads*sectors 2007 000009CB 52 push dx ; ** 2008 000009CC 50 push ax ; * 2009 2010 ; 24/10/2020 2011 000009CD 81FBFF03 cmp bx, 1023 ; CHS limit 2012 000009D1 7606 jna short cpp_19 2013 ; > CHS limit 2014 000009D3 BBFF03 mov bx, 1023 ; cylinder 2015 ;mov cl, 0FFh ; 255 (head+1) 2016 ;mov ch, 3Fh ; 63 (sector) 2017 000009D6 B9FF3F mov cx, 3FFFh 2018 cpp_19: 2019 000009D9 FEC9 dec cl ; heads - 1 = end head 2020 2021 000009DB 884C05 mov [si+ptEndHead], cl 2022 ; 26/10/2020 2023 ;mov al, [sectors] 2024 ; 31/10/2020 2025 000009DE 88E8 mov al, ch 2026 000009E0 885C07 mov [si+ptEndCylinder], bl 2027 ;mov bl, al 2028 ;shl bh, 6 ; shift high bytes (2 bits) of end cyl num 2029 ; ; to 6 bits left 2030 ;or bh, bl ; combine high bits of end cyl num and end sector 2031 000009E3 C0E706 shl bh, 6 2032 000009E6 08EF or bh, ch ; ch = end sector (= sectors) 2033 000009E8 887C06 mov [si+ptEndSector], bh 2034 2035 ; 24/10/2020 2036 ;mov bl, [sectors] 2037 ;xor bh, bh ; clear bh 2038 000009EB 8B1E[6E3F] mov bx, [sectors] ; 17 or 63 2039 2040 000009EF FECB dec bl ; sectors - 1 ; 22/02/2019 2041 000009F1 F6E1 mul cl ; sectors * [end head] 2042 000009F3 5A pop dx ; * 2043 ; 22/02/2019 2044 000009F4 31C9 xor cx, cx 2045 000009F6 01D0 add ax, dx 2046 000009F8 5A pop dx ; ** 2047 000009F9 11CA adc dx, cx ; 0 2048 000009FB 01D8 add ax, bx 2049 000009FD 11CA adc dx, cx ; 0 2050 ; dx:ax = ((([end cylinder]*heads)+[end head])*sectors)+sectors-1 2051 2052 ; calculate aligned partition size in sectors 2053 000009FF 89C1 mov cx, ax 2054 00000A01 89D3 mov bx, dx 2055 00000A03 83C101 add cx, 1 2056 00000A06 83D300 adc bx, 0 2057 00000A09 2B4C08 sub cx, [si+ptStartSector] 2058 00000A0C 1B5C0A sbb bx, [si+ptStartSector+2] 2059 ; bx:cx = partition size 2060 ;mov [ppn_Sectors], cx 2061 ;mov [ppn_Sectors+2], bx 2062 ;jmp cpp_16 2063 00000A0F E9AA00 jmp cpp_15 ; 06/03/2019 2064 cpp_11: 2065 ; 20/02/2019 2066 00000A12 8B0E[9E6D] mov cx, [ppn_Sectors] 2067 00000A16 8B1E[A06D] mov bx, [ppn_Sectors+2] 2068 2069 ;;mov ax, [di+free_space.startsector] 2070 ;;mov ax, [di+free_space.startsector+2] 2071 ;mov ax, [si+ptStartSector] 2072 ;mov dx, [si+ptStartSector+2] 2073 00000A1A A1[6C6D] mov ax, [pp_StartSector] 2074 00000A1D 8B16[6E6D] mov dx, [pp_StartSector+2] 2075 cpp_12: 2076 ; 18/02/2019 2077 2078 ; [wholedisk] = 0 2079 2080 ; Fix partition size for MSDOS 3.3 (Retro DOS 3.0) compatibility. 2081 ; (DOS partition size will be changed -down- to 65535 sectors, 2082 ; if it is 65536 sectors.) 2083 2084 00000A21 E8A800 call fix_32mb_dos_psize 2085 ; bx:cx = [ppn_sectors] = partition size 2086 ; dx:ax = start sector's LBA 2087 2088 00000A24 01C8 add ax, cx 2089 00000A26 11DA adc dx, bx 2090 2091 ; Convert LBA sector address to CHS parameters 2092 00000A28 83E801 sub ax, 1 ; locate on to end sector of the partition 2093 00000A2B 83DA00 sbb dx, 0 2094 2095 ; 06/03/2019 2096 00000A2E 803E[0071]59 cmp byte [cylinder_boundary],'Y' 2097 ;jne short cpp_15 2098 00000A33 754D jne short cpp_14 2099 2100 00000A35 89C1 mov cx, ax 2101 00000A37 A0[703F] mov al, [heads] 2102 00000A3A F626[6E3F] mul byte [sectors] 2103 00000A3E 89C7 mov di, ax ; [heads]*[sectors] 2104 00000A40 91 xchg ax, cx 2105 ; cx = heads*spt 2106 2107 00000A41 E83902 call div32 2108 ; dx = 0 2109 ; ax = end cylinder 2110 ; bx = remainder 2111 ;and bx, bx 2112 ;jz short cpp_13 2113 ;inc ax 2114 ;cpp_13: 2115 ;cmp ax, [cylinders] 2116 ;jb short cpp_14 2117 ;dec ax 2118 ;cpp_14: 2119 2120 ; 26/10/2020 2121 00000A44 3DFF03 cmp ax, 1023 2122 00000A47 760E jna short cpp_20 2123 2124 00000A49 C64405FE mov byte [si+ptEndHead], 0FEh 2125 00000A4D C64406FF mov byte [si+ptEndSector], 0FFh 2126 00000A51 C64407FF mov byte [si+ptEndCylinder], 0FFh 2127 00000A55 EB1A jmp short cpp_21 2128 cpp_20: 2129 00000A57 8B1E[703F] mov bx, [heads] 2130 00000A5B FECB dec bl 2131 00000A5D 885C05 mov [si+ptEndHead], bl 2132 00000A60 8B0E[6E3F] mov cx, [sectors] 2133 00000A64 88E2 mov dl, ah 2134 00000A66 C0E206 shl dl, 6 2135 00000A69 08CA or dl, cl 2136 00000A6B 885406 mov [si+ptEndSector], dl 2137 00000A6E 884407 mov [si+ptEndCylinder], al 2138 ;mul di ; [cylinders]*[heads]*[sectors] 2139 ;;sub di, cx ; ([heads] - 1) * [sectors] 2140 ;add ax, di 2141 ;adc dx, 0 2142 ;;add ax, cx 2143 ;;adc dx, 0 2144 cpp_21: 2145 00000A71 40 inc ax 2146 00000A72 F7E7 mul di ; result = start LBA of next cylinder 2147 ; dx:ax = end sector LBA + 1 (as cyl. boundary aligned) 2148 00000A74 2B06[6C6D] sub ax, [pp_StartSector] 2149 00000A78 1B16[6E6D] sbb dx, [pp_StartSector+2] 2150 2151 00000A7C 89C1 mov cx, ax 2152 00000A7E 89D3 mov bx, dx 2153 ;jmp short cpp_16 2154 00000A80 EB3A jmp short cpp_15 2155 ;cpp_15: 2156 cpp_14: 2157 00000A82 8B0E[6E3F] mov cx, [sectors] 2158 00000A86 E8F401 call div32 2159 ; BX = Sector number - 1 2160 00000A89 FEC3 inc bl ; sector number (1 based) 2161 00000A8B 885C06 mov [si+ptEndSector], bl 2162 ; DX_AX = cylinders * heads + head 2163 00000A8E 8B0E[703F] mov cx, [heads] 2164 00000A92 E8E801 call div32 2165 ; BX = Head number 2166 00000A95 885C05 mov [si+ptEndHead], bl 2167 ; AX = Cylinder number 2168 ;and ax, 1023 2169 2170 ; 26/10/2020 2171 00000A98 3DFF03 cmp ax, 1023 2172 00000A9B 760E jna short cpp_22 2173 2174 00000A9D C64405FE mov byte [si+ptEndHead], 0FEh 2175 00000AA1 C64406FF mov byte [si+ptEndSector], 0FFh 2176 00000AA5 C64407FF mov byte [si+ptEndCylinder], 0FFh 2177 00000AA9 EB09 jmp short cpp_23 2178 cpp_22: 2179 00000AAB 884407 mov [si+ptEndCylinder], al 2180 ; 18/02/2019 2181 00000AAE C0E406 shl ah, 6 2182 00000AB1 086406 or [si+ptEndSector], ah 2183 cpp_23: 2184 00000AB4 8B0E[9E6D] mov cx, [ppn_Sectors] 2185 00000AB8 8B1E[A06D] mov bx, [ppn_Sectors+2] 2186 ;cpp_16: 2187 cpp_15: 2188 00000ABC 894C0C mov [si+ptSectors], cx 2189 00000ABF 895C0E mov [si+ptSectors+2], bx 2190 2191 ; set partition ID after checking DOS FAT limits 2192 00000AC2 E8EF00 call set_partition_id 2193 ; al = partition ID 2194 2195 00000AC5 A2[756D] mov [pp_type], al 2196 2197 00000AC8 884404 mov [si+ptFileSystemID], al 2198 2199 00000ACB C3 retn 2200 2201 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2202 ; decrease DOS partition size when it is (exact) 65536 sectors 2203 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2204 ; 18/02/2019 2205 2206 fix_32mb_dos_psize: ; call this if [wholedisk] = 0 2207 2208 ; Purpose: 2209 ; If a DOS partition's size is 65536 sectors 2210 ; MSDOS 3.3 can not use it. (FAT 16 partition ID = 06h) 2211 ; Decreasing partition size to 65535 sectors will ensure 2212 ; MSDOS 3.3 compatibility (FAT 16 partition ID will be 04h). 2213 2214 ; INPUT: 2215 ; BX:CX = partition size in sectors 2216 ; [pp_type] = partition type dos, non-dos, user input 2217 ; 2218 ; OUTPUT: 2219 ; Partition size will be changed to 65535 sectors, if 2220 ; - partition size is 65536 sectors and 2221 ; - [pp_type] is 1 (DOS) 2222 ; 2223 ; [ppn_Sectors] = 65535 (if it will be changed) 2224 ; 2225 ; (Modified registers: cx, bx) 2226 2227 ;mov cx, [ppn_Sectors] 2228 ;mov bx, [ppn_Sectors+2] 2229 2230 00000ACC 803E[756D]01 cmp byte [pp_type], 1 ; DOS partition 2231 00000AD1 7513 jne short psfx_0 ; non-dos partition or user input 2232 ; nothing to do ! 2233 00000AD3 09C9 or cx, cx 2234 00000AD5 750F jnz short psfx_0 ; <> 65536 sectors 2235 00000AD7 83FB01 cmp bx, 1 2236 00000ADA 750A jne short psfx_0 2237 00000ADC 4B dec bx 2238 ;mov [wholedisk], bx ; 0 2239 00000ADD 49 dec cx ; bx:cx = 65535 2240 00000ADE 890E[9E6D] mov [ppn_Sectors], cx 2241 00000AE2 891E[A06D] mov [ppn_Sectors+2], bx 2242 psfx_0: 2243 00000AE6 C3 retn 2244 2245 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2246 ; create extended dos partition 2247 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2248 ; 24/10/2020 (fdisk3.s) 2249 2250 ; 16/02/2019 (hdimage.s) 2251 ; (This procedure must be called after 'find_part_free_space') 2252 2253 create_extended_partition: 2254 ; 15/02/2019 2255 2256 ; INPUT: 2257 ; none 2258 ; (CHS parameters and free space calculation result will be used.) 2259 ; 2260 ; OUTPUT: 2261 ; Partition table in MBR buffer will be updated. 2262 ; 2263 ; (Modified registers: ax, bx, cx, dx, si, di) 2264 2265 ; Create extended dos partition, make partition table entry 2266 ; (Extended partition will be created on cylinder bounds.) 2267 2268 ; 16/02/2019 2269 00000AE7 E8B21C call get_first_free_pte 2270 ; CX = First free PTE number, 0 to 3 2271 ; (CX = 3 if there is not a free PTE, and CF = 1) 2272 ; ((But CF = 1 is not possible here because pcount < 4)) 2273 ; SI = PTE addres/offset in MBR buffer 2274 2275 ;mov si, MasterBootBuff+pTableOffset 2276 ;shl cl, 4 ; * 16 2277 ;add si, cx 2278 2279 00000AEA 8B1E[FE70] mov bx, [c_fspc_offset] 2280 2281 00000AEE 8B87[AE70] mov ax, [bx+free_space.start] 2282 2283 ; 24/10/2020 2284 00000AF2 89C7 mov di, ax 2285 ;mov cx, 1 2286 00000AF4 B101 mov cl, 1 ; head (ch) = 0, sector (cl) = 1 2287 2288 00000AF6 3DFF03 cmp ax, 1023 2289 00000AF9 7606 jna short cep_4 2290 2291 ; partition start > CHS limit 2292 00000AFB B8FF03 mov ax, 1023 2293 ;mov ch, 254 2294 ;mov cl, 63 2295 00000AFE B93FFE mov cx, 0FE3Fh 2296 cep_4: 2297 ;mov byte [si+ptBootable], 0 ; not bootable/active partition 2298 ;mov [si], ch ; 0 ; not bootable/active partition 2299 ; 26/10/2020 2300 00000B01 C60400 mov byte [si], 0 2301 00000B04 886C01 mov [si+ptBeginHead], ch 2302 00000B07 C0E406 shl ah, 6 2303 00000B0A 08E1 or cl, ah 2304 00000B0C 884C02 mov [si+ptBeginSector], cl ; Sector 1 2305 00000B0F 884403 mov [si+ptBeginCylinder], al 2306 2307 00000B12 A0[703F] mov al, [heads] 2308 00000B15 F626[6E3F] mul byte [sectors] 2309 ; ax = heads*sectors 2310 00000B19 F7E7 mul di ; AX * cylinder count before start cylinder 2311 ; DX:AX = LBA of cylinder DI, head 0, sector 1 2312 2313 00000B1B 894408 mov [si+ptStartSector], ax 2314 00000B1E 89540A mov [si+ptStartSector+2], dx 2315 2316 ; This is not needed for extended partition. 2317 ; 16/02/2019 2318 ;mov [pp_StartSector], ax 2319 ;mov [pp_StartSector+2], dx 2320 2321 ; 16/02/2019 2322 00000B21 803E[746D]00 cmp byte [wholedisk], 0 2323 00000B26 772A ja short cep_2 ; all of free space will be used 2324 ; ([bx+free_space.end] will be end cyl) 2325 2326 ; calculate cylinder count (from partition size input) 2327 00000B28 A0[703F] mov al, [heads] 2328 00000B2B F626[6E3F] mul byte [sectors] 2329 00000B2F 89C1 mov cx, ax 2330 00000B31 A1[9E6D] mov ax, [ppn_Sectors] 2331 00000B34 8B16[A06D] mov dx, [ppn_Sectors+2] 2332 00000B38 E84201 call div32 2333 ; ax = cylinders 2334 ; bx = remainder 2335 00000B3B 21DB and bx, bx 2336 00000B3D 7401 jz short cep_1 2337 2338 00000B3F 40 inc ax ; round up 2339 cep_1: 2340 ; 16/02/2019 2341 ; DI = extended partition's start cylinder 2342 00000B40 89C2 mov dx, ax ; cylinder count 2343 00000B42 01FA add dx, di ; result is end cyl + 1 2344 00000B44 4A dec dx ; decrease number for current end cylinder 2345 00000B45 8B1E[FE70] mov bx, [c_fspc_offset] 2346 00000B49 3B97[B070] cmp dx, [bx+free_space.end] 2347 00000B4D 7607 jna short cep_3 2348 ; 24/10/2020 2349 ;dec ax ; decrease cylinder count down to the limit 2350 00000B4F 4A dec dx ; decrease end cylinder down to the limit 2351 00000B50 EB04 jmp short cep_3 2352 cep_2: 2353 00000B52 8B97[B070] mov dx, [bx+free_space.end] 2354 ;mov ax, [bx+free_space.space] 2355 cep_3: 2356 ; 24/10/2020 2357 00000B56 89D0 mov ax, dx ; end cylinder 2358 00000B58 B305 mov bl, 05h ; Extended Partition ID (CHS) 2359 00000B5A 3DFF03 cmp ax, 1023 2360 00000B5D 760A jna short cep_5 2361 2362 ; partition end > CHS limit 2363 00000B5F B8FF03 mov ax, 1023 2364 ;mov ch, 254 2365 ;mov cl, 63 2366 00000B62 B93FFE mov cx, 0FE3Fh 2367 00000B65 B30F mov bl, 0Fh ; Extended Partition ID (LBA) 2368 00000B67 EB0A jmp short cep_6 2369 cep_5: 2370 00000B69 8A2E[703F] mov ch, [heads] 2371 00000B6D FECD dec ch 2372 00000B6F 8A0E[6E3F] mov cl, [sectors] 2373 cep_6: 2374 00000B73 886C05 mov [si+ptEndHead], ch 2375 ; 24/10/2020 2376 ; ax = (chs limit compatible) end cylinder (<= 1023) 2377 ; 23/02/2019 2378 ;mov bl, dh 2379 ;shl bl, 6 2380 ;or bl, cl 2381 00000B76 C0E406 shl ah, 6 2382 00000B79 08E1 or cl, ah 2383 ;mov [si+ptEndSector], bl 2384 00000B7B 884C06 mov [si+ptEndSector], cl 2385 ;mov [si+ptEndCylinder], dl 2386 00000B7E 884407 mov [si+ptEndCylinder], al 2387 ; dx = (lba compatible) end cylinder (up to 65535) 2388 2389 ;mov al, [heads] 2390 ; 26/10/2020 2391 ;;mul cl 2392 ;mul byte [sectors] 2393 00000B81 8A2E[703F] mov ch, [heads] 2394 00000B85 A0[6E3F] mov al, [sectors] 2395 00000B88 F6E5 mul ch 2396 ; ax = heads*sectors 2397 00000B8A F7E2 mul dx ; AX * cylinder count before end cylinder 2398 ; DX:AX = LBA of cylinder DX, head 0, sector 1 2399 00000B8C 52 push dx 2400 00000B8D 50 push ax 2401 00000B8E 88E8 mov al, ch 2402 00000B90 FEC8 dec al ; 26/10/2020 ; [heads] - 1 2403 00000B92 8B0E[6E3F] mov cx, [sectors] ; 63 or 17 2404 00000B96 F6E1 mul cl 2405 ; ax = (heads-1)*sectors 2406 00000B98 5A pop dx 2407 00000B99 01D0 add ax, dx 2408 00000B9B 5A pop dx 2409 00000B9C 83D200 adc dx, 0 2410 ; dx:ax = ((end cylinder)*heads)+(heads-1)*sectors 2411 00000B9F 01C8 add ax, cx 2412 00000BA1 83D200 adc dx, 0 2413 ; dx:ax = (((end cylinder)*heads)+(heads-1)*sectors) + sectors 2414 ; dx:ax = LBA of the partition's end sector + 1 2415 00000BA4 2B4408 sub ax, [si+ptStartSector] 2416 00000BA7 1B540A sbb dx, [si+ptStartSector+2] 2417 2418 00000BAA 89440C mov [si+ptSectors], ax 2419 00000BAD 89540E mov [si+ptSectors+2], dx 2420 2421 ;mov [pp_type], al 2422 2423 ;mov byte [si+ptFileSystemID], 5 2424 ; 24/10/2020 2425 00000BB0 885C04 mov [si+ptFileSystemID], bl ; 05h or 0Fh 2426 2427 00000BB3 C3 retn 2428 2429 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2430 ; set DOS (and non-dos) partition ID according to partition size 2431 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2432 ; 23/10/2020 2433 2434 set_partition_id: 2435 ; 23/10/2020 (fdisk3.s) 2436 ; input: 2437 ; si = partition table offset 2438 ; bx:cx = partition size 2439 2440 ; 18/02/2019 (hdimage.s) 2441 ;mov cx, [ppn_Sectors] 2442 ;mov bx, [ppn_Sectors+2] 2443 2444 00000BB4 A0[756D] mov al, [pp_type] 2445 2446 ;cmp byte [pp_type], 1 2447 00000BB7 3C01 cmp al, 1 ; primary DOS (FAT12, FAT16, FAT32) 2448 00000BB9 7519 jne short spid_2 ; singlix, runix or user type 2449 2450 ;mov al, 1 ; FAT12 2451 2452 00000BBB 09DB or bx, bx 2453 00000BBD 750A jnz short spid_1 2454 2455 00000BBF 81F9A87F cmp cx, 32680 2456 ;jna short spid_8 ; FAT12 file system 2457 00000BC3 761C jna short spid_19 ; 23/10/2020 2458 2459 00000BC5 B004 mov al, 4 ; FAT16 (< 32MB) 2460 2461 00000BC7 EB39 jmp short spid_8 ; FAT16 (CHS) file system 2462 2463 spid_1: 2464 00000BC9 B00B mov al, 0Bh ; FAT32 (CHS) 2465 2466 00000BCB 83FB10 cmp bx, 10h 2467 00000BCE 7332 jnb short spid_8 ; FAT32 (CHS) file system 2468 2469 00000BD0 B006 mov al, 6 ; FAT16 (>= 32MB) 2470 2471 00000BD2 EB2E jmp short spid_8 ; FAT16 big (CHS) file system 2472 2473 spid_2: 2474 ;cmp byte [pp_type], 2 ; Singlix FS 2475 00000BD4 3C02 cmp al, 2 2476 00000BD6 7503 jne short spid_3 2477 00000BD8 B0A1 mov al, 0A1h 2478 ;jmp short spid_8 2479 00000BDA C3 retn ; 23/10/2020 2480 spid_3: 2481 ;cmp byte [pp_type], 3 ; Retro Unix FS 2482 00000BDB 3C03 cmp al, 3 2483 00000BDD 7503 jne short spid_4 2484 00000BDF B071 mov al, 71h 2485 ;jmp short spid_8 2486 spid_19: 2487 00000BE1 C3 retn 2488 2489 spid_4: 2490 ; another partition type (user input) 2491 2492 ; [pp_type] = 4 2493 2494 00000BE2 A0[766D] mov al, [pp_type_user] 2495 2496 ; Check FAT12 fs size validation 2497 2498 00000BE5 3C01 cmp al, 1 ; FAT12 2499 00000BE7 7737 ja short spid_9 2500 2501 00000BE9 21DB and bx, bx 2502 00000BEB 750A jnz short spid_6 2503 2504 00000BED 81F9A87F cmp cx, 32680 2505 ;jna short spid_8 2506 00000BF1 76EE jna short spid_19 ; 23/10/2020 2507 spid_5: 2508 00000BF3 B004 mov al, 4 ; FAT16 (<= 32MB) 2509 00000BF5 EB0B jmp short spid_8 2510 spid_6: 2511 ;;cmp bx, 10h ; 512MB (16*32MB) 2512 ; 15/03/2021 2513 00000BF7 83FB40 cmp bx, 40h ; 2GB (64*32MB) 2514 00000BFA 7304 jnb short spid_7 2515 2516 00000BFC B006 mov al, 6 2517 00000BFE EB02 jmp short spid_8 2518 spid_7: 2519 00000C00 B00B mov al, 0Bh ; FAT32 (CHS) partition 2520 spid_8: 2521 ; 23/10/2020 2522 ; check the partition's end sector against CHS limit and 2523 ; convert partition ID if the partition overs CHS limit 2524 ;cmp al, 1 ; FAT12 fs 2525 ;je short spid_19 ; nothing to do (for FAT12 fs) 2526 00000C02 034C08 add cx, [si+ptStartSector] 2527 00000C05 135C0A adc bx, [si+ptStartSector+2] 2528 00000C08 3B1E[E068] cmp bx, [chs_limit+2] ; 07/11/2020 2529 00000C0C 72D3 jb short spid_19 ; partition's end sector is in CHS limit 2530 00000C0E 7706 ja short spid_17 ; out of CHS limit 2531 00000C10 3B0E[DE68] cmp cx, [chs_limit] 2532 00000C14 76CB jna short spid_19 ; partition's end sector is in CHS limit 2533 spid_17: 2534 ; out of CHS limit, partition ID conversion is needed 2535 00000C16 3C0B cmp al, 0Bh ; FAT32 CHS 2536 00000C18 7203 jb short spid_18 2537 00000C1A B00C mov al, 0Ch ; FAT 32 LBA 2538 00000C1C C3 retn 2539 spid_18: 2540 00000C1D B00E mov al, 0Eh ; FAT16 LBA 2541 00000C1F C3 retn 2542 spid_9: 2543 00000C20 3C04 cmp al, 4 ; FAT16 (< 32 MB) 2544 00000C22 750C jne short spid_10 2545 2546 00000C24 09DB or bx, bx 2547 00000C26 75CF jnz short spid_6 2548 2549 ; 15/03/2021 2550 00000C28 81F93610 cmp cx, 4150 ; 4085 + 32 + 32 + 1 2551 00000C2C 7217 jb short spid_12 2552 2553 ;retn ; FAT16 (< 32 MB) partition 2554 00000C2E EBD2 jmp short spid_8 ; 23/10/2020 2555 2556 spid_10: 2557 00000C30 3C06 cmp al, 6 ; FAT 16 big partition 2558 00000C32 7514 jne short spid_13 ; Extended partition or another type 2559 2560 00000C34 21DB and bx, bx 2561 00000C36 7407 jz short spid_11 2562 2563 ;cmp bx, 10h ; 512MB (16*32MB) 2564 ; 15/03/2021 2565 00000C38 83FB40 cmp bx, 40h ; 2GB (64*32MB) 2566 00000C3B 73C3 jnb short spid_7 2567 2568 ;retn 2569 00000C3D EBC3 jmp short spid_8 ; 23/10/2020 2570 2571 spid_11: 2572 ;cmp ax, 4150 ; 4085 + 32 + 32 + 1 2573 00000C3F 81F93610 cmp cx, 4150 ; 14/09/2020 (BugFix) 2574 00000C43 73AE jnb short spid_5 2575 spid_12: 2576 00000C45 B001 mov al, 1 ; FAT12 partition 2577 spid_16: 2578 00000C47 C3 retn 2579 spid_13: 2580 ; 14/09/2020 2581 00000C48 3C0B cmp al, 0Bh ; FAT 32 (CHS) partition 2582 00000C4A 7420 je short spid_15 ; FAT 32 CHS 2583 00000C4C 3C0C cmp al, 0Ch 2584 00000C4E 750C jne short spid_14 2585 ; FAT 32 LBA 2586 00000C50 21DB and bx, bx ; < 33 MB 2587 00000C52 74EB jz short spid_11 ; force to FAT 16 CHS or FAT 12 2588 00000C54 83FB10 cmp bx, 10h ; 512 MB 2589 ;jnb short spid_8 ; OK, FAT 32 LBA has been confirmed 2590 00000C57 73EE jnb short spid_16 ; 23/10/2020 2591 00000C59 B00E mov al, 0Eh ; force to FAT 16 LBA 2592 00000C5B C3 retn 2593 spid_14: 2594 ; 14/09/2020 2595 00000C5C 3C0E cmp al, 0Eh 2596 ;jne short spid_8 ; non-dos or extended partition 2597 00000C5E 75E7 jne short spid_16 ; 23/10/2020 2598 ; FAT 16 LBA 2599 00000C60 09DB or bx, bx 2600 00000C62 74DB jz short spid_11 2601 ; 23/10/2020 2602 00000C64 83FB20 cmp bx, 20h ; 1 GB 2603 00000C67 72DE jb short spid_16 2604 00000C69 B00C mov al, 0Ch ; FAT 32 LBA 2605 00000C6B C3 retn 2606 spid_15: 2607 ; Minimum size of FAT 32 FS = 65525 + 512 + 512 + 32 2608 ; >= 66581 sectors (or >= 65525 data clusters) 2609 00000C6C 83FB01 cmp bx, 1 2610 00000C6F 72CE jb short spid_11 ; invalid! (< 33 MB) 2611 00000C71 778F ja short spid_8 2612 00000C73 81F91504 cmp cx, 1045 2613 ;jb short spid_16 ; invalid! (< 33 MB) 2614 ;retn 2615 ;jmp short spid_8 ; 23/10/2020 2616 00000C77 7389 jnb short spid_8 2617 ;spid_16: 2618 00000C79 B006 mov al, 6 2619 ;retn 2620 00000C7B EB85 jmp short spid_8 ; 23/10/2020 2621 2622 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2623 ; 32 bit division by using 16 bit registers 2624 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2625 2626 div32: 2627 ; DX_AX/CX 2628 ; Result: DX_AX, BX (remainder) 2629 00000C7D 89C3 mov bx, ax 2630 ;or dx, ax ; * DX_AX = 0 ? 2631 ;jz short div32_retn ; yes, do not divide! 2632 00000C7F 89D0 mov ax, dx 2633 00000C81 31D2 xor dx, dx 2634 00000C83 F7F1 div cx ; at first, divide DX 2635 ; remainder is in DX 2636 00000C85 93 xchg ax, bx ; now quotient is in BX 2637 ; and initial AX value is in AX 2638 00000C86 F7F1 div cx ; now, DX_AX has been divided and 2639 ; AX has quotient 2640 ; DX has remainder 2641 00000C88 87D3 xchg dx, bx ; finally, BX has remainder 2642 ;div32_retn: 2643 00000C8A C3 retn 2644 2645 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2646 ; 32 bit multiplication by using 16 bit registers 2647 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2648 2649 mul32: 2650 ; DX_AX*CX 2651 ; Result: BX_DX_AX 2652 00000C8B 51 push cx 2653 00000C8C 89D3 mov bx, dx 2654 00000C8E F7E1 mul cx 2655 00000C90 93 xchg ax, bx 2656 00000C91 52 push dx 2657 00000C92 F7E1 mul cx 2658 00000C94 59 pop cx 2659 00000C95 01C8 add ax, cx 2660 00000C97 83D200 adc dx, 0 2661 00000C9A 93 xchg bx, ax 2662 00000C9B 87D3 xchg dx, bx 2663 00000C9D 59 pop cx 2664 00000C9E C3 retn 2665 2666 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2667 ; creeate new partition input menu 2668 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2669 2670 B_01: 2671 ; 06/03/2019 2672 00000C9F C606[826D]4D mov byte [pSize_unit], 'M' ; default (for 'whole' disk/space) 2673 ; 15/02/2019 2674 00000CA4 E80BFB call create_partition_input 2675 B_02: 2676 00000CA7 21C0 and ax, ax 2677 ;jz _crlf_exit ; 0 = none or not a valid input 2678 00000CA9 0F845AF7 jz A_42 ; 25/02/2019 2679 2680 ;or ah, ah 2681 ;jz short B_03 2682 2683 ; 23/02/2019 2684 00000CAD 80FC04 cmp ah, 4 ; user's partition type input ? 2685 00000CB0 7505 jne short B_03 ; no 2686 2687 ; 29/10/2020 2688 ; (ah = 0) 2689 ;or al, al 2690 ;jz A_42 ; invalid partition type input 2691 ; ; or ESC key has been pressed 2692 2693 ; user type input 2694 00000CB2 A2[766D] mov [pp_type_user], al 2695 00000CB5 88E0 mov al, ah ; mov al, 4 2696 B_03: 2697 00000CB7 A2[756D] mov [pp_type], al 2698 2699 ; clear screen 2700 00000CBA B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 2701 00000CBD CD10 int 10h 2702 2703 00000CBF A0[756D] mov al, [pp_type] 2704 00000CC2 3C01 cmp al, 1 2705 00000CC4 7705 ja short B_04 2706 2707 00000CC6 BE[0448] mov si, msg_create_dos_partition_h ; header 2708 00000CC9 EB70 jmp short B_09 2709 B_04: 2710 00000CCB 3C05 cmp al, 5 2711 00000CCD 7269 jb short B_08 2712 ;ja short B_07 2713 00000CCF 7741 ja short B_58 ; 26/10/2020 2714 2715 ; 23/02/2019 2716 00000CD1 BE[F948] mov si, msg_create_ext_partition_h 2717 00000CD4 E8AB0E call print_msg 2718 2719 ; 24/02/2019 2720 00000CD7 803E[6370]00 cmp byte [epnumber], 0 2721 00000CDC 7613 jna short B_05 2722 2723 00000CDE BE[715F] mov si, msg_ext_partition_exists 2724 00000CE1 E89E0E call print_msg 2725 2726 00000CE4 BE[BB55] mov si, msg_press_any_key 2727 00000CE7 E8980E call print_msg 2728 2729 00000CEA 30E4 xor ah, ah 2730 00000CEC CD16 int 16h 2731 2732 00000CEE E916F7 jmp A_42 2733 B_05: 2734 00000CF1 803E[6170]00 cmp byte [ppcount], 0 ; primary partition count 2735 00000CF6 7746 ja short B_10 2736 2737 ; 09/02/2019 2738 00000CF8 BE[804F] mov si, msg_ext_partition_error 2739 00000CFB E8840E call print_msg 2740 B_06: 2741 00000CFE BE[BB55] mov si, msg_press_any_key 2742 00000D01 E87E0E call print_msg 2743 2744 00000D04 30E4 xor ah, ah 2745 00000D06 CD16 int 16h 2746 2747 00000D08 C606[756D]01 mov byte [pp_type], 1 2748 2749 00000D0D E8CDFA call cpi_2 ; 15/02/2019 2750 00000D10 EB95 jmp short B_02 2751 2752 B_58: 2753 ; 26/10/2020 2754 00000D12 803E[D668]80 cmp byte [DrvNum], 80h ; hd0 ? 2755 00000D17 7707 ja short B_59 ; Do not check primary dos partition count 2756 ; The second hard disk may contain extended partition without 2757 ; a primary dos partition 2758 00000D19 803E[6170]00 cmp byte [ppcount], 0 ; primary dos partition count 2759 00000D1E 760A jna short B_07 2760 B_59: 2761 00000D20 803E[6370]00 cmp byte [epnumber], 0 2762 ; is there an extended partition ? 2763 00000D25 7603 jna short B_07 ; no 2764 00000D27 E9ACF7 jmp create_logical_drives 2765 B_07: 2766 00000D2A BE[EE49] mov si, msg_create_logical_drive_h 2767 00000D2D E8520E call print_msg 2768 2769 00000D30 BE[BF4F] mov si, msg_logical_drive_error 2770 00000D33 E84C0E call print_msg 2771 00000D36 EBC6 jmp short B_06 2772 2773 ; mov si, msg_use_entire_ep_space 2774 ; jmp short B_12 2775 2776 B_08: 2777 00000D38 BE[E34A] mov si, msg_create_nondos_partition_h 2778 B_09: 2779 00000D3B E8440E call print_msg 2780 B_10: 2781 ; 15/02/2019 2782 ;cmp byte [newdisk], 0 2783 ;ja short B_11 2784 2785 00000D3E 803E[6070]00 cmp byte [pcount], 0 ; (valid) partition count 2786 00000D43 7605 jna short B_11 2787 2788 00000D45 BE[184E] mov si, msg_use_all_space 2789 00000D48 EB03 jmp short B_12 2790 B_11: 2791 00000D4A BE[F14D] mov si, msg_use_whole_disk ; partition size: whole disk 2792 B_12: 2793 00000D4D E8320E call print_msg 2794 B_13: 2795 00000D50 30E4 xor ah, ah 2796 00000D52 CD16 int 16h 2797 2798 00000D54 3C1B cmp al, 27 ; ESCAPE key 2799 ;;je _crlf_exit 2800 00000D56 0F84ADF6 je A_42 ; 25/02/2019 2801 00000D5A 24DF and al, 0DFh 2802 00000D5C 3C4E cmp al, 'N' 2803 00000D5E 740D je short B_14 ;02/03/2019 2804 00000D60 3C59 cmp al, 'Y' 2805 00000D62 75EC jne short B_13 2806 2807 00000D64 FE06[746D] inc byte [wholedisk] 2808 2809 ; 02/03/2019 2810 00000D68 BE[985C] mov si, _msg_YES 2811 ;call print_msg 2812 00000D6B EB03 jmp short B_15 2813 B_14: 2814 00000D6D BE[9E5C] mov si, _msg_NO 2815 B_15: ; 06/03/2019 2816 00000D70 E80F0E call print_msg 2817 2818 ; 15/02/2019 2819 00000D73 29DB sub bx, bx 2820 ;cmp byte [newdisk], bl ; 0 2821 ;ja short B_16 ; 23/02/2019 2822 ; 19/10/2020 2823 ;cmp byte [pcount], 0 2824 ; 03/11/2020 2825 00000D75 381E[6070] cmp byte [pcount], bl ; 0 2826 00000D79 7608 jna short B_16 ; [pcount] = 0 (newdisk, empty pt) 2827 00000D7B 381E[746D] cmp byte [wholedisk], bl ; 0 2828 00000D7F 0F871C01 ja B_27 ; 23/02/2019 2829 B_16: 2830 ; 08/02/2019 2831 ;sub bx, bx 2832 00000D83 A1[DA68] mov ax, [total_sectors] 2833 00000D86 8B16[DC68] mov dx, [total_sectors+2] 2834 00000D8A 2B06[6E3F] sub ax, [sectors] 2835 00000D8E 19DA sbb dx, bx ; sbb dx, 0 2836 2837 00000D90 A3[706D] mov [pp_Sectors], ax ; = [total_sectors] - [sectors] 2838 00000D93 8916[726D] mov [pp_Sectors+2], dx ; = [total_sectors+2] - carry bit 2839 B_17: 2840 00000D97 381E[746D] cmp byte [wholedisk], bl ; 0 2841 00000D9B 0F870701 ja B_28 ; 09/02/2019 2842 B_18: 2843 ; clear screen 2844 00000D9F B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 2845 00000DA2 CD10 int 10h 2846 2847 ; 04/11/2020 2848 00000DA4 803E[756D]01 cmp byte [pp_type], 1 ; primary dos partition ? 2849 00000DA9 7405 je short B_61 2850 ; "Create Partition" 2851 00000DAB BE[5945] mov si, msg_create_partition_h 2852 00000DAE EB03 jmp short B_62 2853 B_61: 2854 ; "Create DOS partition" 2855 00000DB0 BE[0448] mov si, msg_create_dos_partition_h ; header 2856 B_62: 2857 00000DB3 E8CC0D call print_msg 2858 00000DB6 BE[954C] mov si, msg_create_trdos_partition_s ; size options 2859 00000DB9 E8C60D call print_msg 2860 B_19: 2861 00000DBC 30E4 xor ah, ah 2862 00000DBE CD16 int 16h 2863 2864 ; 24/02/2019 2865 00000DC0 3C1B cmp al, 27 ; ESCAPE key 2866 00000DC2 0F8441F6 je A_42 ; Cancel 2867 2868 00000DC6 3C20 cmp al, 32 ; SPACE key 2869 00000DC8 7521 jne short B_21 2870 2871 ; Entire space 2872 00000DCA A1[706D] mov ax, [pp_Sectors] 2873 00000DCD 8B16[726D] mov dx, [pp_Sectors+2] 2874 2875 00000DD1 C606[746D]01 mov byte [wholedisk], 1 ; 09/02/2019 2876 00000DD6 EB5A jmp short B_23 2877 2878 B_60: ; 31/10/2020 2879 00000DD8 75C5 jnz short B_18 ; ESCape (return to options menu) 2880 ; partition size input is ZERO ! 2881 B_20: 2882 ; ZERO partition size message 2883 00000DDA BE[AB5A] mov si, msg_zero_partition_size 2884 00000DDD E8A20D call print_msg 2885 2886 00000DE0 30E4 xor ah, ah 2887 00000DE2 CD16 int 16h 2888 00000DE4 3C1B cmp al, 27 ; ESCAPE key 2889 00000DE6 75B7 jne short B_18 ; Retry 2890 2891 ; 19/10/2020 2892 00000DE8 E9BCF9 jmp _crlf_exit ; exit 2893 2894 B_21: 2895 00000DEB C606[826D]25 mov byte [pSize_unit], '%' 2896 00000DF0 3C25 cmp al, '%' 2897 00000DF2 7422 je short B_22 2898 00000DF4 C606[826D]53 mov byte [pSize_unit], 'S' 2899 00000DF9 3C0D cmp al, 13 ; 0Dh, Carriage Return key 2900 00000DFB 7419 je short B_22 2901 00000DFD 24DF and al, 0DFh 2902 00000DFF 3C53 cmp al, 'S' 2903 00000E01 7413 je short B_22 2904 00000E03 A2[826D] mov [pSize_unit], al 2905 00000E06 3C4B cmp al, 'K' 2906 00000E08 740C je short B_22 2907 00000E0A 3C4D cmp al, 'M' 2908 00000E0C 7408 je short B_22 2909 00000E0E 3C47 cmp al, 'G' 2910 00000E10 7404 je short B_22 2911 00000E12 3C43 cmp al, 'C' 2912 00000E14 75A6 jne short B_19 2913 B_22: 2914 00000E16 C606[B764]73 mov byte [msg_sectors_crlf_s], 's' ; " sectors" 2915 2916 00000E1B E8D40F call partition_size_input 2917 ;jc _crlf_exit ; exit if partition size input is 0 2918 ;jc short B_20 2919 ; 29/10/2020 2920 ;jnc short B_60 2921 ;jz short B_20 ; partition size input is ZERO ! 2922 ;jmp short B_18 ; ESCape (return to options menu) 2923 ; 31/10/2020 2924 00000E1E 72B8 jc short B_60 ; ESC or zero partition size 2925 ;B_60: 2926 00000E20 21DB and bx, bx ; bx_dx_ax = partition size 2927 ;jnz short B_29 2928 ; 23/02/2019 2929 00000E22 7540 jnz short B_24 ; invalid! (use maximum available sectors) 2930 2931 ; 08/02/2019 2932 00000E24 09D2 or dx, dx 2933 00000E26 750A jnz short B_23 ; proper size (for now) 2934 2935 00000E28 8B1E[986D] mov bx, [min_sectors] ; minimum sectors 2936 00000E2C 39C3 cmp bx, ax 2937 00000E2E 7602 jna short B_23 ; proper size (for now) 2938 2939 ; invalid! (use minimum sectors or sectors per cylinder) 2940 00000E30 89D8 mov ax, bx 2941 B_23: 2942 ; 09/02/2019 2943 ; save dx,ax 2944 00000E32 8916[A06D] mov [ppn_Sectors+2], dx 2945 00000E36 A3[9E6D] mov [ppn_Sectors], ax 2946 2947 ; write partition size 2948 ;push dx 2949 ;push ax 2950 ;mov si, msg_partition_sectors + 7 ; max. 8 digits 2951 ; 06/11/2020 2952 00000E39 BE[8F6D] mov si, msg_partition_sectors + 10 ; max. 11 digits 2953 00000E3C E8020E call bin_to_decimal 2954 ; ds:si = beginning of decimal number text 2955 00000E3F E8400D call print_msg 2956 00000E42 BE[B064] mov si, msg_sectors_crlf 2957 00000E45 E83A0D call print_msg 2958 ;pop ax 2959 ;pop dx 2960 2961 00000E48 803E[746D]00 cmp byte [wholedisk], 0 2962 00000E4D 775E ja short B_29 ; 09/02/2019 2963 2964 ; restore ax,dx 2965 00000E4F A1[9E6D] mov ax, [ppn_Sectors] 2966 00000E52 8B16[A06D] mov dx, [ppn_Sectors+2] 2967 2968 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2969 ; select whole disk 2970 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2971 2972 ; select whole disk 2973 ; if partition size > disk size 2974 00000E56 3B16[726D] cmp dx, [pp_Sectors+2] 2975 00000E5A 7708 ja short B_24 2976 00000E5C 724F jb short B_29 2977 00000E5E 3B06[706D] cmp ax, [pp_Sectors] 2978 00000E62 7649 jna short B_29 2979 B_24: 2980 ;cmp byte [newdisk], 0 2981 ;jna short B_30 2982 ; 19/10/2020 2983 00000E64 803E[6070]00 cmp byte [pcount], 0 2984 00000E69 7767 ja short B_30 2985 2986 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2987 ; "use whole disk or go to back" question 2988 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2989 2990 00000E6B BE[164F] mov si, msg_partition_size_overs 2991 B_25: 2992 00000E6E E8110D call print_msg 2993 B_26: 2994 00000E71 30E4 xor ah, ah 2995 00000E73 CD16 int 16h 2996 2997 00000E75 3C1B cmp al, 27 ; ESCAPE key 2998 ;je B_01 2999 00000E77 0F8424FF je B_18 ; 09/02/2019 3000 00000E7B 3C0D cmp al, 13 ; ENTER (Carriage Return) key 3001 00000E7D 75F2 jne short B_26 3002 3003 00000E7F FE06[746D] inc byte [wholedisk] 3004 3005 ; 24/02/2019 3006 ;cmp byte [newdisk], 0 3007 ;ja short B_27 3008 00000E83 803E[6070]00 cmp byte [pcount], 0 ; (valid) partition count 3009 00000E88 7615 jna short B_27 ; no 3010 3011 00000E8A 8B1E[FE70] mov bx, [c_fspc_offset] 3012 00000E8E 8B87[B470] mov ax, [free_space.sectors_unused+bx] 3013 00000E92 8B97[B670] mov dx, [free_space.sectors_unused+bx+2] 3014 00000E96 A3[706D] mov [pp_Sectors], ax 3015 00000E99 8916[726D] mov [pp_Sectors+2], dx 3016 00000E9D EB07 jmp short B_28 3017 B_27: 3018 ; 09/02/2019 3019 00000E9F 8B16[726D] mov dx, [pp_Sectors+2] 3020 00000EA3 A1[706D] mov ax, [pp_Sectors] 3021 B_28: 3022 00000EA6 8916[A06D] mov [ppn_Sectors+2], dx 3023 00000EAA A3[9E6D] mov [ppn_Sectors], ax 3024 B_29: 3025 00000EAD 803E[756D]05 cmp byte [pp_type], 5 3026 00000EB2 0F853601 jne B_51 3027 3028 00000EB6 803E[6170]00 cmp byte [ppcount], 0 ; primary partition count 3029 00000EBB 0F87C500 ja B_45 3030 3031 00000EBF BE[804F] mov si, msg_ext_partition_error 3032 00000EC2 E8BD0C call print_msg 3033 00000EC5 BE[F94E] mov si, msg_any_key_to_retry 3034 00000EC8 E8B70C call print_msg 3035 3036 ; 09/02/2019 3037 00000ECB 30E4 xor ah, ah 3038 00000ECD CD16 int 16h 3039 3040 ;jmp B_01 3041 00000ECF E90BF9 jmp cpi_2 3042 3043 B_30: 3044 ; clear screen 3045 00000ED2 B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 3046 00000ED5 CD10 int 10h 3047 3048 00000ED7 BE[0448] mov si, msg_create_dos_partition_h ; header 3049 00000EDA E8A50C call print_msg 3050 3051 00000EDD BE[5D5E] mov si, msg_partition_size_limit 3052 00000EE0 E89F0C call print_msg 3053 3054 00000EE3 8B1E[FE70] mov bx, [c_fspc_offset] 3055 3056 00000EE7 803E[826D]53 cmp byte [pSize_unit], 'S' 3057 00000EEC 7415 je short B_31 3058 00000EEE 803E[826D]4B cmp byte [pSize_unit], 'K' 3059 00000EF3 740E je short B_31 3060 3061 00000EF5 803E[826D]25 cmp byte [pSize_unit], '%' 3062 00000EFA 7469 je short B_41 3063 3064 00000EFC 803E[826D]43 cmp byte [pSize_unit], 'C' 3065 00000F01 7479 je B_44 3066 B_31: 3067 ; 'S', 'K' 3068 00000F03 81C3[B470] add bx, free_space.sectors_unused 3069 00000F07 8B07 mov ax, [bx] 3070 00000F09 8B5702 mov dx, [bx+2] 3071 3072 00000F0C B90A00 mov cx, 10 3073 00000F0F 89E5 mov bp, sp 3074 B_32: 3075 00000F11 E869FD call div32 3076 00000F14 53 push bx 3077 00000F15 09D2 or dx, dx 3078 00000F17 75F8 jnz short B_32 3079 00000F19 83F809 cmp ax, 9 3080 00000F1C 77F3 ja short B_32 3081 B_33: 3082 00000F1E BB0700 mov bx, 07h 3083 00000F21 09C0 or ax, ax 3084 00000F23 7501 jnz short B_35 3085 B_34: 3086 00000F25 58 pop ax 3087 B_35: 3088 00000F26 0430 add al, '0' 3089 B_36: 3090 00000F28 B40E mov ah, 0Eh 3091 ;mov bx, 07h 3092 00000F2A CD10 int 10h ; write character (as tty) 3093 3094 00000F2C 39EC cmp sp, bp 3095 00000F2E 72F5 jb short B_34 3096 3097 00000F30 803E[826D]53 cmp byte [pSize_unit], 'S' 3098 00000F35 7422 je short B_38 3099 00000F37 803E[826D]4B cmp byte [pSize_unit], 'K' 3100 00000F3C 741B je short B_38 3101 3102 00000F3E 803E[826D]25 cmp byte [pSize_unit], '%' 3103 00000F43 7508 jne short B_37 3104 3105 ; 24/02/2019 3106 00000F45 3C25 cmp al, '%' 3107 00000F47 7416 je short B_40 3108 00000F49 B025 mov al, '%' 3109 00000F4B EBDB jmp short B_36 3110 B_37: 3111 00000F4D 803E[826D]43 cmp byte [pSize_unit], 'C' 3112 00000F52 7505 jne short B_38 3113 3114 00000F54 BE[F95E] mov si, msg_cylinders 3115 00000F57 EB03 jmp short B_39 3116 B_38: 3117 00000F59 BE[045F] mov si, msg_sectors 3118 B_39: 3119 00000F5C E8230C call print_msg 3120 B_40: 3121 00000F5F BE[AA5E] mov si, msg_partition_size_limit_r 3122 ;call print_msg 3123 3124 00000F62 E909FF jmp B_25 3125 3126 B_41: 3127 ; '%' 3128 00000F65 81C3[B270] add bx, free_space.percent_unused 3129 00000F69 8B07 mov ax, [bx] 3130 B_42: 3131 00000F6B 89E5 mov bp, sp 3132 00000F6D B90A00 mov cx, 10 3133 B_43: 3134 00000F70 31D2 xor dx, dx 3135 ;mov cx, 10 3136 00000F72 F7F1 div cx 3137 00000F74 52 push dx 3138 00000F75 83F809 cmp ax, 9 3139 00000F78 77F6 ja short B_43 3140 00000F7A EBA2 jmp short B_33 3141 B_44: 3142 ; 'C' 3143 00000F7C 81C3[AC70] add bx, free_space.space 3144 00000F80 8B07 mov ax, [bx] 3145 00000F82 EBE7 jmp short B_42 3146 3147 B_45: 3148 ; 23/02/2019 3149 00000F84 8B1E[FE70] mov bx, [c_fspc_offset] 3150 00000F88 8B87[AE70] mov ax, [bx+free_space.start] 3151 3152 ; set free space start cylinder to 1 if it is 0 3153 00000F8C 09C0 or ax, ax 3154 00000F8E 750F jnz short B_46 3155 3156 00000F90 B005 mov al, 5 ; Get free space for extended partition 3157 00000F92 E89515 call find_part_free_space 3158 3159 00000F95 891E[FE70] mov [c_fspc_offset], bx 3160 3161 ; 19/10/2020 3162 00000F99 21C9 and cx, cx 3163 00000F9B 0F8428F5 jz cp_3 ; there is not free space on disk 3164 B_46: 3165 ; 24/02/2019 3166 00000F9F E81100 call partition_size_fixup_x 3167 00000FA2 0F822CFF jc B_30 3168 3169 ; 16/02/2019 3170 00000FA6 E83EFB call create_extended_partition 3171 ; must be called after 'find_part_free_space'. 3172 ; 24/02/2019 3173 00000FA9 E86411 call show_selected_partition 3174 00000FAC E9BE00 jmp C_02 3175 3176 partition_size_fixup: 3177 ; 24/02/2019 3178 00000FAF 8B1E[FE70] mov bx, [c_fspc_offset] 3179 partition_size_fixup_x: 3180 ; 19/10/2020 3181 3182 ;cmp byte [newdisk], 0 3183 ;ja short B_50 3184 3185 00000FB3 803E[6070]00 cmp byte [pcount], 0 ; (valid) partition count 3186 00000FB8 7631 jna short B_50 3187 3188 00000FBA 81C3[B470] add bx, free_space.sectors_unused 3189 00000FBE 8B07 mov ax, [bx] 3190 00000FC0 8B5702 mov dx, [bx+2] 3191 3192 00000FC3 3B16[A06D] cmp dx, [ppn_Sectors+2] 3193 00000FC7 7222 jb short B_50 ; 24/02/2019 3194 00000FC9 7708 ja short B_47 3195 00000FCB 3B06[9E6D] cmp ax, [ppn_Sectors] 3196 00000FCF 721A jb short B_50 ; 24/02/2019 3197 00000FD1 7411 je short B_49 3198 3199 B_47: 3200 ; 19/02/2019 3201 00000FD3 A1[9E6D] mov ax, [ppn_Sectors] 3202 B_48: 3203 00000FD6 8B16[A06D] mov dx, [ppn_Sectors+2] 3204 3205 ; 18/02/2019 3206 3207 ; check for best fit 3208 ; (leave max. available space to next time if 3209 ; another space/gap fits to partition size request.) 3210 3211 00000FDA E86517 call find_enough_free_sectors 3212 ; CX = Free space index (0 to 4) 3213 ; DX:AX = First available space which fits to request 3214 ;mov bx, cx 3215 ;shl bl, 4 ; * 16 ; * Free space structure size 3216 ;mov [c_fspc_offset], bx 3217 3218 ; 22/02/2019 3219 00000FDD C0E104 shl cl, 4 3220 00000FE0 890E[FE70] mov [c_fspc_offset], cx 3221 3222 ;add bx, free_space.sectors_unused 3223 ;mov ax, [bx] 3224 ;mov dx, [bx+2] 3225 B_49: 3226 ; Save max. available space 3227 00000FE4 A3[706D] mov [pp_Sectors], ax 3228 00000FE7 8916[726D] mov [pp_Sectors+2], dx 3229 B_50: 3230 00000FEB C3 retn 3231 3232 B_51: 3233 ; 24/02/2019 3234 00000FEC E8C0FF call partition_size_fixup 3235 00000FEF 0F82DFFE jc B_30 3236 3237 ; 16/02/2019 3238 ; Force cylinder boundary alignment except 3239 ; sectors ('S') and kilobytes ('K') as sizing unit. 3240 3241 00000FF3 C606[0071]59 mov byte [cylinder_boundary], 'Y' ; Default 3242 ; sizing unit is one of 3243 ; 'cylinders','megabytes','gigabytes' 3244 ; and boundary alignment is yes for them. 3245 00000FF8 A0[826D] mov al, [pSize_unit] 3246 3247 ;cmp byte [pSize_unit], 'S' ; Sectors 3248 00000FFB 3C53 cmp al, 'S' 3249 00000FFD 7404 je short B_52 3250 3251 ;cmp byte [pSize_unit], 'K' ; Kilobytes 3252 00000FFF 3C4B cmp al, 'K' 3253 00001001 752F jne short B_56 3254 B_52: 3255 ; Sizing unit is one of 'sectors' and/or 'kilobytes' 3256 ; and bound aligment will be applied if the answer will be yes. 3257 3258 00001003 BE[0850] mov si, msg_cylinder_boundary_set 3259 00001006 E8790B call print_msg 3260 B_53: 3261 00001009 30E4 xor ah, ah 3262 0000100B CD16 int 16h 3263 ; Cylinder boundary adjusting 3264 0000100D 3C0D cmp al, 13 ; ENTER key 3265 0000100F 74F2 je short B_52 3266 00001011 3C1B cmp al, 27 ; ESCAPE key 3267 00001013 741A je short B_55 ; Align end of the partition only 3268 ; if start of the partition is aligned 3269 ; or it starts at cyl 0, head 1, sect 17 or 63. 3270 ; (End of the partition will be extended to 3271 ; end sector of it's last cylinder if the size 3272 ; will not over [pp_Sectors] value.) 3273 00001015 24DF and al, 0DFh 3274 3275 ; 22/02/2019 3276 00001017 3C59 cmp al, 'Y' 3277 00001019 7508 jne short B_54 3278 3279 0000101B BE[985C] mov si, _msg_YES 3280 0000101E E8610B call print_msg 3281 3282 ;mov al, 'Y' 3283 ;jmp short B_55 3284 00001021 EB0F jmp short B_56 3285 B_54: 3286 00001023 3C4E cmp al, 'N' 3287 00001025 75E2 jne short B_53 3288 3289 00001027 BE[9E5C] mov si, _msg_NO 3290 0000102A E8550B call print_msg 3291 3292 0000102D B04E mov al, 'N' 3293 ; do not align partition to cylinder boundary 3294 B_55: 3295 0000102F A2[0071] mov [cylinder_boundary], al 3296 B_56: 3297 00001032 E8FCF7 call create_primary_partition 3298 3299 ; 18/02/2019 3300 ;cmp byte [newdisk], 0 3301 ;jna short B_57 3302 3303 ; 19/10/2020 3304 00001035 803E[6070]00 cmp byte [pcount], 0 3305 0000103A 770E ja short B_57 3306 3307 0000103C 31C0 xor ax, ax ; 0 3308 0000103E 31D2 xor dx, dx ; 0 3309 ; DX_AX = Masterboot Sector = 0 3310 00001040 BB[DA55] mov bx, MasterBootBuff 3311 ; ES:BX = Sector Buffer 3312 00001043 E8A10B call write_hd_sector 3313 00001046 0F8247F7 jc print_error_code ; 18/10/2020 3314 B_57: 3315 ; DS:SI = Partition Table Entry address 3316 ; 25/02/2019 3317 0000104A 8936[2671] mov [pte_address], si ; save PTE address 3318 0000104E E8BF10 call show_selected_partition 3319 3320 ;jmp C_01 3321 3322 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3323 ; format question 3324 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3325 3326 C_01: 3327 ;mov si, CRLF 3328 ;call print_msg 3329 3330 00001051 C606[916D]01 mov byte [format_q], 1 3331 3332 00001056 A0[756D] mov al, [pp_type] 3333 00001059 3C01 cmp al, 1 ; FAT12 (CHS) 3334 0000105B 741D je short C_03 3335 0000105D 3C04 cmp al, 4 ; FAT16 CHS 3336 0000105F 7419 je short C_03 3337 00001061 3C06 cmp al, 6 ; FAT16 BIG CHS 3338 00001063 7415 je short C_03 3339 00001065 3C0B cmp al, 0Bh ; FAT32 CHS 3340 00001067 7411 je short C_03 3341 00001069 3CA1 cmp al, 0A1h ; SINGLIX FS1 3342 0000106B 740D je short C_03 3343 3344 ;cmp al, 71h 3345 ;je short C_03 ; RETRO UNIX 386 3346 3347 ;dec byte [format_q] ; 0 3348 C_02: 3349 0000106D C606[916D]00 mov byte [format_q], 0 ; 24/02/2019 3350 3351 ; NON-DOS partition! 3352 ; Ask for editing PT or exit (continue without formatting) 3353 00001072 BE[8E53] mov si, msg_edit_or_exit 3354 00001075 E80A0B call print_msg 3355 00001078 EB06 jmp short C_04 3356 C_03: 3357 ; Ask for formatting, editing PT or exit 3358 0000107A BE[1F53] mov si, msg_format_stage 3359 0000107D E8020B call print_msg 3360 C_04: 3361 00001080 BE[5F53] mov si, msg_partition_edit 3362 00001083 E8FC0A call print_msg 3363 C_05: 3364 00001086 28E4 sub ah, ah 3365 00001088 CD16 int 16h 3366 3367 0000108A 3C0D cmp al, 13 3368 0000108C 7435 je short C_08 3369 3370 ;; 07/03/2019 3371 0000108E 3C20 cmp al, 20h ; SPACE 3372 ;je A_21 ; edit partition table option is selected 3373 00001090 7503 jne short C_06 3374 ; 19/10/2020 3375 00001092 E955F1 jmp A_21 3376 C_06: 3377 00001095 3C1B cmp al, 27 ; ESCAPE 3378 00001097 75ED jne short C_05 3379 3380 ; 19/010/2020 3381 00001099 E911F7 jmp _exit 3382 3383 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3384 ; save MBR then exit 3385 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3386 3387 save_mbr_exit: 3388 ; 24/02/2019 3389 0000109C E85612 call init_partition_table 3390 3391 0000109F E83917 call display_partition_table 3392 3393 000010A2 BE[5F55] mov si, CRLF 3394 000010A5 E8DA0A call print_msg 3395 3396 000010A8 BE[1354] mov si, msg_writing_mbr 3397 000010AB E8D40A call print_msg 3398 3399 000010AE 31C0 xor ax, ax ; 0 3400 000010B0 31D2 xor dx, dx ; 0 3401 ; DX_AX = Masterboot Sector = 0 3402 000010B2 BB[DA55] mov bx, MasterBootBuff 3403 ; ES:BX = Sector Buffer 3404 000010B5 E82F0B call write_hd_sector 3405 000010B8 7303 jnc short C_07 3406 000010BA E9D4F6 jmp print_error_code ; 18/10/2020 3407 3408 C_07: 3409 000010BD BE[5B55] mov si, Msg_OK 3410 ;call print_msg 3411 ; 19/10/2020 3412 ;jmp _exit 3413 000010C0 E9E7F6 jmp _p_exit 3414 3415 C_08: 3416 000010C3 803E[916D]01 cmp byte [format_q], 1 3417 000010C8 72D2 jb short save_mbr_exit 3418 3419 ; 25/02/2019 3420 ; Write MBR without writing message 3421 3422 ; NOTE: This may be second time of MBR writing... 3423 ; but, if partition table is modified, 3424 ; we need to write MBR to disk, here. 3425 ; 3426 ; (Otherwise.. the last created partition would not be recorded.) 3427 3428 000010CA 31C0 xor ax, ax ; 0 3429 000010CC 31D2 xor dx, dx ; 0 3430 ; DX_AX = Masterboot Sector = 0 3431 000010CE BB[DA55] mov bx, MasterBootBuff 3432 ; ES:BX = Sector Buffer 3433 000010D1 E8130B call write_hd_sector 3434 000010D4 0F82B9F6 jc print_error_code ; 18/10/2020 3435 3436 ;; clear screen 3437 ;mov ax, 3 ; set video mode to 03h (80x25 text) 3438 ;int 10h 3439 3440 ; 25/02/2019 3441 000010D8 8B36[2671] mov si, [pte_address] 3442 3443 ; 18/02/2019 3444 000010DC E83110 call show_selected_partition 3445 3446 000010DF A0[4653] mov al, [partition_num_chr] 3447 000010E2 A2[0654] mov [partition_num_txt], al 3448 3449 000010E5 BE[E453] mov si, msg_format_question 3450 000010E8 E8970A call print_msg 3451 C_09: 3452 000010EB 30E4 xor ah, ah 3453 000010ED CD16 int 16h 3454 3455 000010EF 3C1B cmp al, 1Bh ; ESCAPE 3456 000010F1 74A2 je short C_06 3457 3458 000010F3 24DF and al, 0DFh ; capitalization 3459 000010F5 3C59 cmp al, 'Y' 3460 000010F7 740C je short C_10 3461 000010F9 3C4E cmp al, 'N' 3462 000010FB 75EE jne short C_09 3463 000010FD BE[9E5C] mov si, _msg_NO 3464 00001100 E87F0A call print_msg 3465 ;jmp short C_06 3466 ; 24/02/2019 3467 00001103 EB97 jmp short save_mbr_exit 3468 C_10: 3469 00001105 BE[985C] mov si, _msg_YES 3470 00001108 E8770A call print_msg 3471 3472 ; [pp_StartSector] = partition's start sector 3473 ; [pp_Sectors] = partition size including start & end sector 3474 ; [partition_num_chr] = partition number + '0' 3475 ; [pp_type] = partition type (for TRDOS 386 boot sector) 3476 3477 0000110B 8926[E468] mov [old_sp], sp 3478 3479 0000110F 8A16[756D] mov dl, [pp_type] 3480 ; DL = partition type (file system ID) 3481 ;dec dl 3482 ;jz FAT12_hd_format 3483 00001113 80FA01 cmp dl, 1 ; 14/09/2020 (BugFix) 3484 00001116 0F86D505 jna FAT12_hd_format 3485 ;cmp dl, 4 3486 ;je FAT16_hd_format 3487 ;cmp dl, 6 3488 ;je FAT16_hd_format 3489 0000111A 80FA0B cmp dl, 0Bh 3490 0000111D 0F82D203 jb FAT16_hd_format 3491 ;je short FAT32_hd_format 3492 ;cmp dl, 0Ch ; 14/09/2020 3493 00001121 0F876207 ja SINGLIX_hd_format 3494 3495 ;cmp dl, 0A1h 3496 ;je SINGLIX_hd_format 3497 ;jb RUNIX386_hd_format ; dl = 071h 3498 3499 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3500 ; FAT32 FORMATTING 3501 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3502 3503 ; 08/02/2019 (Modified for -only- FAT32 CHS partitions) 3504 FAT32_hd_format: 3505 ;mov ax, 000Ch ; db 0Ch, 00h ; 'or al, 0' 3506 ;cmp dl, al ; 0Ch 3507 ;je short FAT32_lbAx_format 3508 ;mov ax, 0C00Bh ; db 0Bh, 0C0h ; 'or ax, ax' 3509 ;FAT32_lba_format: 3510 ; Put TRDOS 386 FAT32 partition magic word 3511 ; at offset 5Ah, in TRDOS386 FAT32 boot sector 0. 3512 00001125 BD[5B33] mov bp, TRDOS_FAT32_hd_bs 3513 00001128 8D7E03 lea di, [bp+3] 3514 0000112B BE[BC64] mov si, bs_oem_name 3515 0000112E B90400 mov cx, 4 3516 00001131 F3A5 rep movsw 3517 ;mov [bp+5Ah], ax ; [loc_5A] 3518 00001133 C7465A0BC0 mov word [bp+5Ah], 0C00Bh ; 08/02/2019 3519 00001138 A1[6E3F] mov ax, [sectors] 3520 0000113B 894618 mov [bp+18h], ax ; [BPB_SecPerTrk] 3521 0000113E A1[703F] mov ax, [heads] 3522 00001141 89461A mov [bp+1Ah], ax ; [BPB_NumHeads] 3523 00001144 A1[6C6D] mov ax, [pp_StartSector] 3524 00001147 89461C mov [bp+1Ch], ax ; [BPB_HiddSec] 3525 0000114A A1[6E6D] mov ax, [pp_StartSector+2] 3526 0000114D 89461E mov [bp+1Eh], ax ; [BPB_HiddSec+2] 3527 ;mov ax, [pp_Sectors] 3528 00001150 A1[9E6D] mov ax, [ppn_Sectors] ; 16/02/2019 3529 00001153 894620 mov [bp+20h], ax ; [BPB_TotSec32] 3530 ;mov dx, [pp_Sectors+2] 3531 00001156 8B16[A06D] mov dx, [ppn_Sectors+2] ; 16/02/2019 3532 0000115A 895622 mov [bp+22h], dx ; [BPB_TotSec32+2] 3533 3534 ; Sectors per cluster calculation 3535 ; (According to MS FAT32 FS specification.) 3536 0000115D B108 mov cl, 8 ; 8 sectors per cluster 3537 0000115F 83FA08 cmp dx, 8 ; >= 532480 sectors 3538 00001162 7709 ja short FAT32_f_2 ; 8 sectors per cluster 3539 00001164 7205 jb short FAT32_f_1 ; 1 sector per cluster 3540 00001166 3D0020 cmp ax, 2000h ; dx_ax = (8*65536)+8192 3541 00001169 7302 jnb short FAT32_f_2 ; 12/09/2020 (BugFix) 3542 FAT32_f_1: 3543 0000116B B101 mov cl, 1 ; 1 sector per cluster 3544 FAT32_f_2: 3545 0000116D 884E0D mov [bp+0Dh], cl ; [BPB_SecPerClus] 3546 ;mov byte [bp+10h], 2 ; [BPB_NumFATs] 3547 ;mov word [bp+0Eh], 32 ; [BPB_RsvdSecCnt] 3548 3549 ; Calculating FAT size in sectors 3550 ; (According to MS FAT32 FS Specification, 2000) 3551 3552 ; DX_AX = partition (volume) size in sectors 3553 00001170 2B460E sub ax, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 32 3554 00001173 83DA00 sbb dx, 0 3555 ; TmpVal1 = DiskSize - (BPB_ResvdSecCnt + 3556 ; RootDirsectors) 3557 ; RootDirSectors = 0 (for FAT32 FS) 3558 00001176 89CB mov bx, cx ; ch = 0 3559 00001178 C1E308 shl bx, 8 ; * 256 3560 0000117B 8A4E10 mov cl, [bp+10h] ; [BPB_NumFATs] 3561 0000117E 01CB add bx, cx 3562 ; TmpVal2 = (256*BPB_SecPerClus)+BPB_NumFATs 3563 00001180 D1EB shr bx, 1 3564 ; TmpVal2 = TmpVal2/2 3565 00001182 89D9 mov cx, bx 3566 00001184 4B dec bx ; TmpVal2-1 3567 00001185 01D8 add ax, bx 3568 00001187 83D200 adc dx, 0 3569 0000118A E8F0FA call div32 3570 ; FATSz = (TmpVal1+(TmpVal2-1))/TmpVal2 3571 ; DX_AX = FAT size in sectors 3572 0000118D 894624 mov [bp+24h], ax ; [BPB_FATSz32] 3573 00001190 895626 mov [bp+26h], dx ; [BPB_FATSz32+2] 3574 ; * 2 3575 00001193 89D3 mov bx, dx 3576 00001195 01C0 add ax, ax 3577 00001197 11D3 adc bx, dx 3578 ; BX_AX = [BPB_NumFATs] * [BPB_FATSz32] 3579 00001199 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 32 3580 0000119C 01C1 add cx, ax 3581 0000119E 83D300 adc bx, 0 3582 ; BX_CX = [BPB_RsvdSecCnt]+[BPB_NumFATs]*[BPB_FATSz32] 3583 000011A1 8B4620 mov ax, [bp+20h] ; [BPB_TotSec32] 3584 000011A4 8B5622 mov dx, [bp+22h] ; [BPB_TotSec32+2] 3585 000011A7 29C8 sub ax, cx 3586 000011A9 19DA sbb dx, bx 3587 000011AB 890E[E66A] mov [data_start], cx 3588 000011AF 891E[E86A] mov [data_start+2], bx 3589 ; DX_AX = Data sectors 3590 000011B3 A3[EA6A] mov [data_sectors], ax 3591 000011B6 8916[EC6A] mov [data_sectors+2], dx 3592 000011BA 8A4E0D mov cl, [bp+0Dh] ; [BPB_SecPerClus] 3593 000011BD 30ED xor ch, ch 3594 000011BF E8BBFA call div32 ; DX_AX/CX 3595 ; DX_AX = Count of clusters (rounded down) 3596 000011C2 A3[EE6A] mov [cluster_count], ax 3597 000011C5 8916[F06A] mov [cluster_count+2], dx 3598 3599 000011C9 8D7E47 lea di, [bp+71] ; [BS_VolLab] 3600 000011CC E89B01 call write_volume_name 3601 000011CF 8D7643 lea si, [bp+67] ; [BS_VolID] 3602 000011D2 E8F401 call write_volume_serial 3603 000011D5 E80503 call write_cluster_count 3604 3605 000011D8 E87502 call write_formatting_msg 3606 000011DB B000 mov al, 0 3607 000011DD E8D102 call write_format_percent_x 3608 3609 000011E0 8B461C mov ax, [bp+1Ch] ; [BPB_HiddSec] 3610 000011E3 8B561E mov dx, [bp+1Eh] ; [BPB_HiddSec+2] 3611 000011E6 0106[E66A] add [data_start], ax 3612 000011EA 1116[E86A] adc [data_start+2], dx 3613 FAT32_f_3: 3614 ; DX_AX = FAT32 Boot Sector address 3615 000011EE BB[5B33] mov bx, TRDOS_FAT32_hd_bs 3616 ; ES:BX = Boot Sector 1 Buffer 3617 000011F1 E8F309 call write_hd_sector 3618 000011F4 0F82CD02 jc formatting_error 3619 000011F8 E87902 call write_format_percent 3620 000011FB 83C001 add ax, 1 3621 000011FE 83D200 adc dx, 0 3622 00001201 BB[D266] mov bx, HDFORMAT_FSINFO_BUFF 3623 ; ES:BX = FS INFO Sector Buffer (= BS+1) 3624 00001204 E8E009 call write_hd_sector 3625 00001207 0F82BA02 jc formatting_error 3626 0000120B E86602 call write_format_percent 3627 0000120E 83C001 add ax, 1 3628 00001211 83D200 adc dx, 0 3629 00001214 BB[5B35] mov bx, TRDOS_FAT32_hd_bs + 512 3630 ; ES:BX = Boot Sector 2 Buffer 3631 00001217 E8CD09 call write_hd_sector 3632 0000121A 0F82A702 jc formatting_error 3633 0000121E E85302 call write_format_percent 3634 00001221 B90300 mov cx, 3 3635 FAT32_f_4: 3636 00001224 51 push cx 3637 00001225 83C001 add ax, 1 3638 00001228 83D200 adc dx, 0 3639 0000122B BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 3640 0000122E E8B609 call write_hd_sector 3641 00001231 0F829002 jc formatting_error 3642 00001235 E83C02 call write_format_percent 3643 00001238 59 pop cx 3644 00001239 FEC9 dec cl 3645 0000123B 75E7 jnz short FAT32_f_4 3646 0000123D 83C001 add ax, 1 3647 00001240 83D200 adc dx, 0 3648 00001243 8B4E1C mov cx, [bp+1Ch] ; [BPB_HiddSec] 3649 00001246 8B5E1E mov bx, [bp+1Eh] ; [BPB_HiddSec+2] 3650 00001249 83C10C add cx, 12 3651 0000124C 83D300 adc bx, 0 3652 ; write BACKUP sectors 3653 ; (6,7,8 boot+fsi and 9,10,11 empty sectors) 3654 0000124F 39DA cmp dx, bx 3655 00001251 729B jb short FAT32_f_3 3656 00001253 39C8 cmp ax, cx 3657 00001255 7297 jb short FAT32_f_3 3658 ; write remain part of reserved sectors 3659 00001257 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] 3660 0000125A 83E90C sub cx, 12 3661 0000125D 7618 jna short FAT32_f_6 3662 FAT32_f_5: 3663 0000125F 51 push cx 3664 00001260 BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 3665 00001263 E88109 call write_hd_sector 3666 00001266 0F825B02 jc formatting_error 3667 0000126A E80702 call write_format_percent 3668 0000126D 83C001 add ax, 1 3669 00001270 83D200 adc dx, 0 3670 00001273 59 pop cx 3671 00001274 49 dec cx 3672 00001275 75E8 jnz short FAT32_f_5 3673 FAT32_f_6: 3674 ; write FAT sectors 3675 00001277 8B0E[E66A] mov cx, [data_start] ; lba/abs addr 3676 0000127B 8B1E[E86A] mov bx, [data_start+2] ; lba/abs addr 3677 0000127F 53 push bx 3678 00001280 51 push cx 3679 00001281 BB[E668] mov bx, HDFORMAT_FATBUFFER 3680 ; ES:BX = FAT Sector Buffer 3681 00001284 8A4E15 mov cl, [bp+15h] ; [BPB_Media] 3682 00001287 B5FF mov ch, 0FFh 3683 00001289 890F mov [bx], cx 3684 0000128B 88E9 mov cl, ch ; cx = 0FFFFh 3685 0000128D 894F02 mov [bx+2], cx 3686 00001290 894F04 mov [bx+4], cx 3687 00001293 894F06 mov [bx+6], cx 3688 ; Root dir cluster number = 2 3689 ; 0FFFFFFFh = end of cluster chain 3690 00001296 894F08 mov [bx+8], cx ; 0FFFFh 3691 00001299 80E50F and ch, 0Fh 3692 0000129C 894F0A mov [bx+10], cx ; 0FFFh 3693 ;inc cx 3694 0000129F E84509 call write_hd_sector 3695 000012A2 0F821F02 jc formatting_error 3696 000012A6 E8CB01 call write_format_percent 3697 ;mov bx, HDFORMAT_FATBUFFER 3698 000012A9 B90000 mov cx, 0 3699 000012AC 890F mov [bx], cx 3700 000012AE 894F02 mov [bx+2], cx 3701 000012B1 894F04 mov [bx+4], cx 3702 000012B4 894F06 mov [bx+6], cx 3703 000012B7 894F08 mov [bx+8], cx 3704 000012BA 894F0A mov [bx+10], cx 3705 000012BD EB0F jmp short FAT32_f_8 3706 FAT32_f_7: 3707 000012BF 53 push bx 3708 000012C0 51 push cx 3709 000012C1 BB[E668] mov bx, HDFORMAT_FATBUFFER 3710 000012C4 E82009 call write_hd_sector 3711 000012C7 0F82FA01 jc formatting_error 3712 000012CB E8A601 call write_format_percent 3713 FAT32_f_8: 3714 000012CE 59 pop cx 3715 000012CF 5B pop bx 3716 000012D0 83C001 add ax, 1 3717 000012D3 83D200 adc dx, 0 3718 000012D6 39DA cmp dx, bx 3719 000012D8 72E5 jb short FAT32_f_7 3720 000012DA 39C8 cmp ax, cx 3721 000012DC 72E1 jb short FAT32_f_7 3722 3723 ; write root directory (1st cluster) 3724 ; as empty sectors 3725 000012DE 8A4E0D mov cl, [bp+0Dh] ; [BPB_SecPerClus] 3726 000012E1 30ED xor ch, ch 3727 000012E3 290E[EA6A] sub [data_sectors], cx 3728 000012E7 831E[EC6A]00 sbb word [data_sectors+2], 0 3729 FAT32_f_9: 3730 000012EC 51 push cx 3731 000012ED BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 3732 000012F0 E8F408 call write_hd_sector 3733 000012F3 0F82CE01 jc formatting_error 3734 000012F7 E87A01 call write_format_percent 3735 000012FA 83C001 add ax, 1 3736 000012FD 83D200 adc dx, 0 3737 00001300 59 pop cx 3738 00001301 FEC9 dec cl 3739 00001303 75E7 jnz short FAT32_f_9 3740 3741 ; write DATA sectors 3742 ; (after root directory 1st cluster) 3743 00001305 8B0E[EA6A] mov cx, [data_sectors] 3744 00001309 8B1E[EC6A] mov bx, [data_sectors+2] 3745 ; NOTE: Partition size must be >= 512 MB 3746 ; for FAT32 FS ((BX >= 15)) 3747 FAT32_f_10: 3748 0000130D 53 push bx 3749 0000130E 51 push cx 3750 0000130F BB[D264] mov bx, HDFORMAT_SECBUFFER 3751 00001312 E8D208 call write_hd_sector 3752 00001315 0F82AC01 jc formatting_error 3753 00001319 E85801 call write_format_percent 3754 0000131C 59 pop cx 3755 0000131D 5B pop bx 3756 0000131E 83C001 add ax, 1 3757 00001321 83D200 adc dx, 0 3758 00001324 49 dec cx 3759 00001325 75E6 jnz short FAT32_f_10 3760 00001327 4B dec bx 3761 00001328 75E3 jnz short FAT32_f_10 3762 3763 ; If there are, format remain sectors which are 3764 ; at beyond of data clusters, with zero bytes. 3765 3766 0000132A 8B4E1C mov cx, [bp+1Ch] ; [BPB_HiddSec] 3767 0000132D 8B5E1E mov bx, [bp+1Eh] ; [BPB_HiddSec+2] 3768 FAT16_f_18: 3769 00001330 034E20 add cx, [bp+20h] ; [BPB_TotSec32] 3770 00001333 135E22 adc bx, [bp+22h] ; [BPB_TotSec32+2] 3771 FAT16_f_19: 3772 FAT12_f_8: 3773 ; are there remain sectors (in partition) ? 3774 00001336 29C1 sub cx, ax 3775 00001338 19D3 sbb bx, dx 3776 ; 11/02/2019 3777 ; BX must be 0 (Because, 1 cluster <= 32KB. So, 3778 ; remain sectors must not be more than 32K) 3779 0000133A 751C jnz short FAT32_f_12 ; There is a wrong thing !!! 3780 ; If BX is not zero, 3781 ; it is better to skip this stage...) 3782 0000133C 09C9 or cx, cx 3783 0000133E 7418 jz short FAT32_f_12 ; no.. 3784 ; (good! FAT contains all data sectors) 3785 FAT32_f_11: 3786 00001340 51 push cx 3787 00001341 BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 3788 00001344 E8A008 call write_hd_sector 3789 00001347 0F827A01 jc formatting_error 3790 0000134B E82601 call write_format_percent 3791 0000134E 59 pop cx 3792 0000134F 83C001 add ax, 1 3793 00001352 83D200 adc dx, 0 3794 00001355 49 dec cx 3795 00001356 75E8 jnz short FAT32_f_11 3796 3797 FAT32_f_12: 3798 SINGLIX_fs1_f_12: 3799 ; End of FAT format routine... 3800 end_of_formatting: 3801 00001358 B064 mov al, 100 3802 0000135A E85401 call write_format_percent_x 3803 ;mov si, CRLF 3804 ;call print_msg 3805 0000135D BE[5B55] mov si, Msg_OK 3806 ;call print_msg 3807 ;jmp _exit 3808 ; 19/10/2020 3809 00001360 E947F4 jmp _p_exit 3810 3811 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3812 ; set & write volume name 3813 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3814 3815 write_fs_volume_name: 3816 00001363 C606[BB64]40 mov byte [vname_length], 64 3817 00001368 EB05 jmp short svn_fs 3818 3819 write_volume_name: 3820 0000136A C606[BB64]0B mov byte [vname_length], 11 3821 svn_fs: 3822 ; DI = (BS) Volume Label address 3823 0000136F BE[FD54] mov si, Msg_Volume_Name 3824 00001372 E80D08 call print_msg 3825 3826 ; get cursor position 3827 ; bh = 0 ; video page 3828 00001375 B403 mov ah, 3 ; get cursor pos 3829 00001377 CD10 int 10h 3830 00001379 8916[A354] mov [Cursor_Pos], dx 3831 3832 0000137D E8EF08 call rw_char 3833 00001380 7207 jc short svn_1 3834 svn_0: 3835 00001382 AC lodsb 3836 00001383 3C20 cmp al, 20h 3837 00001385 7706 ja short svn_2 3838 00001387 74F9 je short svn_0 3839 svn_1: 3840 00001389 BE[C664] mov si, no_name 3841 0000138C AC lodsb 3842 svn_2: 3843 ;mov di, [bp+47h) ; [BS_VolLab] ; FAT32 3844 ;mov di, [bp+2Bh) ; [BS_VolLab] ; FAT16 (&FAT12) 3845 0000138D 89FB mov bx, di ; * 3846 0000138F 30ED xor ch, ch 3847 00001391 8A0E[BB64] mov cl, [vname_length] ; 11 3848 00001395 EB05 jmp short svn_4 3849 svn_3: 3850 00001397 AC lodsb 3851 00001398 3C20 cmp al, 20h 3852 0000139A 7226 jb short svn_6 3853 svn_4: 3854 0000139C AA stosb 3855 0000139D E2F8 loop svn_3 3856 svn_5: 3857 0000139F 8A0E[BB64] mov cl, [vname_length] ; 11 3858 000013A3 89DE mov si, bx ; * 3859 000013A5 BF[BC54] mov di, StrVolumeName 3860 000013A8 F3A4 rep movsb 3861 ;mov byte [di], 0 3862 3863 000013AA 8B16[A354] mov dx, [Cursor_Pos] 3864 000013AE BB0700 mov bx, 7 3865 000013B1 B402 mov ah, 2 3866 000013B3 CD10 int 10h ; Set Cursor Position 3867 3868 000013B5 BE[BC54] mov si, StrVolumeName 3869 000013B8 E8C707 call print_msg 3870 000013BB BE[5F55] mov si, CRLF 3871 000013BE E8C107 call print_msg 3872 000013C1 C3 retn 3873 svn_6: 3874 000013C2 B020 mov al, 20h 3875 svn_7: 3876 000013C4 AA stosb 3877 000013C5 E2FD loop svn_7 3878 000013C7 EBD6 jmp short svn_5 3879 3880 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3881 ; set & write volume serial number (volume ID) 3882 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3883 3884 write_volume_serial: 3885 ; SI = (BS) Volume Serial Number (binary) address 3886 3887 ;xor ax, ax 3888 ;int 1Ah ; get time of day 3889 3890 ;mov [si], dx 3891 ;mov [si+2], cx ; set unique volume ID 3892 3893 ;mov ah, 02h ; Return Current Time 3894 ;int 1Ah 3895 ;xchg ch, cl 3896 ;xchg dh, dl 3897 3898 ;add cx, dx 3899 ;add [si+2], cx 3900 3901 ;mov ah, 04h ; Return Current Date 3902 ;int 1Ah 3903 3904 ;xchg ch,cl 3905 ;xchg dh,dl 3906 3907 ;add cx, dx 3908 ;add [si+2], cx 3909 3910 ; According to Microsoft DOS 6.0 serial number 3911 ; production method... 3912 ; < Create unique 32 bit serial number > 3913 3914 ; Create_Serial_ID (MSDOS 6.0 Source code, MSFOR.ASM) 3915 ; (20/04/1987) 3916 ; 3917 ; Get date (INT 21h, AH=2Bh) 3918 ; Get time (INT 21h, AH=2Ch) 3919 ; Serial_ID+0 = DX reg date + DX reg time 3920 ; Serial_ID+2 = CX reg date + CX reg time 3921 ; Serial_Num_Low = Serial_ID+2 3922 ; Serial_Num_High = Serial_ID+0 3923 3924 000013C9 B404 mov ah, 04h ; Return Current Date 3925 000013CB CD1A int 1Ah 3926 3927 ; DL = Day (BCD) (20h) 3928 ; DH = Month (BCD) (12h) 3929 ; CH = Century (BCD) (20h) 3930 ; CL = Year (BCD) (17h) 3931 3932 000013CD 88D0 mov al, dl 3933 000013CF E87100 call bcd_to_bin 3934 000013D2 88C2 mov dl, al 3935 000013D4 88F0 mov al, dh 3936 000013D6 E86A00 call bcd_to_bin 3937 000013D9 88C6 mov dh, al 3938 000013DB 88C8 mov al, cl 3939 000013DD E86300 call bcd_to_bin 3940 000013E0 88C1 mov cl, al 3941 000013E2 88E8 mov al, ch 3942 000013E4 E85C00 call bcd_to_bin 3943 000013E7 88C5 mov ch, al 3944 3945 ; DH = Month (1-10) 3946 ; DL = Day (1-31) 3947 ; CX = Year (1900-2099) 3948 3949 000013E9 52 push dx 3950 000013EA 51 push cx 3951 3952 000013EB B402 mov ah, 02h ; Return Current Time 3953 000013ED CD1A int 1Ah 3954 3955 ; DH = Seconds (BCD) (59h) 3956 ; CL = Minutes (BCD) (59h) 3957 ; CH = Hours (BCD) (23h) 3958 ; DL = Daylight savings time option (1=yes) 3959 3960 000013EF 88F0 mov al, dh 3961 000013F1 E84F00 call bcd_to_bin 3962 000013F4 88C6 mov dh, al 3963 000013F6 88C8 mov al, cl 3964 000013F8 E84800 call bcd_to_bin 3965 000013FB 88C1 mov cl, al 3966 000013FD 88E8 mov al, ch 3967 000013FF E84100 call bcd_to_bin 3968 00001402 88C5 mov ch, al 3969 3970 ; CH = Hour (0-23) 3971 ; CL = Minutes (0-59) 3972 ; DH = Seconds (0-59) 3973 ; ((DL = Hundredths (0-99) - MSDOS!)) 3974 ; DL = 0 or 1 (here!) 3975 3976 00001404 89C8 mov ax, cx 3977 00001406 59 pop cx 3978 00001407 01C8 add ax, cx 3979 3980 00001409 894402 mov [si+2], ax 3981 3982 0000140C 89D0 mov ax, dx 3983 0000140E 5A pop dx 3984 0000140F 01D0 add ax, dx 3985 3986 00001411 8904 mov [si], ax 3987 3988 00001413 30E4 xor ah, ah ; Read time counter 3989 00001415 CD1A int 1Ah 3990 3991 ; CX = High word of clock count 3992 ; DX = Low word of clock count 3993 ; AL = 0 if 24 hours has not passed, else 1 3994 3995 ; NOTES: 3996 ; (Ref: vitaly_filatov.tripod.com/ng/asm/asm_029.1.html) 3997 ; 3998 ; Following formulas convert the clock count to 3999 ; the time of day: 4000 ; Hour = Clock / 65543 (1007h) 4001 ; Remainder = Clock MOD 65543 4002 ; 4003 ; Minutes = Remainder / 1092 (444h) 4004 ; Remainder = Remainder MOD 1092 4005 ; 4006 ; Second = Remainder / 18.21 4007 ; Remainder = Remainder MOD 18.21 4008 ; 4009 ; Hundredths = CINT(Remainder * 100) 4010 4011 00001417 0014 add [si], dl 4012 4013 ; SI = Volume serial number address (4 bytes) 4014 00001419 8A04 mov al, [si] 4015 0000141B E83A08 call bin_to_hex 4016 0000141E A3[2855] mov [Vol_Serial2+2], ax 4017 00001421 8A4401 mov al, [si+1] 4018 00001424 E83108 call bin_to_hex 4019 00001427 A3[2655] mov [Vol_Serial2], ax 4020 0000142A 8A4402 mov al, [si+2] 4021 0000142D E82808 call bin_to_hex 4022 00001430 A3[2355] mov [Vol_Serial1+2], ax 4023 00001433 8A4403 mov al, [si+3] 4024 00001436 E81F08 call bin_to_hex 4025 00001439 A3[2155] mov [Vol_Serial1], ax 4026 4027 0000143C BE[0F55] mov si, Msg_Volume_Serial 4028 0000143F E84007 call print_msg 4029 4030 00001442 C3 retn 4031 4032 bcd_to_bin: 4033 00001443 53 push bx 4034 00001444 D410 db 0D4h,10h ; Undocumented inst. AAM 4035 ; AH = AL / 10h 4036 ; AL = AL MOD 10h 4037 00001446 88C3 mov bl, al 4038 00001448 B00A mov al, 10 4039 0000144A F6E4 mul ah 4040 0000144C 00D8 add al, bl 4041 0000144E 5B pop bx 4042 0000144F C3 retn 4043 4044 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4045 ; write formatting percentage 4046 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4047 4048 write_formatting_msg: 4049 ;mov ax, [pp_Sectors] 4050 ;mov dx, [pp_Sectors+2] 4051 ; 16/02/2019 4052 00001450 A1[9E6D] mov ax, [ppn_Sectors] 4053 00001453 8B16[A06D] mov dx, [ppn_Sectors+2] 4054 4055 ; DX_AX = Total sectors for percentage 4056 ;mov cx, 100 4057 00001457 B90064 mov cx, 256*100 ; 16/03/2021 4058 0000145A E820F8 call div32 4059 0000145D A3[F46A] mov [format_percent], ax 4060 4061 00001460 BE[4755] mov si, msg_formatting 4062 00001463 E81C07 call print_msg 4063 4064 ; get cursor position 4065 ; bh = 0 ; video page 4066 00001466 B403 mov ah, 3 ; get cursor pos 4067 00001468 CD10 int 10h 4068 0000146A 8916[A354] mov [Cursor_Pos], dx 4069 4070 0000146E C606[F66A]FF mov byte [prev_percent], 255 4071 4072 00001473 C3 retn 4073 4074 write_format_percent: 4075 ; DX_AX = Current sector (which has been written) 4076 4077 00001474 50 push ax 4078 00001475 52 push dx 4079 00001476 53 push bx 4080 00001477 51 push cx 4081 00001478 56 push si 4082 4083 00001479 2B461C sub ax, [bp+1Ch] ; [BPB_HiddSec] 4084 0000147C 1B561E sbb dx, [bp+1Eh] ; [BPB_HiddSec+2] 4085 wpc_t: 4086 0000147F 8B0E[F46A] mov cx, [format_percent] 4087 00001483 E8F7F7 call div32 4088 ; AL = percentage value between 1 to 100 4089 ; 16/03/2021 4090 ; AH = percentage value between 1 to 100 4091 wpc_x: 4092 ;cmp al, [prev_percent] 4093 ;je short wpc_y 4094 ;mov [prev_percent], al 4095 ; 16/03/2021 4096 00001486 3A26[F66A] cmp ah, [prev_percent] 4097 0000148A 741F je short wpc_y 4098 0000148C 8826[F66A] mov [prev_percent], ah 4099 00001490 8B16[A354] mov dx, [Cursor_Pos] 4100 00001494 BB0700 mov bx, 7 4101 00001497 B402 mov ah, 2 4102 00001499 CD10 int 10h ; Set Cursor Position 4103 0000149B 31D2 xor dx, dx 4104 0000149D 30E4 xor ah, ah 4105 0000149F A0[F66A] mov al, [prev_percent] ; 16/03/2021 4106 000014A2 BE[5555] mov si, format_percent_str + 2 4107 000014A5 E89907 call bin_to_decimal 4108 000014A8 E8D706 call print_msg 4109 wpc_y: 4110 000014AB 5E pop si 4111 000014AC 59 pop cx 4112 000014AD 5B pop bx 4113 000014AE 5A pop dx 4114 000014AF 58 pop ax 4115 000014B0 C3 retn 4116 4117 write_format_percent_x: 4118 ; AL = % number 4119 4120 000014B1 50 push ax 4121 000014B2 52 push dx 4122 000014B3 53 push bx 4123 000014B4 51 push cx 4124 000014B5 56 push si 4125 4126 000014B6 EBCE jmp short wpc_x 4127 4128 write_fs_format_percent: 4129 ; DX_AX = Current sector (which has been written) 4130 4131 000014B8 50 push ax 4132 000014B9 52 push dx 4133 000014BA 53 push bx 4134 000014BB 51 push cx 4135 000014BC 56 push si 4136 4137 000014BD 2B460C sub ax, [bp+0Ch] ; [bsBeginSector] 4138 000014C0 1B560E sbb dx, [bp+0Eh] ; [bsBeginSector+2] 4139 000014C3 EBBA jmp short wpc_t 4140 4141 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4142 ; format error 4143 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4144 4145 formatting_error: 4146 000014C5 8B26[E468] mov sp, [old_sp] 4147 4148 000014C9 88E0 mov al, ah ; error code 4149 000014CB E88A07 call bin_to_hex 4150 000014CE A3[6D55] mov [error_code], ax 4151 4152 000014D1 BE[5F55] mov si, CRLF 4153 000014D4 E8AB06 call print_msg 4154 4155 000014D7 BE[6255] mov si, Msg_Error 4156 ;call print_msg 4157 ;jmp _exit 4158 ; 19/10/2020 4159 000014DA E9CDF2 jmp _p_exit 4160 4161 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4162 ; write cluster count 4163 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4164 4165 write_cluster_count: 4166 000014DD BE[2D55] mov si, msg_cluster_count 4167 000014E0 E89F06 call print_msg 4168 000014E3 A1[EE6A] mov ax, [cluster_count] 4169 000014E6 8B16[F06A] mov dx, [cluster_count+2] 4170 000014EA BE[4355] mov si, cluster_count_str+6 4171 000014ED E85107 call bin_to_decimal 4172 ;call print_msg 4173 ;retn 4174 ; 19/10/2020 4175 000014F0 E98F06 jmp print_msg 4176 4177 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4178 ; FAT16 FORMATTING 4179 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4180 ; 08/02/2019 (Modified for -only- FAT16 CHS partitions) 4181 FAT16_hd_format: 4182 000014F3 B80607 mov ax, 0706h ; db 06h, 07h ; 'push es, pop es' 4183 000014F6 38C2 cmp dl, al ; 06h ; Big CHS partition (>= 32MB) 4184 000014F8 7403 je short FAT16_big_chs_format 4185 ;mov ax, 070Eh ; db 0Eh, 07h ; 'push cs, pop es' 4186 ;cmp dl, al ; 0Eh ; LBA partition 4187 ;je short FAT16_lba_format 4188 FAT16_chs_format: 4189 ; Partition Type: 04h, CHS (<32 MB) partition 4190 000014FA B80400 mov ax, 0004h ; db 04h, 00h ; 'add al, 0' 4191 FAT16_big_chs_format: 4192 ;FAT16_lba_format: 4193 ; Put TRDOS 386 FAT16 partition magic word 4194 ; at offset 3Eh, in TRDOS386 FAT16 boot sector. 4195 000014FD BD[5B37] mov bp, TRDOS_FAT16_hd_bs 4196 00001500 8D7E03 lea di, [bp+3] 4197 00001503 BE[BC64] mov si, bs_oem_name 4198 00001506 B90400 mov cx, 4 4199 00001509 F3A5 rep movsw 4200 0000150B 89463E mov [bp+3Eh], ax ; [loc_3E] 4201 4202 0000150E A1[6E3F] mov ax, [sectors] 4203 00001511 894618 mov [bp+18h], ax ; [BPB_SecPerTrk] 4204 00001514 A1[703F] mov ax, [heads] 4205 00001517 89461A mov [bp+1Ah], ax ; [BPB_NumHeads] 4206 0000151A A1[6C6D] mov ax, [pp_StartSector] 4207 0000151D 89461C mov [bp+1Ch], ax ; [BPB_HiddSec] 4208 00001520 A1[6E6D] mov ax, [pp_StartSector+2] 4209 00001523 89461E mov [bp+1Eh], ax ; [BPB_HiddSec+2] 4210 ;mov ax, [pp_Sectors] 4211 00001526 A1[9E6D] mov ax, [ppn_Sectors] ; 16/02/2019 4212 ;mov dx, [pp_Sectors+2] 4213 00001529 8B16[A06D] mov dx, [ppn_Sectors+2] ; 16/02/2019 4214 0000152D 21D2 and dx, dx 4215 0000152F 7505 jnz short FAT16_f_0 4216 00001531 894613 mov [bp+13h], ax ; [BPB_TotSec16] 4217 ; CX = 0 4218 ;mov [bp+20h], cx ; [BPB_TotSec32] = 0 4219 ;mov [bp+22h], cx ; [BPB_TotSec32+2] = 0 4220 00001534 EB06 jmp short FAT16_f_1 4221 FAT16_f_0: 4222 00001536 894620 mov [bp+20h], ax ; [BPB_TotSec32] 4223 ;;mov dx, [pp_Sectors+2] 4224 ;mov dx, [ppn_Sectors+2] ; 16/02/2019 4225 00001539 895622 mov [bp+22h], dx ; [BPB_TotSec32+2] 4226 ; CX = 0 4227 ;mov [bp+13h], cx ; [BPB_TotSec16] = 0 4228 FAT16_f_1: 4229 ; Sectors per cluster calculation 4230 ; (According to MS FAT32 FS specification.) 4231 0000153C B102 mov cl, 2 ; 2 sectors per cluster 4232 0000153E 09D2 or dx, dx 4233 00001540 7507 jnz short FAT16_f_2 ; >2 sectors (>16MB) 4234 00001542 3DA87F cmp ax, 32680 4235 00001545 763C jna short FAT16_f_10 ; 2 sectors, <=16MB 4236 ; > 16MB 4237 00001547 EB38 jmp short FAT16_f_9 ; 4 sectors per cluster 4238 FAT16_f_2: 4239 00001549 83FA04 cmp dx, 4 ; >= 262144 sectors ; >=128MB 4240 0000154C 7708 ja short FAT16_f_3 ; >4 sectors per cluster 4241 0000154E 7231 jb short FAT16_f_9 ; 4 sectors per cluster 4242 00001550 09C0 or ax, ax ; dx_ax = (4*65536)+0 4243 00001552 742D jz short FAT16_f_9 ; 4 sectors per cluster 4244 00001554 EB29 jmp short FAT16_f_8 ; 8 sectors per cluster 4245 FAT16_f_3: 4246 00001556 83FA08 cmp dx, 8 ; >= 524288 sectors ; >=256MB 4247 00001559 7708 ja short FAT16_f_4 ; >8 sectors per cluster 4248 0000155B 7222 jb short FAT16_f_8 ; 8 sectors per cluster 4249 0000155D 21C0 and ax, ax ; dx_ax = (8*65536)+0 4250 0000155F 741E jz short FAT16_f_8 ; 8 sectors per cluster 4251 00001561 EB1A jmp short FAT16_f_7 ; 16 sectors per cluster 4252 FAT16_f_4: 4253 00001563 83FA10 cmp dx, 16 ; >= 1048576 sectors ; >=512MB 4254 00001566 7708 ja short FAT16_f_5 ; >16 sectors per cluster 4255 00001568 7213 jb short FAT16_f_7 ; 16 sectors per cluster 4256 0000156A 21C0 and ax, ax ; dx_ax = (16*65536)+0 4257 0000156C 740F jz short FAT16_f_7 ; 16 sectors per cluster 4258 0000156E EB0B jmp short FAT16_f_6 ; 32 sectors per cluster 4259 FAT16_f_5: 4260 00001570 83FA20 cmp dx, 32 ; >= 2097152 sectors ; >=1GB 4261 00001573 7206 jb short FAT16_f_6 ; 32 sectors per cluster 4262 00001575 09C0 or ax, ax ; dx_ax = (32*65536)+0 4263 00001577 7402 jz short FAT16_f_6 ; 32 sectors per cluster 4264 ; >1GB (<=2GB) 4265 ; 64 sectors per cluster 4266 00001579 D0E1 shl cl, 1 4267 FAT16_f_6: 4268 ; 32 sectors per cluster (for <= 2GB volumes) 4269 0000157B D0E1 shl cl, 1 4270 FAT16_f_7: 4271 ; 16 sectors per cluster (for <= 1GB volumes) 4272 0000157D D0E1 shl cl, 1 4273 FAT16_f_8: 4274 ; 8 sectors per cluster (for <= 512MB volumes) 4275 0000157F D0E1 shl cl, 1 4276 FAT16_f_9: 4277 ; 4 sectors per cluster (for <= 256MB volumes) 4278 00001581 D0E1 shl cl, 1 4279 FAT16_f_10: 4280 ; 2 sectors per cluster (for <= 128MB volumes) 4281 00001583 884E0D mov [bp+0Dh], cl ; [BPB_SecPerClus] 4282 ;mov byte [bp+10h], 2 ; [BPB_NumFATs] 4283 ;mov word [bp+0Eh], 1 ; [BPB_RsvdSecCnt] 4284 ;mov word [bp+11h], 512 ; [BPB_RootEntCnt] 4285 4286 ; Calculating FAT size in sectors 4287 ; (According to MS FAT32 FS Specification, 2000) 4288 4289 ; DX_AX = partition (volume) size in sectors 4290 00001586 8B5E11 mov bx, [bp+11h] ; [BPB_RootEntCnt] = 512 4291 00001589 83C30F add bx, 15 ; bx = 527 4292 0000158C C1EB04 shr bx, 4 ; /16 = 527/16 = 32 4293 ; ((32*BX)+511)/512 4294 0000158F 891E[F26A] mov [root_dir_secs], bx 4295 00001593 035E0E add bx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 1 4296 00001596 29D8 sub ax, bx 4297 00001598 83DA00 sbb dx, 0 4298 ; TmpVal1 = DiskSize - (BPB_ResvdSecCnt + 4299 ; RootDirsectors) 4300 ;mov bx, cx ; ch = 0 4301 ;shl bx, 8 ; * 256 4302 ; 11/02/2019 4303 0000159B 88CF mov bh, cl 4304 0000159D 30DB xor bl, bl 4305 0000159F B102 mov cl, 2 ; [BPB_NumFATs] 4306 000015A1 01CB add bx, cx 4307 ; TmpVal2 = (256*BPB_SecPerClus)+BPB_NumFATs 4308 000015A3 89D9 mov cx, bx 4309 000015A5 4B dec bx ; TmpVal2-1 4310 000015A6 01D8 add ax, bx 4311 000015A8 83D200 adc dx, 0 4312 000015AB E8CFF6 call div32 4313 ; FATSz = (TmpVal1+(TmpVal2-1))/TmpVal2 4314 ; AX = FAT size in sectors 4315 ; DX = 0 4316 000015AE 894616 mov [bp+16h], ax ; [BPB_FATSz16] 4317 ; * 2 4318 000015B1 D1E0 shl ax, 1 4319 ; AX = [BPB_NumFATs] * [BPB_FATSz16] 4320 000015B3 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 1 4321 000015B6 01C1 add cx, ax 4322 ; CX = [BPB_RsvdSecCnt]+([BPB_NumFATs]*[BPB_FATSz16]) 4323 000015B8 030E[F26A] add cx, [root_dir_secs] ; + RootDirsectors 4324 000015BC 29DB sub bx, bx ; BX = 0 4325 ; BX_CX = [BPB_RsvdSecCnt]+([BPB_NumFATs]*[BPB_FATSz16]) 4326 ; + RootDirSectors 4327 000015BE 8B4613 mov ax, [bp+13h] ; [BPB_TotSec16] 4328 ;sub dx, dx 4329 ; DX = 0 4330 000015C1 21C0 and ax, ax 4331 000015C3 7506 jnz short FAT16_f_11 4332 000015C5 8B4620 mov ax, [bp+20h] ; [BPB_TotSec32] 4333 000015C8 8B5622 mov dx, [bp+22h] ; [BPB_TotSec32+2] 4334 FAT16_f_11: 4335 000015CB 29C8 sub ax, cx 4336 000015CD 19DA sbb dx, bx 4337 000015CF 890E[E66A] mov [data_start], cx 4338 000015D3 891E[E86A] mov [data_start+2], bx 4339 ; DX_AX = Data sectors 4340 000015D7 A3[EA6A] mov [data_sectors], ax 4341 000015DA 8916[EC6A] mov [data_sectors+2], dx 4342 000015DE 8A4E0D mov cl, [bp+0Dh] ; [BPB_SecPerClus] 4343 000015E1 30ED xor ch, ch 4344 000015E3 E897F6 call div32 ; DX_AX/CX 4345 ; AX = Count of clusters (rounded down) 4346 ; DX = 0 4347 000015E6 A3[EE6A] mov [cluster_count], ax 4348 000015E9 8916[F06A] mov [cluster_count+2], dx 4349 4350 000015ED 8D7E2B lea di, [bp+43] ; [BS_VolLab] 4351 000015F0 E877FD call write_volume_name 4352 000015F3 8D7627 lea si, [bp+39] ; [BS_VolID] 4353 000015F6 E8D0FD call write_volume_serial 4354 000015F9 E8E1FE call write_cluster_count 4355 4356 000015FC E851FE call write_formatting_msg 4357 000015FF B000 mov al, 0 4358 00001601 E8ADFE call write_format_percent_x 4359 4360 00001604 8B461C mov ax, [bp+1Ch] ; [BPB_HiddSec] 4361 00001607 8B561E mov dx, [bp+1Eh] ; [BPB_HiddSec+2] 4362 4363 0000160A 0106[E66A] add [data_start], ax 4364 0000160E 1116[E86A] adc [data_start+2], dx 4365 4366 ; DX_AX = FAT16 Boot Sector address 4367 00001612 BB[5B37] mov bx, TRDOS_FAT16_hd_bs 4368 ; ES:BX = Boot Sector Buffer 4369 00001615 E8CF05 call write_hd_sector 4370 00001618 0F82A9FE jc formatting_error 4371 0000161C E855FE call write_format_percent 4372 0000161F 83C001 add ax, 1 4373 00001622 83D200 adc dx, 0 4374 ; write remain part of reserved sectors 4375 00001625 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] 4376 ;sub cx, 1 4377 ;jna short FAT16_f_13 4378 ; 11/02/2019 4379 00001628 49 dec cx 4380 00001629 7418 jz short FAT16_f_13 4381 FAT16_f_12: 4382 0000162B 51 push cx 4383 0000162C BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 4384 0000162F E8B505 call write_hd_sector 4385 00001632 0F828FFE jc formatting_error 4386 00001636 E83BFE call write_format_percent 4387 00001639 83C001 add ax, 1 4388 0000163C 83D200 adc dx, 0 4389 0000163F 59 pop cx 4390 00001640 49 dec cx ; dec cl 4391 00001641 75E8 jnz short FAT16_f_12 4392 FAT16_f_13: 4393 ; write FAT sectors 4394 00001643 8B0E[E66A] mov cx, [data_start] ; lba/abs addr 4395 00001647 8B1E[E86A] mov bx, [data_start+2] ; lba/abs addr 4396 4397 ; 11/02/2019 4398 0000164B 2B0E[F26A] sub cx, [root_dir_secs] 4399 0000164F 83DB00 sbb bx, 0 4400 4401 00001652 53 push bx 4402 00001653 51 push cx 4403 00001654 BB[E668] mov bx, HDFORMAT_FATBUFFER 4404 ; ES:BX = FAT Sector Buffer 4405 00001657 8A4E15 mov cl, [bp+15h] ; [BPB_Media] 4406 0000165A B5FF mov ch, 0FFh 4407 0000165C 890F mov [bx], cx ; 0FFF8h 4408 0000165E 88E9 mov cl, ch ; cx = 0FFFFh 4409 00001660 894F02 mov [bx+2], cx 4410 ;inc cx 4411 00001663 E88105 call write_hd_sector 4412 00001666 0F825BFE jc formatting_error 4413 0000166A E807FE call write_format_percent 4414 ;mov bx, HDFORMAT_FATBUFFER 4415 0000166D B90000 mov cx, 0 4416 00001670 890F mov [bx], cx 4417 00001672 894F02 mov [bx+2], cx 4418 00001675 EB0F jmp short FAT16_f_15 4419 FAT16_f_14: 4420 00001677 53 push bx 4421 00001678 51 push cx 4422 00001679 BB[E668] mov bx, HDFORMAT_FATBUFFER 4423 0000167C E86805 call write_hd_sector 4424 0000167F 0F8242FE jc formatting_error 4425 00001683 E8EEFD call write_format_percent 4426 FAT16_f_15: 4427 00001686 59 pop cx 4428 00001687 5B pop bx 4429 00001688 83C001 add ax, 1 4430 0000168B 83D200 adc dx, 0 4431 0000168E 39DA cmp dx, bx 4432 00001690 72E5 jb short FAT16_f_14 4433 00001692 39C8 cmp ax, cx 4434 00001694 72E1 jb short FAT16_f_14 4435 4436 ; write root directory sectors 4437 ; as empty sectors 4438 00001696 8B0E[F26A] mov cx, [root_dir_secs] 4439 FAT16_f_16: 4440 0000169A 51 push cx 4441 0000169B BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 4442 0000169E E84605 call write_hd_sector 4443 000016A1 0F8220FE jc formatting_error 4444 000016A5 E8CCFD call write_format_percent 4445 000016A8 83C001 add ax, 1 4446 000016AB 83D200 adc dx, 0 4447 000016AE 59 pop cx 4448 000016AF 49 dec cx 4449 000016B0 75E8 jnz short FAT16_f_16 4450 4451 ; write DATA sectors 4452 ; (after root directory sectors) 4453 000016B2 8B0E[EA6A] mov cx, [data_sectors] 4454 000016B6 8B1E[EC6A] mov bx, [data_sectors+2] 4455 ; 11/02/2019 4456 000016BA 43 inc bx ; 0 -> 1, 1-> 2 4457 FAT16_f_17: 4458 000016BB 53 push bx 4459 000016BC 51 push cx 4460 000016BD BB[D264] mov bx, HDFORMAT_SECBUFFER 4461 000016C0 E82405 call write_hd_sector 4462 000016C3 0F82FEFD jc formatting_error 4463 000016C7 E8AAFD call write_format_percent 4464 000016CA 59 pop cx 4465 000016CB 5B pop bx 4466 000016CC 83C001 add ax, 1 4467 000016CF 83D200 adc dx, 0 4468 000016D2 49 dec cx 4469 000016D3 75E6 jnz short FAT16_f_17 4470 000016D5 4B dec bx 4471 000016D6 75E3 jnz short FAT16_f_17 4472 4473 ; If there are, format remain sectors which are 4474 ; at beyond of data clusters, with zero bytes. 4475 4476 000016D8 8B4E1C mov cx, [bp+1Ch] ; [BPB_HiddSec] 4477 000016DB 8B5E1E mov bx, [bp+1Eh] ; [BPB_HiddSec+2] 4478 4479 000016DE 837E1300 cmp word [bp+13h], 0 ; [BPB_TotSec16] 4480 000016E2 0F844AFC jz FAT16_f_18 4481 000016E6 034E13 add cx, [bp+13h] ; [BPB_TotSec16] 4482 000016E9 83D300 adc bx, 0 4483 000016EC E947FC jmp FAT16_f_19 4484 4485 FAT12_hd_format: 4486 000016EF BD[5B39] mov bp, TRDOS_FAT12_hd_bs 4487 000016F2 8D7E03 lea di, [bp+3] 4488 000016F5 BE[BC64] mov si, bs_oem_name 4489 000016F8 B90400 mov cx, 4 4490 000016FB F3A5 rep movsw 4491 000016FD A1[6E3F] mov ax, [sectors] 4492 00001700 894618 mov [bp+18h], ax ; [BPB_SecPerTrk] 4493 00001703 A1[703F] mov ax, [heads] 4494 00001706 89461A mov [bp+1Ah], ax ; [BPB_NumHeads] 4495 00001709 A1[6C6D] mov ax, [pp_StartSector] 4496 0000170C 89461C mov [bp+1Ch], ax ; [BPB_HiddSec] 4497 0000170F A1[6E6D] mov ax, [pp_StartSector+2] 4498 00001712 89461E mov [bp+1Eh], ax ; [BPB_HiddSec+2] 4499 ;mov ax, [pp_Sectors] 4500 00001715 A1[9E6D] mov ax, [ppn_Sectors] ; 16/02/2019 4501 00001718 894613 mov [bp+13h], ax ; [BPB_TotSec16] 4502 4503 ; 11/02/2019 4504 0000171B 31F6 xor si, si ; reset (FAT size fix) flag 4505 0000171D 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 1 4506 00001720 8B5611 mov dx, [bp+11h] ; [BPB_RootEntCnt] = 512 4507 00001723 83C20F add dx, 15 ; (16-1) (512-1) 4508 00001726 C1EA04 shr dx, 4 ; /16 (*32/512) 4509 ; AX = Root dir sectors 4510 ; CX = [BPB_RsvdSecCnt]+([BPB_NumFATs]*[BPB_FATSz16]) 4511 00001729 01D1 add cx, dx ; + RootDirsectors ; + 32 4512 0000172B 890E[F26A] mov [root_dir_secs], cx ; = 33 4513 4514 ; 11/02/2019 4515 ;sub ax, 33 ; 1 reserved sector, 32 root dir sectors 4516 ; .. now AX has number of data sectors 4517 ; + 2* (FAT sectors) 4518 0000172F 29C8 sub ax, cx 4519 FAT12_f_10: ; 11/02/2019 4520 ; Sectors per cluster calculation 4521 ; (According to MS FAT32 FS specification.) 4522 ;mov cx, 1 ; 1 sector per cluster 4523 00001731 B101 mov cl, 1 ; CH = 0 4524 FAT12_f_0: 4525 00001733 3DF50F cmp ax, 4085 ; Max. cluster count for FAT12 4526 00001736 7206 jb short FAT12_f_1 4527 00001738 D0E1 shl cl, 1 ; *2 4528 0000173A D1E8 shr ax, 1 ; /2 4529 0000173C EBF5 jmp short FAT12_f_0 4530 FAT12_f_1: 4531 0000173E 884E0D mov [bp+0Dh], cl ; [BPB_SecPerClus] 4532 ;mov byte [bp+10h], 2 ; [BPB_NumFATs] 4533 ;mov word [bp+0Eh], 1 ; [BPB_RsvdSecCnt] 4534 ;mov word [bp+11h], 512 ; [BPB_RootEntCnt] 4535 4536 ; Calculating FAT size in sectors 4537 ; AX = partition (volume) size in sectors 4538 ; CX = sectors per clusters 4539 00001741 31D2 xor dx, dx 4540 00001743 F7F1 div cx 4541 ; AX = cluster count (only for FAT size calc) 4542 ; DX = 0 4543 00001745 83C002 add ax, 2 ; cluster 2 to ... 4544 00001748 89C2 mov dx, ax 4545 0000174A D1E2 shl dx, 1 4546 0000174C 01D0 add ax, dx ; *3 4547 0000174E D1E8 shr ax, 1 ; /2 4548 00001750 83D000 adc ax, 0 ; +0.5 -> +1 4549 4550 ; AX = FAT bytes for 12 bit cluster numbers 4551 4552 00001753 B90002 mov cx, 512 ; [BPB_BytesPerSec] 4553 00001756 01C8 add ax, cx 4554 00001758 48 dec ax ; [BPB_BytesPerSec] - 1 4555 00001759 29D2 sub dx, dx 4556 0000175B F7F1 div cx 4557 0000175D 894616 mov [bp+16h], ax ; [BPB_FATSz16] 4558 ; * 2 4559 00001760 D1E0 shl ax, 1 4560 ; AX = [BPB_NumFATs] * [BPB_FATSz16] 4561 4562 ;mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 1 4563 ;add cx, ax 4564 ;mov ax, [bp+11h] ; [BPB_RootEntCnt] = 512 4565 ;add ax, 15 ; (16-1) (512-1) 4566 ;shr ax, 4 ; /16 (*32/512) 4567 ;; AX = Root dir sectors 4568 ;; CX = [BPB_RsvdSecCnt]+([BPB_NumFATs]*[BPB_FATSz16]) 4569 ;add cx, ax ; + RootDirsectors 4570 ;mov [root_dir_secs], ax 4571 4572 ; 11/02/2019 4573 ;mov cx, 33 4574 00001762 8B0E[F26A] mov cx, [root_dir_secs] 4575 00001766 034E0E add cx, [bp+0Eh] ; [BPB_RsvdSecCnt] ; 1 4576 ; cx = root directory sectors + reserved sectors 4577 00001769 01C1 add cx, ax 4578 ; CX = [BPB_RsvdSecCnt]+([BPB_NumFATs]*[BPB_FATSz16]) 4579 ; + RootDirSectors 4580 0000176B 8B4613 mov ax, [bp+13h] ; [BPB_TotSec16] 4581 0000176E 29C8 sub ax, cx 4582 ; AX = data sectors 4583 ; cH = 0 4584 4585 ; 11/02/2019 - fix FAT size (better method) 4586 00001770 09F6 or si, si 4587 00001772 7504 jnz short FAT12_f_9 4588 4589 00001774 89C6 mov si, ax ; ax = data sectors 4590 00001776 EBB9 jmp short FAT12_f_10 4591 4592 FAT12_f_9: 4593 00001778 31D2 xor dx, dx 4594 0000177A 890E[E66A] mov [data_start], cx 4595 0000177E 8916[E86A] mov [data_start+2], dx ; 0 4596 ; DX_AX = Data sectors 4597 00001782 A3[EA6A] mov [data_sectors], ax 4598 00001785 8916[EC6A] mov [data_sectors+2], dx ; 0 4599 00001789 8A4E0D mov cl, [bp+0Dh] ; [BPB_SecPerClus] 4600 0000178C 28ED sub ch, ch 4601 0000178E F7F1 div cx 4602 ; AX = Count of clusters (rounded down) 4603 00001790 29D2 sub dx, dx ; 0 4604 00001792 A3[EE6A] mov [cluster_count], ax 4605 00001795 8916[F06A] mov [cluster_count+2], dx ; 0 4606 4607 00001799 8D7E2B lea di, [bp+43] ; [BS_VolLab] 4608 0000179C E8CBFB call write_volume_name 4609 0000179F 8D7627 lea si, [bp+39] ; [BS_VolID] 4610 000017A2 E824FC call write_volume_serial 4611 000017A5 E835FD call write_cluster_count 4612 4613 000017A8 E8A5FC call write_formatting_msg 4614 000017AB B000 mov al, 0 4615 000017AD E801FD call write_format_percent_x 4616 4617 000017B0 8B461C mov ax, [bp+1Ch] ; [BPB_HiddSec] 4618 000017B3 8B561E mov dx, [bp+1Eh] ; [BPB_HiddSec+2] 4619 4620 000017B6 0106[E66A] add [data_start], ax 4621 000017BA 1116[E86A] adc [data_start+2], dx 4622 4623 ; DX_AX = FAT12 Boot Sector address 4624 000017BE BB[5B39] mov bx, TRDOS_FAT12_hd_bs 4625 ; ES:BX = Boot Sector Buffer 4626 000017C1 E82304 call write_hd_sector 4627 000017C4 0F82FDFC jc formatting_error 4628 000017C8 E8A9FC call write_format_percent 4629 000017CB 83C001 add ax, 1 4630 000017CE 83D200 adc dx, 0 4631 ; write remain part of reserved sectors 4632 000017D1 8B4E0E mov cx, [bp+0Eh] ; [BPB_RsvdSecCnt] 4633 ;sub cx, 1 4634 ;jna short FAT12_f_3 4635 ; 11/02/2019 4636 000017D4 49 dec cx 4637 000017D5 7418 jz short FAT12_f_3 4638 FAT12_f_2: 4639 000017D7 51 push cx 4640 000017D8 BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 4641 000017DB E80904 call write_hd_sector 4642 000017DE 0F82E3FC jc formatting_error 4643 000017E2 E88FFC call write_format_percent 4644 000017E5 83C001 add ax, 1 4645 000017E8 83D200 adc dx, 0 4646 000017EB 59 pop cx 4647 000017EC 49 dec cx ; dec cl 4648 000017ED 75E8 jnz short FAT12_f_2 4649 FAT12_f_3: 4650 ; write FAT sectors 4651 000017EF 8B0E[E66A] mov cx, [data_start] ; lba/abs addr 4652 000017F3 8B1E[E86A] mov bx, [data_start+2] ; lba/abs addr 4653 4654 ; 11/02/2019 4655 000017F7 2B0E[F26A] sub cx, [root_dir_secs] 4656 000017FB 83DB00 sbb bx, 0 4657 4658 000017FE 53 push bx 4659 000017FF 51 push cx 4660 00001800 BB[E668] mov bx, HDFORMAT_FATBUFFER 4661 ; ES:BX = FAT Sector Buffer 4662 00001803 8A4E15 mov cl, [bp+15h] ; [BPB_Media] 4663 00001806 B5FF mov ch, 0FFh 4664 00001808 890F mov [bx], cx ; 0FFF8h 4665 0000180A 886F02 mov [bx+2], ch ; 0FFFFF8h 4666 ;xor cx, cx 4667 0000180D E8D703 call write_hd_sector 4668 00001810 0F82B1FC jc formatting_error 4669 00001814 E85DFC call write_format_percent 4670 ;mov bx, HDFORMAT_FATBUFFER 4671 00001817 B90000 mov cx, 0 4672 0000181A 890F mov [bx], cx 4673 0000181C 884F02 mov [bx+2], cl 4674 0000181F EB0F jmp short FAT12_f_5 4675 FAT12_f_4: 4676 00001821 53 push bx 4677 00001822 51 push cx 4678 00001823 BB[E668] mov bx, HDFORMAT_FATBUFFER 4679 00001826 E8BE03 call write_hd_sector 4680 00001829 0F8298FC jc formatting_error 4681 0000182D E844FC call write_format_percent 4682 FAT12_f_5: 4683 00001830 59 pop cx 4684 00001831 5B pop bx 4685 00001832 83C001 add ax, 1 4686 00001835 83D200 adc dx, 0 4687 00001838 39DA cmp dx, bx 4688 0000183A 72E5 jb short FAT12_f_4 4689 0000183C 39C8 cmp ax, cx 4690 0000183E 72E1 jb short FAT12_f_4 4691 4692 ; write root directory sectors 4693 ; as empty sectors 4694 00001840 8B0E[F26A] mov cx, [root_dir_secs] 4695 FAT12_f_6: 4696 00001844 51 push cx 4697 00001845 BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 4698 00001848 E89C03 call write_hd_sector 4699 0000184B 0F8276FC jc formatting_error 4700 0000184F E822FC call write_format_percent 4701 00001852 83C001 add ax, 1 4702 00001855 83D200 adc dx, 0 4703 00001858 59 pop cx 4704 00001859 49 dec cx ; dec cl 4705 0000185A 75E8 jnz short FAT12_f_6 4706 4707 ; write DATA sectors 4708 ; (after root directory sectors) 4709 0000185C 8B0E[EA6A] mov cx, [data_sectors] 4710 ;mov bx, [data_sectors+2] 4711 ;inc bx ; 11/02/2019 4712 FAT12_f_7: 4713 ;push bx 4714 00001860 51 push cx 4715 00001861 BB[D264] mov bx, HDFORMAT_SECBUFFER 4716 00001864 E88003 call write_hd_sector 4717 00001867 0F825AFC jc formatting_error 4718 0000186B E806FC call write_format_percent 4719 0000186E 59 pop cx 4720 ;pop bx 4721 0000186F 83C001 add ax, 1 4722 00001872 83D200 adc dx, 0 4723 00001875 49 dec cx 4724 00001876 75E8 jnz short FAT12_f_7 4725 ;dec bx 4726 ;jnz short FAT12_f_7 4727 4728 ; If there are, format remain sectors which are 4729 ; at beyond of data clusters, with zero bytes. 4730 4731 00001878 8B4E1C mov cx, [bp+1Ch] ; [BPB_HiddSec] 4732 0000187B 8B5E1E mov bx, [bp+1Eh] ; [BPB_HiddSec+2] 4733 4734 0000187E 034E13 add cx, [bp+13h] ; [BPB_TotSec16] 4735 00001881 83D300 adc bx, 0 4736 00001884 E9AFFA jmp FAT12_f_8 4737 4738 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4739 ; SINGLIX FS FORMATTING 4740 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4741 4742 ; 20/03/2021 4743 ; 19/03/2021 4744 SINGLIX_hd_format: 4745 ; 06/01/2018 4746 ; 05/01/2018 4747 ; If Sectors/Track = 17, use CHS+LBA type boot sector 4748 00001887 8B1E[6E3F] mov bx, [sectors] 4749 0000188B 83FB11 cmp bx, 17 4750 0000188E 7711 ja short SINGLIX_fs1_f_1 4751 SINGLIX_fs1_f_0: 4752 00001890 BD[5B3B] mov bp, TRDOS_TRFS1_chs_bs 4753 00001893 887E2D mov [bp+45], bh ; 0 ; [bs_LBA_Ready] = 0 4754 00001896 885E2E mov [bp+46], bl ; [bs_Disk_SecPerTrack] 4755 00001899 A0[703F] mov al, [heads] 4756 0000189C 88462F mov [bp+47], al ; [bs_Disk_Heads] 4757 0000189F EB15 jmp short SINGLIX_fs1_f_3 4758 SINGLIX_fs1_f_1: 4759 ; Sectors per Track = 63 4760 ; If disk capacity >= 63*16*1024 use LBA type boot sector 4761 000018A1 8B0E[703F] mov cx, [heads] 4762 000018A5 A1[723F] mov ax, [cylinders] 4763 000018A8 F7E1 mul cx 4764 000018AA 21D2 and dx, dx 4765 000018AC 7505 jnz short SINGLIX_fs1_f_2 4766 000018AE 3D0040 cmp ax, 16384 4767 000018B1 72DD jb short SINGLIX_fs1_f_0 4768 SINGLIX_fs1_f_2: 4769 000018B3 BD[5B3D] mov bp, TRDOS_TRFS1_lba_bs 4770 ;mov byte [bp+45], 1 ; [bs_LBA_Ready] = 1 4771 SINGLIX_fs1_f_3: 4772 ;mov ax, [pp_Sectors] 4773 ;mov dx, [pp_Sectors+2] 4774 ; 16/02/2019 4775 000018B6 A1[9E6D] mov ax, [ppn_Sectors] 4776 000018B9 8B16[A06D] mov dx, [ppn_Sectors+2] 4777 000018BD 894610 mov [bp+16], ax ; [bsVolumeSize] 4778 000018C0 895612 mov [bp+18], dx ; [bsVolumeSize+2] 4779 000018C3 8B0E[6C6D] mov cx, [pp_StartSector] 4780 000018C7 8B1E[6E6D] mov bx, [pp_StartSector+2] 4781 000018CB 894E0C mov [bp+12], cx ; [bsBeginSector] 4782 000018CE 895E0E mov [bp+14], bx ; [bsBeginSector+2] 4783 000018D1 C6462C80 mov byte [bp+44], 80h ; [bsDriveNumber] ; hd0 4784 4785 ; Prepare MAT 4786 000018D5 A3[4C6B] mov [MAT_VolumeSize], ax ; Total Sectors of the FS 4787 000018D8 8916[4E6B] mov [MAT_VolumeSize+2], dx 4788 000018DC 890E[506B] mov [MAT_BeginSector], cx ; Beginning Sector of the FS 4789 000018E0 891E[526B] mov [MAT_BeginSector+2], bx 4790 ;mov cx, [bp+24] ; [bsMATLocation] 4791 ;mov bx, [bp+26] ; [bsMATLocation+2] 4792 ;add cx, 1 4793 ;adc bx, 0 4794 ; Note: (as Default) MAT Address = 1, DAT Address = 2 4795 000018E4 B90200 mov cx, 2 4796 ;xor bx, bx ; 0 4797 ;mov [bp+24], cx ; [bsMATLocation] 4798 ;mov [bp+26], bx ; [bsMATLocation+2] 4799 000018E7 890E[546B] mov [DAT_Address], cx 4800 ;mov [DAT_Address+2], bx 4801 ; DX_AX = FS1 Volume Size 4802 000018EB 83C007 add ax, 7 ; 7 bits more (for round up) 4803 000018EE 83D200 adc dx, 0 4804 000018F1 B90800 mov cx, 8 ; 1 DAT byte == 8 sectors 4805 000018F4 E886F3 call div32 4806 ; DX_AX = DAT bytes 4807 000018F7 B9FF01 mov cx, 511 4808 000018FA 01C8 add ax, cx 4809 000018FC 83D200 adc dx, 0 4810 000018FF 41 inc cx ; 512 4811 00001900 E87AF3 call div32 4812 ; DX_AX = DAT sectors (DX must be 0 for volume sizes < 128GB) 4813 00001903 A3[586B] mov [DAT_SectorCount], ax 4814 ; 19/03/2021 4815 00001906 8916[5A6B] mov [DAT_SectorCount+2], dx 4816 4817 0000190A 83C002 add ax, 2 ; BS + MAT 4818 0000190D 83D200 adc dx, 0 ; 19/03/2021 4819 00001910 89461C mov [bp+28], ax ; [bsRootDirDT] ; RDT address (offset) 4820 00001913 89561E mov [bp+30], dx ; 19/03/2021 4821 4822 ; Free Sectors = Total Sectors - (BS+MAT+DATsects+RDT+4) 4823 00001916 83C005 add ax, 5 ; DATsects + (BS+MAT+RDT+4) 4824 ; 19/03/2021 4825 00001919 83D200 adc dx, 0 4826 ;mov dx, ax ; ? ; 19/03/2021 4827 0000191C 8B0E[4C6B] mov cx, [MAT_VolumeSize] 4828 00001920 8B1E[4E6B] mov bx, [MAT_VolumeSize+2] 4829 00001924 29C1 sub cx, ax 4830 ; 19/03/2021 4831 ;sbb bx, 0 4832 00001926 19D3 sbb bx, dx 4833 4834 00001928 890E[5C6B] mov [MAT_FreeSectors], cx 4835 0000192C 891E[5E6B] mov [MAT_FreeSectors+2], bx 4836 00001930 A3[606B] mov [MAT_FirstFreeSector], ax 4837 ;mov word [MAT_FirstFreeSector+2], 0 4838 ; 19/03/2021 4839 00001933 8916[626B] mov [MAT_FirstFreeSector+2], dx 4840 4841 00001937 BF[F86A] mov di, fs_volume_name 4842 0000193A E826FA call write_fs_volume_name 4843 0000193D BE[386B] mov si, fs_volume_serial 4844 00001940 E886FA call write_volume_serial 4845 4846 ; Modify FS volume name 4847 ; (Convert 20h tail bytes to 0) 4848 00001943 B94000 mov cx, 64 4849 00001946 BE[F86A] mov si, fs_volume_name 4850 00001949 31DB xor bx, bx 4851 0000194B B0FF mov al, 0FFh 4852 modify_fs_vname_1: 4853 0000194D 88C4 mov ah, al 4854 0000194F AC lodsb 4855 00001950 3C20 cmp al, 20h 4856 00001952 7708 ja short modify_fs_vname_2 4857 00001954 80FC20 cmp ah, 20h 4858 00001957 7603 jna short modify_fs_vname_2 4859 00001959 89F3 mov bx, si 4860 0000195B 4B dec bx 4861 modify_fs_vname_2: 4862 0000195C E2EF loop modify_fs_vname_1 4863 0000195E 09DB or bx, bx 4864 00001960 740B jz short modify_fs_vname_3 4865 00001962 89DF mov di, bx 4866 00001964 B9[386B] mov cx, fs_volume_name+64 4867 00001967 29D9 sub cx, bx 4868 00001969 30C0 xor al, al 4869 0000196B F3AA rep stosb 4870 4871 modify_fs_vname_3: 4872 0000196D E8E0FA call write_formatting_msg 4873 00001970 B000 mov al, 0 4874 00001972 E83CFB call write_format_percent_x 4875 4876 00001975 8B460C mov ax, [bp+12] ; [bsBeginSector] 4877 00001978 8B560E mov dx, [bp+14] ; [bsBeginSector+2] 4878 4879 ; DX_AX = TRFS1 Boot Sector address 4880 0000197B 89EB mov bx, bp 4881 ; ES:BX = Boot Sector Buffer 4882 0000197D E86702 call write_hd_sector 4883 00001980 0F8241FB jc formatting_error 4884 4885 00001984 83C001 add ax, 1 4886 00001987 83D200 adc dx, 0 4887 4888 ; DX_AX = MAT (DAT header) sector address 4889 0000198A BB[486B] mov bx, FS_MAT_Buffer 4890 ; 16/02/2019 4891 0000198D C7074D41 mov word [bx],'MA' 4892 00001991 C6470254 mov byte [bx+2],'T' 4893 00001995 E84F02 call write_hd_sector 4894 00001998 0F8229FB jc formatting_error 4895 0000199C E819FB call write_fs_format_percent 4896 4897 ; Calculate DAT bits 4898 ; NOTE: 4096 bits per DAT sector 4899 0000199F A1[606B] mov ax, [MAT_FirstFreeSector] 4900 ; 19/03/2021 4901 ;xor dx, dx 4902 000019A2 8B16[626B] mov dx, [MAT_FirstFreeSector+2] 4903 000019A6 52 push dx 4904 000019A7 50 push ax 4905 000019A8 B90010 mov cx, 4096 4906 000019AB E8CFF2 call div32 4907 000019AE 891E[3C6B] mov [DAT_FFBit], bx 4908 000019B2 A3[3E6B] mov [DAT_FFSector], ax 4909 ; 19/03/2021 4910 000019B5 8916[406B] mov [DAT_FFSector+2], dx 4911 000019B9 58 pop ax 4912 000019BA 5A pop dx 4913 000019BB 83E801 sub ax, 1 4914 000019BE 83DA00 sbb dx, 0 4915 000019C1 0306[5C6B] add ax, [MAT_FreeSectors] 4916 000019C5 1316[5E6B] adc dx, [MAT_FreeSectors+2] 4917 000019C9 E8B1F2 call div32 4918 000019CC 891E[426B] mov [DAT_LFBit], bx 4919 000019D0 A3[446B] mov [DAT_LFSector], ax 4920 ; 19/03/2021 4921 000019D3 8916[466B] mov [DAT_LFSector+2], dx 4922 ; 4923 000019D7 31F6 xor si, si ; 0 4924 ; 19/03/2021 4925 000019D9 8936[4671] mov [tempword], si ; 0 4926 SINGLIX_fs1_f_4: 4927 ; calculate free bits for current DAT sector 4928 ; (to be written) 4929 000019DD BF[646B] mov di, FS_DAT_Buffer 4930 4931 ; 19/03/2021 4932 000019E0 A1[4671] mov ax, [tempword] 4933 000019E3 3B06[406B] cmp ax, [DAT_FFSector+2] 4934 000019E7 7260 jb short SINGLIX_fs1_f_9 4935 000019E9 7708 ja short SINGLIX_fs1_f_13 4936 4937 000019EB 3B36[3E6B] cmp si, [DAT_FFSector] 4938 000019EF 743A je short SINGLIX_fs1_f_7 4939 000019F1 7256 jb short SINGLIX_fs1_f_9 4940 SINGLIX_fs1_f_13: 4941 ; 19/03/2021 4942 000019F3 3B06[466B] cmp ax, [DAT_LFSector+2] 4943 000019F7 722D jb short SINGLIX_fs1_f_6 4944 000019F9 774E ja short SINGLIX_fs1_f_9 4945 4946 000019FB 3B36[446B] cmp si, [DAT_LFSector] 4947 000019FF 7225 jb short SINGLIX_fs1_f_6 4948 00001A01 7746 ja short SINGLIX_fs1_f_9 4949 4950 ;mov bx, [DAT_LFBit] 4951 ;;mov al, 0FFh 4952 ;mov ah, bl 4953 ;shr bx, 3 ; bit count to byte count 4954 ;jz short SINGLIX_fs1_f_5 4955 ; 20/03/2021 4956 00001A03 8B0E[426B] mov cx, [DAT_LFBit] 4957 00001A07 88CC mov ah, cl 4958 00001A09 C1E903 shr cx, 3 ; bit count to byte count 4959 00001A0C 7404 jz short SINGLIX_fs1_f_5 4960 ;Example: 4961 ;last free sector = 47 -> byte 5, bit 7 4962 ;last free sector = 48 -> byte 6, bit 0 4963 ; (also previous sectors are free sectors) 4964 00001A0E B0FF mov al, 0FFh ; 20/03/2021 4965 ;mov cx, bx 4966 00001A10 F3AA rep stosb 4967 ; 20/03/2021 4968 ;mov di, FS_DAT_Buffer 4969 ;add di, bx 4970 SINGLIX_fs1_f_5: 4971 00001A12 80E407 and ah, 7 4972 ;mov cl, ah 4973 ;shl al, cl 4974 ;not al 4975 ; 20/03/2021 4976 00001A15 30C0 xor al, al 4977 SINGLIX_fs1_f_15: 4978 ; 20/03/2021 4979 ; 0 -> 00000001b (last free bit is bit 0) 4980 ; 1 -> 00000011b (last free bit is bit 1) 4981 ; 7 -> 11111111b (last free bit is bit 7) 4982 00001A17 0C01 or al, 1 4983 00001A19 08E4 or ah, ah 4984 00001A1B 7406 jz short SINGLIX_fs1_f_16 4985 00001A1D D0E0 shl al, 1 4986 00001A1F FECC dec ah 4987 00001A21 EBF4 jmp short SINGLIX_fs1_f_15 4988 SINGLIX_fs1_f_16: 4989 00001A23 AA stosb 4990 ;mov cx, 511 4991 ;sub cx, bx 4992 ;jna short SINGLIX_fs1_f_9 4993 ;mov al, 0 ; out of volume bits (=0) 4994 ;rep stosb 4995 00001A24 EB23 jmp short SINGLIX_fs1_f_9 4996 SINGLIX_fs1_f_6: 4997 00001A26 B90002 mov cx, 512 4998 00001A29 EB1A jmp short SINGLIX_fs1_f_8 4999 SINGLIX_fs1_f_7: 5000 ; 20/03/2021 5001 ;Example: 5002 ;first free sector = 23 -> byte 2, bit 7 5003 ;first free sector = 24 -> byte 3, bit 0 5004 ; (previous sectors are allocated sectors) 5005 00001A2B 8B1E[3C6B] mov bx, [DAT_FFBit] 5006 00001A2F 88D9 mov cl, bl 5007 00001A31 80E107 and cl, 7 5008 00001A34 C1EB03 shr bx, 3 ; from bits to bytes 5009 00001A37 01DF add di, bx 5010 00001A39 B0FF mov al, 0FFh 5011 00001A3B D2E0 shl al, cl 5012 00001A3D AA stosb 5013 00001A3E B9FF01 mov cx, 511 5014 00001A41 29D9 sub cx, bx 5015 00001A43 7604 jna short SINGLIX_fs1_f_9 5016 SINGLIX_fs1_f_8: 5017 00001A45 B0FF mov al, 0FFh ; Free sector bits (=1) 5018 00001A47 F3AA rep stosb 5019 SINGLIX_fs1_f_9: 5020 00001A49 A1[506B] mov ax, [MAT_BeginSector] 5021 00001A4C 8B16[526B] mov dx, [MAT_BeginSector+2] 5022 ;add ax, [DAT_Address] ; = 2 5023 ;adc dx, [DAT_Address+2] 5024 00001A50 83C002 add ax, 2 5025 00001A53 83D200 adc dx, 0 5026 00001A56 01F0 add ax, si 5027 00001A58 83D200 adc dx, 0 5028 ; Write DAT sector(s) 5029 ; DX_AX = Disk Allocation Table sector address 5030 00001A5B BB[646B] mov bx, FS_DAT_Buffer 5031 00001A5E E88601 call write_hd_sector 5032 00001A61 0F8260FA jc formatting_error 5033 00001A65 E850FA call write_fs_format_percent 5034 ; Clear DAT buffer again (for next stage) 5035 00001A68 B90001 mov cx, 256 5036 00001A6B BF[646B] mov di, FS_DAT_Buffer 5037 00001A6E 29C0 sub ax, ax 5038 00001A70 F3AB rep stosw 5039 5040 00001A72 46 inc si 5041 ; 19/03/2021 5042 00001A73 7504 jnz short SINGLIX_fs1_f_14 5043 5044 ; 19/03/2021 5045 00001A75 FF06[4671] inc word [tempword] 5046 SINGLIX_fs1_f_14: 5047 00001A79 A1[4671] mov ax, [tempword] 5048 00001A7C 3B06[5A6B] cmp ax, [DAT_SectorCount+2] 5049 00001A80 0F8259FF jb SINGLIX_fs1_f_4 5050 5051 00001A84 3B36[586B] cmp si, [DAT_SectorCount] 5052 ;jna SINGLIX_fs1_f_4 5053 ; 19/03/2021 (bugfix) 5054 00001A88 0F8251FF jb SINGLIX_fs1_f_4 5055 5056 ; ;;; 5057 5058 ; DAT sectors has been written.. 5059 ; Now, Root Directory Description Table is in order 5060 5061 00001A8C BF[646B] mov di, FS_RDT_Buffer 5062 00001A8F B84444 mov ax, 'DD' 5063 00001A92 AB stosw 5064 00001A93 30E4 xor ah, ah 5065 00001A95 B054 mov al, 'T' 5066 00001A97 AB stosw 5067 00001A98 B80002 mov ax, 512 ; Sector size (Bytes per sector) 5068 00001A9B AB stosw 5069 00001A9C 31C0 xor ax, ax ; RDT sequence number (= 0, section 1) 5070 00001A9E AB stosw 5071 ; RDT address 5072 00001A9F A1[586B] mov ax, [DAT_SectorCount] 5073 00001AA2 8B16[5A6B] mov dx, [DAT_SectorCount+2] 5074 00001AA6 83C002 add ax, 2 ; BS + MAT 5075 00001AA9 83D200 adc dx, 0 5076 00001AAC AB stosw 5077 00001AAD 89D0 mov ax, dx 5078 00001AAF AB stosw 5079 00001AB0 29C0 sub ax, ax ; Next RDT number 5080 00001AB2 AB stosw 5081 00001AB3 AB stosw 5082 ;mov ax, 4 ; Sector count of this section 5083 ; ; (4*512)/4 = 512 root dir entries 5084 ; 20/03/2021 5085 00001AB4 B004 mov al, 4 5086 00001AB6 AB stosw 5087 00001AB7 30C0 xor al, al 5088 00001AB9 AB stosw 5089 ; Volume beginning sector 5090 00001ABA 8B460C mov ax, [bp+12] ; [bsBeginSector] 5091 00001ABD 8B560E mov dx, [bp+14] ; [bsBeginSector+2] 5092 00001AC0 AB stosw 5093 00001AC1 89D0 mov ax, dx 5094 00001AC3 AB stosw 5095 00001AC4 31C0 xor ax, ax 5096 00001AC6 48 dec ax ; 0FFFFh 5097 ; Parent Dir Serial (= FFFFFFFFh for root dir) 5098 00001AC7 AB stosw 5099 00001AC8 AB stosw 5100 5101 set_fs_volume_serial_number: 5102 00001AC9 BE[386B] mov si, fs_volume_serial 5103 00001ACC A5 movsw 5104 00001ACD A5 movsw 5105 5106 00001ACE 29C0 sub ax, ax 5107 ;stosb ; sub directory level = 0 5108 ;stosb ; 0, reserved 5109 00001AD0 AB stosw 5110 00001AD1 B004 mov al, 00000100b ; (DOS) System attribute 5111 00001AD3 AA stosb ; (DOS) Basic attributes 5112 00001AD4 28C0 sub al, al ; Extended attributes (0 for TRDOS 386) 5113 00001AD6 AA stosb 5114 ; 20/03/2021 5115 ;sub ax, ax ; reserved (8) bytes for TR-MULTIX 5116 00001AD7 AB stosw 5117 00001AD8 AB stosw 5118 00001AD9 AB stosw 5119 00001ADA AB stosw 5120 00001ADB B85254 mov ax, 'RT' ; TRFS Root directory signature 5121 00001ADE AB stosw 5122 00001ADF 31C0 xor ax, ax ; Country (language, date, text format) 5123 ; (0 = Default, 1 = USA, 90 = Turkiye) 5124 ;stosb 5125 ;stosb ; Time Zone (0 = GMT = default ; -11 to +12) 5126 00001AE1 AB stosw 5127 5128 00001AE2 89FE mov si, di 5129 ; get the date (from RTC) 5130 00001AE4 B404 mov ah, 4 5131 00001AE6 CD1A int 1Ah 5132 ; Creating Date (of root directory) 5133 00001AE8 86E9 xchg ch, cl ; 07/01/2018 5134 00001AEA 89C8 mov ax, cx ; cl = century (BCD), ch = year (BCD) 5135 00001AEC AB stosw 5136 00001AED 88F0 mov al, dh ; month (BCD) 5137 00001AEF AA stosb 5138 00001AF0 88D0 mov al, dl ; day (BCD) 5139 00001AF2 AA stosb 5140 ; get the time (from RTC) 5141 00001AF3 B402 mov ah, 2 5142 00001AF5 CD1A int 1Ah 5143 ; Creating Time (of root directory) 5144 00001AF7 86CD xchg cl, ch ; ch = hour (BCD), cl = minute (BSD) 5145 00001AF9 89C8 mov ax, cx ; al = hour, ah = minute 5146 00001AFB AB stosw 5147 00001AFC 88F0 mov al, dh ; seconds (BCD) 5148 00001AFE AA stosb 5149 00001AFF 88D0 mov al, dl ; daylight savings time option 5150 00001B01 AA stosb 5151 ; Set Last Modification Date&Time 5152 00001B02 B90400 mov cx, 4 5153 00001B05 F3A5 rep movsw ; copy creating date&time values to 5154 ; last modification date time values 5155 ; (last modif date&time = creating date&time) 5156 5157 set_fs_volume_name: 5158 00001B07 BE[F86A] mov si, fs_volume_name 5159 00001B0A B120 mov cl, 32 5160 00001B0C F3A5 rep movsw 5161 5162 ; Fill remain bytes (of this RDT) with zero 5163 00001B0E B9C000 mov cx, (128+256)/2 5164 00001B11 31C0 xor ax, ax 5165 00001B13 F3AB rep stosw 5166 5167 ; RDT is ready here... 5168 5169 00001B15 8B461C mov ax, [bp+28] ; [bsRootDirDT] 5170 00001B18 8B561E mov dx, [bp+30] ; [bsRootDirDT+2] 5171 ; 20/03/2021 5172 ;xor dx, dx 5173 00001B1B 03460C add ax, [bp+12] ; [bsBeginSector] 5174 00001B1E 13560E adc dx, [bp+14] ; [bsBeginSector+2] 5175 5176 ; Write RDT sector 5177 ; DX_AX = Root Directory Description Table address 5178 00001B21 BB[646B] mov bx, FS_RDT_Buffer 5179 00001B24 E8C000 call write_hd_sector 5180 00001B27 0F829AF9 jc formatting_error 5181 00001B2B E88AF9 call write_fs_format_percent 5182 5183 00001B2E 83C001 add ax, 1 5184 00001B31 83D200 adc dx, 0 5185 5186 ; write root directory data sectors 5187 00001B34 B90400 mov cx, 4 5188 5189 SINGLIX_fs1_f_10: 5190 00001B37 51 push cx 5191 ; Write root directory sector(s) 5192 ; DX_AX = Root Directory Sector address 5193 00001B38 BB[E668] mov bx, HDFORMAT_EMPTY_BUFF 5194 00001B3B E8A900 call write_hd_sector 5195 00001B3E 0F8283F9 jc formatting_error 5196 00001B42 E873F9 call write_fs_format_percent 5197 00001B45 83C001 add ax, 1 5198 00001B48 83D200 adc dx, 0 5199 00001B4B 59 pop cx 5200 00001B4C FEC9 dec cl 5201 00001B4E 75E7 jnz short SINGLIX_fs1_f_10 5202 5203 ; Fill remain sectors with 'F6h' bytes 5204 00001B50 8B4E10 mov cx, [bp+16] ; [bsVolumeSize] 5205 00001B53 8B5E12 mov bx, [bp+18] ; [bsVolumeSize+2] 5206 00001B56 034E0C add cx, [bp+12] ; [bsBeginSector] 5207 00001B59 135E0E adc bx, [bp+14] ; [bsBeginSector+2] 5208 5209 ; write DATA sectors 5210 ; (after root directory sectors) 5211 SINGLIX_fs1_f_11: 5212 00001B5C 53 push bx 5213 00001B5D 51 push cx 5214 00001B5E BB[D264] mov bx, HDFORMAT_SECBUFFER 5215 00001B61 E88300 call write_hd_sector 5216 00001B64 0F825DF9 jc formatting_error 5217 00001B68 E809F9 call write_format_percent 5218 00001B6B 59 pop cx 5219 00001B6C 5B pop bx 5220 00001B6D 83C001 add ax, 1 5221 00001B70 83D200 adc dx, 0 5222 00001B73 39DA cmp dx, bx 5223 00001B75 72E5 jb short SINGLIX_fs1_f_11 5224 00001B77 0F87DDF7 ja SINGLIX_fs1_f_12 5225 00001B7B 39C8 cmp ax, cx 5226 00001B7D 72DD jb short SINGLIX_fs1_f_11 5227 00001B7F E9D6F7 jmp SINGLIX_fs1_f_12 5228 5229 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5230 ; print messages 5231 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5232 5233 print_msg: 5234 5235 print_msg_LOOP: 5236 00001B82 AC lodsb ; Load byte at DS:SI to AL 5237 00001B83 20C0 and al, al 5238 00001B85 7409 jz short print_msg_OK 5239 00001B87 B40E mov ah, 0Eh 5240 00001B89 BB0700 mov bx, 07h 5241 00001B8C CD10 int 10h ; BIOS Service func ( ah ) = 0Eh 5242 ; Write char as TTY 5243 ; AL-char BH-page BL-color 5244 00001B8E EBF2 jmp short print_msg_LOOP 5245 5246 print_msg_OK: 5247 00001B90 C3 retn 5248 5249 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5250 ; reading a block (sector) on hard disk 5251 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5252 ; 17/10/2020 5253 5254 read_hd_sector: 5255 5256 ; INPUT -> DX_AX = Logical Block Address 5257 ; ES:BX = Sector Buffer 5258 ; OUTPUT -> 5259 ; cf = 0 -> DX_AX = Logical Block Adress 5260 ; ES:BX = Sector Buffer 5261 ; cf = 1 -> AH = Error Number 5262 5263 00001B91 3B16[E068] cmp dx, [chs_limit+2] 5264 00001B95 770F ja short read_lba_sector 5265 00001B97 7206 jb short read_chs_sector 5266 00001B99 3B06[DE68] cmp ax, [chs_limit] 5267 00001B9D 7707 ja short read_lba_sector 5268 ;jmp short read_chs_sector 5269 5270 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5271 ; reading a block (sector) by using CHS read (ROMBIOS) function 5272 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5273 ; 17/10/2020 5274 5275 read_chs_sector: 5276 ; hdformat.s (25/09/2020) 5277 00001B9F C606[D868]02 mov byte [rw], 2 ; read 5278 00001BA4 EB54 jmp short chs_rw 5279 5280 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5281 ; reading a block (sector) by using LBA read (ROMBIOS) function 5282 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5283 ; 17/10/2020 5284 5285 read_lba_sector: 5286 ; hdformat.s (25/09/2020) 5287 00001BA6 C606[D868]42 mov byte [rw], 42h 5288 00001BAB EB05 jmp short lba_rw 5289 5290 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5291 ; writing a block (sector) by using LBA write (ROMBIOS) function 5292 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5293 ; 17/10/2020 5294 5295 ; 18/10/2020 5296 write_lba_sector: 5297 ; hdformat.s (25/09/2020) 5298 00001BAD C606[D868]43 mov byte [rw], 43h 5299 ;jmp short lba_rw 5300 lba_rw: 5301 ;mov di, 5 5302 ; 18/10/2020 5303 00001BB2 C606[D968]05 mov byte [rcnt], 5 ; Retry count 5304 lba_rw_1: 5305 ;pusha ; db 60h 5306 00001BB7 60 db 60h 5307 ;push 0 ; db 6Ah, 00h 5308 00001BB8 6A00 db 6Ah, 0 5309 ;push 0 ; db 6Ah, 00h 5310 00001BBA 6A00 db 6Ah, 0 5311 00001BBC 52 push dx 5312 00001BBD 50 push ax 5313 00001BBE 06 push es 5314 00001BBF 53 push bx 5315 ;push 1 ; db 6Ah, 01h 5316 00001BC0 6A01 db 6Ah, 01h 5317 ;push 10h ; db 6Ah, 10h 5318 00001BC2 6A10 db 6Ah, 10h 5319 5320 00001BC4 89E6 mov si, sp 5321 00001BC6 8A16[D668] mov dl, [DrvNum] 5322 00001BCA 30C0 xor al, al ; verify off 5323 lba_rw_2: 5324 00001BCC 8A26[D868] mov ah, [rw] ; 42h = LBA read, 43h = LBA write 5325 ;xor al, al ; verify off 5326 00001BD0 CD13 int 13h 5327 5328 ;mov [error], ah 5329 00001BD2 7310 jnc short lba_rw_3 5330 5331 ;dec di 5332 ; 18/10/2020 5333 00001BD4 FE0E[D968] dec byte [rcnt] 5334 00001BD8 740A jz short lba_rw_3 5335 5336 00001BDA 30E4 xor ah, ah 5337 ;mov dl, [DrvNum] 5338 00001BDC CD13 int 13h ; BIOS Service func (ah) = 0 5339 ; Reset disk system 5340 5341 ;mov word [si+2], 1 ; set r/w count to 1 again 5342 00001BDE C6440201 mov byte [si+2], 1 5343 5344 00001BE2 EBE8 jmp short lba_rw_2 5345 5346 lba_rw_3: 5347 ;popa 5348 00001BE4 61 db 61h 5349 ;popa 5350 00001BE5 61 db 61h 5351 00001BE6 C3 retn 5352 5353 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5354 ; writing a block (sector) on hard disk 5355 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5356 ; 17/10/2020 5357 5358 write_hd_sector: 5359 5360 ; INPUT -> DX_AX = Logical Block Address 5361 ; ES:BX = Sector Buffer 5362 ; OUTPUT -> 5363 ; cf = 0 -> DX_AX = Logical Block Adress 5364 ; ES:BX = Sector Buffer 5365 ; cf = 1 -> AH = Error Number 5366 5367 00001BE7 3B16[E068] cmp dx, [chs_limit+2] 5368 00001BEB 77C0 ja short write_lba_sector 5369 00001BED 7206 jb short write_chs_sector 5370 00001BEF 3B06[DE68] cmp ax, [chs_limit] 5371 00001BF3 77B8 ja short write_lba_sector 5372 ;jmp short write_chs_sector 5373 5374 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5375 ; writing a block (sector) by using CHS write (ROMBIOS) function 5376 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5377 ; 17/10/2020 5378 5379 ; 18/10/2020 5380 write_chs_sector: 5381 ; hdformat.s (25/09/2020) 5382 00001BF5 C606[D868]03 mov byte [rw], 3 ; write 5383 ;jmp short chs_rw 5384 chs_rw: 5385 00001BFA 56 push si 5386 00001BFB 51 push cx 5387 chs_rw_0: 5388 ;mov di, 5 5389 ; 18/10/2020 5390 00001BFC C606[D968]05 mov byte [rcnt], 5 ; Retry count 5391 chs_rw_1: 5392 00001C01 52 push dx ; Linear sector # 5393 00001C02 50 push ax ; DX_AX = Linear address (sectors) 5394 00001C03 8B0E[6E3F] mov cx, [sectors] 5395 00001C07 53 push bx 5396 5397 00001C08 E872F0 call div32 ; 32 bit divide 5398 5399 00001C0B 89D9 mov cx, bx ; Sector (zero based) 5400 00001C0D 41 inc cx ; To make it 1 based 5401 00001C0E 51 push cx 5402 00001C0F 8B0E[703F] mov cx, [heads] 5403 00001C13 E867F0 call div32 ; Convert track to head & cyl 5404 00001C16 88DE mov dh, bl ; BX = Head (max. FFh) 5405 00001C18 59 pop cx ; AX=Cyl, DH=Head, CX=Sector 5406 00001C19 5B pop bx ; ES:BX = Buffer 5407 5408 00001C1A 8A16[D668] mov dl, [DrvNum] 5409 00001C1E 88C5 mov ch, al 5410 00001C20 D0CC ror ah, 1 ; Rotate right 5411 00001C22 D0CC ror ah, 1 5412 00001C24 08E1 or cl, ah 5413 chs_rw_2: 5414 00001C26 8A26[D868] mov ah, [rw] ; 02h = read, 03h = write 5415 00001C2A B001 mov al, 01h 5416 00001C2C CD13 int 13h ; BIOS Service func (ah) = 2/3 5417 ; Read/Write disk sectors 5418 ; AL-sec num CH-track CL-sec 5419 ; DH-head DL-drive ES:BX-buffer 5420 ; CF-flag AH-status AL-sectors written/read 5421 ; If CF = 1 then AH = Error code (>0) 5422 5423 00001C2E 730C jnc short chs_rw_3 5424 ;dec di 5425 00001C30 FE0E[D968] dec byte [rcnt] ; 18/10/2020 5426 00001C34 7406 jz short chs_rw_3 5427 5428 00001C36 30E4 xor ah, ah 5429 ;mov dl, [DrvNum] 5430 00001C38 CD13 int 13h ; BIOS Service func (ah) = 0 5431 ; Reset disk system 5432 00001C3A EBEA jmp short chs_rw_2 5433 5434 chs_rw_3: 5435 00001C3C 58 pop ax 5436 00001C3D 5A pop dx 5437 00001C3E 59 pop cx 5438 00001C3F 5E pop si 5439 00001C40 C3 retn 5440 5441 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5442 ; convert byte to decimal number 5443 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5444 5445 bin_to_decimal: 5446 ; INPUT: DS:SI = Target location 5447 ; DX_AX = Binary Number (Integer) 5448 ; OUTPUT: Decimal char at DS:SI 5449 ; SI decremented after every division 5450 ; till AX<10. 5451 ; CX, DX, BX will be changed. 5452 ; 5453 00001C41 B90A00 mov cx, 10 5454 btd_0: 5455 ; DX_AX = Dividend 5456 ; CX = Divisor 5457 00001C44 E836F0 call div32 5458 ; DX_AX = Quotient 5459 ; BX = remainder 5460 00001C47 80C330 add bl, '0' 5461 00001C4A 881C mov [si], bl 5462 00001C4C 21D2 and dx, dx 5463 00001C4E 7403 jz short btd_2 5464 btd_1: 5465 00001C50 4E dec si 5466 00001C51 EBF1 jmp short btd_0 5467 btd_2: 5468 00001C53 09C0 or ax, ax 5469 00001C55 75F9 jnz short btd_1 5470 5471 00001C57 C3 retn 5472 5473 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5474 ; convert byte to hexadecimal number 5475 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5476 5477 byte_to_hex: ; 04/02/2019 5478 bin_to_hex: 5479 ; INPUT -> 5480 ; AL = byte (binary number) 5481 ; OUTPUT -> 5482 ; AX = hexadecimal string 5483 ; 5484 00001C58 53 push bx 5485 00001C59 31DB xor bx, bx 5486 00001C5B 88C3 mov bl, al 5487 00001C5D C0EB04 shr bl, 4 5488 00001C60 8A9F[5C3F] mov bl, [bx+hexchrs] 5489 00001C64 86D8 xchg bl, al 5490 00001C66 80E30F and bl, 0Fh 5491 00001C69 8AA7[5C3F] mov ah, [bx+hexchrs] 5492 00001C6D 5B pop bx 5493 00001C6E C3 retn 5494 5495 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5496 ; read & write characters 5497 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5498 5499 rw_char: 5500 ; OUTPUT -> DS:SI = Entered String (ASCIIZ) 5501 00001C6F BE[BC54] mov si, StrVolumeName 5502 00001C72 BB0700 mov bx, 7 5503 00001C75 B403 mov ah, 3 5504 00001C77 CD10 int 10h 5505 00001C79 8916[A354] mov [Cursor_Pos], dx 5506 read_next_char: 5507 00001C7D 30E4 xor ah, ah 5508 00001C7F CD16 int 16h 5509 00001C81 20C0 and al, al 5510 00001C83 7439 jz short loc_arrow 5511 00001C85 3CE0 cmp al, 0E0h 5512 00001C87 7435 je short loc_arrow 5513 00001C89 3C08 cmp al, 8 5514 00001C8B 753D jne short char_return 5515 loc_back: 5516 00001C8D B403 mov ah, 3 5517 00001C8F CD10 int 10h 5518 00001C91 3A16[A354] cmp dl, byte [Cursor_Pos] 5519 00001C95 761F jna short loc_beep 5520 prev_column: 5521 00001C97 FECA dec dl 5522 set_cursor_pos: 5523 00001C99 B402 mov ah, 2 5524 00001C9B CD10 int 10h 5525 00001C9D 88D3 mov bl, dl 5526 00001C9F 2A1E[A354] sub bl, byte [Cursor_Pos] 5527 00001CA3 B90100 mov cx, 1 5528 00001CA6 B409 mov ah, 9 5529 00001CA8 B020 mov al, 20h 5530 00001CAA 8800 mov [si+bx], al 5531 loc_write_it: 5532 00001CAC B307 mov bl, 7 5533 00001CAE CD10 int 10h 5534 00001CB0 8B16[A354] mov dx, [Cursor_Pos] 5535 00001CB4 EBC7 jmp short read_next_char 5536 loc_beep: 5537 00001CB6 B40E mov ah, 0Eh 5538 00001CB8 B007 mov al, 7 5539 00001CBA CD10 int 10h 5540 00001CBC EBBF jmp short read_next_char 5541 loc_arrow: 5542 00001CBE 80FC4B cmp ah, 4Bh 5543 00001CC1 74CA je short loc_back 5544 00001CC3 80FC53 cmp ah, 53h 5545 00001CC6 74C5 je short loc_back 5546 00001CC8 EBB3 jmp short read_next_char 5547 char_return: 5548 00001CCA B403 mov ah, 3 5549 00001CCC CD10 int 10h 5550 check_char_type: 5551 00001CCE 3C20 cmp al, 20h 5552 00001CD0 7229 jb short loc_escape 5553 00001CD2 88D4 mov ah, dl 5554 00001CD4 2A26[A354] sub ah, byte [Cursor_Pos] 5555 ;cmp ah, 10 5556 ;ja short loc_beep 5557 00001CD8 3A26[BB64] cmp ah, [vname_length] ; 05/01/2018 5558 00001CDC 73D8 jnb short loc_beep 5559 00001CDE 3C7A cmp al, 'z' 5560 00001CE0 779B ja short read_next_char 5561 00001CE2 3C61 cmp al, 'a' 5562 00001CE4 7202 jb short pass_capitalize 5563 00001CE6 24DF and al, 0DFh 5564 pass_capitalize: 5565 00001CE8 88E3 mov bl, ah 5566 00001CEA 30E4 xor ah, ah 5567 00001CEC 8900 mov [si+bx], ax 5568 00001CEE B307 mov bl, 7 5569 00001CF0 B40E mov ah, 0Eh 5570 00001CF2 CD10 int 10h 5571 00001CF4 EB87 jmp short read_next_char 5572 pass_escape: 5573 00001CF6 3C0D cmp al, 0Dh ; 13 ; ENTER 5574 00001CF8 7583 jne short read_next_char 5575 ;mov ah, 0Eh 5576 ;int 10h 5577 ;mov al, 0Ah 5578 ;int 10h 5579 00001CFA C3 retn 5580 loc_escape: 5581 00001CFB 3C1B cmp al, 1Bh ; 27 ; ESC 5582 00001CFD 75F7 jne short pass_escape 5583 00001CFF F9 stc 5584 00001D00 C3 retn 5585 5586 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5587 ; display CHS takle 5588 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5589 5590 display_chs_table: 5591 5592 ; 16/10/2020 5593 ; 12/10/2020 (fdisk3) 5594 ; 11/02/2019 (hdimage) 5595 5596 00001D01 06 push es 5597 00001D02 BF00B8 mov di, 0B800h 5598 00001D05 8EC7 mov es, di 5599 00001D07 BFA000 mov di, 160 ; row 1 5600 00001D0A B407 mov ah, 07h 5601 00001D0C B044 mov al, 'D' 5602 00001D0E AB stosw 5603 00001D0F B069 mov al, 'i' 5604 00001D11 AB stosw 5605 00001D12 B073 mov al, 's' 5606 00001D14 AB stosw 5607 00001D15 B06B mov al, 'k' 5608 00001D17 AB stosw 5609 00001D18 B03A mov al, ':' 5610 00001D1A AB stosw 5611 00001D1B B020 mov al, ' ' 5612 00001D1D AB stosw 5613 00001D1E B068 mov al, 'h' 5614 00001D20 AB stosw 5615 00001D21 B064 mov al, 'd' 5616 00001D23 AB stosw 5617 00001D24 A0[D668] mov al, [DrvNum] 5618 00001D27 2C50 sub al, 80h-'0' 5619 00001D29 AB stosw 5620 00001D2A BF4001 mov di, 320 ; row 2 5621 00001D2D B95000 mov cx, 80 5622 00001D30 B82007 mov ax, 0720h 5623 00001D33 F3AB rep stosw 5624 00001D35 B150 mov cl, 80 ; row 3 5625 00001D37 B02D mov al, "-" 5626 00001D39 F3AB rep stosw 5627 ;mov cl, 19 5628 00001D3B B112 mov cl, 18 ; 16/10/2020 ; row 4 5629 00001D3D B020 mov al, 20h 5630 00001D3F F3AB rep stosw 5631 00001D41 B043 mov al, 'C' 5632 00001D43 AB stosw 5633 00001D44 B079 mov al, 'y' 5634 00001D46 AB stosw 5635 00001D47 B06C mov al, 'l' 5636 00001D49 AB stosw 5637 00001D4A B069 mov al, 'i' 5638 00001D4C AB stosw 5639 00001D4D B06E mov al, 'n' 5640 00001D4F AB stosw 5641 00001D50 B064 mov al, 'd' 5642 00001D52 AB stosw 5643 00001D53 B065 mov al, 'e' 5644 00001D55 AB stosw 5645 00001D56 B072 mov al, 'r' 5646 00001D58 AB stosw 5647 00001D59 B073 mov al, 's' 5648 00001D5B AB stosw 5649 00001D5C B03A mov al, ':' 5650 00001D5E AB stosw 5651 00001D5F B020 mov al, 20h 5652 00001D61 AB stosw 5653 ;mov [cylnumpos], di 5654 00001D62 A1[723F] mov ax, [cylinders] 5655 00001D65 8B16[743F] mov dx, [cylinders+2] ; 16/10/2020 5656 ;mov cl, 4 5657 ;mov ch, 07h ; color 5658 00001D69 E86A00 call write_number 5659 5660 ;mov ax, 0720h 5661 00001D6C B020 mov al, 20h ; 16/10/2020 5662 00001D6E AB stosw 5663 00001D6F AB stosw 5664 00001D70 B048 mov al, 'H' 5665 00001D72 AB stosw 5666 00001D73 B065 mov al, 'e' 5667 00001D75 AB stosw 5668 00001D76 B061 mov al, 'a' 5669 00001D78 AB stosw 5670 00001D79 B064 mov al, 'd' 5671 00001D7B AB stosw 5672 00001D7C B073 mov al, 's' 5673 00001D7E AB stosw 5674 00001D7F B03A mov al, ':' 5675 00001D81 AB stosw 5676 00001D82 B020 mov al, 20h 5677 00001D84 AB stosw 5678 ;mov [hednumpos], di 5679 00001D85 A1[703F] mov ax, [heads] 5680 00001D88 31D2 xor dx, dx ; 16/10/2020 5681 ;mov cl, 2 5682 ;mov ch, 07h ; color 5683 00001D8A E84900 call write_number 5684 5685 ;mov ax, 0720h 5686 00001D8D B020 mov al, 20h ; 16/10/2020 5687 00001D8F AB stosw 5688 00001D90 AB stosw 5689 00001D91 B053 mov al, 'S' 5690 00001D93 AB stosw 5691 00001D94 B065 mov al, 'e' 5692 00001D96 AB stosw 5693 00001D97 B063 mov al, 'c' 5694 00001D99 AB stosw 5695 00001D9A B074 mov al, 't' 5696 00001D9C AB stosw 5697 00001D9D B06F mov al, 'o' 5698 00001D9F AB stosw 5699 00001DA0 B072 mov al, 'r' 5700 00001DA2 AB stosw 5701 00001DA3 B073 mov al, 's' 5702 00001DA5 AB stosw 5703 00001DA6 B03A mov al, ':' 5704 00001DA8 AB stosw 5705 00001DA9 B020 mov al, 20h 5706 00001DAB AB stosw 5707 ;mov [secnumpos], di 5708 00001DAC A1[6E3F] mov ax, [sectors] 5709 00001DAF 29D2 sub dx, dx ; 16/10/2020 5710 ;mov cl, 2 5711 ;mov ch, 07h ; color 5712 00001DB1 E82200 call write_number 5713 5714 00001DB4 B92003 mov cx, 800 ; 16/10/2020 ; row 5 5715 00001DB7 29F9 sub cx, di 5716 00001DB9 D0E9 shr cl, 1 5717 ;mov cl, 22 5718 ;mov ax, 0720h 5719 00001DBB B020 mov al, 20h ; 16/10/2020 5720 00001DBD F3AB rep stosw 5721 5722 00001DBF B150 mov cl, 80 ; row 6 5723 00001DC1 B02D mov al, "-" 5724 00001DC3 F3AB rep stosw 5725 5726 00001DC5 B150 mov cl, 80 ; row 7 5727 ;mov cl, 160 ; row 7, 8 5728 00001DC7 B020 mov al, 20h 5729 00001DC9 F3AB rep stosw 5730 5731 00001DCB BA0006 mov dx, 0600h ; DH = row, DL = 0 column 5732 00001DCE 31DB xor bx, bx ; BH = video page (0) 5733 00001DD0 B402 mov ah, 02h ; set cursor position 5734 00001DD2 CD10 int 10h 5735 5736 00001DD4 07 pop es 5737 00001DD5 C3 retn 5738 5739 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5740 ; write decimal number 5741 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5742 5743 ;write_number: 5744 ; ; 12/10/2020 5745 ; mov bx, 10 5746 ; mov si, cx 5747 ;wnum_1: 5748 ; xor dx, dx 5749 ; div bx 5750 ; push dx 5751 ; dec cl 5752 ; jnz short wnum_1 5753 ; mov cx, si 5754 ; mov ah, ch ; color (07h or 0Fh) 5755 ; xor ch, ch 5756 ;wnum_2: 5757 ; pop dx 5758 ; mov al, dl 5759 ; add al, '0' 5760 ; stosw 5761 ; loop wnum_2 5762 ; retn 5763 5764 write_number: 5765 ; 16/10/2020 5766 ; dx:ax = binary number 5767 ; di = decimal number/string location 5768 ; modified registers: ax, bx, cx, dx, bp, di 5769 00001DD6 B90A00 mov cx, 10 5770 00001DD9 89E5 mov bp, sp 5771 wnum_1: 5772 00001DDB E89FEE call div32 5773 00001DDE 53 push bx 5774 00001DDF 21D2 and dx, dx 5775 00001DE1 75F8 jnz short wnum_1 5776 00001DE3 09C0 or ax, ax 5777 00001DE5 75F4 jnz short wnum_1 5778 wnum_2: 5779 00001DE7 58 pop ax 5780 00001DE8 0430 add al, '0' 5781 00001DEA B407 mov ah, 07h ; color 5782 00001DEC AB stosw 5783 00001DED 39E5 cmp bp, sp 5784 00001DEF 77F6 ja short wnum_2 5785 00001DF1 C3 retn 5786 5787 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5788 ; partition size input 5789 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5790 5791 ; 12/03/2021 5792 partition_size_input: 5793 ; 23/10/2020 (fdisk3.s modification on hdimage.s source code) 5794 5795 00001DF2 C706[7E6D]0000 mov word [pSize_multiplier+2], 0 5796 00001DF8 C606[836D]42 mov byte [msg_psize_unit+1], 'B' 5797 00001DFD A0[826D] mov al, [pSize_unit] 5798 00001E00 3C25 cmp al, '%' 5799 00001E02 7529 jne short psu_0 5800 ; 08/02/2019 5801 ; calculate sector count for max. available sectors percentage 5802 00001E04 8B16[726D] mov dx, [pp_Sectors+2] ; max. available sectors 5803 00001E08 A1[706D] mov ax, [pp_Sectors] ; for a new partition 5804 ;mov dx, [total_sectors+2] 5805 ;mov ax, [total_sectors] 5806 ;mov cx, 100 5807 ; 13/03/2021 5808 00001E0B B96300 mov cx, 99 5809 00001E0E 01C8 add ax, cx 5810 00001E10 83D200 adc dx, 0 5811 00001E13 41 inc cx ; cx = 100 5812 00001E14 E866EE call div32 5813 00001E17 A3[7C6D] mov [pSize_multiplier], ax 5814 ; 29/10/2020 5815 00001E1A 8916[7E6D] mov [pSize_multiplier+2], dx 5816 00001E1E B400 mov ah, 0 5817 00001E20 8826[836D] mov [msg_psize_unit+1], ah 5818 ;mov byte [pSize_maxdigits], 2 5819 00001E24 C606[806D]03 mov byte [pSize_maxdigits], 3 ; 29/10/2020 5820 00001E29 B025 mov al, '%' 5821 00001E2B EB65 jmp short psu_6 5822 psu_0: 5823 00001E2D 3C43 cmp al, 'C' 5824 00001E2F 7517 jne short psu_1 5825 00001E31 A1[6E3F] mov ax, [sectors] 5826 00001E34 F726[703F] mul word [heads] 5827 00001E38 A3[7C6D] mov [pSize_multiplier], ax 5828 ;mov byte [pSize_maxdigits], 4 5829 ; <= 65535 cylinders 5830 00001E3B C606[806D]05 mov byte [pSize_maxdigits], 5 ; 23/10/2020 5831 ;sub dh, dh 5832 00001E40 8836[836D] mov [msg_psize_unit+1], dh 5833 00001E44 B043 mov al, 'C' 5834 00001E46 EB4A jmp short psu_6 5835 psu_1: 5836 00001E48 3C47 cmp al, 'G' 5837 00001E4A 7513 jne short psu_2 5838 00001E4C C706[7C6D]0008 mov word [pSize_multiplier], 2*1024 5839 00001E52 C706[7E6D]0004 mov word [pSize_multiplier+2], 1024 5840 ;mov byte [pSize_maxdigits], 1 5841 00001E58 C606[806D]03 mov byte [pSize_maxdigits], 3 ; <= 512 GB ; 23/10/2020 5842 00001E5D EB33 jmp short psu_6 5843 psu_2: 5844 00001E5F 3C4D cmp al, 'M' 5845 00001E61 750D jne short psu_3 5846 00001E63 C706[7C6D]0008 mov word [pSize_multiplier], 2*1024 5847 ;;mov byte [pSize_maxdigits], 4 5848 ;mov byte [pSize_maxdigits], 7 ; 23/10/2020 5849 ; 12/03/2021 5850 00001E69 C606[806D]06 mov byte [pSize_maxdigits], 6 ; <= 524288 5851 00001E6E EB22 jmp short psu_6 5852 psu_3: 5853 00001E70 3C4B cmp al, 'K' 5854 00001E72 750D jne short psu_4 5855 00001E74 C706[7C6D]0200 mov word [pSize_multiplier], 2 5856 ;jmp short psu_5 5857 ; 12/03/2021 5858 00001E7A C606[806D]09 mov byte [pSize_maxdigits], 9 ; <= 536870912 5859 00001E7F EB11 jmp short psu_6 5860 psu_4: 5861 ; al = 'S' 5862 00001E81 30E4 xor ah, ah 5863 00001E83 8826[836D] mov [msg_psize_unit+1], ah 5864 00001E87 C706[7C6D]0100 mov word [pSize_multiplier], 1 5865 psu_5: 5866 ;mov byte [pSize_maxdigits], 7 5867 00001E8D C606[806D]0A mov byte [pSize_maxdigits], 10 ; 23/10/2020 5868 psu_6: 5869 00001E92 A2[9B4E] mov [msg_partition_size_x], al 5870 00001E95 BE[874E] mov si, msg_partition_size 5871 00001E98 E8E7FC call print_msg 5872 5873 00001E9B 89E5 mov bp, sp 5874 00001E9D 31DB xor bx, bx 5875 00001E9F 891E[786D] mov [pSize_temp], bx ; 0 5876 ;mov [pSize_temp+2], bx ; 0 5877 00001EA3 881E[816D] mov [pSize_digitpos], bl ; 0 5878 ; bh = 0 ; video page 5879 00001EA7 B403 mov ah, 3 ; get cursor pos 5880 00001EA9 CD10 int 10h 5881 00001EAB 8916[A354] mov [Cursor_Pos], dx 5882 ; 09/02/2019 5883 00001EAF B307 mov bl, 7 ; page 0, color 7 (light gray) 5884 psu_7: 5885 00001EB1 30E4 xor ah, ah 5886 00001EB3 CD16 int 16h 5887 5888 00001EB5 3C30 cmp al, '0' 5889 00001EB7 7225 jb short psu_8 5890 00001EB9 3C39 cmp al, '9' 5891 00001EBB 77F4 ja short psu_7 5892 00001EBD 8A1E[816D] mov bl, [pSize_digitpos] 5893 00001EC1 3A1E[806D] cmp bl, [pSize_maxdigits] 5894 00001EC5 73EA jnb short psu_7 5895 00001EC7 FE06[816D] inc byte [pSize_digitpos] 5896 00001ECB 2C30 sub al, '0' 5897 00001ECD 30E4 xor ah, ah 5898 00001ECF 50 push ax 5899 00001ED0 0430 add al, '0' 5900 00001ED2 B40E mov ah, 0Eh ; write char as tty 5901 ;mov bx, 7 ; page 0, color 7 (light gray) 5902 00001ED4 CD10 int 10h 5903 00001ED6 EBD9 jmp short psu_7 5904 5905 psu_8esc: 5906 ; 29/10/2020 (ESCape) 5907 00001ED8 89EC mov sp, bp ; clean stack 5908 5909 00001EDA 08C0 or al, al ; zf = 0 5910 00001EDC F9 stc 5911 00001EDD C3 retn 5912 psu_8: 5913 00001EDE 20C0 and al, al 5914 00001EE0 0F849300 jz psu_15 ; check for left arrow key 5915 00001EE4 3C1B cmp al, 27 5916 00001EE6 74F0 je short psu_8esc ; ESCAPE key ; 29/10/2020 5917 00001EE8 0F878500 ja psu_14 ; check for left arrow key 5918 00001EEC 3C0D cmp al, 13 5919 ;je short psu_9 ; ENTER key 5920 00001EEE 7249 jb short psu_11 ; check for backspace key 5921 ;jmp short psu_7 5922 00001EF0 77BF ja short psu_7 5923 psu_9: 5924 00001EF2 31C0 xor ax, ax 5925 00001EF4 A3[7A6D] mov [pSize_temp+2], ax ; 0 ; 08/02/2019 5926 00001EF7 3806[816D] cmp byte [pSize_digitpos], al ; 0 5927 00001EFB 0F868500 jna psu_16 5928 ;xor bh, bh 5929 00001EFF 8A1E[816D] mov bl, [pSize_digitpos] 5930 00001F03 FECB dec bl 5931 00001F05 D0E3 shl bl, 1 5932 00001F07 01E3 add bx, sp 5933 00001F09 8B07 mov ax, [bx] 5934 00001F0B A3[786D] mov [pSize_temp], ax 5935 ;mov word [pSize_temp+2], 0 5936 00001F0E B90A00 mov cx, 10 5937 psu_10: 5938 00001F11 FE0E[816D] dec byte [pSize_digitpos] 5939 00001F15 746D jz short psu_16 5940 5941 00001F17 A1[786D] mov ax, [pSize_temp] 5942 00001F1A 8B16[7A6D] mov dx, [pSize_temp+2] 5943 ;mov cx, 10 5944 00001F1E E86AED call mul32 5945 ;mov [pSize_temp], ax 5946 ;mov [pSize_temp+2], dx 5947 ;xor bh, bh 5948 00001F21 8A1E[816D] mov bl, [pSize_digitpos] 5949 00001F25 FECB dec bl 5950 00001F27 D0E3 shl bl, 1 5951 00001F29 01E3 add bx, sp ; (*) 5952 ;mov ax, [bx] 5953 ;add [pSize_temp], ax 5954 ;adc word [pSize_temp+2], 0 5955 00001F2B 0307 add ax, [bx] 5956 00001F2D 83D200 adc dx, 0 5957 00001F30 A3[786D] mov [pSize_temp], ax 5958 00001F33 8916[7A6D] mov [pSize_temp+2], dx 5959 00001F37 EBD8 jmp short psu_10 5960 5961 ; Left arrow, backspace, DEL key checking 5962 psu_11: 5963 00001F39 3C08 cmp al, 8 ; backspace key 5964 00001F3B 0F8572FF jne psu_7 5965 psu_12: 5966 ;; bh = 0 ; video page 5967 ;mov ah, 3 ; get cursor pos 5968 ;int 10h 5969 ;cmp dl, [Cursor_Pos] 5970 ;jna short psu_13 5971 ;dec dl 5972 ;dec byte [pSize_digitpos] 5973 5974 ; 08/02/2019 5975 00001F3F 8B16[A354] mov dx, [Cursor_Pos] 5976 00001F43 8A1E[816D] mov bl, [pSize_digitpos] 5977 00001F47 20DB and bl, bl 5978 00001F49 741D jz short psu_13 5979 5980 00001F4B FECB dec bl 5981 00001F4D 881E[816D] mov [pSize_digitpos], bl 5982 5983 00001F51 00DA add dl, bl 5984 5985 ; bh = 0 ; video page 5986 00001F53 B402 mov ah, 2 ; set cursor pos 5987 00001F55 CD10 int 10h 5988 ;mov bl, dl 5989 ;sub bl, [Cursor_Pos] 5990 00001F57 B90100 mov cx, 1 5991 00001F5A B409 mov ah, 9 ; write char at current curs pos 5992 00001F5C B020 mov al, 20h ; space (blank) 5993 00001F5E 8800 mov [si+bx], al 5994 ; bh = 0 ; video page 5995 00001F60 B307 mov bl, 7 ; attribute/color (light gray) 5996 00001F62 CD10 int 10h 5997 5998 ; 09/02/2019 5999 00001F64 58 pop ax ; remove last digit on top of stack 6000 ; set sp to correct position for BX (*) 6001 00001F65 E949FF jmp psu_7 6002 psu_13: 6003 00001F68 B40E mov ah, 0Eh 6004 00001F6A B007 mov al, 7 6005 ;mov bx, 7 6006 00001F6C CD10 int 10h 6007 00001F6E E940FF jmp psu_7 6008 psu_14: 6009 00001F71 3CE0 cmp al, 0E0h 6010 00001F73 0F853AFF jne psu_7 6011 psu_15: 6012 00001F77 80FC4B cmp ah, 4Bh ; left arrow 6013 00001F7A 74C3 je short psu_12 6014 00001F7C 80FC53 cmp ah, 53h ; DEL key (backspace) 6015 00001F7F 74BE je short psu_12 6016 00001F81 E92DFF jmp psu_7 6017 psu_16: 6018 00001F84 89EC mov sp, bp 6019 6020 ; 29/10/2020 6021 00001F86 803E[826D]25 cmp byte [pSize_unit], '%' 6022 00001F8B 751E jne short psu_23 6023 6024 00001F8D B86400 mov ax, 100 6025 00001F90 3906[786D] cmp word [pSize_temp], ax ; 100 ; % limit 6026 00001F94 7624 jna short psu_17 6027 00001F96 A3[786D] mov word [pSize_temp], ax 6028 6029 ; (re)set asciiz number string to '100' 6030 6031 00001F99 28FF sub bh, bh ; 0 ; video page 0 6032 00001F9B 8B16[A354] mov dx, [Cursor_Pos] 6033 00001F9F B402 mov ah, 2 ; set cursor pos 6034 00001FA1 CD10 int 10h 6035 6036 00001FA3 BE[D268] mov si, msg_100 6037 00001FA6 E8D9FB call print_msg 6038 6039 00001FA9 EB0F jmp short psu_17 6040 psu_23: 6041 00001FAB 803E[826D]53 cmp byte [pSize_unit], 'S' 6042 00001FB0 7508 jne short psu_17 6043 6044 00001FB2 BE[B064] mov si, msg_sectors_crlf 6045 00001FB5 E8CAFB call print_msg 6046 ;xor bx, bx 6047 00001FB8 EB30 jmp short psu_18 6048 psu_17: 6049 00001FBA BE[826D] mov si, msg_psize_unit 6050 00001FBD E8C2FB call print_msg 6051 6052 00001FC0 BE[5F55] mov si, CRLF 6053 00001FC3 E8BCFB call print_msg 6054 6055 ; 29/10/2020 6056 00001FC6 803E[826D]25 cmp byte [pSize_unit], '%' 6057 00001FCB 751D jne short psu_18 6058 6059 00001FCD 8B0E[786D] mov cx, [pSize_temp] 6060 6061 00001FD1 21C9 and cx, cx 6062 00001FD3 7443 jz short psu_21 ; 0%, ZERO ! 6063 6064 00001FD5 83F964 cmp cx, 100 6065 00001FD8 7606 jna short psu_24 6066 6067 ; show 100% for 1 second (for >100%) 6068 00001FDA E83D00 call wait1second ; 29/10/2020 6069 6070 00001FDD B96400 mov cx, 100 6071 psu_24: 6072 00001FE0 A1[7C6D] mov ax, [pSize_multiplier] 6073 00001FE3 8B16[7E6D] mov dx, [pSize_multiplier+2] 6074 6075 ;mov cx, [pSize_temp] 6076 ;and cx, cx 6077 ;jz short psu_21 ; 0%, ZERO ! 6078 6079 00001FE7 E9A1EC jmp mul32 6080 psu_18: 6081 00001FEA A1[786D] mov ax, [pSize_temp] 6082 00001FED 8B16[7A6D] mov dx, [pSize_temp+2] 6083 00001FF1 89C1 mov cx, ax 6084 00001FF3 09D1 or cx, dx 6085 ;jz short psu_20 6086 00001FF5 7421 jz short psu_21 ; 08/02/2019 6087 00001FF7 8B0E[7C6D] mov cx, [pSize_multiplier] 6088 00001FFB 803E[826D]43 cmp byte [pSize_unit], 'C' 6089 00002000 7413 je short psu_20 ; 09/02/2019 6090 ;jne short psu_19 6091 ;call mul32 6092 ; 08/02/2019 6093 ; dx:ax = requested partition size in sectors 6094 ;retn 6095 ;psu_19: 6096 ;mov cx, [pSize_multiplier] 6097 00002002 83F901 cmp cx, 1 6098 ;jna short psu_20 6099 00002005 7703 ja short psu_19 6100 ; 09/02/2019 6101 00002007 31DB xor bx, bx 6102 00002009 C3 retn 6103 psu_19: 6104 0000200A E87EEC call mul32 6105 ;and bx, bx 6106 ;jnz short psu_22 ; 09/02/2019 6107 0000200D 8B0E[7E6D] mov cx, [pSize_multiplier+2] 6108 00002011 09C9 or cx, cx 6109 ;jz short psu_20 6110 00002013 7404 jz short psu_22 ; 09/02/2019 6111 psu_20: 6112 ;call mul32 6113 ;retn 6114 00002015 E973EC jmp mul32 ; 23/10/2020 6115 psu_21: 6116 ; zf = 1 ; 29/10/2020 6117 00002018 F9 stc 6118 psu_22: 6119 00002019 C3 retn 6120 6121 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6122 ; wait for 1 second 6123 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6124 6125 ; 29/10/2020 6126 wait1second: 6127 0000201A B402 mov ah, 2 6128 0000201C CD1A int 1Ah ; get time of day 6129 0000201E 720C jc short w1s_2 6130 w1s_1: 6131 00002020 52 push dx 6132 00002021 B402 mov ah, 2 6133 00002023 CD1A int 1Ah ; get time of day 6134 00002025 58 pop ax 6135 00002026 7204 jc short w1s_2 6136 00002028 38E6 cmp dh, ah 6137 0000202A 74F4 je short w1s_1 ; same second 6138 w1s_2: 6139 0000202C C3 retn 6140 6141 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6142 ; partition type input 6143 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6144 6145 partition_type_input: 6146 0000202D BE[A14E] mov si, msg_partition_type 6147 00002030 E84FFB call print_msg 6148 6149 00002033 31DB xor bx, bx 6150 6151 00002035 881E[926D] mov [pType_pos], bl ; 0 6152 00002039 891E[936D] mov [pType_num], bx ; 0 6153 6154 ; bh = 0 ; video page 6155 0000203D B403 mov ah, 3 ; get cursor pos 6156 0000203F CD10 int 10h 6157 00002041 8916[A354] mov [Cursor_Pos], dx 6158 ptu_0: 6159 00002045 30E4 xor ah, ah 6160 00002047 CD16 int 16h 6161 6162 00002049 803E[926D]01 cmp byte [pType_pos], 1 6163 0000204E 773F ja short ptu_5 6164 6165 00002050 3C30 cmp al, '0' 6166 00002052 723B jb short ptu_5 6167 00002054 3C39 cmp al, '9' 6168 00002056 7707 ja short ptu_1 6169 00002058 88C4 mov ah, al 6170 0000205A 80EC30 sub ah, '0' 6171 0000205D EB13 jmp short ptu_2 6172 ptu_1: 6173 0000205F 3CE0 cmp al, 0E0h 6174 00002061 7473 je short ptu_9 6175 6176 00002063 24DF and al, 0DFh 6177 00002065 3C41 cmp al, 'A' 6178 00002067 72DC jb short ptu_0 6179 00002069 3C46 cmp al, 'F' 6180 0000206B 77D8 ja short ptu_0 6181 0000206D 88C4 mov ah, al 6182 0000206F 80EC37 sub ah, 'A'-10 6183 ptu_2: 6184 00002072 803E[926D]00 cmp byte [pType_pos], 0 6185 00002077 7606 jna short ptu_3 6186 00002079 8826[946D] mov [pType_num+1], ah 6187 0000207D EB04 jmp short ptu_4 6188 ptu_3: 6189 0000207F 8826[936D] mov [pType_num], ah 6190 ptu_4: 6191 00002083 B40E mov ah, 0Eh 6192 00002085 B307 mov bl, 7 6193 00002087 CD10 int 10h 6194 6195 00002089 FE06[926D] inc byte [pType_pos] 6196 6197 0000208D EBB6 jmp short ptu_0 6198 ptu_5: 6199 0000208F 20C0 and al, al 6200 00002091 7443 jz short ptu_9 ; check for left arrow key 6201 00002093 3C1B cmp al, 27 6202 00002095 744C je short ptu_10 ; ESCAPE key 6203 00002097 77AC ja short ptu_0 6204 00002099 3C0D cmp al, 13 6205 0000209B 744A je short ptu_11 ; ENTER key 6206 0000209D 77A6 ja short ptu_0 6207 ptu_6: 6208 ; Left arrow, backspace, DEL key checking 6209 6210 0000209F 3C08 cmp al, 8 ; backspace key 6211 000020A1 75A2 jne short ptu_0 6212 ptu_7: 6213 ; bh = 0 ; video page 6214 000020A3 B403 mov ah, 3 ; get cursor pos 6215 000020A5 CD10 int 10h 6216 000020A7 3A16[A354] cmp dl, [Cursor_Pos] 6217 000020AB 7620 jna short ptu_8 6218 000020AD FECA dec dl 6219 000020AF FE0E[926D] dec byte [pType_pos] 6220 ; bh = 0 ; video page 6221 000020B3 B402 mov ah, 2 ; set cursor pos 6222 000020B5 CD10 int 10h 6223 000020B7 88D3 mov bl, dl 6224 000020B9 2A1E[A354] sub bl, [Cursor_Pos] 6225 000020BD B90100 mov cx, 1 6226 000020C0 B409 mov ah, 9 ; write char at current curs pos 6227 000020C2 B020 mov al, 20h ; space (blank) 6228 000020C4 8800 mov [si+bx], al 6229 ; bh = 0 ; video page 6230 000020C6 B307 mov bl, 7 ; attribute/color (light gray) 6231 000020C8 CD10 int 10h 6232 000020CA E978FF jmp ptu_0 6233 ptu_8: 6234 000020CD B40E mov ah, 0Eh 6235 000020CF B007 mov al, 7 6236 000020D1 CD10 int 10h 6237 000020D3 E96FFF jmp ptu_0 6238 ptu_9: 6239 000020D6 80FC4B cmp ah, 4Bh ; left arrow 6240 000020D9 74C8 je short ptu_7 6241 000020DB 80FC53 cmp ah, 53h ; DEL key (backspace) 6242 000020DE 74C3 je short ptu_7 6243 000020E0 E962FF jmp ptu_0 6244 6245 ptu_10: ; ESCAPE 6246 ;mov al, 0 6247 ; 29/10/2020 6248 000020E3 28C0 sub al, al ; 0 6249 ; partition type is 0 (none) 6250 000020E5 EB12 jmp short ptu_12 6251 ptu_11: ; ENTER 6252 000020E7 A0[936D] mov al, [pType_num] 6253 000020EA 803E[926D]01 cmp byte [pType_pos], 1 6254 000020EF 7608 jna short ptu_12 6255 000020F1 B410 mov ah, 16 6256 000020F3 F6E4 mul ah 6257 000020F5 0206[946D] add al, [pType_num+1] 6258 ptu_12: 6259 000020F9 50 push ax 6260 000020FA E85BFB call bin_to_hex 6261 000020FD A3[B74E] mov [msg_ptype_num], ax 6262 ; bh = 0 ; video page 6263 00002100 B402 mov ah, 2 ; set cursor pos 6264 00002102 8B16[A354] mov dx, [Cursor_Pos] 6265 00002106 CD10 int 10h 6266 00002108 BE[B74E] mov si, msg_ptype_num 6267 0000210B E874FA call print_msg 6268 0000210E 58 pop ax 6269 0000210F C3 retn 6270 6271 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6272 ; show selected partition 6273 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6274 6275 show_selected_partition: 6276 ; INPUT -> 6277 ; DS:SI = Partition table row address 6278 6279 ; 2019 - 2020 (hdimage.s) 6280 ;pt_s_offset equ 7 6281 ;pt_bh_offset equ 11 6282 ;pt_bs_offset equ 15 6283 ;pt_bc_offset equ 19 6284 ;pt_fs_offset equ 23 6285 ;pt_eh_offset equ 27 6286 ;pt_es_offset equ 31 6287 ;pt_ec_offset equ 35 6288 ;pt_rs_offset equ 41 6289 ;pt_ts_offset equ 52 6290 ;pt_fsn_offset equ 63 6291 6292 ; 24/10/2020 (fdisk3.s) 6293 pt_s_offset equ 6 6294 pt_bh_offset equ 10 6295 pt_bs_offset equ 14 6296 pt_bc_offset equ 18 6297 pt_fs_offset equ 22 6298 pt_eh_offset equ 26 6299 pt_es_offset equ 30 6300 pt_ec_offset equ 34 6301 pt_rs_offset equ 40 6302 pt_ts_offset equ 51 6303 pt_fsn_offset equ 63 6304 6305 ; clear screen 6306 00002110 B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 6307 00002113 CD10 int 10h 6308 6309 00002115 89F0 mov ax, si 6310 00002117 2D[9857] sub ax, MasterBootBuff + pTableOffset ; + 446 6311 0000211A C0E804 shr al, 4 ; from offset to partition number 6312 0000211D 0431 add al, '1' ; 1 based partition number (chr) 6313 ; Write partition number to the header location 6314 0000211F A2[7750] mov [msg_selected_partition+43], al ; '1' to '4' 6315 6316 ; Partition number will be used at formatting stage 6317 00002122 A2[4653] mov [partition_num_chr], al ; number + '0' 6318 6319 00002125 B268 mov dl, 'h' 6320 00002127 8A04 mov al, [si+ptBootable] 6321 00002129 E82CFB call bin_to_hex 6322 0000212C A3[9251] mov [pt_row+pt_s_offset], ax 6323 0000212F 8816[9451] mov [pt_row+pt_s_offset+2], dl ; 'h' 6324 00002133 8A4401 mov al, [si+ptBeginHead] 6325 00002136 E81FFB call bin_to_hex 6326 00002139 A3[9651] mov [pt_row+pt_bh_offset], ax 6327 0000213C 8816[9851] mov [pt_row+pt_bh_offset+2], dl ; 'h' 6328 00002140 8A4402 mov al, [si+ptBeginSector] 6329 00002143 E812FB call bin_to_hex 6330 00002146 A3[9A51] mov [pt_row+pt_bs_offset], ax 6331 00002149 8816[9C51] mov [pt_row+pt_bs_offset+2], dl ; 'h' 6332 0000214D 8A4403 mov al, [si+ptBeginCylinder] 6333 00002150 E805FB call bin_to_hex 6334 00002153 A3[9E51] mov [pt_row+pt_bc_offset], ax 6335 00002156 8816[A051] mov [pt_row+pt_bc_offset+2], dl ; 'h' 6336 0000215A 8A4404 mov al, [si+ptFileSystemID] 6337 ; Partition type will be used at formatting stage 6338 0000215D A2[766D] mov [pp_type_user], al 6339 00002160 E8F5FA call bin_to_hex 6340 00002163 A3[A251] mov [pt_row+pt_fs_offset], ax 6341 00002166 8816[A451] mov [pt_row+pt_fs_offset+2], dl ; 'h' 6342 0000216A 8A4405 mov al, [si+ptEndHead] 6343 0000216D E8E8FA call bin_to_hex 6344 00002170 A3[A651] mov [pt_row+pt_eh_offset], ax 6345 00002173 8816[A851] mov [pt_row+pt_eh_offset+2], dl ; 'h' 6346 00002177 8A4406 mov al, [si+ptEndSector] 6347 0000217A E8DBFA call bin_to_hex 6348 0000217D A3[AA51] mov [pt_row+pt_es_offset], ax 6349 00002180 8816[AC51] mov [pt_row+pt_es_offset+2], dl ; 'h' 6350 00002184 8A4407 mov al, [si+ptEndCylinder] 6351 00002187 E8CEFA call bin_to_hex 6352 0000218A A3[AE51] mov [pt_row+pt_ec_offset], ax 6353 0000218D 8816[B051] mov [pt_row+pt_ec_offset+2], dl ; 'h' 6354 00002191 8A4408 mov al, [si+ptStartSector] 6355 00002194 E8C1FA call bin_to_hex 6356 00002197 A3[BA51] mov [pt_row+pt_rs_offset+6], ax 6357 0000219A 8816[BC51] mov [pt_row+pt_rs_offset+8], dl ; 'h' 6358 0000219E 8A4409 mov al, [si+ptStartSector+1] 6359 000021A1 E8B4FA call bin_to_hex 6360 000021A4 A3[B851] mov [pt_row+pt_rs_offset+4], ax 6361 000021A7 8A440A mov al, [si+ptStartSector+2] 6362 000021AA E8ABFA call bin_to_hex 6363 000021AD A3[B651] mov [pt_row+pt_rs_offset+2], ax 6364 000021B0 8A440B mov al, [si+ptStartSector+3] 6365 000021B3 E8A2FA call bin_to_hex 6366 000021B6 A3[B451] mov [pt_row+pt_rs_offset], ax 6367 000021B9 8A440C mov al, [si+ptSectors] 6368 000021BC E899FA call bin_to_hex 6369 000021BF A3[C551] mov [pt_row+pt_ts_offset+6], ax 6370 000021C2 8816[C751] mov [pt_row+pt_ts_offset+8], dl ; 'h' 6371 000021C6 8A440D mov al, [si+ptSectors+1] 6372 000021C9 E88CFA call bin_to_hex 6373 000021CC A3[C351] mov [pt_row+pt_ts_offset+4], ax 6374 000021CF 8A440E mov al, [si+ptSectors+2] 6375 000021D2 E883FA call bin_to_hex 6376 000021D5 A3[C151] mov [pt_row+pt_ts_offset+2], ax 6377 000021D8 8A440F mov al, [si+ptSectors+3] 6378 000021DB E87AFA call bin_to_hex 6379 000021DE A3[BF51] mov [pt_row+pt_ts_offset], ax 6380 6381 000021E1 8A4404 mov al, [si+ptFileSystemID] 6382 000021E4 BF[8E40] mov di, valid_partitions 6383 000021E7 B91300 mov cx, 19 6384 000021EA F2AE repnz scasb 6385 000021EC 7405 jz short ssp_1 6386 000021EE B8[8040] mov ax, FS_OTHERS 6387 000021F1 EB0C jmp short ssp_2 6388 ssp_1: 6389 000021F3 81EF[8F40] sub di, valid_partitions + 1 6390 000021F7 B80E00 mov ax, 14 6391 000021FA F7E7 mul di 6392 000021FC 05[763F] add ax, FileSys_Names 6393 ssp_2: 6394 000021FF 96 xchg ax, si 6395 00002200 B107 mov cl, 7 6396 00002202 BF[CB51] mov di, pt_row + pt_fsn_offset 6397 00002205 F3A5 rep movsw 6398 00002207 89C7 mov di, ax ; partition table row address 6399 6400 00002209 BE[4C50] mov si, msg_selected_partition 6401 0000220C E873F9 call print_msg 6402 6403 0000220F BE[2D52] mov si, msg_boot_indicator 6404 00002212 E86DF9 call print_msg 6405 00002215 BE[995C] mov si, msg_YES 6406 00002218 F60580 test byte [di+ptBootable], 80h 6407 0000221B 7503 jnz short ssp_3 6408 0000221D BE[9F5C] mov si, msg_NO 6409 ssp_3: 6410 00002220 E85FF9 call print_msg 6411 6412 00002223 BE[4552] mov si, msg_starting_head 6413 00002226 E859F9 call print_msg 6414 00002229 8A4501 mov al, [di+ptBeginHead] 6415 0000222C E8B200 call write_byte_decimal 6416 0000222F E850F9 call print_msg 6417 00002232 BE[5D52] mov si, msg_starting_sector 6418 00002235 E84AF9 call print_msg 6419 00002238 8A4502 mov al, [di+ptBeginSector] 6420 0000223B 88C2 mov dl, al ; bits 7&8 are bits 8&9 of cyl 6421 0000223D 243F and al, 3Fh ; sector number, 1 to 63 6422 0000223F E89F00 call write_byte_decimal 6423 00002242 E83DF9 call print_msg 6424 00002245 BE[7552] mov si, msg_starting_cylinder 6425 00002248 E837F9 call print_msg 6426 0000224B 8A4503 mov al, [di+ptBeginCylinder] ; bits 0to7 of cyl 6427 0000224E C0EA06 shr dl, 6 ; bits 8&9 of cyl 6428 00002251 88D4 mov ah, dl 6429 00002253 31D2 xor dx, dx 6430 ;mov si, msg_partition_sectors + 7 ; max. 8 digits 6431 ; 06/11/2020 6432 00002255 BE[8F6D] mov si, msg_partition_sectors + 10 ; max. 11 digits 6433 ; dx_ax: binary number 6434 00002258 E8E6F9 call bin_to_decimal 6435 ; ds:si = decimal number text address 6436 0000225B E824F9 call print_msg 6437 0000225E BE[8D52] mov si, msg_system_id 6438 00002261 E81EF9 call print_msg 6439 ; Write file system name (again, copy) 6440 00002264 BE[CB51] mov si, pt_row + pt_fsn_offset 6441 ;mov cx, 14 6442 00002267 B10E mov cl, 14 6443 00002269 B40E mov ah, 0Eh ; write tty 6444 0000226B BB0700 mov bx, 7 6445 ssp_4: 6446 0000226E AC lodsb 6447 0000226F CD10 int 10h 6448 00002271 E2FB loop ssp_4 6449 6450 00002273 BE[A552] mov si, msg_ending_head 6451 00002276 E809F9 call print_msg 6452 00002279 8A4505 mov al, [di+ptEndHead] 6453 0000227C E86200 call write_byte_decimal 6454 0000227F E800F9 call print_msg 6455 00002282 BE[BD52] mov si, msg_ending_sector 6456 00002285 E8FAF8 call print_msg 6457 00002288 8A4506 mov al, [di+ptEndSector] 6458 0000228B 88C2 mov dl, al ; bits 7&8 are bits 8&9 of cyl 6459 0000228D 243F and al, 3Fh ; sector number, 1 to 63 6460 0000228F E84F00 call write_byte_decimal 6461 00002292 E8EDF8 call print_msg 6462 00002295 BE[D552] mov si, msg_ending_cylinder 6463 00002298 E8E7F8 call print_msg 6464 0000229B 8A4507 mov al, [di+ptEndCylinder] ; bits 0to7 of cyl 6465 0000229E C0EA06 shr dl, 6 ; bits 8&9 of cyl 6466 000022A1 88D4 mov ah, dl 6467 000022A3 31D2 xor dx, dx 6468 ;mov si, msg_partition_sectors + 7 ; max. 8 digits 6469 ; 06/11/2020 6470 000022A5 BE[8F6D] mov si, msg_partition_sectors + 10 ; max. 11 digits 6471 ; dx_ax: binary number 6472 000022A8 E896F9 call bin_to_decimal 6473 ; ds:si = decimal number text address 6474 000022AB E8D4F8 call print_msg 6475 6476 000022AE BE[ED52] mov si, msg_relative_sectors 6477 000022B1 E8CEF8 call print_msg 6478 000022B4 8B4508 mov ax, [di+ptStartSector] 6479 000022B7 8B550A mov dx, [di+ptStartSector+2] 6480 ;;mov si, msg_partition_sectors + 7 ; max. 8 digits 6481 ;mov si, reserved_bytes + 10 ; max. 11 digits 6482 ; 06/11/2020 6483 000022BA BE[8F6D] mov si, msg_partition_sectors + 10 ; max. 11 digits 6484 000022BD E881F9 call bin_to_decimal 6485 000022C0 E8BFF8 call print_msg 6486 6487 000022C3 BE[0753] mov si, msg_total_sectors 6488 000022C6 E8B9F8 call print_msg 6489 000022C9 8B450C mov ax, [di+ptSectors] 6490 000022CC 8B550E mov dx, [di+ptSectors+2] 6491 ;;mov si, msg_partition_sectors + 7 ; max. 8 digits 6492 ;mov si, reserved_bytes + 10 ; max. 11 digits 6493 ; 06/11/2020 6494 000022CF BE[8F6D] mov si, msg_partition_sectors + 10 ; max. 11 digits 6495 000022D2 E86CF9 call bin_to_decimal 6496 000022D5 E8AAF8 call print_msg 6497 6498 ; 24/02/2019 6499 000022D8 BE[5F55] mov si, CRLF 6500 000022DB E8A4F8 call print_msg 6501 6502 000022DE 89FE mov si, di ; partition table row address 6503 6504 000022E0 C3 retn 6505 6506 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6507 ; write byte as descimal number 6508 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6509 6510 write_byte_decimal: 6511 ; INPUT -> 6512 ; AL = binary number 6513 ; OUTPUT -> 6514 ; DS:SI = decimal number text address 6515 ; (ASCIIZ string) 6516 ; 6517 ; (SI, AX, CX will be modified) 6518 6519 ;mov si, msg_partition_sectors + 8 ; max. 8 digits 6520 ; 06/11/2020 6521 000022E1 BE[906D] mov si, msg_partition_sectors + 11 ; max. 11 digits 6522 000022E4 B10A mov cl, 10 6523 wbd_loop: 6524 000022E6 4E dec si 6525 000022E7 30E4 xor ah, ah 6526 000022E9 F6F1 div cl 6527 000022EB 80C430 add ah, '0' 6528 000022EE 8824 mov [si], ah 6529 000022F0 20C0 and al, al 6530 000022F2 75F2 jnz short wbd_loop 6531 000022F4 C3 retn 6532 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6533 ; init (MBR) partition table 6534 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6535 ; 16/10/2020 6536 6537 ; 03/02/2019 6538 init_partition_table: 6539 6540 ; INPUT -> none 6541 ; OUTPUT -> none 6542 6543 ; 15/10/2020 6544 ; (If a partition row contains invalid/wrong/defective parameters) 6545 ; (it's active partition flag/byte will be 0FFh, an invalid value!) 6546 6547 ; 12/02/2019 6548 ;cmp word [MBIDCode], 0AA55h 6549 ;jne ipt_stc ; invalid 6550 6551 ; 15/02/2019 6552 ; clear primary partition table structure/list 6553 6554 000022F5 BF[1870] mov di, part_table_boot_ind 6555 000022F8 B92400 mov cx, 36 ; 18*4 = 72 bytes 6556 000022FB 31C0 xor ax, ax ; 0 6557 000022FD F3AB rep stosw 6558 6559 000022FF A3[6070] mov [pcount], ax ; reset (pcount & ppcount) 6560 00002302 A3[6270] mov [apcount], ax ; reset (apcount & epnumber) 6561 6562 00002305 BE[9857] mov si, MasterBootBuff+446 ; Partition table offset 6563 ;mov cx, 4 6564 00002308 B104 mov cl, 4 6565 0000230A 31FF xor di, di 6566 ipt_0: 6567 0000230C 8A6404 mov ah, [si+ptFileSystemID] 6568 6569 0000230F 20E4 and ah, ah 6570 00002311 0F841601 jz ipt_8 ; empty 6571 6572 00002315 FE06[6070] inc byte [pcount] ; partition count 6573 6574 00002319 80FC01 cmp ah, 1 ; FAT12 6575 0000231C 7442 je short ipt_2 6576 0000231E 80FC04 cmp ah, 4 ; FAT16 6577 00002321 743D je short ipt_2 6578 00002323 723F jb short ipt_3 6579 00002325 80FC06 cmp ah, 6 ; FAT16 big 6580 00002328 7436 je short ipt_2 6581 0000232A 7715 ja short ipt_1 ; EXTENDED 6582 6583 ;cmp ah, 5 ; EXTENDED 6584 ;jne short ipt_3 6585 ipt_17: 6586 0000232C 803E[6370]00 cmp byte [epnumber], 0 6587 ;ja short ipt_stc ; invalid (more than 1 extended dos partition) 6588 00002331 7605 jna short ipt_15 6589 6590 00002333 C685[1870]FF mov byte [part_table_boot_ind+di], 0FFh 6591 ; Invalid/Defective partition flag 6592 ipt_15: 6593 00002338 B005 mov al, 5 6594 0000233A 28C8 sub al, cl ; partition number 1 to 4 6595 0000233C A2[6370] mov byte [epnumber], al ; extended partition entry number (1 to 4) 6596 0000233F EB23 jmp short ipt_3 6597 ipt_1: 6598 ; 26/10/2020 6599 00002341 80FC07 cmp ah, 07h ; NTFS (Windows FS) 6600 00002344 741A je short ipt_2 ; accept NTFS as primary dos partition 6601 ; (then, extended partition can be created) 6602 ; 24/10/2020 6603 00002346 80FC0C cmp ah, 0Ch ; FAT32 (LBA) 6604 00002349 7415 je short ipt_2 6605 0000234B 7707 ja short ipt_18 6606 ; 16/10/2020 6607 0000234D 80FC0B cmp ah, 0Bh ; FAT32 (CHS) 6608 ;jne short ipt_3 6609 ; 24/10/2020 6610 00002350 740E je short ipt_2 6611 00002352 7210 jb short ipt_3 ; non-dos partition (NTFS or unknown fs type) 6612 ipt_18: 6613 00002354 80FC0F cmp ah, 0Fh ; EXTENDED (LBA) 6614 00002357 74D3 je short ipt_17 6615 00002359 7709 ja short ipt_3 ; non-dos partition 6616 ; (xenix/unix/linux/singlix/runix or unknown) 6617 0000235B 80FC0E cmp ah, 0Eh ; FAT16 (LBA) 6618 0000235E 7504 jne short ipt_3 ; 0Dh 6619 ; FAT16 LBA (0Eh) 6620 ipt_2: 6621 00002360 FE06[6170] inc byte [ppcount] ; primary dos partition count 6622 ipt_3: 6623 00002364 88A5[1D70] mov [part_table_sys_id+di], ah ; Partition Type (FS type) 6624 6625 00002368 8A04 mov al, [si+ptBootable] 6626 6627 0000236A 20C0 and al, al 6628 0000236C 7413 jz short ipt_4 6629 6630 0000236E 803E[6270]01 cmp byte [apcount], 1 ; check (previous) active partition count 6631 ;jnb short ipt_stc ; invalid (if it is not zero here) 6632 00002373 7304 jnb short ipt_16 6633 6634 00002375 3C80 cmp al, 80h ; active partition sign/flag? 6635 ;jne short ipt_stc ; invalid flag 6636 00002377 7404 je short ipt_11 6637 ipt_16: 6638 ; 15/10/2020 6639 00002379 B0FF mov al, 0FFh ; Invalid/Defective partition flag 6640 0000237B EB04 jmp short ipt_4 6641 ipt_11: 6642 0000237D FE06[6270] inc byte [apcount] ; active partition count = 1 6643 ipt_4: 6644 00002381 8885[1870] mov [part_table_boot_ind+di], al 6645 6646 ;mov al, [heads] 6647 ;ipt_4_fix: 6648 ;dec al 6649 00002385 8A6401 mov ah, [si+ptBeginHead] 6650 ;cmp al, ah 6651 ;;jb short ipt_retn ; invalid 6652 ;jb ipt_heads_fix ; 10/02/2019 6653 00002388 88A5[1970] mov [part_table_start_head+di], ah 6654 0000238C 8A6405 mov ah, [si+ptEndHead] 6655 ;cmp al, ah 6656 ;;jb short ipt_retn ; invalid 6657 ;jb short ipt_heads_fix ; 10/02/2019 6658 0000238F 88A5[1E70] mov [part_table_end_head+di], ah 6659 ;mov al, [sectors] 6660 00002393 8A7C02 mov bh, [si+ptBeginSector] 6661 00002396 88FC mov ah, bh 6662 00002398 80E43F and ah, 3Fh ; 63 6663 ;cmp al, ah 6664 ;jb short ipt_retn ; invalid 6665 0000239B 88A5[1A70] mov [part_table_start_sector+di], ah 6666 0000239F 8A7406 mov dh, [si+ptEndSector] 6667 000023A2 88F4 mov ah, dh 6668 000023A4 80E43F and ah, 3Fh ; 63 6669 ;cmp al, ah 6670 ;jb short ipt_retn ; invalid 6671 000023A7 88A5[1F70] mov [part_table_end_sector+di], ah 6672 000023AB C0EF06 shr bh, 6 6673 000023AE 8A5C03 mov bl, [si+ptBeginCylinder] 6674 ;mov ax, [cylinders] 6675 ;dec ax 6676 ;cmp ax, bx 6677 ;jb short ipt_retn ; invalid 6678 000023B1 899D[1B70] mov [part_table_start_cyl+di], bx 6679 000023B5 C0EE06 shr dh, 6 6680 000023B8 8A5407 mov dl, [si+ptEndCylinder] 6681 ;cmp ax, dx 6682 ;jb short ipt_retn ; invalid 6683 000023BB 8995[2070] mov [part_table_end_cyl+di], dx 6684 6685 000023BF 8B4408 mov ax, [si+ptStartSector] 6686 000023C2 8B540A mov dx, [si+ptStartSector+2] 6687 6688 000023C5 8985[2270] mov [part_table_rel_sec_lw+di], ax 6689 000023C9 8995[2470] mov [part_table_rel_sec_hw+di], dx 6690 6691 000023CD 09D0 or ax, dx 6692 ;jz short ipt_stc ; invalid (start sector must not be zero) 6693 000023CF 7505 jnz short ipt_12 6694 ; 15/10/2020 6695 000023D1 C685[1870]FF mov byte [part_table_boot_ind+di], 0FFh 6696 ; Invalid/Defective partition flag 6697 ipt_12: 6698 000023D6 8B440C mov ax, [si+ptSectors] 6699 000023D9 8B540E mov dx, [si+ptSectors+2] 6700 6701 000023DC 89D3 mov bx, dx 6702 000023DE 09C3 or bx, ax 6703 ;jz short ipt_stc ; invalid (zero size of partition) 6704 000023E0 7505 jnz short ipt_6 ; 10/02/2019 6705 6706 ; 15/10/2020 6707 000023E2 C685[1870]FF mov byte [part_table_boot_ind+di], 0FFh 6708 ; Invalid/Defective partition flag 6709 6710 ;cmp dx, [total_sectors+2] 6711 ;ja short ipt_stc ; invalid (partition size > disk capacity) 6712 ;jb short ipt_6 6713 ;;cmp ax, [total_sectors] ; (ax + 1) <= total sectors 6714 ;jb short ipt_6 6715 6716 ;ipt_stc: 6717 ; ; invalid MBR data 6718 ; ;stc 6719 ;ipt_retn: 6720 ; retn 6721 6722 ;ipt_heads_fix: 6723 ; 10/02/2019 6724 ; AL = [heads] - 1 6725 6726 ;test byte [cylinders], 1 6727 ;jnz short ipt_stc ; odd cylinder count (can not be shifted) 6728 6729 ;inc al ; = [heads] 6730 ;cmp al, 8 6731 ;ja short ipt_stc ; this fix is needed for <= 16 heads (& 17 spt) 6732 ;shl al, 1 6733 ;mov [heads], al ; heads = heads*2 6734 ;shr word [cylinders], 1 ; cylinders = cylinders/2 6735 ;jmp ipt_4_fix 6736 6737 ipt_6: 6738 000023E7 8985[2670] mov [part_table_num_sec_lw+di], ax 6739 000023EB 8995[2870] mov [part_table_num_sec_hw+di], dx 6740 6741 000023EF 0385[2270] add ax, [part_table_rel_sec_lw+di] 6742 000023F3 1395[2470] adc dx, [part_table_rel_sec_hw+di] 6743 ;jc short ipt_retn ; invalid 6744 ; 27/10/2020 6745 000023F7 720E jc short ipt_13 6746 6747 000023F9 3B16[DC68] cmp dx, [total_sectors+2] 6748 ;ja short ipt_stc ; invalid (partition end > disk capacity) 6749 000023FD 720D jb short ipt_7 6750 ; 27/10/2020 6751 000023FF 7706 ja short ipt_13 6752 00002401 3B06[DA68] cmp ax, [total_sectors] ; ax <= total sectors 6753 ;ja short ipt_stc ; invalid (partition end > disk capacity) 6754 00002405 7605 jna short ipt_7 6755 ipt_13: 6756 ; 15/10/2020 6757 00002407 C685[1870]FF mov byte [part_table_boot_ind+di], 0FFh 6758 ; Invalid/Defective partition flag 6759 ipt_7: 6760 ; 27/10/2020 6761 0000240C B8FE03 mov ax, 1022 ; CHS cylinder number limit 6762 0000240F 3985[1B70] cmp [part_table_start_cyl+di], ax 6763 00002413 7707 ja short ipt_19 ; = 1023 6764 00002415 40 inc ax ; 1023 6765 00002416 3985[2070] cmp [part_table_end_cyl+di], ax 6766 0000241A 7203 jb short ipt_14 ; < 1023 6767 ipt_19: 6768 ; 27/10/2020 6769 ; set cylinder number if the partition's start or end sector is 6770 ; at the beyond of chs limit 6771 ; ax = 1022 -> set start cylinder 6772 ; ax = 1023 -> set end cylinder 6773 0000241C E82100 call cylindernumberfix 6774 ipt_14: 6775 0000241F 83C610 add si, 16 6776 00002422 E201 loop ipt_5 6777 6778 ; OK! 6779 6780 ;clc 6781 00002424 C3 retn 6782 6783 ipt_5: 6784 00002425 83C712 add di, 18 6785 00002428 E9E1FE jmp ipt_0 6786 6787 ipt_8: 6788 ; Empty partition table check (all of 16 bytes must be 0) 6789 0000242B 51 push cx 6790 0000242C 56 push si ; 16/10/2020 6791 0000242D B108 mov cl, 8 6792 ipt_9: 6793 0000242F AD lodsw 6794 00002430 09C0 or ax, ax 6795 00002432 7507 jnz short ipt_10 6796 00002434 E2F9 loop ipt_9 6797 00002436 59 pop cx ; 16/10/2020 ; (discard si) 6798 00002437 59 pop cx 6799 00002438 E2EB loop ipt_5 6800 6801 ;clc 6802 0000243A C3 retn 6803 ipt_10: 6804 ;pop cx 6805 ; invalid 6806 ;stc 6807 ; 27/10/2020 6808 ; 15/10/2020 6809 ;mov byte [part_table_boot_ind+di], 0FFh 6810 ; Invalid/Defective partition flag 6811 ;retn 6812 ; 16/10/2020 6813 ; 31/10/2020 6814 ;mov byte [part_table_sys_id+di], 0 ; Empty partition 6815 0000243B 5E pop si 6816 0000243C 59 pop cx 6817 0000243D E939FF jmp ipt_16 6818 6819 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6820 ; set cylinder number to partition's start or end sector 6821 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6822 ; 27/10/2020 6823 6824 cylindernumberfix: 6825 ; ax = 1022 -> set start cylinder 6826 ; ax = 1023 -> set end cylinder 6827 ; di = partition table structure offset 6828 6829 ; modified registers: ax, dx, bx 6830 6831 00002440 3DFF03 cmp ax, 1023 6832 00002443 7343 jnb short cnf_4 ; set end cylinder 6833 6834 00002445 80BD[1970]FE cmp byte [part_table_start_head+di], 0FEh ; 254 6835 0000244A 753C jne short cnf_4 ; no need to fix (start cyl) 6836 ; 30/10/2020 6837 ; 28/10/2020 6838 0000244C 80BD[1A70]3F cmp byte [part_table_start_sector+di], 3Fh ; 63 6839 00002451 7535 jne short cnf_4 ; no need to fix (start cyl) 6840 ; 30/10/2020 6841 6842 00002453 8B85[2270] mov ax, [part_table_rel_sec_lw+di] ; start sector, lw 6843 00002457 8B95[2470] mov dx, [part_table_rel_sec_hw+di] ; start sector, hw 6844 0000245B 51 push cx 6845 0000245C 8B0E[986D] mov cx, [hs] ; [heads*spt] 6846 00002460 E81AE8 call div32 6847 ; dx:ax = cylinder number, dx = 0, quotient 6848 ; bx = remainder 6849 00002463 59 pop cx 6850 00002464 09D2 or dx, dx 6851 00002466 751A jnz short cnf_2 ; invalid 6852 00002468 3B85[1B70] cmp ax, [part_table_start_cyl+di] 6853 ;je short cnf_5 6854 0000246C 7406 je short cnf_1 6855 0000246E 7212 jb short cnf_2 ; invalid 6856 00002470 8985[1B70] mov [part_table_start_cyl+di], ax ; change it 6857 ;jmp short cnf_5 6858 cnf_1: 6859 00002474 80BD[1E70]FE cmp byte [part_table_end_head+di], 0FEh ; 254 6860 00002479 7507 jne short cnf_2 ; no need to fix (also invalid) 6861 6862 ; 28/10/2020 6863 0000247B 80BD[1F70]3F cmp byte [part_table_end_sector+di], 3Fh ; 63 6864 00002480 7414 je short cnf_5 ; fix 6865 ; no need to fix (also invalid) 6866 cnf_2: 6867 00002482 C685[1870]FF mov byte [part_table_boot_ind+di], 0FFh ; invalid PTE 6868 cnf_3: 6869 00002487 C3 retn 6870 cnf_4: 6871 00002488 80BD[1E70]FE cmp byte [part_table_end_head+di], 0FEh ; 254 6872 0000248D 75F8 jne short cnf_3 ; no need to fix (end cyl) 6873 6874 ; 28/10/2020 6875 0000248F 80BD[1F70]3F cmp byte [part_table_end_sector+di], 3Fh ; 63 6876 00002494 75F1 jne short cnf_3 ; no need to fix (end cyl) 6877 cnf_5: 6878 00002496 8B85[2270] mov ax, [part_table_rel_sec_lw+di] ; start sector, lw 6879 0000249A 8B95[2470] mov dx, [part_table_rel_sec_hw+di] ; start sector, hw 6880 6881 0000249E 0385[2670] add ax, [part_table_num_sec_lw+di] ; number of sectors, lw 6882 000024A2 1395[2870] adc dx, [part_table_num_sec_hw+di] ; number of sectors, hw 6883 ;jc short cnf_2 6884 6885 000024A6 83E801 sub ax, 1 6886 000024A9 83DA00 sbb dx, 0 6887 ; dx:ax = end sector 6888 000024AC 51 push cx 6889 000024AD 8B0E[986D] mov cx, [hs] ; [heads*spt] 6890 000024B1 E8C9E7 call div32 6891 ; dx:ax = cylinder number, dx = 0, quotient 6892 ; bx = remainder 6893 000024B4 59 pop cx 6894 000024B5 09D2 or dx, dx 6895 000024B7 75C9 jnz short cnf_2 ; invalid 6896 000024B9 3B85[2070] cmp ax, [part_table_end_cyl+di] 6897 000024BD 74C8 je short cnf_3 ; same cylinder number 6898 000024BF 72C1 jb short cnf_2 ; invalid 6899 000024C1 8985[2070] mov [part_table_end_cyl+di], ax ; change it 6900 000024C5 C3 retn 6901 6902 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6903 ; sort partition table in (ending) cylinder number order 6904 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6905 ; 25/10/2020 (fdisk3.s) 6906 6907 ; 02/02/2019 (hdimage.s) 6908 6909 sort_partition_table: 6910 6911 ; INPUT -> none 6912 ; OUTPUT -> none 6913 6914 000024C6 31DB xor bx, bx 6915 ;jmp short sortpt_2 ; 25/10/2020 6916 sortpt_1: 6917 000024C8 889F[A86D] mov [bx+sort], bl ; 0 6918 000024CC FEC3 inc bl 6919 sortpt_2: 6920 000024CE 80FB04 cmp bl, 4 ; number of partition table entries to sort 6921 000024D1 72F5 jb short sortpt_1 6922 6923 ; Do a bubble sort 6924 6925 000024D3 EB04 jmp short sortpt_4 6926 sortpt_3: 6927 ; Sort until we don't do a swap 6928 6929 000024D5 08C9 or cl, cl ; sort changed ? 6930 000024D7 7450 jz short sortpt_8 ; no 6931 sortpt_4: 6932 000024D9 30C9 xor cl, cl 6933 6934 000024DB B301 mov bl, 1 6935 6936 000024DD B212 mov dl, 18 ; partition table structure size 6937 000024DF EB07 jmp short sortpt_6 6938 sortpt_5: 6939 000024E1 FEC3 inc bl 6940 6941 000024E3 80FB04 cmp bl, 4 6942 000024E6 73ED jnb short sortpt_3 6943 6944 sortpt_6: 6945 000024E8 8A87[A86D] mov al, [bx+sort] 6946 6947 000024EC F6E2 mul dl 6948 6949 000024EE 89C6 mov si, ax 6950 6951 000024F0 8BBC[2070] mov di, [part_table_end_cyl+si] 6952 6953 000024F4 8A87[A76D] mov al, [bx+sort-1] 6954 6955 000024F8 F6E2 mul dl ; * 18 6956 6957 000024FA 97 xchg di, ax 6958 6959 000024FB 3985[2070] cmp [part_table_end_cyl+di], ax ; previous > current 6960 000024FF 771A ja short sortpt_7 ; swap order indicators 6961 ; 31/10/2020 6962 ; current end cyl >= previous end cyl 6963 ; 31/10/2020 6964 00002501 72DE jb short sortpt_5 6965 ; current end cyl > previous end cyl 6966 6967 00002503 21C0 and ax, ax ; cylinder 0 ? 6968 00002505 75DA jnz short sortpt_5 ; no 6969 ; current end cyl = previous end cyl, cyl > 0 6970 6971 ; current end cyl = previous end cyl = 0 6972 6973 ; If current entry is empty partition entry 6974 ; and previous entry is not empty partition entry 6975 ; swap them. 6976 ; 6977 00002507 8B85[2870] mov ax, [part_table_num_sec_hw+di] ; previous entry 6978 0000250B 0B85[2670] or ax, [part_table_num_sec_lw+di] 6979 0000250F 74D0 jz short sortpt_5 6980 6981 00002511 8B84[2870] mov ax, [part_table_num_sec_hw+si] ; current entry 6982 00002515 0B84[2670] or ax, [part_table_num_sec_lw+si] 6983 00002519 75C6 jnz short sortpt_5 6984 sortpt_7: 6985 ; Swap the order indicators 6986 6987 0000251B 8B87[A76D] mov ax, [bx+sort-1] 6988 0000251F 86E0 xchg ah, al 6989 00002521 8987[A76D] mov [bx+sort-1], ax 6990 6991 00002525 B101 mov cl, 1 ; sort changed 6992 00002527 EBB8 jmp short sortpt_5 6993 6994 sortpt_8: 6995 ; 30/10/2020 6996 ;mov byte [p_sorted], 1 ; 04/02/2019 6997 6998 00002529 C3 retn 6999 7000 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7001 ; find free space before/after/between partitions 7002 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7003 ; 03/02/2019 7004 7005 find_part_free_space: ; find/calculate free space for partitions 7006 ; 15/02/2019 7007 7008 ; INPUT -> 7009 ; AL = 0 -> calculate for primary/MBR partitions 7010 ; AL = 5 -> calculate for extended partition 7011 ; OUTPUT -> 7012 ; CX = the largest free space/cylinders (between partitions) 7013 ; AX = Free space index (gap number) - from 0 to 4 - 7014 ; BX = Free space structure offset (for the largest free space) 7015 ; 7016 ; 22/02/2019 7017 ; [freespace_count] = number of free spaces/gaps 7018 7019 0000252A A2[C36F] mov [p_type], al 7020 7021 ; Sort the partition table 7022 7023 0000252D E896FF call sort_partition_table ; 16/02/2019 7024 7025 ; Initialize free space to zero 7026 7027 ; 15/02/2019 7028 00002530 BF[AC70] mov di, fspc ; free_space.space 7029 00002533 B92800 mov cx, 5*8 ; (5*16/2) 7030 00002536 31C0 xor ax, ax ; 0 7031 00002538 F3AB rep stosw 7032 7033 0000253A A2[C06F] mov [freespace_count], al ; 0 7034 ; 22/02/2019 7035 ;mov [last_found_partition], al ; 0 7036 7037 0000253D A3[BE6F] mov [_i_], ax ; 0 7038 ;jmp short fpfs_2 7039 ; 31/10/020 7040 00002540 EB0E jmp short fpfs_3 7041 fpfs_1: 7042 00002542 FE06[BE6F] inc byte [_i_] 7043 ;;fpfs_2: 7044 00002546 803E[BE6F]04 cmp byte [_i_], 4 7045 0000254B 7203 jb short fpfs_3 7046 0000254D E97601 jmp fpfs_13 7047 fpfs_3: 7048 ; Find space between start of disk and first partition 7049 7050 ;mov ax, [_i_] 7051 00002550 8B1E[BE6F] mov bx, [_i_] ; 31/10/2020 7052 fpfs_2: 7053 ;mov bx, ax ; 31/10/2020 7054 ;mov al, [sort+bx] 7055 00002554 8A8F[A86D] mov cl, [sort+bx] ; 15/02/2019 7056 7057 ;mov cl, 18 ; partition table structure size = 18 bytes 7058 00002558 B012 mov al, 18 ; 15/02/2019 7059 0000255A F6E1 mul cl 7060 0000255C 89C3 mov bx, ax 7061 7062 0000255E 80BF[1D70]00 cmp byte [part_table_sys_id+bx], 0 7063 00002563 74DD je short fpfs_1 7064 7065 00002565 880E[C26F] mov [last_found_partition], cl ; 15/02/2019 7066 7067 ;xor cx, cx 7068 00002569 30C9 xor cl, cl ; 0 7069 ;mov al, 1 ; LBA = 1 (after MBR) ; ah = 0 7070 ; 03/11/2020 7071 0000256B A0[6E3F] mov al, [sectors] ; 63 or 17 ; 03/11/2020 7072 7073 0000256E 803E[C36F]05 cmp byte [p_type], 5 ; EXTENDED 7074 00002573 7506 jne short fpfs_4 7075 7076 ; This is a special case - the extended partition can not start 7077 ; on cylinder 0 due to its architecture. Protect against that here 7078 7079 ; 13/02/2019 7080 ; LBA value of free space start 7081 ;mov al, [sectors] ; 03/11/2020 7082 00002575 F626[703F] mul byte [heads] 7083 ; ax = start sector (for Extended Partition) 7084 00002579 FEC1 inc cl ; 1 ; cx = start cylinder = 1 7085 fpfs_4: 7086 ; Found a partition, get the space 7087 7088 ; 15/02/2019 7089 0000257B 8B97[1B70] mov dx, [part_table_start_cyl+bx] 7090 ; Start cylinder of the 1st partition (as sorted) 7091 0000257F 39CA cmp dx, cx ; (cx=0 for primary partition, cx=1 for extd partition) 7092 00002581 0F86C300 jna fpfs_9 ; It is accepted as free (partition) space 7093 ; if this space between masterboot sector and partition 1 7094 ; has 1 cylinder (heads*spt) size at least. 7095 ; 22/02/2019 7096 00002585 31FF xor di, di ; 0 ; Reset Free Space Table offset 7097 7098 00002587 FE06[C06F] inc byte [freespace_count] ; mov byte [freespace_count], 1 7099 7100 0000258B 890E[AE70] mov [free_space.start], cx ; 0 (for PP) or 1 (for EP) 7101 7102 ; non-aligned address of start sector (for the 1st partition as sorted) 7103 ; NOTE: later, start sector will be moved to (chs) head 1 and sector 1 7104 ; if new partition will be selected as a primary dos partition. 7105 ; (But, start sector -LBA- will not be changed 7106 ; if it is a non-dos or user input type partition.. unless 7107 ; cylinder boundary alignment option is used.) 7108 7109 0000258F A3[B870] mov [free_space.startsector], ax ; = [sectors]*[heads] (for EP) 7110 ; or 1 (for PP) 7111 ;mov [free_space.startsector+2], 0 7112 7113 ; free space ends before start of next valid partition 7114 00002592 89D0 mov ax, dx ; start cylinder of partition 1 (as sorted) 7115 00002594 29CA sub dx, cx ; cylinder count of free space 1 (gap 1) 7116 00002596 48 dec ax ; end cylinder of free space 1 (gap 1) 7117 00002597 A3[B070] mov [free_space.end], ax 7118 0000259A 8916[AC70] mov [free_space.space], dx 7119 7120 ; save free space (1) as (non-aligned) sector count 7121 0000259E 8B87[2270] mov ax, [part_table_rel_sec_lw+bx] 7122 000025A2 8B97[2470] mov dx, [part_table_rel_sec_hw+bx] 7123 000025A6 2B06[B870] sub ax, [free_space.startsector] 7124 000025AA 83DA00 sbb dx, 0 7125 000025AD A3[B470] mov [free_space.sectors_unused], ax 7126 000025B0 8916[B670] mov [free_space.sectors_unused+2], dx 7127 7128 ;mov ax, [free_space.space] 7129 7130 ;call cylinders_to_sectors 7131 7132 ;mov [free_space.sectors_unused], ax 7133 ;mov [free_space.sectors_unused+2], dx 7134 7135 000025B4 8B0E[723F] mov cx, [cylinders] ; Total (disk) cylinders -divisor- 7136 000025B8 8B1E[AC70] mov bx, [free_space.space] ; Partition cylinders -dividend- 7137 7138 000025BC E8F801 call cylinders_to_percent 7139 7140 000025BF A3[B270] mov [free_space.percent_unused], ax 7141 7142 ; 15/02/2019 7143 ;mov bl, [_i_] 7144 ;xor bh, bh 7145 ;mov al, [sort+bx] 7146 7147 ;mov [last_found_partition], al 7148 7149 ; 31/10/2020 7150 000025C2 E98300 jmp fpfs_9 7151 7152 ; Look for space between the rest of the partitions 7153 7154 fpfs_7: 7155 ; ah = 0 7156 ;mov al, [_i_] 7157 ;;cbw 7158 ;mov bx, ax 7159 ; 22/02/2019 7160 000025C5 8B1E[BE6F] mov bx, [_i_] 7161 7162 ; 15/02/2019 7163 ;mov al, [sort+bx] 7164 000025C9 8A8F[A86D] mov cl, [sort+bx] 7165 ;mov bl, 18 7166 ;mul bl 7167 000025CD B012 mov al, 18 7168 000025CF F6E1 mul cl 7169 000025D1 89C6 mov si, ax 7170 7171 000025D3 80BC[1D70]00 cmp byte [part_table_sys_id+si], 0 7172 000025D8 746E je short fpfs_9 7173 7174 ; 15/02/2019 7175 000025DA 860E[C26F] xchg [last_found_partition], cl 7176 7177 ; Check to see if more than one partition on a cylinder 7178 ; If so, leave the space at zero */ 7179 7180 ; NOTE: 7181 ; It is accepted as valid free (partition) space 7182 ; if free space (gap) between partitions 7183 ; has 1 cylinder (heads*spt) size at least. 7184 7185 000025DE B012 mov al, 18 ; Partition tables/data structure size = 18 bytes 7186 000025E0 F6E1 mul cl 7187 000025E2 89C3 mov bx, ax ; ah = 0 7188 7189 000025E4 8B97[2070] mov dx, [part_table_end_cyl+bx] ; end cyl. of previous partition 7190 000025E8 8B84[1B70] mov ax, [part_table_start_cyl+si] ; start cyl. of current partition 7191 7192 000025EC 42 inc dx ; start cylinder of free space is after the end cylinder of 7193 ; the previous partition (as sorted) 7194 7195 000025ED 39D0 cmp ax, dx ; and it must be before than the next partition (as sorted) 7196 000025EF 7657 jna short fpfs_9 ; je short fpfs_9 7197 7198 ; No, things are normal 7199 ; Get space between the end of the last one and the start of the next one 7200 7201 ; 22/02/2019 7202 ;add di, 16 7203 000025F1 8B3E[C06F] mov di, [freespace_count] 7204 000025F5 C1E704 shl di, 4 ; * 16 ; next entry offset (in free space table) 7205 7206 000025F8 FE06[C06F] inc byte [freespace_count] 7207 7208 000025FC 89C1 mov cx, ax 7209 000025FE 29D1 sub cx, dx 7210 00002600 48 dec ax 7211 00002601 8995[AE70] mov [free_space.start+di], dx 7212 00002605 8985[B070] mov [free_space.end+di], ax 7213 00002609 898D[AC70] mov [free_space.space+di], cx 7214 7215 ;mov ax, [free_space.space+di] 7216 ;call cylinders_to_sectors 7217 ;mov [free_space.sectors_unused+di], ax 7218 ;mov [free_space.sectors_unused+2+di], dx 7219 7220 ; calculate and save (non-aligned) free sector count between partitions 7221 7222 0000260D 8B87[2270] mov ax, [part_table_rel_sec_lw+bx] 7223 00002611 8B97[2470] mov dx, [part_table_rel_sec_hw+bx] 7224 00002615 0387[2670] add ax, [part_table_num_sec_lw+bx] 7225 00002619 1397[2870] adc dx, [part_table_num_sec_hw+bx] 7226 7227 0000261D 8B8C[2270] mov cx, [part_table_rel_sec_lw+si] 7228 00002621 8B9C[2470] mov bx, [part_table_rel_sec_hw+si] 7229 7230 00002625 8985[B870] mov [free_space.startsector+di], ax 7231 00002629 8995[BA70] mov [free_space.startsector+2+di], dx 7232 7233 0000262D 29C1 sub cx, ax 7234 0000262F 19D3 sbb bx, dx 7235 7236 00002631 898D[B470] mov [free_space.sectors_unused+di], cx 7237 00002635 899D[B670] mov [free_space.sectors_unused+2+di], bx 7238 7239 fpfs_8: 7240 ; NOTE: Percentage is based on cylinder-boundary aligned partition size. 7241 ; (total disk cylinders and partition's cylinder count are used for that) 7242 7243 00002639 8B0E[723F] mov cx, [cylinders] ; -divisor- 7244 0000263D 8B9D[AC70] mov bx, [free_space.space+di] ; -dividend- 7245 00002641 E87301 call cylinders_to_percent 7246 7247 00002644 8985[B270] mov [free_space.percent_unused+di], ax 7248 7249 ; ah = 0 7250 7251 ; 15/02/2019 7252 ;mov bl, [_i_] 7253 ;xor bh, bh 7254 ;mov al, [sort+bx] 7255 ; 7256 ;mov [last_found_partition], al 7257 7258 fpfs_9: 7259 00002648 FE06[BE6F] inc byte [_i_] 7260 fpfs_10: 7261 0000264C 803E[BE6F]04 cmp byte [_i_], 4 7262 00002651 7303 jnb short fpfs_11 7263 7264 00002653 E96FFF jmp fpfs_7 7265 7266 fpfs_11: 7267 ; Find the space between the last partition and the end of the disk 7268 ; Make sure that freespace cannot become negative 7269 7270 00002656 A0[C26F] mov al, [last_found_partition] 7271 00002659 B112 mov cl, 18 ; Partition table structure size = 18 bytes 7272 0000265B F6E1 mul cl 7273 0000265D 89C3 mov bx, ax 7274 0000265F 8B0E[723F] mov cx, [cylinders] 7275 00002663 49 dec cx ; 15/02/2019 7276 ; (min. cylinder count = 1 for a valid/usable free space) 7277 00002664 8B87[2070] mov ax, [part_table_end_cyl+bx] 7278 ;cmp [part_table_end_cyl+bx], cx 7279 00002668 39C8 cmp ax, cx ; cx = end cylinder of the disk 7280 0000266A 7203 jb short fpfs_12 7281 0000266C E9A400 jmp fpfs_15 7282 fpfs_12: 7283 ; 22/02/2019 7284 0000266F 8B3E[C06F] mov di, [freespace_count] 7285 00002673 C1E704 shl di, 4 ; * 16 ; next entry offset (in free space table) 7286 7287 00002676 FE06[C06F] inc byte [freespace_count] 7288 7289 0000267A 898D[B070] mov [free_space.end+di], cx ; end cyl. of free space 5 (gap 5) 7290 ;mov ax, [part_table_end_cyl+bx] 7291 7292 ;mov dx, cx 7293 ;sub dx, ax 7294 ;mov [free_space.space+di], dx ; di = 4*16 7295 ; 12/03/2021 7296 ; ax = end cylinder of the last partition 7297 ; cx = end cylinder of the disk 7298 0000267E 29C1 sub cx, ax 7299 00002680 898D[AC70] mov [free_space.space+di], cx ; di = 4*16 7300 7301 00002684 40 inc ax 7302 00002685 8985[AE70] mov [free_space.start+di], ax 7303 7304 ;inc cx ; [cylinders] 7305 ;mov ax, [free_space.space+si] 7306 ;call cylinders_to_sectors 7307 ;mov [free_space.sectors_unused+di], ax 7308 ;mov [free_space.sectors_unused+2+di], dx 7309 7310 ; calculate and save (non-aligned) free sector count 7311 7312 ; 22/02/2019 7313 00002689 8B87[2270] mov ax, [part_table_rel_sec_lw+bx] 7314 0000268D 8B97[2470] mov dx, [part_table_rel_sec_hw+bx] 7315 00002691 0387[2670] add ax, [part_table_num_sec_lw+bx] 7316 00002695 1397[2870] adc dx, [part_table_num_sec_hw+bx] 7317 7318 00002699 8985[B870] mov [free_space.startsector+di], ax 7319 0000269D 8995[BA70] mov [free_space.startsector+2+di], dx 7320 7321 000026A1 8B0E[DA68] mov cx, [total_sectors] 7322 000026A5 8B1E[DC68] mov bx, [total_sectors+2] 7323 000026A9 29C1 sub cx, ax 7324 000026AB 19D3 sbb bx, dx 7325 000026AD 898D[B470] mov [free_space.sectors_unused+di], cx 7326 000026B1 899D[B670] mov [free_space.sectors_unused+2+di], bx 7327 7328 000026B5 8B0E[723F] mov cx, [cylinders] 7329 000026B9 8B9D[AC70] mov bx, [free_space.space+di] 7330 000026BD E8F700 call cylinders_to_percent 7331 000026C0 8985[B270] mov [free_space.percent_unused+di], ax 7332 000026C4 EB4D jmp short fpfs_15 7333 7334 fpfs_13: 7335 ; No partitions found, show entire space as free 7336 7337 ; 22/02/2019 7338 000026C6 FE06[C06F] inc byte [freespace_count] ; mov byte [freespace_count], 1 7339 7340 ; 15/02/2019 7341 ;sub ax, ax 7342 ; ah = 0 ; 31/10/2020 7343 000026CA 29D2 sub dx, dx 7344 7345 ;inc al ; LBA = 1 (after MBR) ; ah = 0 7346 000026CC B001 mov al, 1 ; 25/02/2019 7347 7348 ;This is a special case - the extended partition can not start 7349 ;on cylinder 0 due to its architecture. Protect against that here 7350 7351 000026CE 803E[C36F]05 cmp byte [p_type], 5 ; EXTENDED 7352 000026D3 7509 jne short fpfs_14 7353 7354 000026D5 FEC2 inc dl 7355 7356 ; 15/02/2019 7357 ; LBA value of free space start 7358 000026D7 A0[6E3F] mov al, [sectors] 7359 000026DA F626[703F] mul byte [heads] 7360 ; ax = start sector (for Extended Partition) 7361 fpfs_14: 7362 000026DE 8916[AE70] mov [free_space.start], dx ; 0 or 1 7363 7364 ; non-aligned address of start sector (for the 1st partition as sorted) 7365 ; NOTE: later, start sector will be moved to (chs) head 1 and sector 1 7366 ; if new partition will be selected as a primary dos partition. 7367 7368 000026E2 A3[B870] mov [free_space.startsector], ax ; = [sectors]*[heads] (for EP) 7369 ; or 1 (for PP) 7370 ;mov [free_space.startsector+2], 0 7371 7372 000026E5 A1[723F] mov ax, [cylinders] ; disk capacity 7373 000026E8 89C1 mov cx, ax 7374 000026EA 48 dec ax 7375 000026EB A3[B070] mov [free_space.end], ax 7376 000026EE 29D0 sub ax, dx 7377 000026F0 40 inc ax 7378 000026F1 A3[AC70] mov [free_space.space], ax 7379 7380 000026F4 A1[DA68] mov ax, [total_sectors] 7381 000026F7 8B16[DC68] mov dx, [total_sectors+2] 7382 000026FB 2B06[B870] sub ax, [free_space.startsector] 7383 000026FF 83DA00 sbb dx, 0 7384 00002702 A3[B470] mov [free_space.sectors_unused], ax 7385 00002705 8916[B670] mov [free_space.sectors_unused+2], dx 7386 7387 ;mov cx, [cylinders] 7388 00002709 8B1E[AC70] mov bx, [free_space.space] 7389 0000270D E8A700 call cylinders_to_percent 7390 00002710 A3[B270] mov [free_space.percent_unused], ax 7391 7392 fpfs_15: 7393 ; Find largest free space 7394 00002713 29C9 sub cx, cx 7395 ; 22/02/2019 7396 00002715 29C0 sub ax, ax 7397 00002717 31DB xor bx, bx 7398 00002719 8A16[C06F] mov dl, [freespace_count] 7399 0000271D 08D2 or dl, dl 7400 0000271F 7420 jz short fpfs_19 7401 00002721 8816[BE6F] mov [_i_], dl 7402 fpfs_16: 7403 00002725 8B97[AC70] mov dx, [free_space.space+bx] 7404 00002729 39CA cmp dx, cx 7405 0000272B 7604 jbe short fpfs_17 7406 ; 22/02/2019 7407 0000272D 89D1 mov cx, dx ; Largest free space 7408 0000272F 89D8 mov ax, bx 7409 fpfs_17: 7410 00002731 FE0E[BE6F] dec byte [_i_] 7411 00002735 7405 jz short fpfs_18 7412 7413 00002737 83C310 add bx, 16 ; Free space structure size 7414 0000273A EBE9 jmp short fpfs_16 7415 fpfs_18: 7416 ; 22/02/2019 7417 0000273C 89C3 mov bx, ax ; offset (from 0 to 64) 7418 0000273E C0E804 shr al, 4 ; index (from 0 to 4) 7419 fpfs_19: 7420 00002741 C3 retn 7421 7422 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7423 ; find enough free space 7424 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7425 7426 ; ; 15/02/2019 7427 ;find_enough_free_space: 7428 ; ; Find enough free space 7429 ; ; 7430 ; ; INPUT: 7431 ; ; AX = Requested space (in cylinders) 7432 ; ; 22/02/2019 7433 ; ; [freespace_count] = number of free spaces/gaps 7434 ; ; OUTPUT: 7435 ; ; AX = Available space 7436 ; DX = Requested space 7437 ; ; If CF = 0 -> AX >= DX 7438 ; ; If CF = 1 -> AX < DX 7439 ; ; CX = Index of available space in free space structure 7440 ; ; (GAP number, 0 to 4) - if AX > 0 - 7441 ; 7442 ; mov dx, ax ; 22/02/2019 7443 ; sub ax, ax 7444 ; xor bx, bx 7445 ; ; 22/02/2019 7446 ; mov ch, [freespace_count] 7447 ; mov [_i_], ax ; 0 7448 ; jmp short fefs_1 7449 ;fefs_0: 7450 ; ;mov al, 16 7451 ; ;mul byte [_i_] 7452 ; ;mov bx, ax 7453 ; mov bl, [_i_] 7454 ; shl bl, 4 ; * 16 7455 ;fefs_1: 7456 ; mov ax, [free_space.space+bx] 7457 ; and ax, ax 7458 ; jz short fefs_2 ; not a free space 7459 ; mov cl, [_i_] 7460 ; cmp ax, dx 7461 ; jnb short fefs_3 ; enough space 7462 ;fefs_2: 7463 ; ; 22/02/2019 7464 ; inc byte [_i_] 7465 ; cmp byte [_i_], ch 7466 ; jb short fefs_0 7467 ; sub ch, ch 7468 ; stc 7469 ; retn 7470 ;fefs_3: 7471 ; xor ch, ch 7472 ; retn 7473 7474 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7475 ; find enough free sectors 7476 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7477 7478 ; 15/02/2019 7479 find_enough_free_sectors: 7480 ; Find (first) enough free space in sectors 7481 ; 7482 ; INPUT: 7483 ; DX:AX = Requested space (as non-aligned free sectors) 7484 ; 22/02/2019 7485 ; [freespace_count] = number of free spaces/gaps 7486 ; OUTPUT: 7487 ; DX:AX = Available space 7488 ; If CF = 0 -> DX:AX >= Request 7489 ; If CF = 1 -> DX:AX < Request 7490 ; CX = Index of available space in free space structure 7491 ; (GAP number, 0 to 4) - if DX:AX > 0 - 7492 7493 00002742 31FF xor di, di 7494 00002744 31F6 xor si, si 7495 00002746 31DB xor bx, bx 7496 ; 22/02/2019 7497 00002748 8A2E[C06F] mov ch, [freespace_count] 7498 0000274C 891E[BE6F] mov [_i_], bx ; 0 7499 00002750 EB07 jmp short fefss_1 7500 fefss_0: 7501 ;mov al, 16 7502 ;mul byte [_i_] 7503 ;mov bx, ax 7504 00002752 8B1E[BE6F] mov bx, [_i_] 7505 00002756 C0E304 shl bl, 4 ; * 16 7506 fefss_1: 7507 00002759 81C3[B470] add bx, free_space.sectors_unused 7508 0000275D 3B5702 cmp dx, [bx+2] 7509 00002760 7230 jb short fefss_7 7510 00002762 7706 ja short fefss_2 7511 00002764 3B07 cmp ax, [bx] 7512 00002766 742F je short fefss_8 7513 00002768 7228 jb short fefss_7 ; 18/02/2019 7514 fefss_2: 7515 ; 30/10/2020 7516 ;cmp word [bx], 0 7517 ;jne short fefss_3 7518 ;cmp word [bx+2], 0 7519 ;je short fefss_6 7520 fefss_3: 7521 0000276A 3B7F02 cmp di, [bx+2] 7522 0000276D 7711 ja short fefss_6 7523 0000276F 7405 je short fefss_4 7524 00002771 8B7F02 mov di, [bx+2] 7525 00002774 EB04 jmp short fefss_5 7526 fefss_4: 7527 00002776 3B37 cmp si, [bx] 7528 00002778 7306 jnb short fefss_6 7529 fefss_5: 7530 0000277A 8B37 mov si, [bx] 7531 ; 22/02/2019 7532 0000277C 8A0E[BE6F] mov cl, [_i_] 7533 fefss_6: 7534 00002780 FE06[BE6F] inc byte [_i_] 7535 00002784 382E[BE6F] cmp byte [_i_], ch ; [freespace_count] 7536 00002788 72C8 jb short fefss_0 7537 7538 0000278A 89F0 mov ax, si 7539 0000278C 89FA mov dx, di 7540 0000278E 30ED xor ch, ch 7541 00002790 F9 stc 7542 00002791 C3 retn 7543 fefss_7: 7544 00002792 8B07 mov ax, [bx] 7545 00002794 8B5702 mov dx, [bx+2] 7546 fefss_8: 7547 00002797 8B0E[BE6F] mov cx, [_i_] 7548 0000279B C3 retn 7549 7550 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7551 ; get first free partition table entry 7552 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7553 7554 ; 16/02/2019 7555 get_first_free_pte: 7556 ; Find free partition table entry 7557 ; 7558 ; INPUT: 7559 ; none 7560 ; OUTPUT: 7561 ; If CF = 0 -> CX = partition table entry number 7562 ; If CF = 1 -> there is not a free entry in partition table 7563 7564 0000279C BE[9857] mov si, MasterBootBuff+pTableOffset 7565 0000279F 31C9 xor cx, cx 7566 gffp_1: 7567 000027A1 8A4404 mov al, [si+ptFileSystemID] ; 23/02/2019 7568 7569 000027A4 20C0 and al, al 7570 000027A6 740E jz short gffp_3 ; empty 7571 7572 000027A8 80F903 cmp cl, 3 7573 000027AB 7307 jnb short gffp_2 7574 7575 000027AD FEC1 inc cl 7576 000027AF 83C610 add si, 16 ; Partition table entry size 7577 000027B2 EBED jmp short gffp_1 7578 gffp_2: 7579 ; CL = 3 7580 000027B4 F9 stc 7581 000027B5 C3 retn 7582 gffp_3: 7583 ; CL = PTE number (0 to 3) 7584 000027B6 C3 retn 7585 7586 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7587 ; convert cylinder count to sectors 7588 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7589 ; 03/02/2019 7590 7591 ; 15/03/2021 7592 ;cylinders_to_sectors: 7593 ; INPUT: 7594 ; ax = Cylinders (Total or partition's cylinder count) 7595 ; OUTPUT: 7596 ; dx:ax = Sectors 7597 7598 ;;mov dx, [heads] 7599 ;;mul dx 7600 ;; 30/10/2020 7601 ;mul word [heads] 7602 ;; dx:ax = Number of tracks (cylinders*heads) 7603 ;mov cx, [sectors] 7604 ;call mul32 7605 ; ; dx:ax = Number of sectors 7606 ;retn 7607 7608 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7609 ; convert cylinder count to percent of disk size (total cylinders) 7610 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7611 ; 03/02/2019 7612 7613 cylinders_to_percent: 7614 7615 ; INPUT: 7616 ; bx = Number of cylinders (of partition) -dividend- 7617 ; cx = Total cylinders -divisor- 7618 ; OUTPUT: 7619 ; ax = Percentage 7620 7621 ; if (cylinders_in == 0) 7622 ; percentage_out = 0; 7623 ; else if (total_cylinders == 0) 7624 ; percentage_out = 0; 7625 ; else 7626 7627 000027B7 09DB or bx, bx 7628 000027B9 741B jz short ctpc_6 ; ax = 0 = percentage_out 7629 ctpc_1: 7630 000027BB 09C9 or cx, cx 7631 000027BD 7417 jz short ctpc_6 7632 7633 000027BF B86400 mov ax, 100 7634 000027C2 F7E3 mul bx ; [cylinders_in] 7635 7636 ; dx:ax = Dividend 7637 7638 000027C4 E8B6E4 call div32 ; 100*cylinders_in / total_cylinders 7639 ; DX:AX = Quotient 7640 ; BX = Remainder 7641 7642 ; ax = percentage_out 7643 7644 ; 12/03/2021 7645 000027C7 D1E9 shr cx, 1 7646 7647 000027C9 39CB cmp bx, cx ; is remainder >= total_cylinders/2 ? 7648 000027CB 7201 jb short ctpc_5 ; No. 7649 ctpc_4: 7650 000027CD 40 inc ax 7651 ctpc_5: 7652 000027CE 83F864 cmp ax, 100 7653 000027D1 7603 jbe short ctpc_6 7654 000027D3 B86400 mov ax, 100 7655 ctpc_6: 7656 000027D6 C3 retn 7657 7658 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7659 ; display partition table 7660 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7661 ; 04/02/2019 7662 7663 ; 12/03/2021 7664 display_partition_table_x: 7665 000027D7 B005 mov al, 5 ; display extended partition table 7666 000027D9 EB02 jmp short dpt_x 7667 7668 display_partition_table: 7669 7670 ; INPUT: 7671 ; al = 0 for MBR 7672 ; = 5 for EBR (logical drives in extended partition) 7673 ; OUTPUT: 7674 ; none 7675 7676 ; 12/03/2021 7677 000027DB 30C0 xor al, al ; display primary partition table 7678 dpt_x: 7679 ;pt_positions: 7680 n_pos equ 30 ; 1 byte 7681 7682 000027DD A2[C46F] mov [_e_], al 7683 7684 ; clear screen 7685 000027E0 B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 7686 000027E3 CD10 int 10h 7687 7688 000027E5 803E[C46F]05 cmp byte [_e_], 5 7689 000027EA 7507 jne short dpt_1 7690 dpt_0: 7691 000027EC BD[6470] mov bp, ext_table_boot_ind 7692 000027EF B045 mov al, 'E' 7693 000027F1 EB05 jmp short dpt_4 7694 dpt_1: 7695 000027F3 BD[1870] mov bp, part_table_boot_ind 7696 000027F6 B04D mov al, 'M' 7697 dpt_4: 7698 000027F8 BE[3458] mov si, p_table_header 7699 000027FB 88441E mov [si+n_pos], al 7700 000027FE E881F3 call print_msg 7701 7702 00002801 31DB xor bx, bx 7703 00002803 891E[BE6F] mov [_i_], bx 7704 dpt_5: 7705 00002807 FE06[BE6F] inc byte [_i_] 7706 7707 ; BX = partition entry (0 to 3) 7708 ; BP = partition table structure address 7709 7710 0000280B E86600 call display_pt_entry ; display partition table row 7711 7712 0000280E 8B1E[BE6F] mov bx, [_i_] 7713 7714 00002812 80FB04 cmp bl, 4 7715 00002815 72F0 jb short dpt_5 7716 7717 00002817 BE[7559] mov si, p_table_footer 7718 0000281A E865F3 call print_msg 7719 7720 ; 27/02/2019 7721 0000281D BF[8B55] mov di, str_disk_sectors 7722 7723 00002820 803E[C46F]05 cmp byte [_e_], 5 7724 00002825 741D je short dpt_9 7725 7726 ; display total disk sectors 7727 7728 ;mov di, str_disk_sectors 7729 7730 ;cmp byte [di], '0' 7731 ;jnb short dpt_8 7732 7733 00002827 A1[DA68] mov ax, [total_sectors] 7734 0000282A 8B16[DC68] mov dx, [total_sectors+2] 7735 7736 0000282E E82200 call dpt_10 7737 dpt_8: 7738 00002831 BE[7555] mov si, msg_disk_sectors 7739 dpt_11: 7740 00002834 E84BF3 call print_msg 7741 7742 00002837 BE[8B55] mov si, str_disk_sectors 7743 0000283A E845F3 call print_msg 7744 7745 0000283D BE[5F55] mov si, CRLF 7746 00002840 E83FF3 call print_msg 7747 7748 00002843 C3 retn 7749 7750 dpt_9: 7751 ; display extended partition size 7752 7753 00002844 A1[B66F] mov ax, [ep_Size] 7754 00002847 8B16[B86F] mov dx, [ep_Size+2] 7755 7756 0000284B E80500 call dpt_10 7757 7758 0000284E BE[9655] mov si, msg_ep_size 7759 00002851 EBE1 jmp short dpt_11 7760 7761 dpt_10: 7762 00002853 89E6 mov si, sp 7763 00002855 B90A00 mov cx, 10 7764 dpt_6: 7765 00002858 E822E4 call div32 7766 7767 0000285B 80C330 add bl, '0' 7768 0000285E 53 push bx 7769 0000285F 21C0 and ax, ax 7770 00002861 75F5 jnz short dpt_6 7771 00002863 21D2 and dx, dx 7772 00002865 75F1 jnz short dpt_6 7773 7774 00002867 29E6 sub si, sp 7775 00002869 D1EE shr si, 1 7776 dpt_7: 7777 0000286B 58 pop ax 7778 0000286C AA stosb 7779 0000286D 4E dec si 7780 0000286E 75FB jnz short dpt_7 7781 7782 00002870 30C0 xor al, al 7783 00002872 AA stosb 7784 7785 ; 27/02/2019 7786 00002873 C3 retn 7787 7788 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7789 ; display partition table entry/row 7790 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7791 ; 04/02/2019 7792 7793 struc ptbl 7794 7795 00000000 ?? .boot_ind: resb 1 7796 00000001 ?? .start_head: resb 1 7797 00000002 ?? .start_sector: resb 1 7798 00000003 ???? .start_cyl: resw 1 7799 00000005 ?? .sys_id: resb 1 7800 00000006 ?? .end_head: resb 1 7801 00000007 ?? .end_sector: resb 1 7802 00000008 ???? .end_cyl: resw 1 7803 0000000A ???? .rel_sec_lw: resw 1 7804 0000000C ???? .rel_sec_hw: resw 1 7805 0000000E ???? .num_sec_lw: resw 1 7806 00000010 ???? .num_sec_hw: resw 1 7807 .size: 7808 7809 endstruc 7810 7811 display_pt_entry: 7812 ; 24/10/2020 (fdisk3.s) 7813 7814 ; INPUT: 7815 ; bl = partition entry 7816 ; bh = 0 7817 ; bp = partition table structure address 7818 ; OUTPUT: 7819 ; none 7820 7821 ; 24/10/2020 (fdisk3.s) 7822 ;pt_positions: 7823 p_pos equ 3 ; 1 byte 7824 s_pos equ 6 ; 2+1 byte 7825 bh_pos equ 10 ; 2+1 bytes 7826 bs_pos equ 14 ; 2+1 bytes 7827 bc_pos equ 18 ; 2+1 bytes 7828 fs_pos equ 22 ; 2+1 bytes 7829 eh_pos equ 26 ; 2+1 bytes 7830 es_pos equ 30 ; 2+1 bytes 7831 ec_pos equ 34 ; 2+1 bytes 7832 rs_pos equ 42 ; 10 bytes 7833 ns_pos equ 53 ; 10 bytes 7834 fsx_pos equ 64 ; 14 bytes 7835 7836 ; 2019-2020 (hdimage.s) 7837 ;;pt_positions: 7838 ;p_pos equ 7 ; 1 byte 7839 ;s_pos equ 9 ; 2+1 byte 7840 ;bh_pos equ 13 ; 2+1 bytes 7841 ;bs_pos equ 17 ; 2+1 bytes 7842 ;bc_pos equ 21 ; 2+1 bytes 7843 ;fs_pos equ 25 ; 2+1 bytes 7844 ;eh_pos equ 29 ; 2+1 bytes 7845 ;es_pos equ 33 ; 2+1 bytes 7846 ;ec_pos equ 37 ; 2+1 bytes 7847 ;rs_pos equ 42 ; 7 bytes 7848 ;ns_pos equ 52 ; 7 bytes 7849 ;fsx_pos equ 61 ; 14 bytes 7850 7851 00002874 55 push bp ; 23/02/2019 7852 7853 00002875 08DB or bl, bl 7854 00002877 7406 jz short dpte_0 7855 7856 ;xor bh, bh 7857 00002879 B012 mov al, ptbl.size ; 18 7858 0000287B F6E3 mul bl 7859 0000287D 01C5 add bp, ax 7860 dpte_0: 7861 0000287F 807E0500 cmp byte [bp+ptbl.sys_id], 0 7862 00002883 0F861801 jna dpte_9 7863 7864 00002887 B768 mov bh, 'h' 7865 7866 00002889 BE[C66F] mov si, pte_row 7867 7868 ; clear partition table display buffer/row 7869 0000288C 89F7 mov di, si 7870 0000288E B92800 mov cx, 40 7871 00002891 B82020 mov ax, 2020h 7872 00002894 F3AB rep stosw 7873 7874 00002896 88D8 mov al, bl 7875 00002898 0431 add al, '1' 7876 0000289A 884403 mov [si+p_pos], al ; partition number '1' to '4' 7877 7878 ; partition status, type and CHS parameters 7879 ; (as hexadecimal number) 7880 7881 ;mov al, [bp+ptbl.boot_ind] 7882 0000289D 8A4600 mov al, [bp] 7883 000028A0 E8B5F3 call byte_to_hex 7884 7885 000028A3 894406 mov [si+s_pos], ax 7886 000028A6 887C08 mov [si+s_pos+2], bh ; 'h' 7887 7888 000028A9 8A4601 mov al, [bp+ptbl.start_head] 7889 000028AC E8A9F3 call byte_to_hex 7890 7891 000028AF 89440A mov [si+bh_pos], ax 7892 000028B2 887C0C mov [si+bh_pos+2], bh ; 'h' 7893 7894 000028B5 8B4E03 mov cx, [bp+ptbl.start_cyl] 7895 ; 28/10/2020 7896 000028B8 81F9FF03 cmp cx, 1023 7897 000028BC 7603 jna short dpte_10 ; cyl number is in CHS limit 7898 000028BE B9FF03 mov cx, 1023 ; fix cylinder number (to it's PTE value) 7899 ; to correct display PTE (CHS bytes) 7900 dpte_10: 7901 000028C1 C0E506 shl ch, 6 7902 000028C4 8A4602 mov al, [bp+ptbl.start_sector] 7903 000028C7 08E8 or al, ch 7904 000028C9 E88CF3 call byte_to_hex 7905 7906 000028CC 89440E mov [si+bs_pos], ax 7907 000028CF 887C10 mov [si+bs_pos+2], bh ; 'h' 7908 7909 ;mov al, [bp+ptbl.start_cyl] 7910 000028D2 88C8 mov al, cl 7911 000028D4 E881F3 call byte_to_hex 7912 7913 000028D7 894412 mov [si+bc_pos], ax 7914 000028DA 887C14 mov [si+bc_pos+2], bh ; 'h' 7915 7916 000028DD 8A4605 mov al, [bp+ptbl.sys_id] 7917 000028E0 E875F3 call byte_to_hex 7918 7919 000028E3 894416 mov [si+fs_pos], ax 7920 000028E6 887C18 mov [si+fs_pos+2], bh ; 'h' 7921 7922 000028E9 8A4606 mov al, [bp+ptbl.end_head] 7923 000028EC E869F3 call byte_to_hex 7924 7925 000028EF 89441A mov [si+eh_pos], ax 7926 000028F2 887C1C mov [si+eh_pos+2], bh ; 'h' 7927 7928 000028F5 8B4E08 mov cx, [bp+ptbl.end_cyl] 7929 ; 28/10/2020 7930 000028F8 81F9FF03 cmp cx, 1023 7931 000028FC 7603 jna short dpte_11 ; cyl number is in CHS limit 7932 000028FE B9FF03 mov cx, 1023 ; fix cylinder number (to it's PTE value) 7933 ; to correct display PTE (CHS bytes) 7934 dpte_11: 7935 00002901 C0E506 shl ch, 6 7936 00002904 8A4607 mov al, [bp+ptbl.end_sector] 7937 00002907 08E8 or al, ch 7938 00002909 E84CF3 call byte_to_hex 7939 7940 0000290C 89441E mov [si+es_pos], ax 7941 0000290F 887C20 mov [si+es_pos+2], bh ; 'h' 7942 7943 ;mov al, [bp+ptbl.end_cyl] 7944 00002912 88C8 mov al, cl 7945 00002914 E841F3 call byte_to_hex 7946 7947 00002917 894422 mov [si+ec_pos], ax 7948 0000291A 887C24 mov [si+ec_pos+2], bh ; 'h' 7949 7950 ; relative (start) sector address (lba) 7951 ; (as decimal number) 7952 7953 0000291D 8B460A mov ax, [bp+ptbl.rel_sec_lw] 7954 00002920 8B560C mov dx, [bp+ptbl.rel_sec_hw] 7955 7956 00002923 89E7 mov di, sp 7957 00002925 B90A00 mov cx, 10 7958 dpte_1: 7959 00002928 E852E3 call div32 7960 7961 0000292B 80C330 add bl, '0' 7962 0000292E 53 push bx 7963 0000292F 21C0 and ax, ax 7964 00002931 75F5 jnz short dpte_1 7965 00002933 21D2 and dx, dx 7966 00002935 75F1 jnz short dpte_1 7967 7968 00002937 8D5C31 lea bx, [si+rs_pos+7] 7969 7970 0000293A 29E7 sub di, sp 7971 0000293C D1EF shr di, 1 7972 0000293E 29FB sub bx, di 7973 dpte_2: 7974 00002940 58 pop ax 7975 00002941 8807 mov [bx], al 7976 00002943 4F dec di 7977 00002944 7403 jz short dpte_3 7978 7979 00002946 43 inc bx 7980 00002947 EBF7 jmp short dpte_2 7981 7982 dpte_3: 7983 ; number of sectors) 7984 ; (as decimal number) 7985 7986 00002949 8B460E mov ax, [bp+ptbl.num_sec_lw] 7987 0000294C 8B5610 mov dx, [bp+ptbl.num_sec_hw] 7988 7989 0000294F 89E7 mov di, sp 7990 ;mov cx, 10 7991 dpte_4: 7992 00002951 E829E3 call div32 7993 7994 00002954 80C330 add bl, '0' 7995 00002957 53 push bx 7996 00002958 21C0 and ax, ax 7997 0000295A 75F5 jnz short dpte_4 7998 0000295C 21D2 and dx, dx 7999 0000295E 75F1 jnz short dpte_4 8000 8001 00002960 8D5C3C lea bx, [si+ns_pos+7] 8002 8003 00002963 29E7 sub di, sp 8004 00002965 D1EF shr di, 1 8005 00002967 29FB sub bx, di 8006 dpte_5: 8007 00002969 58 pop ax 8008 0000296A 8807 mov [bx], al 8009 0000296C 4F dec di 8010 0000296D 7403 jz short dpte_6 8011 8012 0000296F 43 inc bx 8013 00002970 EBF7 jmp short dpte_5 8014 dpte_6: 8015 ; set file system name 8016 8017 00002972 8A4605 mov al, [bp+ptbl.sys_id] 8018 00002975 BF[8E40] mov di, valid_partitions 8019 00002978 B91300 mov cx, 19 8020 0000297B F2AE repnz scasb 8021 0000297D 7405 jz short dpte_7 8022 0000297F B8[8040] mov ax, FS_OTHERS 8023 00002982 EB0C jmp short dpte_8 8024 dpte_7: 8025 00002984 81EF[8F40] sub di, valid_partitions + 1 8026 00002988 B80E00 mov ax, 14 8027 0000298B F7E7 mul di 8028 0000298D 05[763F] add ax, FileSys_Names 8029 dpte_8: 8030 00002990 8D7C40 lea di, [si+fsx_pos] 8031 00002993 89C6 mov si, ax 8032 00002995 B107 mov cl, 7 8033 00002997 F3A5 rep movsw 8034 8035 00002999 BE[C66F] mov si, pte_row 8036 0000299C E8E3F1 call print_msg 8037 dpte_9: 8038 0000299F 5D pop bp ; 23/02/2019 8039 8040 000029A0 C3 retn 8041 8042 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8043 ; fix partition table 8044 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8045 ; 24/02/2019 8046 8047 partition_table_fix: 8048 ; DELETE or EXIT option for Invalid Partition Table Entry 8049 ; INPUT: 8050 ; DS:SI = PTE address in MBR buffer 8051 8052 000029A1 56 push si ; save PTE address 8053 8054 000029A2 89F0 mov ax, si 8055 000029A4 2D[9857] sub ax, MasterBootBuff+446 8056 000029A7 C0E804 shr al, 4 ; / 16 8057 000029AA 0431 add al, '1' 8058 000029AC A2[3C5F] mov [inv_pte_num], al 8059 8060 ; DS:SI = PTE address in MBR buffer 8061 000029AF E85EF7 call show_selected_partition 8062 8063 ;mov si, CRLF 8064 ;call print_msg 8065 8066 ; Warning message... 8067 8068 000029B2 BE[185F] mov si, msg_inv_pte 8069 000029B5 E8CAF1 call print_msg 8070 8071 000029B8 5F pop di ; restore PTE address 8072 ptf_0: 8073 000029B9 30E4 xor ah, ah 8074 000029BB CD16 int 16h 8075 8076 000029BD 3C0D cmp al, 13 8077 000029BF 7406 je short ptf_1 8078 8079 000029C1 3C1B cmp al, 27 8080 000029C3 75F4 jne short ptf_0 8081 8082 000029C5 F9 stc 8083 000029C6 C3 retn 8084 ptf_1: 8085 ; Clear that (invalid) PTE 8086 000029C7 31C0 xor ax, ax 8087 000029C9 B90800 mov cx, 8 8088 000029CC F3AB rep stosw 8089 8090 ; Clear screen 8091 000029CE B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 8092 000029D1 CD10 int 10h 8093 8094 000029D3 C3 retn 8095 8096 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8097 ; display (& edit) EXTENDED (DOS) partition table 8098 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8099 ; 28/02/2019 8100 8101 display_extended_pt: 8102 ;mov al, 5 ; extended partition (logical drives) 8103 ;call display_partition_table 8104 ; 12/03/2021 8105 000029D4 E800FE call display_partition_table_x 8106 8107 000029D7 BE[1061] mov si, ebr_editing_options 8108 000029DA E8A5F1 call print_msg 8109 8110 000029DD BE[1F5D] mov si, enter_opt_num_cancel_msg 8111 000029E0 E89FF1 call print_msg 8112 8113 000029E3 BE[5F55] mov si, CRLF 8114 000029E6 E899F1 call print_msg 8115 dept_1: 8116 000029E9 30E4 xor ah, ah 8117 000029EB CD16 int 16h 8118 8119 000029ED 3C30 cmp al, '0' 8120 000029EF 740C je short dept_2 8121 8122 000029F1 3C31 cmp al, '1' 8123 000029F3 7464 je short edit_ext_table_create 8124 000029F5 3C32 cmp al, '2' 8125 000029F7 7407 je short edit_ext_table_delete 8126 8127 000029F9 3C1B cmp al, 27 ; ESCape 8128 000029FB 75EC jne short dept_1 8129 dept_2: 8130 000029FD E907DA jmp A_42 8131 8132 edit_ext_table_delete: 8133 ; 28/02/2019 8134 ;mov al, 5 ; extended partition (logical drives) 8135 ;call display_partition_table 8136 ; 12/03/2021 8137 00002A00 E8D4FD call display_partition_table_x 8138 8139 00002A03 BE[8F61] mov si, msg_delete_ldd_q 8140 00002A06 E879F1 call print_msg 8141 8142 ;mov si, CRLF 8143 ;call print_msg 8144 eetd_1: 8145 00002A09 30E4 xor ah, ah 8146 00002A0B CD16 int 16h 8147 8148 00002A0D 3C1B cmp al, 27 8149 00002A0F 7410 je short eetd_2 8150 8151 00002A11 24DF and al, 0DFh 8152 00002A13 3C59 cmp al, 'Y' 8153 00002A15 7412 je short eetd_yes 8154 00002A17 3C4E cmp al, 'N' 8155 00002A19 75EE jne short eetd_1 8156 eetd_no: 8157 00002A1B BE[9F5C] mov si, msg_NO ; Write 'NO' (it may be shown for a moment) 8158 00002A1E E861F1 call print_msg 8159 eetd_2: 8160 00002A21 BE[5F55] mov si, CRLF ; Next line 8161 00002A24 E85BF1 call print_msg 8162 00002A27 EBAB jmp short display_extended_pt 8163 eetd_yes: 8164 00002A29 BE[995C] mov si, msg_YES ; Write 'YES' (it may be shown for a moment) 8165 00002A2C E853F1 call print_msg 8166 00002A2F BE[5F55] mov si, CRLF ; Next line 8167 00002A32 E84DF1 call print_msg 8168 00002A35 E88806 call delete_logical_drives 8169 00002A38 803E[A66D]00 cmp byte [ldrives], 0 8170 00002A3D 7795 ja short display_extended_pt 8171 00002A3F E9C5D9 jmp A_42 8172 8173 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8174 ; logical drive count limit error 8175 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8176 8177 eetc_2: 8178 00002A42 BE[F561] mov si, msg_create_ldd_max_error 8179 eetc_10: 8180 00002A45 E83AF1 call print_msg 8181 00002A48 BE[BB55] mov si, msg_press_any_key 8182 00002A4B E834F1 call print_msg 8183 00002A4E 30E4 xor ah, ah 8184 00002A50 CD16 int 16h 8185 00002A52 EB80 jmp display_extended_pt 8186 8187 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8188 ; no free space in extended partition 8189 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8190 8191 ; 05/03/2019 8192 eetc_9: 8193 00002A54 BE[2E64] mov si, msg_c_ldd_nofspc_error 8194 00002A57 EBEC jmp short eetc_10 8195 8196 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8197 ; create logical dos drive in EXTENDED (DOS) partition 8198 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8199 ; 19/10/2020 (fdisk3.s) 8200 8201 edit_ext_table_create: ; 01/03/2019 (hdimage.s) 8202 8203 ; Create Method: ; 04/03/2019 8204 ;LDD 1 <- LDD_START0, ebr 1st entry <- MBR (extended partition) - EBR 0 8205 ;LDD 2 <- LDD_START1, ebr 2nd entry <- EBR 1 8206 ;LDD 3 <- LDD_START2, ebr 2nd entry <- EBR 2 8207 ;LDD 4 <- LDD_START3, ebr 2nd entry <- EBR 3 8208 8209 ; 01/03/2019 8210 00002A59 803E[6370]00 cmp byte [epnumber], 0 ; check extended partition 8211 00002A5E 0F86C8E2 jna B_07 ; cancel with error message 8212 8213 ; 05/03/2019 8214 00002A62 E8EE02 call check_ext_free_space 8215 00002A65 72ED jc eetc_9 ; error, no free space in extented partition 8216 8217 ; 30/10/2020 8218 00002A67 A3[2271] mov [ep_free_sectors], ax 8219 00002A6A 8916[2471] mov [ep_free_sectors+2], dx 8220 8221 00002A6E 803E[A66D]04 cmp byte [ldrives], 4 8222 00002A73 73CD jnb eetc_2 ; error, write program limit message 8223 8224 edit_ext_table_create_x: ; 02/03/2019 8225 8226 ; Get logical drive size/cylinders (request) from user 8227 00002A75 E87303 call get_ldd_size 8228 00002A78 833E[2871]01 cmp word [lcylinders], 1 ; at least 1 cylinder 8229 00002A7D 0F8253FF jb display_extended_pt ; cancel 8230 8231 ; 03/03/2019 8232 00002A81 A0[A66D] mov al, [ldrives] 8233 8234 ;cmp byte [ldrives], 1 8235 ;jnb short eetc_3 ; skip verify MBR extended partition 8236 8237 00002A84 20C0 and al, al 8238 00002A86 757E jnz short eetc_3 8239 8240 00002A88 31ED xor bp, bp 8241 8242 ; Read MBR at EBR buffer 8243 00002A8A 30E4 xor ah, ah ; 19/10/2020 8244 00002A8C 31D2 xor dx, dx 8245 00002A8E BB[AC6D] mov bx, ebr_buffer 8246 00002A91 E8FDF0 call read_hd_sector 8247 00002A94 7218 jc short eetc_0 8248 8249 00002A96 A0[6370] mov al, [epnumber] 8250 00002A99 98 cbw 8251 00002A9A C0E004 shl al, 4 ; * 16 8252 00002A9D BE[6A6F] mov si, ebr_buffer+446 8253 00002AA0 01C6 add si, ax 8254 00002AA2 BF[9857] mov di, MasterBootBuff+446 8255 00002AA5 01C7 add di, ax 8256 00002AA7 B90800 mov cx, 8 8257 00002AAA F3A7 repe cmpsw ; repeat comparising while cx > 0 and zf = 1 8258 00002AAC E30C jcxz eetc_1 ; Extended partition entry is not changed 8259 ; Different PTE (means there is a new extended partition) 8260 eetc_0: 8261 ; Write current MBR (with modified PT) 8262 00002AAE BB[DA55] mov bx, MasterBootBuff 8263 00002AB1 31C0 xor ax, ax 8264 ;xor dx, dx 8265 00002AB3 E831F1 call write_hd_sector 8266 00002AB6 0F82D7DC jc print_error_code ; ! display error msg and then exit ! 8267 eetc_1: 8268 ; clear EBR buffer 8269 00002ABA BF[AC6D] mov di, ebr_buffer 8270 00002ABD 31C0 xor ax, ax 8271 00002ABF B9FF00 mov cx, 255 8272 00002AC2 F3AB rep stosw 8273 00002AC4 C70555AA mov word [di], 0AA55h 8274 8275 ; Set logical dos drive parameters in it's EBR 8276 00002AC8 BF[6A6F] mov di, ebr_buffer+446 8277 8278 00002ACB 8B0E[6E3F] mov cx, [sectors] 8279 00002ACF 29DB sub bx, bx ; 0 8280 00002AD1 A1[AE6F] mov ax, [ep_StartSector] 8281 00002AD4 8B16[B06F] mov dx, [ep_StartSector+2] 8282 8283 ; 03/03/2019 8284 ; set partition start address & size 8285 8286 00002AD8 A3[0271] mov [ldd_start], ax 8287 00002ADB 8916[0471] mov [ldd_start+2], dx 8288 8289 ; 01/11/2020 8290 00002ADF 833E[2871]FF cmp word [lcylinders], 65535 8291 ; sign for using all of available sectors 8292 00002AE4 7209 jb short eetc_11 8293 8294 00002AE6 A1[2271] mov ax, [ep_free_sectors] 8295 00002AE9 8B16[2471] mov dx, [ep_free_sectors+2] 8296 00002AED EB0B jmp short eetc_12 8297 eetc_11: 8298 00002AEF A0[703F] mov al, [heads] 8299 00002AF2 F626[6E3F] mul byte [sectors] 8300 00002AF6 F726[2871] mul word [lcylinders] 8301 eetc_12: 8302 ; 01/11/2020 8303 00002AFA 31ED xor bp, bp 8304 00002AFC A3[1271] mov [ldd_size], ax 8305 00002AFF 8916[1471] mov [ldd_size+2], dx 8306 8307 ; 1st ldd start sector is always 63 or 17 (= spt) 8308 ;sub ax, cx ; cx = 63 or 17, [sectors] 8309 ;sbb dx, bx ; sbb dx, 0 8310 8311 ; 01/11/2020 8312 00002B03 E9DE00 jmp eetc_4 8313 8314 ;mov [di+ptStartSector], cx 8315 ;mov [di+ptStartSector+2], bx 8316 ; 8317 ;; 01/11/2020 8318 ;mov [di+ptSectors], ax 8319 ;mov [di+ptSectors+2], dx 8320 ; 8321 ;mov cx, ax 8322 ;mov bx, dx 8323 ;; cx:bx = volume size of logical -dos- drive 8324 ; 8325 ;pop ax ; ldd's LBA 8326 ;pop dx 8327 ;; dx:ax = start sector address of ldd 8328 ; 8329 ;; 01/11/2020 8330 ;add cx, ax 8331 ;adc bx, dx 8332 ;sub cx, 1 8333 ;sbb bx, 0 8334 ;; bx:cx = end sector address of ldd 8335 ;push cx 8336 ;push bx 8337 ; 8338 ;jmp eetc_4 8339 8340 eetc_3: 8341 ; [ldrives] >= 1 8342 ; Read EBR 8343 ;mov al, [ldrives] 8344 00002B06 30E4 xor ah, ah ; 02/11/2020 8345 00002B08 C0E002 shl al, 2 8346 00002B0B 89C5 mov bp, ax 8347 8348 ; 03/03/2019 8349 00002B0D 8B86[FE70] mov ax, [bp+ldd_start-4] 8350 00002B11 8B96[0071] mov dx, [bp+ldd_start-2] 8351 00002B15 BB[AC6D] mov bx, ebr_buffer 8352 00002B18 E876F0 call read_hd_sector 8353 00002B1B 0F8272DC jc print_error_code ; ! display error msg and then exit ! 8354 8355 ; 04/03/2019 8356 00002B1F BE[7A6F] mov si, ebr_buffer+446+16 ; 2nd entry (next EBR) 8357 8358 ; 03/03/2019 8359 00002B22 8B86[FE70] mov ax, [bp+ldd_start-4] 8360 00002B26 8B96[0071] mov dx, [bp+ldd_start-2] 8361 00002B2A 0386[0E71] add ax, [bp+ldd_size-4] 8362 00002B2E 1396[1071] adc dx, [bp+ldd_size-2] 8363 8364 00002B32 8B0E[AE6F] mov cx, [ep_StartSector] 8365 00002B36 8B1E[B06F] mov bx, [ep_StartSector+2] 8366 8367 00002B3A 8986[0271] mov [bp+ldd_start], ax 8368 00002B3E 8996[0471] mov [bp+ldd_start+2], dx 8369 8370 00002B42 52 push dx ; ldd's start sector LBA 8371 00002B43 50 push ax 8372 8373 00002B44 29C8 sub ax, cx 8374 00002B46 19DA sbb dx, bx 8375 ; dx:ax = offset from start of the ep start sector 8376 8377 00002B48 894408 mov [si+ptStartSector], ax 8378 00002B4B 89540A mov [si+ptStartSector+2], dx 8379 8380 ; 01/11/2020 8381 00002B4E 833E[2871]FF cmp word [lcylinders], 65535 8382 ; sign for using all of available sectors 8383 00002B53 7209 jb short eetc_13 8384 8385 00002B55 A1[2271] mov ax, [ep_free_sectors] 8386 00002B58 8B16[2471] mov dx, [ep_free_sectors+2] 8387 00002B5C EB0B jmp short eetc_14 8388 eetc_13: 8389 00002B5E A0[703F] mov al, [heads] 8390 00002B61 F626[6E3F] mul byte [sectors] 8391 00002B65 F726[2871] mul word [lcylinders] 8392 eetc_14: 8393 ; 01/11/2020 8394 00002B69 8986[1271] mov [bp+ldd_size], ax 8395 00002B6D 8996[1471] mov [bp+ldd_size+2], dx 8396 8397 00002B71 89440C mov [si+ptSectors], ax 8398 00002B74 89540E mov [si+ptSectors+2], dx 8399 8400 ; 01/11/2020 8401 00002B77 89C1 mov cx, ax 8402 00002B79 89D3 mov bx, dx 8403 ; cx:bx = volume size of logical -dos- drive 8404 8405 00002B7B 58 pop ax ; ldd's start sector LBA 8406 00002B7C 5A pop dx 8407 8408 ; 01/11/2020 8409 00002B7D 01C1 add cx, ax 8410 00002B7F 11D3 adc bx, dx 8411 00002B81 83E901 sub cx, 1 8412 00002B84 83DB00 sbb bx, 0 8413 ; bx:cx = end sector address of ldd 8414 00002B87 51 push cx 8415 00002B88 53 push bx 8416 8417 ; calculate CHS from LBA 8418 00002B89 E80A02 call lba_to_chs 8419 ; ax = cylinder 8420 ; dl = sector 8421 ; dh = head 8422 8423 00002B8C C60400 mov byte [si+ptBootable], 0 8424 00002B8F 887401 mov [si+ptBeginHead], dh 8425 00002B92 884403 mov [si+ptBeginCylinder], al 8426 00002B95 C0E406 shl ah, 6 8427 00002B98 08E2 or dl, ah 8428 00002B9A 885402 mov [si+ptBeginSector], dl 8429 8430 ;;mov ax, [si+ptSectors] 8431 ;;mov dx, [si+ptSectors+2] 8432 ;mov ax, [bp+ldd_size] 8433 ;mov dx, [bp+ldd_size+2] 8434 ;sub ax, 1 8435 ;sbb dx, 0 8436 ;add ax, [bp+ldd_start] 8437 ;adc dx, [bp+ldd_start+2] 8438 ; ; dx:ax = end sector 8439 8440 ; 01/11/2020 8441 00002B9D 58 pop ax 8442 00002B9E 5A pop dx 8443 ; dx:ax = end sector address of ldd 8444 8445 00002B9F E8F401 call lba_to_chs 8446 ; ax = cylinder 8447 ; dl = sector 8448 ; dh = head 8449 ; 24/10/2020 8450 ; bl = Extended partition ID 8451 8452 ;mov byte [si+ptFileSystemID], 5 ; EXTENDED 8453 ; 24/10/2020 8454 00002BA2 885C04 mov [si+ptFileSystemID], bl ; EXTENDED ; 05h or 0Fh 8455 ; 8456 00002BA5 887405 mov [si+ptEndHead], dh 8457 00002BA8 884407 mov [si+ptEndCylinder], al 8458 00002BAB C0E406 shl ah, 6 8459 00002BAE 08D4 or ah, dl 8460 00002BB0 886406 mov [si+ptEndSector], ah 8461 8462 ; Write EBR 8463 00002BB3 8B86[FE70] mov ax, [bp+ldd_start-4] 8464 00002BB7 8B96[0071] mov dx, [bp+ldd_start-2] 8465 00002BBB BB[AC6D] mov bx, ebr_buffer 8466 00002BBE E826F0 call write_hd_sector 8467 00002BC1 0F82CCDB jc print_error_code ; ! display error msg and then exit ! 8468 8469 ; clear EBR buffer 8470 00002BC5 BF[AC6D] mov di, ebr_buffer 8471 00002BC8 31C0 xor ax, ax 8472 00002BCA B9FF00 mov cx, 255 8473 00002BCD F3AB rep stosw 8474 00002BCF C70555AA mov word [di], 0AA55h 8475 8476 00002BD3 BF[6A6F] mov di, ebr_buffer+446 ; 1st entry points to LDD 8477 8478 00002BD6 8B0E[6E3F] mov cx, [sectors] 8479 00002BDA 29DB sub bx, bx ; 0 8480 ; 01/11/2020 8481 00002BDC 8B86[1271] mov ax, [bp+ldd_size] 8482 00002BE0 8B96[1471] mov dx, [bp+ldd_size+2] 8483 ;sub ax, cx 8484 ;sbb dx, bx ; sbb dx, 0 8485 eetc_4: 8486 00002BE4 894D08 mov [di+ptStartSector], cx 8487 00002BE7 895D0A mov [di+ptStartSector+2], bx 8488 8489 ; 01/11/2020 8490 ; 1st ldd start sector is always 63 or 17 (= spt) 8491 00002BEA 29C8 sub ax, cx ; cx = 63 or 17, [sectors] 8492 00002BEC 19DA sbb dx, bx ; sbb dx, 0 8493 8494 ; 01/11/2020 8495 00002BEE 89450C mov [di+ptSectors], ax 8496 00002BF1 89550E mov [di+ptSectors+2], dx 8497 8498 00002BF4 8B8E[1271] mov cx, [bp+ldd_size] 8499 00002BF8 8B9E[1471] mov bx, [bp+ldd_size+2] 8500 ; cx:bx = volume size of logical -dos- drive 8501 8502 00002BFC 8B86[0271] mov ax, [bp+ldd_start] 8503 00002C00 8B96[0471] mov dx, [bp+ldd_start+2] 8504 ; dx:ax = start sector address of ldd (EBR addr) 8505 8506 ; 01/11/2020 8507 00002C04 01C1 add cx, ax 8508 00002C06 11D3 adc bx, dx 8509 00002C08 83E901 sub cx, 1 8510 00002C0B 83DB00 sbb bx, 0 8511 ; bx:cx = end sector address of ldd 8512 00002C0E 53 push bx 8513 00002C0F 51 push cx 8514 ;eetc_4: 8515 ; 01/11/2020 8516 ; stack = end sector address of ldd 8517 ; dx:ax = start sector address of ldd 8518 8519 ; calculate CHS from LBA 8520 8521 00002C10 E88301 call lba_to_chs 8522 ; ax = cylinder 8523 ; dl = sector 8524 ; dh = head 8525 8526 ;mov byte [di+ptBootable], 0 8527 00002C13 887501 mov [di+ptBeginHead], dh 8528 00002C16 884503 mov [di+ptBeginCylinder], al 8529 ;mov bl, ah 8530 ;shl bl, 6 8531 ;or dl, bl 8532 ; 01/11/2020 8533 00002C19 C0E406 shl ah, 6 8534 00002C1C 08E2 or dl, ah 8535 00002C1E 885502 mov [di+ptBeginSector], dl 8536 8537 ;add ax, [lcylinders] 8538 ;dec ax ; end cylinder 8539 ;mov bx, ax 8540 8541 ; 01/11/2020 8542 00002C21 58 pop ax 8543 00002C22 5A pop dx 8544 ; dx:ax = end sector address of ldd 8545 8546 00002C23 E87001 call lba_to_chs 8547 ; ax = cylinder number (0-1023) 8548 ; dl = sector 8549 ; dh = head 8550 ; 01/11/2020 8551 ; cx = cylinder number (0-65535) 8552 8553 ; 02/11/2020 8554 ;mov [endcyl], cx ; 01/11/2020 8555 00002C26 870E[2A71] xchg [endcyl], cx 8556 ; cx = end cylinder of the ep 8557 ; [endcyl] = end cylinder of the ldd 8558 8559 ;mov [di+ptFileSystemID], 0 8560 ;mov cx, [heads] 8561 ;dec cl 8562 ;mov [di+ptEndHead], cl 8563 ; 01/11/2020 8564 00002C2A 887505 mov [di+ptEndHead], dh 8565 8566 00002C2D 884507 mov [di+ptEndCylinder], al 8567 ;mov dx, [sectors] 8568 00002C30 C0E406 shl ah, 6 8569 00002C33 08D4 or ah, dl 8570 00002C35 886506 mov [di+ptEndSector], ah 8571 8572 ; 02/03/2019 8573 ; Check unused space if it is 3rd LDD 8574 ; (write message to add unused space.) 8575 8576 ; 02/11/2020 8577 ;cmp byte [ldrives], 3 8578 ;jb eetc_7 8579 8580 ; 01/11/2020 8581 00002C38 833E[2871]FF cmp word [lcylinders], 65535 8582 ; sign for using all of available sectors 8583 00002C3D 0F83B500 jnb eetc_7 ; no need to add unused sector 8584 ; (there are not any unused sectors) 8585 8586 ; cx = cylinder number (0 to 65535) 8587 8588 ; 02/11/2020 8589 00002C41 803E[A66D]03 cmp byte [ldrives], 3 ; is this logical drive 4 ? 8590 00002C46 7309 jnb short eetc_17 8591 ; force to show unused space message 8592 8593 ; 02/11/2020 8594 ; (add unused space if cyl nums are same or diff is 1) 8595 00002C48 49 dec cx ; tolerate cylinder numbers n and n-1 8596 00002C49 3B0E[2A71] cmp cx, [endcyl] 8597 00002C4D 0F87A500 ja eetc_7 ; the end cyl number of the last ldd 8598 ; is 2 or more cyls less than 8599 ; the end cyl number of the ep 8600 ; (a next ldd can be added to 8601 ; extd partition with 2 or more cyls) 8602 eetc_17: 8603 ; 02/11/2020 8604 00002C51 A0[A66D] mov al, [ldrives] 8605 ;add al, '0' 8606 00002C54 0431 add al, '1' ; 03/11/2020 8607 00002C56 A2[6D62] mov [char_lddn], al 8608 8609 00002C59 A0[6E3F] mov al, [sectors] 8610 00002C5C 88C7 mov bh, al 8611 00002C5E 8A1E[703F] mov bl, [heads] 8612 00002C62 FECB dec bl 8613 00002C64 F6E3 mul bl ; [sectors] * [heads] - 1 8614 8615 00002C66 50 push ax 8616 8617 00002C67 88F8 mov al, bh ; [sectors] 8618 ;mul byte [heads] 8619 00002C69 FEC3 inc bl 8620 00002C6B F6E3 mul bl 8621 ; ax = heads * sectors 8622 ;mul cx ; * end cylinder 8623 00002C6D F726[2A71] mul word [endcyl] ; 02/11/2020 8624 ; dx:ax = end cylinder * heads * sectors 8625 00002C71 59 pop cx 8626 00002C72 01C8 add ax, cx ; + (sectors * (heads - 1)) 8627 00002C74 83D200 adc dx, 0 8628 8629 ; 03/03/2019 8630 00002C77 8B0E[6E3F] mov cx, [sectors] 8631 00002C7B FEC9 dec cl ; [sectors] - 1 8632 00002C7D 01C8 add ax, cx ; + (sectors - 1) 8633 00002C7F 83D200 adc dx, 0 8634 ; DX:AX = end LBA 8635 8636 00002C82 8B0E[B26F] mov cx, [ep_EndSector] 8637 00002C86 8B1E[B46F] mov bx, [ep_EndSector+2] 8638 8639 00002C8A 39DA cmp dx, bx 8640 00002C8C 7504 jne short eetc_5 8641 00002C8E 39C8 cmp ax, cx 8642 00002C90 7464 je short eetc_7 ; 05/03/2019 8643 eetc_5: 8644 00002C92 53 push bx 8645 00002C93 BE[2A62] mov si, msg_c_ldd_unused_warning 8646 00002C96 E8E9EE call print_msg 8647 00002C99 5B pop bx 8648 eetc_6: 8649 00002C9A 28E4 sub ah, ah 8650 00002C9C CD16 int 16h 8651 00002C9E 3C0D cmp al, 13 ; ENTER 8652 00002CA0 7454 je short eetc_7 ; continue 8653 00002CA2 3C1B cmp al, 27 ; ESC 8654 00002CA4 75F4 jne short eetc_6 8655 8656 ; 03/03/2019 8657 ; change end cylinder value 8658 00002CA6 A0[6370] mov al, [epnumber] 8659 00002CA9 FEC8 dec al 8660 00002CAB B412 mov ah, 18 ; primary partition table structure size 8661 00002CAD F6E4 mul ah 8662 00002CAF 89C6 mov si, ax 8663 00002CB1 8B84[2070] mov ax, [si+part_table_end_cyl] 8664 ; 02/11/2020 8665 00002CB5 A3[2A71] mov [endcyl], ax ; end cylinder of the ep 8666 eetc_19: 8667 ; 03/11/2020 8668 00002CB8 3DFF03 cmp ax, 1023 ; overs CHS limit ? 8669 00002CBB 7603 jna short eetc_20 ; no 8670 00002CBD B8FF03 mov ax, 1023 ; 03FFh ; fix end CHS values of the PTE 8671 eetc_20: 8672 00002CC0 884507 mov [di+ptEndCylinder], al 8673 00002CC3 8A84[1F70] mov al, [si+part_table_end_sector] 8674 00002CC7 C0E406 shl ah, 6 8675 00002CCA 08C4 or ah, al 8676 00002CCC 886506 mov [di+ptEndSector], ah 8677 00002CCF 8A84[1E70] mov al, [si+part_table_end_head] 8678 00002CD3 884505 mov [di+ptEndHead], al 8679 8680 00002CD6 89C8 mov ax, cx 8681 00002CD8 89DA mov dx, bx 8682 00002CDA 83C001 add ax, 1 8683 00002CDD 83D200 adc dx, 0 8684 ; dx:ax = end of extd partition + 1 8685 8686 ; 02/11/2020 8687 00002CE0 2B86[0271] sub ax, [bp+ldd_start] 8688 00002CE4 1B96[0471] sbb dx, [bp+ldd_start+2] 8689 00002CE8 2B4508 sub ax, [di+ptStartSector] 8690 00002CEB 1B550A sbb dx, [di+ptStartSector+2] 8691 ; dx:ax = new sector count of the ldd 8692 8693 00002CEE 89450C mov [di+ptSectors], ax 8694 00002CF1 89550E mov [di+ptSectors+2], dx 8695 00002CF4 EB06 jmp short eetc_8 8696 eetc_7: 8697 00002CF6 8B450C mov ax, [di+ptSectors] 8698 00002CF9 8B550E mov dx, [di+ptSectors+2] 8699 eetc_8: 8700 ; 01/11/2020 8701 00002CFC 813E[2A71]FF03 cmp word [endcyl], 1023 8702 00002D02 7605 jna short eetc_15 8703 8704 ; 25/10/2020 8705 ;mov cx, [bp+ldd_start] 8706 ;mov bx, [bp+ldd_start+2] 8707 ;; 01/11/2020 8708 ;add cx, [bp+ldd_size] 8709 ;adc bx, [bp+ldd_size+2] 8710 ;sub cx, 1 ; * 8711 ;sbb bx, 0 ; * 8712 ;cmp bx, [chs_limit+2] 8713 ;jb short eetc_15 8714 ;ja short eetc_19 8715 ;cmp cx, [chs_limit] 8716 ;jna short eetc_15 8717 ;eetc_19: 8718 00002D04 E8D000 call size_to_fat_type_lba ; 25/10/2020 8719 00002D07 EB03 jmp short eetc_16 8720 eetc_15: 8721 ; Get proper FAT type in [ldd_type] 8722 ; by using DX:AX - size - 8723 00002D09 E8B100 call size_to_fat_type 8724 eetc_16: 8725 00002D0C 884504 mov [di+ptFileSystemID], al 8726 8727 ; Write current EBR (with modified PT) 8728 00002D0F 8B86[0271] mov ax, [bp+ldd_start] 8729 00002D13 8B96[0471] mov dx, [bp+ldd_start+2] 8730 8731 ; 01/11/2020 8732 ; ! safety ! (to protect MBR and primary partition) 8733 ;eetc_16: 8734 ;cmp dx, [ep_StartSector+2] 8735 ;jb short eetc_18 8736 ;ja short eetc_17 8737 ;cmp ax, [ep_StartSector] 8738 ;jna short eetc_18 8739 ;eetc_17: 8740 ;mov ah, 0FFh 8741 ;jmp print_error_code 8742 ;eetc_18: 8743 8744 00002D17 BB[AC6D] mov bx, ebr_buffer 8745 00002D1A E8CAEE call write_hd_sector 8746 00002D1D 0F8270DA jc print_error_code ; ! display error msg and then exit ! 8747 8748 00002D21 A0[A66D] mov al, [ldrives] 8749 00002D24 B412 mov ah, 18 ; extended partition table structure size 8750 00002D26 F6E4 mul ah 8751 8752 00002D28 89C6 mov si, ax 8753 00002D2A 81C6[6470] add si, ext_table_boot_ind 8754 00002D2E 87F7 xchg si, di 8755 8756 ; set partition (logical -dos- drive) data 8757 00002D30 A5 movsw ; boot indicator, beginning head 8758 00002D31 AC lodsb 8759 00002D32 88C4 mov ah, al 8760 00002D34 243F and al, 3Fh 8761 00002D36 AA stosb ; beginning sector 8762 00002D37 C0EC06 shr ah, 6 8763 00002D3A AC lodsb ; beginning cylinder 8764 00002D3B AB stosw 8765 00002D3C A5 movsw ; partition id, end head 8766 00002D3D AC lodsb 8767 00002D3E 88C4 mov ah, al 8768 00002D40 243F and al, 3Fh 8769 00002D42 AA stosb ; end sector 8770 00002D43 C0EC06 shr ah, 6 8771 00002D46 AC lodsb ; end cylinder 8772 00002D47 AB stosw 8773 8774 00002D48 A5 movsw ; copy start sector (LBA) and sector count 8775 00002D49 A5 movsw 8776 00002D4A A5 movsw 8777 00002D4B A5 movsw 8778 8779 00002D4C FE06[A66D] inc byte [ldrives] 8780 8781 00002D50 E981FC jmp display_extended_pt 8782 8783 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8784 ; check free space in EXTENDED (DOS) partition 8785 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8786 ; 05/03/2019 8787 8788 check_ext_free_space: 8789 00002D53 A1[B66F] mov ax, [ep_Size] 8790 00002D56 8B16[B86F] mov dx, [ep_Size+2] 8791 8792 00002D5A 8A1E[A66D] mov bl, [ldrives] 8793 00002D5E 20DB and bl, bl 8794 00002D60 7433 jz short cefs_1 8795 00002D62 80FB04 cmp bl, 4 8796 00002D65 7602 jna short cefs_0 8797 00002D67 B304 mov bl, 4 8798 cefs_0: 8799 00002D69 FECB dec bl 8800 00002D6B C0E302 shl bl, 2 ; * 4 8801 00002D6E 30FF xor bh, bh 8802 00002D70 89DE mov si, bx 8803 8804 00002D72 8B8C[0271] mov cx, [si+ldd_start] 8805 00002D76 8B9C[0471] mov bx, [si+ldd_start+2] 8806 00002D7A 038C[1271] add cx, [si+ldd_size] 8807 00002D7E 139C[1471] adc bx, [si+ldd_size+2] 8808 8809 00002D82 0306[AE6F] add ax, [ep_StartSector] 8810 00002D86 1316[B06F] adc dx, [ep_StartSector+2] 8811 8812 00002D8A 29C8 sub ax, cx 8813 00002D8C 19DA sbb dx, bx 8814 00002D8E 7505 jnz short cefs_1 8815 8816 00002D90 09C0 or ax, ax 8817 00002D92 7501 jnz short cefs_1 8818 8819 ; cf = 0 if the result not negative 8820 8821 00002D94 F9 stc 8822 8823 ; cf = 1 if the result is negative or zero 8824 8825 ; If cf = 0 -> There is free space as in DX:AX 8826 ; NOTE: This calculation is unsafe if 8827 ; logical dos drive count > 4 ! 8828 ; (But still meaningful for creating a new ldd. 8829 ; Because a new ldd will be created only 8830 ; if ldd count < 4.) 8831 cefs_1: 8832 00002D95 C3 retn 8833 8834 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8835 ; convert LBA to CHS parameters (in registers) 8836 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8837 ; 24/10/2020 8838 8839 ; 13/01/2021 (BugFix) 8840 ; 01/03/2019 (hdimage.s) 8841 lba_to_chs: 8842 ; INPUT: 8843 ; DX:AX = LBA address 8844 ; OUTPUT: 8845 ; AX = cylinder 8846 ; DL = sector 8847 ; DH = head 8848 ; 24/10/2020 8849 ; BL = extended partition ID (05h, 0Fh) 8850 ; 8851 ; (modified registers: ax, bx, cx, dx) 8852 8853 00002D96 8B0E[6E3F] mov cx, [sectors] 8854 00002D9A E8E0DE call div32 8855 00002D9D FEC3 inc bl 8856 00002D9F 53 push bx ; BL = sector 8857 00002DA0 8B0E[703F] mov cx, [heads] 8858 00002DA4 E8D6DE call div32 8859 00002DA7 5A pop dx ; DL = sector 8860 00002DA8 88DE mov dh, bl ; BL = head 8861 8862 ; 24/10/2020 8863 ; check cylinder number (CHS) limit 8864 ;mov bh, 05h ; ENTENTED (LBA) 8865 ; 13/03/2021 8866 00002DAA B305 mov bl, 05h ; EXTENDED (LBA) 8867 8868 00002DAC 89C1 mov cx, ax ; 01/11/2020 8869 8870 00002DAE 3DFF03 cmp ax, 1023 8871 00002DB1 7609 jna short lbatochs_ok 8872 8873 00002DB3 B8FF03 mov ax, 1023 ; BC/EC = 0FFh 8874 00002DB6 B23F mov dl, 63 ; BS/ES = 0FFh 8875 00002DB8 B6FE mov dh, 254 ; BH/EH = 0FEh 8876 00002DBA B30F mov bl, 0Fh ; EXTENDED (CHS) 8877 lbatochs_ok: 8878 00002DBC C3 retn 8879 8880 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8881 ; specify FAT type by using partition/volume size (CHS) 8882 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8883 ; 02/03/2019 8884 8885 size_to_fat_type: 8886 ; INPUT: 8887 ; DX:AX = DOS Partition Size in sectors 8888 ; OUTPUT: 8889 ; AL = Partition type/ID (FAT type) 8890 8891 00002DBD 09D2 or dx, dx 8892 00002DBF 750B jnz short stft_2 8893 8894 00002DC1 3DA87F cmp ax, 32680 8895 00002DC4 7703 ja short stft_1 8896 stft_0: 8897 00002DC6 B001 mov al, 1 ; FAT12 file system 8898 00002DC8 C3 retn 8899 stft_1: 8900 00002DC9 B004 mov al, 4 ; FAT16 (< 32MB) 8901 00002DCB C3 retn 8902 stft_2: 8903 00002DCC 83FA10 cmp dx, 10h 8904 00002DCF 7303 jnb short stft_3 ; FAT32 (CHS) file system 8905 8906 00002DD1 B006 mov al, 6 ; FAT16 (>= 32MB) 8907 00002DD3 C3 retn 8908 stft_3: 8909 00002DD4 B00B mov al, 0Bh ; FAT32 (CHS) 8910 00002DD6 C3 retn 8911 8912 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8913 ; specify FAT type by using partition/volume size (LBA) 8914 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8915 ; 25/10/2020 8916 8917 size_to_fat_type_lba: 8918 ; INPUT: 8919 ; DX:AX = DOS Partition Size in sectors 8920 ; OUTPUT: 8921 ; AL = Partition type/ID (FAT type) 8922 8923 00002DD7 09D2 or dx, dx 8924 00002DD9 7408 jz short stft_4 8925 8926 00002DDB 83FA10 cmp dx, 10h 8927 00002DDE 7208 jb short stft_5 ; FAT16 (LBA) file system 8928 8929 00002DE0 B00C mov al, 0Ch ; FAT32 file system (LBA) 8930 00002DE2 C3 retn 8931 stft_4: 8932 00002DE3 3DA87F cmp ax, 32680 8933 00002DE6 76DE jna short stft_0 ; FAT12 file system 8934 stft_5: 8935 00002DE8 B00E mov al, 0Eh ; FAT16 file system (LBA) 8936 00002DEA C3 retn 8937 8938 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8939 ; get requested logical dos drive size (from user) 8940 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8941 ; 02/03/2019 8942 8943 get_ldd_size: 8944 ; INPUT -> none 8945 ; 8946 ; OUTPUT -> 8947 ; [lcylinders] = cylinder count 8948 ; 8949 ; (Modified registers: ax, bx, cx, dx, si, di) 8950 8951 00002DEB B80300 mov ax, 3 ; clear screen 8952 00002DEE CD10 int 10h 8953 8954 00002DF0 BE[0448] mov si, msg_create_dos_partition_h 8955 00002DF3 E88CED call print_msg 8956 8957 ; 03/03/2019 8958 00002DF6 A0[A66D] mov al, [ldrives] 8959 00002DF9 08C0 or al, al ; cmp byte [ldrives], 0 8960 00002DFB 7405 jz short gldds_1 ; jna short gldds_0 8961 8962 ;push ax ; * 8963 8964 ;dec al 8965 ;mov ah, 18 8966 ;mul ah 8967 8968 ;mov di, ext_table_rel_sec_lw 8969 ;add di, ax 8970 8971 00002DFD BE[184E] mov si, msg_use_all_space 8972 ; 01/11/2020 8973 ;call print_msg 8974 00002E00 EB03 jmp short gldds_2 8975 8976 ; Calculate available space 8977 8978 ;mov ax, [ep_Size] ; ext part size in sectors 8979 ;mov dx, [ep_Size+2] 8980 8981 ; 04/03/2019 8982 ;gldds_0: 8983 ;mov cx, [di] ; start sector 8984 ;mov bx, [di+2] 8985 ;add cx, [di+4] ; sectors 8986 ;adc bx, [di+6] 8987 ; ; bx:cx = start of next ldd 8988 ;sub ax, cx 8989 ;sbb dx, bx 8990 ; ; dx:ax = free space in sectors 8991 ; 8992 ;pop cx ; * 8993 ;dec cl 8994 ;jz short gldds_2 8995 ;sub di, 18 8996 ;push cx ; * 8997 ;jmp short gldds_0 8998 8999 ; 05/03/2019 9000 ;call check_ext_free_space 9001 ;jc short gldds_cancel 9002 9003 ; 01/11/2020 9004 ; 30/10/2020 9005 ;mov ax, [ep_free_sectors] 9006 ;mov dx, [ep_free_sectors+2] 9007 9008 ; DX:AX = free sectors in extended partition 9009 ;jmp short gldds_2 9010 gldds_1: 9011 00002E02 BE[4B4E] mov si, msg_use_entire_ep_space 9012 ;call print_msg 9013 9014 ; 01/11/2020 9015 ; Calculate free space in extended partition 9016 ;mov ax, [ep_Size] 9017 ;mov dx, [ep_Size+2] 9018 gldds_2: 9019 ; 01/11/2020 9020 00002E05 E87AED call print_msg 9021 9022 00002E08 A0[703F] mov al, [heads] 9023 00002E0B F626[6E3F] mul byte [sectors] 9024 00002E0F 89C1 mov cx, ax 9025 9026 00002E11 A1[2271] mov ax, [ep_free_sectors] 9027 00002E14 8B16[2471] mov dx, [ep_free_sectors+2] 9028 9029 ; 01/11/2020 9030 ; this is needed for partition size input 9031 ; (maximum available sectors) 9032 ;mov [pp_Sectors], ax 9033 ;mov [pp_Sectors+2], dx 9034 9035 ; 01/11/2020 9036 ; subtrack start offset (which always equals to spt value) 9037 ;sub ax, [sectors] 9038 ;sbb dx, 0 9039 9040 ;mov cx, ax 9041 ;mov al, [heads] 9042 ;mul byte [sectors] 9043 ;xchg ax, cx 9044 ; dx:ax = sectors 9045 ; cx = heads*spt 9046 ;call div32 9047 ; ax = cylinders 9048 ; bx = remainder 9049 ; dx = 0 9050 ;and bx, bx 9051 ;jz short gldds_3 9052 ;inc ax 9053 ; 01/11/2020 9054 00002E18 F7F1 div cx 9055 ;and dx, dx 9056 ;jz short gldds_3 9057 ;inc ax 9058 gldds_3: 9059 00002E1A A3[2871] mov [lcylinders], ax ; <= 65535 (< 65535) 9060 gldds_getchar: 9061 00002E1D 30E4 xor ah, ah 9062 00002E1F CD16 int 16h 9063 9064 00002E21 3C1B cmp al, 27 ; ESCAPE key 9065 00002E23 7416 je short gldds_cancel 9066 00002E25 24DF and al, 0DFh 9067 00002E27 3C4E cmp al, 'N' 9068 00002E29 7417 je short gldds_4 9069 00002E2B 3C59 cmp al, 'Y' 9070 00002E2D 75EE jne short gldds_getchar 9071 9072 ; 01/11/2020 9073 00002E2F C706[2871]FFFF mov word [lcylinders], 65535 ; sign for all free sectors 9074 9075 00002E35 BE[985C] mov si, _msg_YES 9076 ;call print_msg 9077 ;retn 9078 00002E38 E947ED jmp print_msg 9079 9080 gldds_cancel: 9081 00002E3B C706[2871]0000 mov word [lcylinders], 0 9082 gldds_28: 9083 00002E41 C3 retn 9084 gldds_4: 9085 00002E42 BE[9E5C] mov si, _msg_NO 9086 00002E45 E83AED call print_msg 9087 gldds_26: 9088 00002E48 B80300 mov ax, 3 ; clear screen 9089 00002E4B CD10 int 10h 9090 9091 00002E4D BE[0448] mov si, msg_create_dos_partition_h 9092 00002E50 E82FED call print_msg 9093 9094 00002E53 BE[B062] mov si, msg_create_ldd_s 9095 00002E56 E829ED call print_msg 9096 00002E59 BE[D64D] mov si, msg_press_esc_to_cancel 9097 00002E5C E823ED call print_msg 9098 gldds_25: 9099 00002E5F 30E4 xor ah, ah 9100 00002E61 CD16 int 16h 9101 9102 00002E63 3C1B cmp al, 27 ; ESCAPE key 9103 00002E65 7502 jne short gldds_5 9104 9105 00002E67 EBD2 jmp short gldds_cancel 9106 gldds_5: 9107 ; 04/03/2019 9108 00002E69 3C20 cmp al, 32 ; SPACE key 9109 00002E6B 74D4 je short gldds_28 9110 9111 ; 01/11/2020 9112 ;mov byte [pSize_unit], '%' 9113 00002E6D 3C25 cmp al, '%' 9114 00002E6F 7416 je short gldds_6 9115 ;mov byte [pSize_unit], 'M' 9116 00002E71 3C0D cmp al, 13 ; 0Dh, Carriage Return key 9117 ;je short gldds_6 9118 00002E73 7504 jne short gldds_29 9119 ; 01/11/2020 9120 00002E75 B04D mov al, 'M' 9121 00002E77 EB0E jmp short gldds_6 9122 gldds_29: 9123 00002E79 24DF and al, 0DFh 9124 00002E7B 3C4D cmp al, 'M' 9125 00002E7D 7408 je short gldds_6 9126 ;mov [pSize_unit], al 9127 00002E7F 3C47 cmp al, 'G' 9128 00002E81 7404 je short gldds_6 9129 00002E83 3C43 cmp al, 'C' 9130 00002E85 75D8 jne short gldds_25 9131 gldds_6: 9132 ; 01/11/2020 9133 00002E87 A2[826D] mov [pSize_unit], al 9134 9135 ; Set maximum sector count (all of extended partition) 9136 ;mov al, [sectors] 9137 ;mul byte [heads] 9138 ;mul word [lcylinders] 9139 ; 01/11/2020 9140 00002E8A A1[2271] mov ax, [ep_free_sectors] 9141 00002E8D 8B16[2471] mov dx, [ep_free_sectors+2] 9142 00002E91 A3[706D] mov [pp_Sectors], ax 9143 00002E94 8916[726D] mov [pp_Sectors+2], dx 9144 9145 00002E98 E857EF call partition_size_input 9146 00002E9B 729E jc short gldds_cancel 9147 ; DX:AX = Partition size in sectors 9148 ;or bx, bx 9149 ;jnz short gldds_cancel 9150 9151 ; 01/11/2020 9152 00002E9D A3[9E6D] mov [ppn_Sectors], ax 9153 00002EA0 8916[A06D] mov [ppn_Sectors+2], dx 9154 9155 ;mov cx, ax 9156 ;mov al, [heads] 9157 ;mul byte [sectors] 9158 ;xchg ax, cx 9159 ; 13/03/2021 9160 00002EA4 8B0E[986D] mov cx, [hs] ; heads*sectors 9161 ; dx:ax = sectors 9162 ; cx = heads*spt 9163 00002EA8 E8D2DD call div32 9164 ; ax = cylinders 9165 ; bx = remainder 9166 ; dx = 0 9167 ; 02/11/2020 9168 ;and bx, bx 9169 ;jz short gldds_7 9170 ;inc ax 9171 gldds_7: 9172 00002EAB 3B06[2871] cmp ax, [lcylinders] 9173 00002EAF 7704 ja short gldds_9 9174 gldds_8: 9175 ; OK 9176 00002EB1 A3[2871] mov [lcylinders], ax 9177 00002EB4 C3 retn 9178 9179 gldds_9: 9180 ; Partition size limit message 9181 9182 00002EB5 803E[826D]43 cmp byte [pSize_unit], 'C' 9183 00002EBA 741C je short gldds_10 9184 9185 ; Tolerate 1 cylinder if unit is not cylinder 9186 ;dec ax 9187 ;cmp ax, [lcylinders] 9188 ;jna short gldds_8 9189 9190 ; 01/11/2020 9191 ; Tolerate sectors if sectorcount doesn't over ep limit 9192 00002EBC A1[9E6D] mov ax, [ppn_Sectors] 9193 00002EBF 8B16[A06D] mov dx, [ppn_Sectors+2] 9194 00002EC3 3B16[2471] cmp dx, [ep_free_sectors+2] 9195 00002EC7 770F ja short gldds_10 9196 00002EC9 7206 jb short gldds_30 9197 00002ECB 3B06[2271] cmp ax, [ep_free_sectors] 9198 00002ECF 7707 ja short gldds_10 9199 gldds_30: 9200 00002ED1 C706[2871]FFFF mov word [lcylinders], 65535 ; sign for all free sectors 9201 00002ED7 C3 retn 9202 9203 gldds_10: 9204 ; clear screen 9205 00002ED8 B80300 mov ax, 3 ; set video mode to 03h (80x25 text) 9206 00002EDB CD10 int 10h 9207 9208 00002EDD BE[0448] mov si, msg_create_dos_partition_h ; header 9209 00002EE0 E89FEC call print_msg 9210 9211 00002EE3 BE[5D5E] mov si, msg_partition_size_limit 9212 00002EE6 E899EC call print_msg 9213 9214 00002EE9 803E[826D]4D cmp byte [pSize_unit], 'M' 9215 00002EEE 7413 je short gldds_11 9216 9217 00002EF0 803E[826D]25 cmp byte [pSize_unit], '%' 9218 00002EF5 7457 je short gldds_22 9219 9220 00002EF7 803E[826D]43 cmp byte [pSize_unit], 'C' 9221 00002EFC 7505 jne short gldds_11 9222 9223 00002EFE A1[2871] mov ax, [lcylinders] 9224 00002F01 EB0F jmp short gldds_12 9225 gldds_11: 9226 ; 'M' 9227 00002F03 A1[706D] mov ax, [pp_Sectors] 9228 00002F06 8B16[726D] mov dx, [pp_Sectors+2] 9229 00002F0A B90008 mov cx, 2*1024 ; sectors -> MB 9230 00002F0D E86DDD call div32 9231 ; DX = 0 9232 ; AX = Available space in Megabytes 9233 00002F10 89C7 mov di, ax 9234 gldds_12: 9235 00002F12 B90A00 mov cx, 10 9236 00002F15 89E5 mov bp, sp 9237 gldds_13: 9238 00002F17 31D2 xor dx, dx 9239 ;mov cx, 10 9240 00002F19 F7F1 div cx 9241 00002F1B 52 push dx 9242 00002F1C 83F809 cmp ax, 9 9243 00002F1F 77F6 ja short gldds_13 9244 gldds_14: 9245 00002F21 BB0700 mov bx, 07h 9246 00002F24 09C0 or ax, ax 9247 00002F26 7501 jnz short gldds_16 9248 gldds_15: 9249 00002F28 58 pop ax 9250 gldds_16: 9251 00002F29 0430 add al, '0' 9252 gldds_17: 9253 00002F2B B40E mov ah, 0Eh 9254 ;mov bx, 07h 9255 00002F2D CD10 int 10h ; write character (as tty) 9256 9257 00002F2F 39EC cmp sp, bp 9258 00002F31 72F5 jb short gldds_15 9259 9260 00002F33 803E[826D]25 cmp byte [pSize_unit], '%' 9261 00002F38 7508 jne short gldds_18 9262 9263 00002F3A 3C25 cmp al, '%' 9264 00002F3C 745E je short gldds_21 9265 00002F3E B025 mov al, '%' 9266 00002F40 EBE9 jmp short gldds_17 9267 gldds_18: 9268 00002F42 803E[826D]43 cmp byte [pSize_unit], 'C' 9269 00002F47 753E jne short gldds_19 9270 9271 00002F49 BE[F95E] mov si, msg_cylinders 9272 00002F4C EB4B jmp short gldds_20 9273 9274 gldds_22: 9275 ; '%' 9276 ; 01/11/2020 9277 00002F4E 8B16[B86F] mov dx, [ep_Size+2] 9278 00002F52 A1[B66F] mov ax, [ep_Size] ; * 9279 00002F55 21D2 and dx, dx 9280 00002F57 7419 jz short gldds_33 ; dx = 0 9281 00002F59 B90100 mov cx, 1 9282 gldds_31: 9283 00002F5C D1E1 shl cx, 1 9284 00002F5E E81CDD call div32 9285 00002F61 09D2 or dx, dx 9286 00002F63 7409 jz short gldds_32 ; * 9287 00002F65 A1[B66F] mov ax, [ep_Size] 9288 00002F68 8B16[B86F] mov dx, [ep_Size+2] 9289 00002F6C EBEE jmp short gldds_31 9290 gldds_32: 9291 00002F6E 8B16[2471] mov dx, [ep_free_sectors+2] 9292 ; ep free sectors <= ep size 9293 gldds_33: 9294 00002F72 50 push ax ; * ; dx = 0 (ep size weight) 9295 00002F73 A1[2271] mov ax, [ep_free_sectors] 9296 00002F76 B96400 mov cx, 100 9297 ;and dx, dx 9298 ;jnz short gldds_34 9299 ;mul cx 9300 ;jmp short gldds_35 9301 ;gldds_34: 9302 00002F79 E80FDD call mul32 9303 ; dx:ax = 100 * ep free sectors weight 9304 ;gldds_35: 9305 00002F7C 59 pop cx ; * 9306 00002F7D E8FDDC call div32 ; 100 * ep free sectors / ep size 9307 ; ax = % value (<= 100) 9308 00002F80 09C0 or ax, ax 9309 ;jnz short gldds_23 9310 00002F82 758E jnz short gldds_12 ; 13/01/2021 9311 00002F84 40 inc ax ; 0 -> 1 9312 ; 13/03/2021 9313 00002F85 EB8B jmp short gldds_12 9314 9315 ;gldds_23: 9316 ;mov bp, sp 9317 ;mov cx, 10 9318 ;gldds_24: 9319 ;xor dx, dx 9320 ;div cx 9321 ;push dx ; * 9322 ;cmp ax, 9 9323 ;ja short gldds_24 9324 ;jmp short gldds_14 9325 9326 gldds_19: 9327 00002F87 BE[0D5F] mov si, msg_megabytes 9328 00002F8A C606[165F]73 mov byte [msg_megabytes_s], 's' 9329 00002F8F 83FF01 cmp di, 1 9330 00002F92 7705 ja short gldds_20 9331 00002F94 C606[165F]00 mov byte [msg_megabytes_s], 0 9332 gldds_20: 9333 00002F99 E8E6EB call print_msg 9334 gldds_21: 9335 00002F9C BE[AA5E] mov si, msg_partition_size_limit_r 9336 00002F9F E8E0EB call print_msg 9337 gldds_27: 9338 00002FA2 30E4 xor ah, ah 9339 00002FA4 CD16 int 16h 9340 9341 00002FA6 3C1B cmp al, 27 ; ESCAPE key 9342 00002FA8 0F849CFE je gldds_26 9343 00002FAC 3C0D cmp al, 13 ; ENTER (Carriage Return) key 9344 00002FAE 75F2 jne short gldds_27 9345 9346 ;mov ax, [lcylinders] 9347 00002FB0 C3 retn 9348 9349 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9350 ; initialize extended (dos) partition table 9351 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9352 ; 18/10/2020 (fdisk3.s) 9353 ; 26/02/2019 (hdimage.s) 9354 9355 init_ext_partition_table: 9356 9357 ; INPUT -> 9358 ; [epnumber] = extended partition number 9359 ; 9360 ; OUTPUT -> none 9361 9362 ; Display Method: ; 04/03/2019 9363 ;LDD 1 <- LDD_START0, ebr 1st entry <- MBR (extended partition) - EBR 0 9364 ;LDD 2 <- LDD_START1, ebr 1st entry <- EBR 1 9365 ;LDD 3 <- LDD_START2, ebr 1st entry <- EBR 2 9366 ;LDD 4 <- LDD_START3, ebr 1st entry <- EBR 3 9367 ;LDD 5 <- LDD_START3, ebr 2nd entry (LDD 5 is not displayed) 9368 9369 ; 08/03/2019 9370 9371 ; clear extended partition table structure/list 9372 9373 00002FB1 BF[6470] mov di, ext_table_boot_ind 9374 00002FB4 89FE mov si, di ; 28/02/2019 9375 00002FB6 B92400 mov cx, 36 ; 18*4 = 72 bytes 9376 00002FB9 31C0 xor ax, ax ; 0 9377 00002FBB F3AB rep stosw 9378 00002FBD 89F7 mov di, si ; 28/02/2019 9379 9380 ;mov byte [ldrives], 0 9381 00002FBF A2[A66D] mov [ldrives], al ; 0 9382 9383 ;cmp byte [epnumber], 1 9384 ;jb short iept_0 9385 9386 00002FC2 A0[6370] mov al, [epnumber] 9387 00002FC5 FEC8 dec al 9388 00002FC7 B412 mov ah, 18 ; partition table structure size 9389 00002FC9 F6E4 mul ah 9390 00002FCB BE[2270] mov si, part_table_rel_sec_lw 9391 00002FCE 01C6 add si, ax 9392 ; 02/11/2020 9393 ;(save end cylinder for comparising later) 9394 00002FD0 8B44FE mov ax, [si-2] ; part_table_end_cyl 9395 ; 16 bit cylinder number 9396 00002FD3 A3[2A71] mov [endcyl], ax 9397 ; 9398 00002FD6 8B04 mov ax, [si] 9399 00002FD8 8B5402 mov dx, [si+2] 9400 00002FDB A3[AE6F] mov [ep_StartSector], ax 9401 00002FDE 8916[B06F] mov [ep_StartSector+2], dx 9402 00002FE2 8B4C04 mov cx, [si+4] 9403 00002FE5 8B5C06 mov bx, [si+6] 9404 00002FE8 890E[B66F] mov [ep_Size], cx 9405 00002FEC 891E[B86F] mov [ep_Size+2], bx 9406 00002FF0 83E901 sub cx, 1 9407 00002FF3 83DB00 sbb bx, 0 9408 00002FF6 01C1 add cx, ax 9409 00002FF8 11D3 adc bx, dx 9410 00002FFA 890E[B26F] mov [ep_EndSector], cx 9411 00002FFE 891E[B46F] mov [ep_EndSector+2], bx 9412 9413 ; 27/02/2019 9414 00003002 A3[0271] mov [ldd_start], ax 9415 00003005 8916[0471] mov [ldd_start+2], dx 9416 9417 ; 03/03/2019 9418 ;mov word [ldd_size], 0 9419 ;mov word [ldd_size+2], 0 9420 9421 00003009 BB[AC6D] mov bx, ebr_buffer 9422 ; dx:ax = Extended partition address 9423 ; es:bx = Extended partition buffer 9424 0000300C E882EB call read_hd_sector 9425 0000300F 7209 jc short iept_0 9426 9427 ; Check EBR if it is a valid boot record or not 9428 00003011 813E[AA6F]55AA cmp word [ebr_buffer+510], 0AA55h 9429 00003017 7402 je short iept_1 9430 iept_stc_retn: 9431 00003019 F9 stc 9432 iept_0: 9433 0000301A C3 retn 9434 iept_1: 9435 ; Check PTE 1, if it is valid or not 9436 0000301B A0[6E6F] mov al, [ebr_buffer+446+ptFileSystemID] 9437 0000301E 20C0 and al, al 9438 00003020 74F7 jz short iept_stc_retn ; empty pte, error 9439 00003022 3C05 cmp al, 5 9440 00003024 74F3 je short iept_stc_retn ; extended partition, error 9441 ; 24/10/2020 9442 00003026 3C0F cmp al, 0Fh 9443 00003028 74EF je short iept_stc_retn ; extended partition, error 9444 9445 ;inc byte [ldrives] ; logical (dos) drive count 9446 9447 0000302A BE[6A6F] mov si, ebr_buffer+446 ; Partition table offset 9448 0000302D B90400 mov cx, 4 9449 9450 ; set partition (logical -dos- drive) data 9451 00003030 A5 movsw ; boot indicator, beginning head 9452 00003031 AC lodsb 9453 00003032 88C4 mov ah, al 9454 00003034 243F and al, 3Fh 9455 00003036 AA stosb ; beginning sector 9456 00003037 C0EC06 shr ah, 6 9457 0000303A AC lodsb ; beginning cylinder 9458 0000303B AB stosw 9459 0000303C A5 movsw ; partition id, end head 9460 0000303D AC lodsb 9461 0000303E 88C4 mov ah, al 9462 00003040 243F and al, 3Fh 9463 00003042 AA stosb ; end sector 9464 00003043 C0EC06 shr ah, 6 9465 00003046 AC lodsb ; end cylinder 9466 00003047 AB stosw 9467 9468 ; 04/03/2019 9469 00003048 8A1E[A66D] mov bl, [ldrives] 9470 ;dec bl 9471 ;jnz short iept_2 9472 9473 ; 05/03/2019 9474 0000304C 08DB or bl, bl 9475 0000304E 7518 jnz short iept_2 9476 9477 00003050 8B04 mov ax, [si] ; start sector of 1st LDD (offset) 9478 00003052 8B5402 mov dx, [si+2] 9479 00003055 034404 add ax, [si+4] ; size of 1st LDD (volume) 9480 00003058 135406 adc dx, [si+6] 9481 9482 0000305B A3[1271] mov [ldd_size], ax ; size of 1st LDD (partition) 9483 0000305E 8916[1471] mov [ldd_size+2], dx 9484 ; 05/03/2019 9485 00003062 FE06[A66D] inc byte [ldrives] ; logical (dos) drive count 9486 00003066 FEC3 inc bl 9487 iept_2: 9488 00003068 F3A5 rep movsw ; copy start sector (LBA) and sector count 9489 9490 ; get next extended partition (logical -dos- drive) data 9491 0000306A 8A4404 mov al, [si+ptFileSystemID] 9492 0000306D 20C0 and al, al ; EMPTY 9493 0000306F 74A9 jz short iept_0 ; end of logical -dos- drive chain 9494 9495 00003071 3C05 cmp al, 5 ; EXTENDED 9496 ;jne short iept_stc_retn ; 2nd PTE must have 9497 ; ; extended partition ID 9498 00003073 7404 je short iept_4 9499 ; 24/10/2020 9500 00003075 3C0F cmp al, 0Fh ; EXTENDED (LBA) 9501 00003077 75A0 jne short iept_stc_retn ; 2nd PTE must have 9502 ; extended partition ID 9503 iept_4: 9504 ; 05/03/2019 9505 00003079 FE06[A66D] inc byte [ldrives] ; logical (dos) drive count 9506 9507 ;cmp byte [ldrives], al ; 5 9508 0000307D 80FB04 cmp bl, 4 ; number of logical dos drives (till here) 9509 00003080 733D jnb short iept_3 9510 9511 00003082 83C608 add si, 8 9512 9513 00003085 AD lodsw 9514 00003086 89C2 mov dx, ax ; start sector 9515 00003088 AD lodsw 9516 00003089 92 xchg dx, ax ; start sector + 2 9517 9518 ; 04/03/2019 9519 0000308A 0306[AE6F] add ax, [ep_StartSector] 9520 0000308E 1316[B06F] adc dx, [ep_StartSector+2] 9521 9522 00003092 30FF xor bh, bh 9523 00003094 C0E302 shl bl, 2 ; *4 9524 9525 ; 28/02/2019 9526 00003097 8987[0271] mov [bx+ldd_start], ax ; start of (next) LDD (partition) 9527 0000309B 8997[0471] mov [bx+ldd_start+2], dx 9528 9529 ; 03/03/2019 9530 ; set partition size for logical dos drive 9531 0000309F 8B0C mov cx, [si] 9532 000030A1 898F[1271] mov [bx+ldd_size], cx 9533 000030A5 8B4C02 mov cx, [si+2] 9534 000030A8 898F[1471] mov [bx+ldd_size+2], cx 9535 9536 000030AC BB[AC6D] mov bx, ebr_buffer 9537 ; dx:ax = Extended partition address 9538 ; es:bx = Extended partition buffer 9539 000030AF E8DFEA call read_hd_sector 9540 000030B2 720B jc short iept_3 ; 03/03/2019 9541 9542 ; Check EBR if it is valid or not 9543 000030B4 813E[AA6F]55AA cmp word [ebr_buffer+510], 0AA55h 9544 000030BA 0F845DFF je iept_1 9545 9546 000030BE F9 stc 9547 iept_3: 9548 000030BF C3 retn 9549 9550 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9551 ; delete logical -dos- drives in extended partition 9552 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9553 ; 18/10/2020 (fdisk3.s) 9554 9555 delete_logical_drives: 9556 ; 27/02/2019 (hdimage.s) 9557 9558 ; Delete Method: ; 04/03/2019 9559 ;LDD 5 <- LDD_START3, ebr 2nd entry 9560 ;LDD 4 <- LDD_START2, ebr 2nd entry 9561 ;LDD 3 <- LDD_START1, ebr 2nd entry 9562 ;LDD 2 <- LDD_START0, ebr 2nd entry 9563 ;LDD 1 <- LDD_START0, ebr 1st entry 9564 9565 ;cmp byte [ldrives], 0 9566 ;jna short dld_stc 9567 9568 ;mov al, 5 ; extended partition (logical drives) 9569 ;call display_partition_table 9570 ; 12/03/2021 9571 000030C0 E814F7 call display_partition_table_x 9572 9573 000030C3 A0[A66D] mov al, [ldrives] 9574 000030C6 0430 add al, '0' 9575 000030C8 A2[8360] mov [lddp_num], al 9576 9577 000030CB BE[3060] mov si, msg_delete_ldd 9578 000030CE E8B1EA call print_msg 9579 9580 000030D1 BE[D64D] mov si, msg_press_esc_to_cancel 9581 000030D4 E8ABEA call print_msg 9582 dld_0: 9583 000030D7 30E4 xor ah, ah 9584 000030D9 CD16 int 16h 9585 9586 000030DB 80FC53 cmp ah, 53h ; DELETE or DEL key 9587 000030DE 751C jne short dld_1 9588 9589 ; Delete PTE 1 & PTE 2 on EBR 1 9590 000030E0 30E4 xor ah, ah 9591 000030E2 A0[A66D] mov al, [ldrives] 9592 000030E5 FEC8 dec al 9593 000030E7 7518 jnz short dld_2 9594 9595 000030E9 BF[6A6F] mov di, ebr_buffer+446 9596 000030EC B91000 mov cx, 16 9597 000030EF F3AB rep stosw 9598 9599 ; 04/03/2019 9600 ; Clear ldd data in extended partition table/structure 9601 000030F1 BF[6470] mov di, ext_table_boot_ind 9602 000030F4 B109 mov cl, 9 9603 000030F6 F3AB rep stosw 9604 000030F8 31F6 xor si, si 9605 000030FA EB40 jmp short dld_3 9606 dld_1: 9607 000030FC 3C1B cmp al, 27 ; ESC key 9608 000030FE 75D7 jne short dld_0 9609 dld_5: 9610 00003100 C3 retn 9611 9612 ;dld_stc: 9613 ; stc 9614 ; retn 9615 9616 dld_2: 9617 ; 04/03/2019 9618 ; Delete 2nd PTE on EBR 2 to 4 9619 00003101 FEC8 dec al 9620 00003103 C0E002 shl al, 2 ; * 4 9621 00003106 89C6 mov si, ax 9622 9623 00003108 8B84[0271] mov ax, [si+ldd_start] 9624 0000310C 8B94[0471] mov dx, [si+ldd_start+2] 9625 00003110 BB[AC6D] mov bx, ebr_buffer 9626 00003113 E87BEA call read_hd_sector 9627 00003116 7238 jc short dld_4 9628 9629 00003118 BF[7A6F] mov di, ebr_buffer+446+16 9630 0000311B B90800 mov cx, 8 9631 0000311E 29C0 sub ax, ax 9632 00003120 F3AB rep stosw 9633 9634 ; 04/03/2019 9635 ;cmp byte [ldrives], 5 9636 ;jnb short dld_3 9637 00003122 8A26[A66D] mov ah, [ldrives] 9638 00003126 80FC05 cmp ah, 5 9639 00003129 7311 jnb short dld_3 9640 9641 ; Clear ldd data in extended partition table/structure 9642 ;mov ah, [ldrives] 9643 0000312B FECC dec ah 9644 0000312D B012 mov al, 18 9645 0000312F F6E4 mul ah 9646 00003131 BF[6470] mov di, ext_table_boot_ind 9647 00003134 01C7 add di, ax 9648 ;mov cx, 9 9649 00003136 B109 mov cl, 9 9650 ;xor ax, ax 9651 00003138 30C0 xor al, al 9652 0000313A F3AB rep stosw 9653 dld_3: 9654 ; Write changed EBR 9655 0000313C 8B84[0271] mov ax, [si+ldd_start] 9656 00003140 8B94[0471] mov dx, [si+ldd_start+2] 9657 00003144 BB[AC6D] mov bx, ebr_buffer 9658 00003147 E89DEA call write_hd_sector 9659 0000314A 7204 jc short dld_4 9660 9661 ; 28/02/2019 9662 0000314C FE0E[A66D] dec byte [ldrives] 9663 dld_4: 9664 00003150 803E[A66D]00 cmp byte [ldrives], 0 9665 00003155 0F8767FF ja delete_logical_drives 9666 9667 00003159 C3 retn 9668 9669 ;============================================================================= 9670 ; initialized data 9671 ;============================================================================= 9672 9673 ; 12/10/2020 9674 0000315A 00 int13h_x: db 0 9675 9676 TRDOS386_MASTERBOOT_SECTOR: 9677 0000315B incbin 'FS1_MBR.BIN' ; Singlix FS1 MBR 9678 9679 TRDOS_FAT_hd_bs: 9680 ;incbin 'TRHDBS.BIN' 9681 TRDOS_FAT32_hd_bs: 9682 0000335B incbin 'FAT32_BS.BIN' 9683 TRDOS_FAT16_hd_bs: 9684 0000375B incbin 'FAT16_BS.BIN' 9685 TRDOS_FAT12_hd_bs: 9686 0000395B incbin 'FAT12_BS.BIN' 9687 9688 TRDOS_TRFS1_chs_bs: 9689 00003B5B incbin 'TRFS1CHS.BIN' ; Singlix FS1 (CHS+LBA Disk) BS 9690 TRDOS_TRFS1_lba_bs: 9691 00003D5B incbin 'TRFS1LBA.BIN' ; Singlix FS1 (LBA Disk) BS 9692 9693 00003F5B 00 db 0 9694 9695 hexchrs: 9696 00003F5C 303132333435363738- db '0123456789ABCDEF' 9696 00003F65 39414243444546 9697 9698 ; 05/11/2020 9699 00003F6C 00 db 0 9700 9701 00003F6D 90 align 2 9702 9703 ; (TR-DOS 386 compatible) Hard Disk (image) parameters 9704 9705 sectors: ; sectors per track (63) 9706 00003F6E 3F00 dw 63 9707 heads: ; number of heads (16 or 32 or 64) 9708 00003F70 1000 dw 16 9709 cylinders: ; number of cylinders (16 to 1024) 9710 00003F72 0004 dw 1024 9711 00003F74 0000 dw 0 ; 16/10/2020 (double word) 9712 9713 ; 05/11/2020 9714 9715 ;random: 9716 ; db 0 ; random write to file (0 = sequental) 9717 ;newdisk: 9718 ; db 0 9719 9720 FileSys_Names: ; 2003-2017 9721 ; (Valid FileSystems for TRDOS 386, SINGLIX, RETRO UNIX OS projects in 2017) 9722 00003F76 464154313220202020- FS_FAT12: db "FAT12 " ; 01h = FAT12 9722 00003F7F 2020202020 9723 00003F84 58454E495820202020- FS_XENIX: db "XENIX " ; 02h , XENIX System V root 9723 00003F8D 2020202020 9724 00003F92 58454E495820757372- FS_XENIX_USR: db "XENIX usr " ; 03h , XENIX System V user 9724 00003F9B 2020202020 9725 00003FA0 464154313620283034- FS_FAT16: db "FAT16 (04h) " ; 04h = FAT16 < 32MB 9725 00003FA9 6829202020 9726 00003FAE 455854454E44454420- FS_EXT_CHS: db "EXTENDED (CHS)" ; 05h = Extended DOS Partition 9726 00003FB7 2843485329 9727 00003FBC 464154313620283036- FS_FAT16_BIG: db "FAT16 (06h) " ; 06h = FAT16 > 32MB, CHS mode 9727 00003FC5 6829202020 9728 00003FCA 4E5446532020202020- FS_NTFS: db "NTFS " ; 07h , WINDOWS NTFS Partition 9728 00003FD3 2020202020 9729 00003FD8 464154333220284348- FS_FAT32_CHS: db "FAT32 (CHS) " ; 0Bh = FAT32, CHS mode 9729 00003FE1 5329202020 9730 00003FE6 464154333220284C42- FS_FAT32_LBA: db "FAT32 (LBA) " ; 0Ch = FAT32, LBA mode 9730 00003FEF 4129202020 9731 00003FF4 464154313620284C42- FS_FAT16_LBA: db "FAT16 (LBA) " ; 0Eh = FAT16, LBA mode 9731 00003FFD 4129202020 9732 00004002 455854454E44454420- FS_EXT_LBA: db "EXTENDED (LBA)" ; 0Fh = Extented Partition, LBA mode 9732 0000400B 284C424129 9733 00004010 554E49582053595354- FS_UNIX_SYSV: db "UNIX SYSTEM V " ; 63h , SCO UNIX, UNIXWARE, OPENSERVER 9733 00004019 454D205620 9734 0000401E 524554524F20554E49- FS_RETROUNIX: db "RETRO UNIX " ; 71h , Retro UNIX 386 v2 Partition 9734 00004027 5820202020 9735 0000402C 554E49582056372020- FS_UNIX_V7: db "UNIX V7 " ; 72h , UNIX v7 x86 Partition 9735 00004035 2020202020 9736 0000403A 4C494E555820535741- FS_LINUXSWAP: db "LINUX SWAP " ; 82h , LINUX SWAP Partition 9736 00004043 5020202020 9737 00004048 4C494E555820202020- FS_LINUX: db "LINUX " ; 83h , LINUX NATIVE (ext2) Partition 9737 00004051 2020202020 9738 00004056 4C494E555820455854- FS_LINUXEXT: db "LINUX EXTENDED" ; 85h , LINUX EXTENDED Partition 9738 0000405F 454E444544 9739 00004064 524444202020202020- FS_TRDD: db "RDD " ; A0h , (Random Data Disk) LBA 9739 0000406D 2020202020 9740 00004072 53494E474C49582046- FS_TRFS: db "SINGLIX FS1 " ; A1h , (32 bit, 512 bytes per sector) 9740 0000407B 5331202020 9741 00004080 554E4B4E4F574E2046- FS_OTHERS: db "UNKNOWN FS " ; Another or Unknown File Systems 9741 00004089 5320202020 9742 9743 valid_partitions: ; (*) 9744 0000408E 01020304050607 db 01h, 02h, 03h, 04h, 05h, 06h, 07h 9745 00004095 0B0C0E0F637172 db 0Bh, 0Ch, 0Eh, 0Fh, 63h, 71h, 72h 9746 0000409C 828385A0A1 db 82h, 83h, 85h, 0A0h, 0A1h 9747 9748 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9749 ; messages 9750 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9751 9752 CHS_msg: ; 80 bytes per row 9753 000040A1 507265737320274327- db "Press 'C' to set cylinders then press '+,-' keys to change number of cylinders. " 9753 000040AA 20746F207365742063- 9753 000040B3 796C696E6465727320- 9753 000040BC 7468656E2070726573- 9753 000040C5 7320272B2C2D27206B- 9753 000040CE 65797320746F206368- 9753 000040D7 616E6765206E756D62- 9753 000040E0 6572206F662063796C- 9753 000040E9 696E646572732E20 9754 000040F1 507265737320274827- db "Press 'H' to set heads then press '+,-' keys to change number of heads. " 9754 000040FA 20746F207365742068- 9754 00004103 65616473207468656E- 9754 0000410C 20707265737320272B- 9754 00004115 2C2D27206B65797320- 9754 0000411E 746F206368616E6765- 9754 00004127 206E756D626572206F- 9754 00004130 662068656164732E20- 9754 00004139 2020202020202020 9755 00004141 507265737320275327- db "Press 'S' to set sectors then press '+,-' keys to change numb of sectors/track. " 9755 0000414A 20746F207365742073- 9755 00004153 6563746F7273207468- 9755 0000415C 656E20707265737320- 9755 00004165 272B2C2D27206B6579- 9755 0000416E 7320746F206368616E- 9755 00004177 6765206E756D62206F- 9755 00004180 6620736563746F7273- 9755 00004189 2F747261636B2E20 9756 00004191 202020202020202020- db " " 9756 0000419A 202020202020202020- 9756 000041A3 202020202020202020- 9756 000041AC 202020202020202020- 9756 000041B5 202020202020202020- 9756 000041BE 202020202020202020- 9756 000041C7 202020202020202020- 9756 000041D0 202020202020202020- 9756 000041D9 2020202020202020 9757 000041E1 202020202020202020- db " " 9757 000041EA 202020202020202020- 9757 000041F3 202020202020202020- 9757 000041FC 202020202020202020- 9757 00004205 202020202020202020- 9757 0000420E 202020202020202020- 9757 00004217 202020202020202020- 9757 00004220 202020202020202020- 9757 00004229 2020202020202020 9758 00004231 507265737320454E54- db "Press ENTER to use current CHS values. " 9758 0000423A 455220746F20757365- 9758 00004243 2063757272656E7420- 9758 0000424C 4348532076616C7565- 9758 00004255 732E20202020202020- 9758 0000425E 202020202020202020- 9758 00004267 202020202020202020- 9758 00004270 202020202020202020- 9758 00004279 2020202020202020 9759 00004281 202020202020202020- db " " 9759 0000428A 202020202020202020- 9759 00004293 202020202020202020- 9759 0000429C 202020202020202020- 9759 000042A5 202020202020202020- 9759 000042AE 202020202020202020- 9759 000042B7 202020202020202020- 9759 000042C0 202020202020202020- 9759 000042C9 2020202020202020 9760 000042D1 507265737320455343- db "Press ESC to cancel. " 9760 000042DA 20746F2063616E6365- 9760 000042E3 6C2E20202020202020- 9760 000042EC 202020202020202020- 9760 000042F5 202020202020202020- 9760 000042FE 202020202020202020- 9760 00004307 202020202020202020- 9760 00004310 202020202020202020- 9760 00004319 2020202020202020 9761 00004321 202020202020202020- db " " 9761 0000432A 202020202020202020- 9761 00004333 202020202020202020- 9761 0000433C 202020202020202020- 9761 00004345 202020202020202020- 9761 0000434E 202020202020202020- 9761 00004357 202020202020202020- 9761 00004360 202020202020202020- 9761 00004369 2020202020202020 9762 00004371 00 db 0 9763 9764 TrDOS_Welcome: 9765 00004372 0D0A db 0Dh, 0Ah 9766 00004374 54522D444F53203338- db 'TR-DOS 386 Fixed Disk Partitioning Utility' 9766 0000437D 362046697865642044- 9766 00004386 69736B205061727469- 9766 0000438F 74696F6E696E672055- 9766 00004398 74696C697479 9767 0000439E 0D0A db 0Dh, 0Ah 9768 000043A0 76312E302E32313033- db "v1.0.210321 (c) Erdogan TAN 2021" 9768 000043A9 323120286329204572- 9768 000043B2 646F67616E2054414E- 9768 000043BB 2032303231 9769 000043C0 0D0A db 0Dh,0Ah 9770 000043C2 0D0A db 0Dh,0Ah 9771 000043C4 00 db 0 9772 TrDOS_Usage: 9773 000043C5 55736167653A206664- db 'Usage: fdisk3 ' 9773 000043CE 69736B33203C686172- 9773 000043D7 64206469736B206E61- 9773 000043E0 6D653E20 9774 000043E4 0D0A db 0Dh, 0Ah 9775 000043E6 0D0A db 0Dh, 0Ah 9776 000043E8 48617264206469736B- db "Hard disk names: " 9776 000043F1 206E616D65733A20 9777 000043F9 0D0A db 0Dh, 0Ah 9778 000043FB 0D0A db 0Dh, 0Ah 9779 000043FD 20686430202E2E666F- db " hd0 ..for 1st hard disk " 9779 00004406 722031737420686172- 9779 0000440F 64206469736B20 9780 00004416 0D0A db 0Dh, 0Ah 9781 00004418 20686431202E2E666F- db " hd1 ..for 2nd hard disk " 9781 00004421 7220326E6420686172- 9781 0000442A 64206469736B20 9782 00004431 0D0A db 0Dh, 0Ah 9783 00004433 20686432202E2E666F- db " hd2 ..for 3rd hard disk " 9783 0000443C 722033726420686172- 9783 00004445 64206469736B20 9784 0000444C 0D0A db 0Dh, 0Ah 9785 0000444E 20686433202E2E666F- db " hd3 ..for 4th hard disk " 9785 00004457 722034746820686172- 9785 00004460 64206469736B20 9786 00004467 0D0A00 db 0Dh, 0Ah, 0 9787 9788 TrDOS_Options: 9789 0000446A 53656C656374206861- db "Select hard disk number (1 to " 9789 00004473 7264206469736B206E- 9789 0000447C 756D62657220283120- 9789 00004485 746F20 9790 TrDOS_dnmax: 9791 00004488 3429206F7220707265- db "4) or press ESC to exit ..." 9791 00004491 73732045534320746F- 9791 0000449A 2065786974202E2E2E 9792 000044A3 0D0A00 db 0Dh, 0Ah, 0 9793 TrDOS_hdrow: 9794 000044A6 0D0A db 0Dh, 0Ah 9795 000044A8 28 db "(" 9796 TrDOS_hdrow_n: 9797 000044A9 3029206864 db "0) hd" 9798 TrDOS_hdrow_i: 9799 000044AE 30202D204361706163- db "0 - Capacity : " 9799 000044B7 697479203A20 9800 000044BD 00 db 0 9801 TrDOS_hdrow_unit: 9802 000044BE 474220 db "GB " 9803 000044C1 0D0A00 db 0Dh, 0Ah, 0 9804 9805 TrDOS_hdrow_capacity: 9806 000044C4 303030302000 db "0000 ", 0 9807 000044CA 00 db 0 9808 9809 TrDOS_disksize: 9810 000044CB 0D0A db 0Dh, 0Ah 9811 000044CD 4469736B2073697A65- db "Disk size : " 9811 000044D6 203A20 9812 000044D9 00 db 0 9813 9814 msg_fdisk_capacity_err: 9815 000044DA 0D0A db 0Dh, 0Ah 9816 000044DC 48756765206469736B- db "Huge disk !" 9816 000044E5 2021 9817 000044E7 0D0A db 0Dh, 0Ah 9818 000044E9 546869732046444953- db "This FDISK version (v3) can work with disk sizes up to " 9818 000044F2 4B2076657273696F6E- 9818 000044FB 20287633292063616E- 9818 00004504 20776F726B20776974- 9818 0000450D 68206469736B207369- 9818 00004516 7A657320757020746F- 9818 0000451F 20 9819 00004520 00 db 0 9820 9821 msg_any_key_esc_exit: 9822 00004521 0D0A db 0Dh, 0Ah 9823 00004523 507265737320455343- db "Press ESC to exit or press another key to continue..." 9823 0000452C 20746F206578697420- 9823 00004535 6F7220707265737320- 9823 0000453E 616E6F74686572206B- 9823 00004547 657920746F20636F6E- 9823 00004550 74696E75652E2E2E 9824 00004558 00 db 0 9825 9826 msg_create_partition_h: 9827 00004559 0D0A db 0Dh, 0Ah 9828 0000455B 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9828 00004564 2D2D2D2D2D2D2D2D2D- 9828 0000456D 2D2D2D2D2D2D2D2D2D- 9828 00004576 2D2D2D2D2D2D2D2D2D- 9828 0000457F 2D2D2D2D2D2D2D2D2D- 9828 00004588 2D2D2D2D2D2D2D2D2D- 9828 00004591 2D2D2D2D2D2D2D2D2D- 9828 0000459A 2D2D2D2D2D2D2D2D2D- 9828 000045A3 2D2D2D2D2D2D2D2D 9829 000045AB 202020202020202020- db " Create Partition " 9829 000045B4 202020202020202020- 9829 000045BD 202020202020202020- 9829 000045C6 202020204372656174- 9829 000045CF 652050617274697469- 9829 000045D8 6F6E20202020202020- 9829 000045E1 202020202020202020- 9829 000045EA 202020202020202020- 9829 000045F3 2020202020202020 9830 000045FB 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9830 00004604 2D2D2D2D2D2D2D2D2D- 9830 0000460D 2D2D2D2D2D2D2D2D2D- 9830 00004616 2D2D2D2D2D2D2D2D2D- 9830 0000461F 2D2D2D2D2D2D2D2D2D- 9830 00004628 2D2D2D2D2D2D2D2D2D- 9830 00004631 2D2D2D2D2D2D2D2D2D- 9830 0000463A 2D2D2D2D2D2D2D2D2D- 9830 00004643 2D2D2D2D2D2D2D2D 9831 0000464B 0D0A00 db 0Dh, 0Ah, 0 9832 msg_create_partition_m: 9833 0000464E 53656C65637420616E- db "Select an option: " 9833 00004657 206F7074696F6E3A20 9834 00004660 0D0A db 0Dh, 0Ah 9835 00004662 0D0A db 0Dh, 0Ah 9836 00004664 202031292043726561- db " 1) Create DOS partition ", 0Dh, 0Ah 9836 0000466D 746520444F53207061- 9836 00004676 72746974696F6E200D- 9836 0000467F 0A 9837 00004680 202032292043726561- db " 2) Create SINGLIX FS partition ", 0Dh, 0Ah 9837 00004689 74652053494E474C49- 9837 00004692 582046532070617274- 9837 0000469B 6974696F6E200D0A 9838 000046A3 202033292043726561- db " 3) Create RETRO UNIX partition ", 0Dh, 0Ah 9838 000046AC 746520524554524F20- 9838 000046B5 554E49582070617274- 9838 000046BE 6974696F6E200D0A 9839 000046C6 202034292043726561- db " 4) Create another type of partition ", 0Dh, 0Ah 9839 000046CF 746520616E6F746865- 9839 000046D8 722074797065206F66- 9839 000046E1 20706172746974696F- 9839 000046EA 6E200D0A 9840 000046EE 0D0A db 0Dh, 0Ah 9841 000046F0 507265737320455343- db "Press ESC or 0 to cancel .. " 9841 000046F9 206F72203020746F20- 9841 00004702 63616E63656C202E2E- 9841 0000470B 20 9842 0000470C 0D0A00 db 0Dh, 0Ah, 0 9843 9844 msg_create_primary_partition_h: 9845 0000470F 0D0A db 0Dh, 0Ah 9846 00004711 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9846 0000471A 2D2D2D2D2D2D2D2D2D- 9846 00004723 2D2D2D2D2D2D2D2D2D- 9846 0000472C 2D2D2D2D2D2D2D2D2D- 9846 00004735 2D2D2D2D2D2D2D2D2D- 9846 0000473E 2D2D2D2D2D2D2D2D2D- 9846 00004747 2D2D2D2D2D2D2D2D2D- 9846 00004750 2D2D2D2D2D2D2D2D2D- 9846 00004759 2D2D2D2D2D2D2D2D 9847 00004761 202020202020202020- db " Create Primary DOS Partition " 9847 0000476A 202020202020202020- 9847 00004773 202020202020202043- 9847 0000477C 726561746520507269- 9847 00004785 6D61727920444F5320- 9847 0000478E 506172746974696F6E- 9847 00004797 202020202020202020- 9847 000047A0 202020202020202020- 9847 000047A9 2020202020202020 9848 000047B1 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9848 000047BA 2D2D2D2D2D2D2D2D2D- 9848 000047C3 2D2D2D2D2D2D2D2D2D- 9848 000047CC 2D2D2D2D2D2D2D2D2D- 9848 000047D5 2D2D2D2D2D2D2D2D2D- 9848 000047DE 2D2D2D2D2D2D2D2D2D- 9848 000047E7 2D2D2D2D2D2D2D2D2D- 9848 000047F0 2D2D2D2D2D2D2D2D2D- 9848 000047F9 2D2D2D2D2D2D2D2D 9849 00004801 0D0A00 db 0Dh, 0Ah, 0 9850 9851 msg_create_dos_partition_h: 9852 00004804 0D0A db 0Dh, 0Ah 9853 00004806 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9853 0000480F 2D2D2D2D2D2D2D2D2D- 9853 00004818 2D2D2D2D2D2D2D2D2D- 9853 00004821 2D2D2D2D2D2D2D2D2D- 9853 0000482A 2D2D2D2D2D2D2D2D2D- 9853 00004833 2D2D2D2D2D2D2D2D2D- 9853 0000483C 2D2D2D2D2D2D2D2D2D- 9853 00004845 2D2D2D2D2D2D2D2D2D- 9853 0000484E 2D2D2D2D2D2D2D2D 9854 00004856 202020202020202020- db " Create DOS Partition or Logical DOS Drive " 9854 0000485F 202020202020202020- 9854 00004868 204372656174652044- 9854 00004871 4F5320506172746974- 9854 0000487A 696F6E206F72204C6F- 9854 00004883 676963616C20444F53- 9854 0000488C 204472697665202020- 9854 00004895 202020202020202020- 9854 0000489E 2020202020202020 9855 000048A6 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9855 000048AF 2D2D2D2D2D2D2D2D2D- 9855 000048B8 2D2D2D2D2D2D2D2D2D- 9855 000048C1 2D2D2D2D2D2D2D2D2D- 9855 000048CA 2D2D2D2D2D2D2D2D2D- 9855 000048D3 2D2D2D2D2D2D2D2D2D- 9855 000048DC 2D2D2D2D2D2D2D2D2D- 9855 000048E5 2D2D2D2D2D2D2D2D2D- 9855 000048EE 2D2D2D2D2D2D2D2D 9856 000048F6 0D0A00 db 0Dh, 0Ah, 0 9857 9858 msg_create_ext_partition_h: 9859 000048F9 0D0A db 0Dh, 0Ah 9860 000048FB 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9860 00004904 2D2D2D2D2D2D2D2D2D- 9860 0000490D 2D2D2D2D2D2D2D2D2D- 9860 00004916 2D2D2D2D2D2D2D2D2D- 9860 0000491F 2D2D2D2D2D2D2D2D2D- 9860 00004928 2D2D2D2D2D2D2D2D2D- 9860 00004931 2D2D2D2D2D2D2D2D2D- 9860 0000493A 2D2D2D2D2D2D2D2D2D- 9860 00004943 2D2D2D2D2D2D2D2D 9861 0000494B 202020202020202020- db " Create Extended DOS Partition " 9861 00004954 202020202020202020- 9861 0000495D 202020202020204372- 9861 00004966 656174652045787465- 9861 0000496F 6E64656420444F5320- 9861 00004978 506172746974696F6E- 9861 00004981 202020202020202020- 9861 0000498A 202020202020202020- 9861 00004993 2020202020202020 9862 0000499B 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9862 000049A4 2D2D2D2D2D2D2D2D2D- 9862 000049AD 2D2D2D2D2D2D2D2D2D- 9862 000049B6 2D2D2D2D2D2D2D2D2D- 9862 000049BF 2D2D2D2D2D2D2D2D2D- 9862 000049C8 2D2D2D2D2D2D2D2D2D- 9862 000049D1 2D2D2D2D2D2D2D2D2D- 9862 000049DA 2D2D2D2D2D2D2D2D2D- 9862 000049E3 2D2D2D2D2D2D2D2D 9863 000049EB 0D0A00 db 0Dh, 0Ah, 0 9864 9865 msg_create_logical_drive_h: 9866 000049EE 0D0A db 0Dh, 0Ah 9867 000049F0 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9867 000049F9 2D2D2D2D2D2D2D2D2D- 9867 00004A02 2D2D2D2D2D2D2D2D2D- 9867 00004A0B 2D2D2D2D2D2D2D2D2D- 9867 00004A14 2D2D2D2D2D2D2D2D2D- 9867 00004A1D 2D2D2D2D2D2D2D2D2D- 9867 00004A26 2D2D2D2D2D2D2D2D2D- 9867 00004A2F 2D2D2D2D2D2D2D2D2D- 9867 00004A38 2D2D2D2D2D2D2D2D 9868 00004A40 202020202020202020- db " Create Logical DOS Drive " 9868 00004A49 202020202020202020- 9868 00004A52 202020202020202020- 9868 00004A5B 20437265617465204C- 9868 00004A64 6F676963616C20444F- 9868 00004A6D 532044726976652020- 9868 00004A76 202020202020202020- 9868 00004A7F 202020202020202020- 9868 00004A88 2020202020202020 9869 00004A90 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9869 00004A99 2D2D2D2D2D2D2D2D2D- 9869 00004AA2 2D2D2D2D2D2D2D2D2D- 9869 00004AAB 2D2D2D2D2D2D2D2D2D- 9869 00004AB4 2D2D2D2D2D2D2D2D2D- 9869 00004ABD 2D2D2D2D2D2D2D2D2D- 9869 00004AC6 2D2D2D2D2D2D2D2D2D- 9869 00004ACF 2D2D2D2D2D2D2D2D2D- 9869 00004AD8 2D2D2D2D2D2D2D2D 9870 00004AE0 0D0A00 db 0Dh, 0Ah, 0 9871 9872 msg_create_nondos_partition_h: 9873 00004AE3 0D0A db 0Dh, 0Ah 9874 00004AE5 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9874 00004AEE 2D2D2D2D2D2D2D2D2D- 9874 00004AF7 2D2D2D2D2D2D2D2D2D- 9874 00004B00 2D2D2D2D2D2D2D2D2D- 9874 00004B09 2D2D2D2D2D2D2D2D2D- 9874 00004B12 2D2D2D2D2D2D2D2D2D- 9874 00004B1B 2D2D2D2D2D2D2D2D2D- 9874 00004B24 2D2D2D2D2D2D2D2D2D- 9874 00004B2D 2D2D2D2D2D2D2D2D 9875 00004B35 202020202020202020- db " Create NON-DOS Partition " 9875 00004B3E 202020202020202020- 9875 00004B47 202020202020202020- 9875 00004B50 20437265617465204E- 9875 00004B59 4F4E2D444F53205061- 9875 00004B62 72746974696F6E2020- 9875 00004B6B 202020202020202020- 9875 00004B74 202020202020202020- 9875 00004B7D 2020202020202020 9876 00004B85 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9876 00004B8E 2D2D2D2D2D2D2D2D2D- 9876 00004B97 2D2D2D2D2D2D2D2D2D- 9876 00004BA0 2D2D2D2D2D2D2D2D2D- 9876 00004BA9 2D2D2D2D2D2D2D2D2D- 9876 00004BB2 2D2D2D2D2D2D2D2D2D- 9876 00004BBB 2D2D2D2D2D2D2D2D2D- 9876 00004BC4 2D2D2D2D2D2D2D2D2D- 9876 00004BCD 2D2D2D2D2D2D2D2D 9877 00004BD5 0D0A00 db 0Dh, 0Ah, 0 9878 9879 msg_create_dos_partition_m: 9880 00004BD8 53656C65637420616E- db "Select an option: " 9880 00004BE1 206F7074696F6E3A20 9881 00004BEA 0D0A db 0Dh, 0Ah 9882 00004BEC 0D0A db 0Dh, 0Ah 9883 00004BEE 202031292043726561- db " 1) Create Primary DOS partition ", 0Dh, 0Ah 9883 00004BF7 7465205072696D6172- 9883 00004C00 7920444F5320706172- 9883 00004C09 746974696F6E200D0A 9884 00004C12 202032292043726561- db " 2) Create Extended DOS partition ", 0Dh, 0Ah 9884 00004C1B 746520457874656E64- 9884 00004C24 656420444F53207061- 9884 00004C2D 72746974696F6E200D- 9884 00004C36 0A 9885 00004C37 202033292043726561- db " 3) Create Logical DOS drive(s) in Extended DOS partition ", 0Dh, 0Ah 9885 00004C40 7465204C6F67696361- 9885 00004C49 6C20444F5320647269- 9885 00004C52 766528732920696E20- 9885 00004C5B 457874656E64656420- 9885 00004C64 444F53207061727469- 9885 00004C6D 74696F6E200D0A 9886 00004C74 0D0A db 0Dh, 0Ah 9887 00004C76 507265737320455343- db "Press ESC or 0 to cancel .. " 9887 00004C7F 206F72203020746F20- 9887 00004C88 63616E63656C202E2E- 9887 00004C91 20 9888 00004C92 0D0A00 db 0Dh, 0Ah, 0 9889 9890 msg_create_trdos_partition_s: 9891 00004C95 53656C65637420616E- db "Select an option to set partition size: " 9891 00004C9E 206F7074696F6E2074- 9891 00004CA7 6F2073657420706172- 9891 00004CB0 746974696F6E207369- 9891 00004CB9 7A653A20 9892 00004CBD 0D0A db 0Dh, 0Ah 9893 00004CBF 0D0A db 0Dh, 0Ah 9894 00004CC1 202043292043796C69- db " C) Cylinder count", 0Dh, 0Ah 9894 00004CCA 6E64657220636F756E- 9894 00004CD3 740D0A 9895 00004CD6 2020252920566F6C75- db " %) Volume percentage (##%)", 0Dh, 0Ah 9895 00004CDF 6D652070657263656E- 9895 00004CE8 746167652028232325- 9895 00004CF1 290D0A 9896 00004CF4 202053292053656374- db " S) Sectors (number of 512 bytes)", 0Dh, 0Ah 9896 00004CFD 6F727320286E756D62- 9896 00004D06 6572206F6620353132- 9896 00004D0F 206279746573290D0A 9897 00004D18 20204B29204B696C6F- db " K) Kilo bytes (KB, 2*K sectors)", 0Dh, 0Ah 9897 00004D21 20627974657320284B- 9897 00004D2A 422C20322A4B207365- 9897 00004D33 63746F7273290D0A 9898 00004D3B 20204D29204D656761- db " M) Mega bytes (MB, 2*1024*M sectors)", 0Dh, 0Ah 9898 00004D44 20627974657320284D- 9898 00004D4D 422C20322A31303234- 9898 00004D56 2A4D20736563746F72- 9898 00004D5F 73290D0A 9899 00004D63 202047292047696761- db " G) Giga bytes (GB, 2*1024*1024*G sectors)", 0Dh, 0Ah 9899 00004D6C 206279746573202847- 9899 00004D75 422C20322A31303234- 9899 00004D7E 2A313032342A472073- 9899 00004D87 6563746F7273290D0A 9900 00004D90 0D0A db 0Dh, 0Ah 9901 00004D92 507265737320535041- db "Press SPACE to use whole disk or press ENTER to set sector count .. " 9901 00004D9B 434520746F20757365- 9901 00004DA4 2077686F6C65206469- 9901 00004DAD 736B206F7220707265- 9901 00004DB6 737320454E54455220- 9901 00004DBF 746F20736574207365- 9901 00004DC8 63746F7220636F756E- 9901 00004DD1 74202E2E20 9902 msg_press_esc_to_cancel: 9903 00004DD6 0D0A db 0Dh, 0Ah 9904 00004DD8 285072657373204553- db "(Press ESC to CANCEL) " 9904 00004DE1 4320746F2043414E43- 9904 00004DEA 454C2920 9905 00004DEE 0D0A00 db 0Dh, 0Ah, 0 9906 9907 msg_use_whole_disk: 9908 00004DF1 446F20796F75207761- db "Do you want to use WHOLE disk !? (Y/N)", 0 9908 00004DFA 6E7420746F20757365- 9908 00004E03 2057484F4C45206469- 9908 00004E0C 736B20213F2028592F- 9908 00004E15 4E2900 9909 9910 msg_use_all_space: 9911 00004E18 446F20796F75207761- db "Do you want to use all of available space !? (Y/N)", 0 9911 00004E21 6E7420746F20757365- 9911 00004E2A 20616C6C206F662061- 9911 00004E33 7661696C61626C6520- 9911 00004E3C 737061636520213F20- 9911 00004E45 28592F4E2900 9912 9913 msg_use_entire_ep_space: 9914 00004E4B 446F20796F75207761- db "Do you want to use entire extended partition space !? (Y/N)", 0 9914 00004E54 6E7420746F20757365- 9914 00004E5D 20656E746972652065- 9914 00004E66 7874656E6465642070- 9914 00004E6F 6172746974696F6E20- 9914 00004E78 737061636520213F20- 9914 00004E81 28592F4E2900 9915 9916 msg_partition_size: 9917 00004E87 0D0A db 0Dh, 0Ah 9918 00004E89 0D0A db 0Dh, 0Ah 9919 00004E8B 506172746974696F6E- db "Partition size (" 9919 00004E94 2073697A652028 9920 msg_partition_size_x: 9921 00004E9B 3F29203A20 db "?) : " 9922 00004EA0 00 db 0 9923 9924 msg_partition_type: 9925 00004EA1 0D0A db 0Dh, 0Ah 9926 00004EA3 0D0A db 0Dh, 0Ah 9927 00004EA5 506172746974696F6E- db "Partition type : " 9927 00004EAE 2074797065203A20 9928 00004EB6 00 db 0 9929 9930 msg_ptype_num: 9931 00004EB7 3030680D0A00 db "00h", 0Dh, 0Ah, 0 9932 9933 msg_partition_type_error: 9934 00004EBD 506172746974696F6E- db "Partition size is not proper for selected partition type !" 9934 00004EC6 2073697A6520697320- 9934 00004ECF 6E6F742070726F7065- 9934 00004ED8 7220666F722073656C- 9934 00004EE1 656374656420706172- 9934 00004EEA 746974696F6E207479- 9934 00004EF3 70652021 9935 00004EF7 0D0A db 0Dh, 0Ah 9936 msg_any_key_to_retry: 9937 00004EF9 28507265737320616E- db "(Press any key to retry..)" 9937 00004F02 79206B657920746F20- 9937 00004F0B 72657472792E2E29 9938 00004F13 0D0A00 db 0Dh, 0Ah, 0 9939 9940 msg_partition_size_overs: 9941 00004F16 0D0A db 0Dh, 0Ah 9942 00004F18 506172746974696F6E- db "Partition size overs the disk capacity !" 9942 00004F21 2073697A65206F7665- 9942 00004F2A 727320746865206469- 9942 00004F33 736B20636170616369- 9942 00004F3C 74792021 9943 00004F40 0D0A db 0Dh, 0Ah 9944 00004F42 28507265737320454E- db "(Press ENTER to use WHOLE disk or press ESC key to retry..)" 9944 00004F4B 54455220746F207573- 9944 00004F54 652057484F4C452064- 9944 00004F5D 69736B206F72207072- 9944 00004F66 65737320455343206B- 9944 00004F6F 657920746F20726574- 9944 00004F78 72792E2E29 9945 00004F7D 0D0A00 db 0Dh, 0Ah, 0 9946 9947 msg_ext_partition_error: 9948 00004F80 457874656E64656420- db "Extended partition must be created after primary partition !" 9948 00004F89 706172746974696F6E- 9948 00004F92 206D75737420626520- 9948 00004F9B 637265617465642061- 9948 00004FA4 66746572207072696D- 9948 00004FAD 617279207061727469- 9948 00004FB6 74696F6E2021 9949 00004FBC 0D0A00 db 0Dh, 0Ah,0 9950 9951 msg_logical_drive_error: 9952 00004FBF 5072696D6172792061- db "Primary and extended partitions must be created before logical drive !" 9952 00004FC8 6E6420657874656E64- 9952 00004FD1 656420706172746974- 9952 00004FDA 696F6E73206D757374- 9952 00004FE3 206265206372656174- 9952 00004FEC 6564206265666F7265- 9952 00004FF5 206C6F676963616C20- 9952 00004FFE 64726976652021 9953 00005005 0D0A00 db 0Dh, 0Ah,0 9954 9955 msg_cylinder_boundary_set: 9956 00005008 0D0A db 0Dh, 0Ah 9957 0000500A 446F20796F75207761- db "Do you want to adjust partition size to cylinder boundary ? (Y/N)" 9957 00005013 6E7420746F2061646A- 9957 0000501C 757374207061727469- 9957 00005025 74696F6E2073697A65- 9957 0000502E 20746F2063796C696E- 9957 00005037 64657220626F756E64- 9957 00005040 617279203F2028592F- 9957 00005049 4E29 9958 0000504B 00 db 0 9959 9960 ; 2019 - 2020 (hdimage.s) 9961 ;msg_selected_partition: 9962 ; db " PARTITION 0 " 9963 ; db "================================================================================" 9964 ; db " S BH BS BC FS EH ES EC START SEC SECTORS FILE SYSTEM " 9965 ; db "--------------------------------------------------------------------------------" 9966 ;pt_row: db " " 9967 ; db "================================================================================" 9968 ; db 0 9969 9970 ; 24/10/2020 (fdisk3.s) 9971 msg_selected_partition: 9972 0000504C 202020202020202020- db " PARTITION 0 " 9972 00005055 202020202020202020- 9972 0000505E 202020202020202020- 9972 00005067 202020202020504152- 9972 00005070 544954494F4E203020- 9972 00005079 202020202020202020- 9972 00005082 202020202020202020- 9972 0000508B 202020202020202020- 9972 00005094 2020202020202020 9973 0000509C 3D3D3D3D3D3D3D3D3D- db "================================================================================" 9973 000050A5 3D3D3D3D3D3D3D3D3D- 9973 000050AE 3D3D3D3D3D3D3D3D3D- 9973 000050B7 3D3D3D3D3D3D3D3D3D- 9973 000050C0 3D3D3D3D3D3D3D3D3D- 9973 000050C9 3D3D3D3D3D3D3D3D3D- 9973 000050D2 3D3D3D3D3D3D3D3D3D- 9973 000050DB 3D3D3D3D3D3D3D3D3D- 9973 000050E4 3D3D3D3D3D3D3D3D 9974 000050EC 202020202020205320- db " S BH BS BC FS EH ES EC START SECT SECTORS FILE SYSTEM " 9974 000050F5 204248202042532020- 9974 000050FE 424320204653202045- 9974 00005107 482020455320204543- 9974 00005110 202020535441525420- 9974 00005119 534543542020202053- 9974 00005122 4543544F5253202020- 9974 0000512B 46494C452053595354- 9974 00005134 454D202020202020 9975 0000513C 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 9975 00005145 2D2D2D2D2D2D2D2D2D- 9975 0000514E 2D2D2D2D2D2D2D2D2D- 9975 00005157 2D2D2D2D2D2D2D2D2D- 9975 00005160 2D2D2D2D2D2D2D2D2D- 9975 00005169 2D2D2D2D2D2D2D2D2D- 9975 00005172 2D2D2D2D2D2D2D2D2D- 9975 0000517B 2D2D2D2D2D2D2D2D2D- 9975 00005184 2D2D2D2D2D2D2D2D 9976 0000518C 202020202020202020- pt_row: db " " 9976 00005195 202020202020202020- 9976 0000519E 202020202020202020- 9976 000051A7 202020202020202020- 9976 000051B0 202020202020202020- 9976 000051B9 202020202020202020- 9976 000051C2 202020202020202020- 9976 000051CB 202020202020202020- 9976 000051D4 2020202020202020 9977 000051DC 3D3D3D3D3D3D3D3D3D- db "================================================================================" 9977 000051E5 3D3D3D3D3D3D3D3D3D- 9977 000051EE 3D3D3D3D3D3D3D3D3D- 9977 000051F7 3D3D3D3D3D3D3D3D3D- 9977 00005200 3D3D3D3D3D3D3D3D3D- 9977 00005209 3D3D3D3D3D3D3D3D3D- 9977 00005212 3D3D3D3D3D3D3D3D3D- 9977 0000521B 3D3D3D3D3D3D3D3D3D- 9977 00005224 3D3D3D3D3D3D3D3D 9978 0000522C 00 db 0 9979 msg_boot_indicator: 9980 0000522D 0D0A db 0Dh, 0Ah 9981 0000522F 20202020426F6F7420- db " Boot Indicator : ", 0 ; "YES", "NO" 9981 00005238 496E64696361746F72- 9981 00005241 203A2000 9982 msg_starting_head: 9983 00005245 0D0A db 0Dh, 0Ah 9984 00005247 202020202053746172- db " Starting Head : ", 0 9984 00005250 74696E672048656164- 9984 00005259 203A2000 9985 msg_starting_sector: 9986 0000525D 0D0A db 0Dh, 0Ah 9987 0000525F 202020537461727469- db " Starting Sector : ", 0 9987 00005268 6E6720536563746F72- 9987 00005271 203A2000 9988 msg_starting_cylinder: 9989 00005275 0D0A db 0Dh, 0Ah 9990 00005277 205374617274696E67- db " Starting Cylinder : ", 0 9990 00005280 2043796C696E646572- 9990 00005289 203A2000 9991 msg_system_id: 9992 0000528D 0D0A db 0Dh, 0Ah 9993 0000528F 202020202020202020- db " System ID : ", 0 9993 00005298 53797374656D204944- 9993 000052A1 203A2000 9994 msg_ending_head: 9995 000052A5 0D0A db 0Dh, 0Ah 9996 000052A7 20202020202020456E- db " Ending Head : ", 0 9996 000052B0 64696E672048656164- 9996 000052B9 203A2000 9997 msg_ending_sector: 9998 000052BD 0D0A db 0Dh, 0Ah 9999 000052BF 2020202020456E6469- db " Ending Sector : ", 0 9999 000052C8 6E6720536563746F72- 9999 000052D1 203A2000 10000 msg_ending_cylinder: 10001 000052D5 0D0A db 0Dh, 0Ah 10002 000052D7 202020456E64696E67- db " Ending Cylinder : ", 0 10002 000052E0 2043796C696E646572- 10002 000052E9 203A2000 10003 msg_relative_sectors: 10004 000052ED 0D0A db 0Dh, 0Ah 10005 000052EF 0D0A db 0Dh, 0Ah 10006 000052F1 202052656C61746976- db " Relative Sectors : ", 0 10006 000052FA 6520536563746F7273- 10006 00005303 203A2000 10007 msg_total_sectors: 10008 00005307 0D0A db 0Dh, 0Ah 10009 00005309 2020202020546F7461- db " Total Sectors : ", 0 10009 00005312 6C20536563746F7273- 10009 0000531B 203A2000 10010 10011 msg_format_stage: 10012 0000531F 0D0A db 0Dh, 0Ah 10013 00005321 507265737320454E54- db "Press ENTER to FORMAT disk partition " 10013 0000532A 455220746F20464F52- 10013 00005333 4D4154206469736B20- 10013 0000533C 706172746974696F6E- 10013 00005345 20 10014 partition_num_chr: 10015 00005346 30 db "0" 10016 00005347 206F72207072657373- db " or press ESC to EXIT.." 10016 00005350 2045534320746F2045- 10016 00005359 5849542E2E 10017 0000535E 00 db 0 10018 msg_partition_edit: 10019 0000535F 0D0A db 0Dh, 0Ah 10020 00005361 2E2E206F7220707265- db ".. or press SPACE to EDIT partition table." 10020 0000536A 737320535041434520- 10020 00005373 746F20454449542070- 10020 0000537C 6172746974696F6E20- 10020 00005385 7461626C652E 10021 0000538B 0D0A00 db 0Dh, 0Ah, 0 10022 10023 msg_edit_or_exit: 10024 0000538E 0D0A db 0Dh, 0Ah 10025 00005390 507265737320454E54- db "Press ENTER to continue or press ESC to exit.." 10025 00005399 455220746F20636F6E- 10025 000053A2 74696E7565206F7220- 10025 000053AB 707265737320455343- 10025 000053B4 20746F20657869742E- 10025 000053BD 2E 10026 000053BE 00 db 0 10027 10028 msg_overwrite_question1: 10029 000053BF 0D0A db 0Dh, 0Ah 10030 000053C1 446F20796F75207761- db 'Do you want to overwrite ' 10030 000053CA 6E7420746F206F7665- 10030 000053D3 72777269746520 10031 000053DA 27 db 27h 10032 000053DB 00 db 0 10033 10034 msg_overwrite_question2: 10035 000053DC 27 db 27h 10036 000053DD 2066696C6520 db ' file ' 10037 000053E3 00 db 0 10038 10039 msg_format_question: 10040 000053E4 0D0A db 0Dh, 0Ah 10041 000053E6 446F20796F75207761- db "Do you want to format partition " 10041 000053EF 6E7420746F20666F72- 10041 000053F8 6D6174207061727469- 10041 00005401 74696F6E20 10042 partition_num_txt: 10043 00005406 3020 db "0 " 10044 msg_yes_no: 10045 00005408 285965732F4E6F293F- db '(Yes/No)? ', 0 10045 00005411 2000 10046 10047 msg_writing_mbr: 10048 00005413 57726974696E67206D- db "Writing masterboot sector...", 0 10048 0000541C 6173746572626F6F74- 10048 00005425 20736563746F722E2E- 10048 0000542E 2E00 10049 10050 msg_writing_disk_sectors: 10051 00005430 57726974696E672064- db "Writing disk sector: ", 0 10051 00005439 69736B20736563746F- 10051 00005442 723A2000 10052 10053 Msg_Writing_Boot_Sector: 10054 00005446 57726974696E672074- db "Writing trdos boot sector...", 0 10054 0000544F 72646F7320626F6F74- 10054 00005458 20736563746F722E2E- 10054 00005461 2E00 10055 10056 Msg_Writing_Root_Dir: 10057 00005463 57726974696E672072- db "Writing root directory sectors...", 0 10057 0000546C 6F6F74206469726563- 10057 00005475 746F72792073656374- 10057 0000547E 6F72732E2E2E00 10058 10059 Msg_Writing_Data_Sectors: 10060 00005485 57726974696E672064- db "Writing data sector: ", 0 10060 0000548E 61746120736563746F- 10060 00005497 723A2000 10061 10062 Sector_Str: 10063 0000549B 3030303030303000 db "0000000", 0 10064 Cursor_Pos: 10065 000054A3 0000 dw 0 10066 10067 Msg_Writing_FAT_Sectors: 10068 000054A5 57726974696E672046- db "Writing FAT sectors...", 0 10068 000054AE 415420736563746F72- 10068 000054B7 732E2E2E00 10069 10070 StrVolumeName: 10071 ;times 12 db 0 10072 000054BC 00 times 65 db 0 ; 05/01/2018 (fs1 volume name) 10073 10074 Msg_Volume_Name: 10075 000054FD 0D0A db 0Dh, 0Ah 10076 000054FF 0D0A db 0Dh, 0Ah 10077 00005501 566F6C756D65204E61- db "Volume Name: ", 0 10077 0000550A 6D653A2000 10078 10079 Msg_Volume_Serial: 10080 0000550F 566F6C756D65205365- db "Volume Serial No: " 10080 00005518 7269616C204E6F3A20 10081 Vol_Serial1: 10082 00005521 30303030 db "0000" 10083 00005525 2D db "-" 10084 Vol_Serial2: 10085 00005526 30303030 db "0000" 10086 0000552A 0D0A00 db 0Dh, 0Ah, 0 10087 10088 msg_cluster_count: 10089 0000552D 436C75737465722043- db "Cluster Count: ", 0 10089 00005536 6F756E743A2000 10090 cluster_count_str: 10091 0000553D 30303030303030 db "0000000" 10092 00005544 0D0A00 db 0Dh, 0Ah, 0 10093 msg_formatting: 10094 00005547 466F726D617474696E- db "Formatting ", 0 10094 00005550 672000 10095 format_percent_str: 10096 00005553 30303025 db "000%" 10097 00005557 00 db 0 10098 10099 Msg_3dot_OK: 10100 00005558 2E2E2E db "..." 10101 Msg_OK: 10102 0000555B 204F4B2E db ' OK.' 10103 CRLF: 10104 0000555F 0D0A00 db 0Dh, 0Ah, 0 10105 10106 Msg_Error: 10107 00005562 0D0A db 0Dh, 0Ah 10108 00005564 4572726F72202120 db 'Error ! ' 10109 0000556C 28 db '(' 10110 error_code: 10111 0000556D 3030 dw 3030h 10112 0000556F 68 db 'h' 10113 00005570 2920 db ') ' 10114 00005572 0D0A db 0Dh, 0Ah 10115 00005574 00 db 0 10116 10117 msg_disk_sectors: 10118 00005575 546F74616C20446973- db "Total Disk Sectors : ", 0 10118 0000557E 6B20536563746F7273- 10118 00005587 203A2000 10119 10120 str_disk_sectors: 10121 ;times 8 db 0 10122 0000558B 00 times 11 db 0 ; 27/10/2020 10123 10124 msg_ep_size: 10125 00005596 457874656E64656420- db "Extended Partition Size in Sectors: ", 0 10125 0000559F 506172746974696F6E- 10125 000055A8 2053697A6520696E20- 10125 000055B1 536563746F72733A20- 10125 000055BA 00 10126 10127 msg_press_any_key: 10128 000055BB 0D0A db 0Dh, 0Ah 10129 000055BD 50726573732061206B- db "Press a key to continue..." 10129 000055C6 657920746F20636F6E- 10129 000055CF 74696E75652E2E2E 10130 000055D7 0D0A00 db 0Dh, 0Ah, 0 10131 10132 align 2 10133 10134 ; Masterboot sector 10135 10136 MasterBootBuff: 10137 MasterBootCode: 10138 000055DA 00 times 446 db 0 10139 PartitionTable: 10140 00005798 00 times 64 db 0 10141 MBIDCode: 10142 000057D8 0000 dw 0 10143 10144 PTable_Buffer: 10145 000057DA 00 times 64 db 0 10146 10147 0000581A 286329204572646F67- db '(c) Erdogan TAN 2019-2021' 10147 00005823 616E2054414E203230- 10147 0000582C 31392D32303231 10148 10149 ; 05/11/2020 10150 00005833 00 db 0 10151 10152 ; 2019 - 2020 (hdimage.s) 10153 ;p_table_header: 10154 ; db " ?BR PARTITION TABLE " 10155 ; db "================================================================================" 10156 ; db " P S BH BS BC FS EH ES EC START SEC SECTORS FILE SYSTEM " 10157 ; db "--------------------------------------------------------------------------------" 10158 ; db 0 10159 ;p_table_footer: 10160 ; db "================================================================================" 10161 ; db 0Dh, 0Ah, 0 10162 10163 ; 24/10/2020 (fdisk3.s) 10164 p_table_header: 10165 00005834 202020202020202020- db " ?BR PARTITION TABLE " 10165 0000583D 202020202020202020- 10165 00005846 202020202020202020- 10165 0000584F 2020203F4252205041- 10165 00005858 52544954494F4E2054- 10165 00005861 41424C452020202020- 10165 0000586A 202020202020202020- 10165 00005873 202020202020202020- 10165 0000587C 2020202020202020 10166 00005884 3D3D3D3D3D3D3D3D3D- db "================================================================================" 10166 0000588D 3D3D3D3D3D3D3D3D3D- 10166 00005896 3D3D3D3D3D3D3D3D3D- 10166 0000589F 3D3D3D3D3D3D3D3D3D- 10166 000058A8 3D3D3D3D3D3D3D3D3D- 10166 000058B1 3D3D3D3D3D3D3D3D3D- 10166 000058BA 3D3D3D3D3D3D3D3D3D- 10166 000058C3 3D3D3D3D3D3D3D3D3D- 10166 000058CC 3D3D3D3D3D3D3D3D 10167 000058D4 202020502020205320- db " P S BH BS BC FS EH ES EC START SECT SECTORS FILE SYSTEM " 10167 000058DD 204248202042532020- 10167 000058E6 424320204653202045- 10167 000058EF 482020455320204543- 10167 000058F8 202020535441525420- 10167 00005901 534543542020202053- 10167 0000590A 4543544F5253202020- 10167 00005913 2046494C4520535953- 10167 0000591C 54454D2020202020 10168 00005924 2D2D2D2D2D2D2D2D2D- db "--------------------------------------------------------------------------------" 10168 0000592D 2D2D2D2D2D2D2D2D2D- 10168 00005936 2D2D2D2D2D2D2D2D2D- 10168 0000593F 2D2D2D2D2D2D2D2D2D- 10168 00005948 2D2D2D2D2D2D2D2D2D- 10168 00005951 2D2D2D2D2D2D2D2D2D- 10168 0000595A 2D2D2D2D2D2D2D2D2D- 10168 00005963 2D2D2D2D2D2D2D2D2D- 10168 0000596C 2D2D2D2D2D2D2D2D 10169 00005974 00 db 0 10170 p_table_footer: 10171 00005975 3D3D3D3D3D3D3D3D3D- db "================================================================================" 10171 0000597E 3D3D3D3D3D3D3D3D3D- 10171 00005987 3D3D3D3D3D3D3D3D3D- 10171 00005990 3D3D3D3D3D3D3D3D3D- 10171 00005999 3D3D3D3D3D3D3D3D3D- 10171 000059A2 3D3D3D3D3D3D3D3D3D- 10171 000059AB 3D3D3D3D3D3D3D3D3D- 10171 000059B4 3D3D3D3D3D3D3D3D3D- 10171 000059BD 3D3D3D3D3D3D3D3D 10172 000059C5 0D0A00 db 0Dh, 0Ah, 0 10173 10174 mbr_editing_options: 10175 000059C8 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10176 000059CC 4D4252205061727469- db "MBR Partition Table Editing Options:" 10176 000059D5 74696F6E205461626C- 10176 000059DE 652045646974696E67- 10176 000059E7 204F7074696F6E733A 10177 000059F0 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10178 000059F4 20202020202020312E- db " 1. Create Partition", 0Dh, 0Ah 10178 000059FD 204372656174652050- 10178 00005A06 6172746974696F6E0D- 10178 00005A0F 0A 10179 00005A10 20202020202020322E- db " 2. Set Active Partition", 0Dh, 0Ah 10179 00005A19 205365742041637469- 10179 00005A22 766520506172746974- 10179 00005A2B 696F6E0D0A 10180 00005A30 20202020202020332E- db " 3. Delete Partition", 0Dh, 0Ah 10180 00005A39 2044656C6574652050- 10180 00005A42 6172746974696F6E0D- 10180 00005A4B 0A 10181 00005A4C 20202020202020342E- db " 4. Write Current Partition Table", 0Dh, 0Ah, 0 10181 00005A55 205772697465204375- 10181 00005A5E 7272656E7420506172- 10181 00005A67 746974696F6E205461- 10181 00005A70 626C650D0A00 10182 10183 enter_option_number_msg: 10184 00005A76 0D0A db 0Dh, 0Ah 10185 00005A78 456E74657220746865- db "Enter the option number or press ESC to exit ...", 0Dh, 0Ah 10185 00005A81 206F7074696F6E206E- 10185 00005A8A 756D626572206F7220- 10185 00005A93 707265737320455343- 10185 00005A9C 20746F206578697420- 10185 00005AA5 2E2E2E0D0A 10186 ;db 0Dh, 0Ah, 0 10187 00005AAA 00 db 0 10188 10189 msg_zero_partition_size: ; 19/02/2019 10190 00005AAB 0D0A db 0Dh, 0Ah 10191 00005AAD 506172746974696F6E- db "Partition size input must not be ZERO !", 0Dh, 0Ah 10191 00005AB6 2073697A6520696E70- 10191 00005ABF 7574206D757374206E- 10191 00005AC8 6F74206265205A4552- 10191 00005AD1 4F20210D0A 10192 00005AD6 285072657373204553- db "(Press ESC to exit or press another key to retry..)", 0Dh, 0Ah 10192 00005ADF 4320746F2065786974- 10192 00005AE8 206F72207072657373- 10192 00005AF1 20616E6F7468657220- 10192 00005AFA 6B657920746F207265- 10192 00005B03 7472792E2E290D0A 10193 00005B0B 00 db 0 10194 10195 msg_empty_pt: 10196 00005B0C 0D0A db 0Dh, 0Ah 10197 00005B0E 456D70747920706172- db "Empty partition table !", 0Dh, 0Ah 10197 00005B17 746974696F6E207461- 10197 00005B20 626C6520210D0A 10198 00005B27 28412076616C696420- db "(A valid partition must be created at first..)", 0Dh, 0Ah 10198 00005B30 706172746974696F6E- 10198 00005B39 206D75737420626520- 10198 00005B42 637265617465642061- 10198 00005B4B 742066697273742E2E- 10198 00005B54 290D0A 10199 00005B57 00 db 0 10200 10201 msg_full_pt: 10202 00005B58 0D0A db 0Dh, 0Ah 10203 00005B5A 546865726520697320- db "There is not a free partition table entry ", 0 10203 00005B63 6E6F74206120667265- 10203 00005B6C 652070617274697469- 10203 00005B75 6F6E207461626C6520- 10203 00005B7E 656E7472792000 10204 msg_to_create_new_p: 10205 00005B85 746F20637265617465- db "to create a new partition !", 0Dh, 0Ah 10205 00005B8E 2061206E6577207061- 10205 00005B97 72746974696F6E2021- 10205 00005BA0 0D0A 10206 00005BA2 00 db 0 10207 msg_no_free_space: 10208 00005BA3 0D0A db 0Dh, 0Ah 10209 00005BA5 546865726520697320- db "There is not (enough) free space ", 0 10209 00005BAE 6E6F742028656E6F75- 10209 00005BB7 676829206672656520- 10209 00005BC0 73706163652000 10210 10211 msg_enter_pn_to_del: 10212 00005BC7 0D0A db 0Dh, 0Ah 10213 00005BC9 456E74657220706172- db "Enter partition number to delete: " 10213 00005BD2 746974696F6E206E75- 10213 00005BDB 6D62657220746F2064- 10213 00005BE4 656C6574653A20 10214 chr_del_pnum1: 10215 00005BEB 00 db 0 10216 00005BEC 0D0A00 db 0Dh, 0Ah, 0 10217 10218 msg_delete_partition_q: 10219 00005BEF 0D0A db 0Dh, 0Ah 10220 00005BF1 5741524E494E472120- db "WARNING! All of data in the selected partition will be lost", 0Dh, 0Ah 10220 00005BFA 416C6C206F66206461- 10220 00005C03 746120696E20746865- 10220 00005C0C 2073656C6563746564- 10220 00005C15 20706172746974696F- 10220 00005C1E 6E2077696C6C206265- 10220 00005C27 206C6F73740D0A 10221 00005C2E 202020202020202020- db " after you write changed partition table to disk !!", 0Dh, 0Ah 10221 00005C37 616674657220796F75- 10221 00005C40 207772697465206368- 10221 00005C49 616E67656420706172- 10221 00005C52 746974696F6E207461- 10221 00005C5B 626C6520746F206469- 10221 00005C64 736B2021210D0A 10222 00005C6B 0D0A db 0Dh, 0Ah 10223 00005C6D 446F20796F75207761- db "Do you want to delete PARTITION " 10223 00005C76 6E7420746F2064656C- 10223 00005C7F 657465205041525449- 10223 00005C88 54494F4E20 10224 chr_del_pnum2: 10225 00005C8D 30 db '0' 10226 00005C8E 203F2028592F4E2920- db ' ? (Y/N) ', 0 10226 00005C97 00 10227 10228 _msg_YES: 10229 00005C98 20 db 20h 10230 msg_YES: 10231 00005C99 5945532000 db 'YES ', 0 10232 _msg_NO: 10233 00005C9E 20 db 20h 10234 msg_NO: 10235 00005C9F 4E4F2000 db 'NO ', 0 10236 10237 ; 11/02/2019 10238 msg_write_masterboot_sector: 10239 00005CA3 0D0A db 0Dh, 0Ah 10240 00005CA5 577269746520437572- db "Write Current Partition Table:" 10240 00005CAE 72656E742050617274- 10240 00005CB7 6974696F6E20546162- 10240 00005CC0 6C653A 10241 00005CC3 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10242 00005CC7 20312E205772697465- db " 1. Write Partition Table only", 0Dh, 0Ah 10242 00005CD0 20506172746974696F- 10242 00005CD9 6E205461626C65206F- 10242 00005CE2 6E6C790D0A 10243 00005CE7 20322E205772697465- db " 2. Write Partition Table and Singlix Master Boot Code", 0Dh, 0Ah 10243 00005CF0 20506172746974696F- 10243 00005CF9 6E205461626C652061- 10243 00005D02 6E642053696E676C69- 10243 00005D0B 78204D617374657220- 10243 00005D14 426F6F7420436F6465- 10243 00005D1D 0D0A 10244 enter_opt_num_cancel_msg: 10245 00005D1F 0D0A db 0Dh, 0Ah 10246 00005D21 456E74657220746865- db "Enter the option number or press ESC to cancel ...", 0 10246 00005D2A 206F7074696F6E206E- 10246 00005D33 756D626572206F7220- 10246 00005D3C 707265737320455343- 10246 00005D45 20746F2063616E6365- 10246 00005D4E 6C202E2E2E00 10247 10248 msg_writing_ptable: 10249 00005D54 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10250 00005D58 57726974696E672070- db "Writing partition table on disk ... ", 0 10250 00005D61 6172746974696F6E20- 10250 00005D6A 7461626C65206F6E20- 10250 00005D73 6469736B202E2E2E20- 10250 00005D7C 00 10251 _msg_OK: 10252 ;db 7 10253 00005D7D 0D0A db 0Dh, 0Ah 10254 00005D7F 4F4B2021 db "OK !" 10255 00005D83 0D0A00 db 0Dh, 0Ah, 0 10256 10257 option_input: 10258 00005D86 205B205D00 db ' [ ]', 0 10259 10260 msg_enter_pn_to_act: 10261 00005D8B 0D0A db 0Dh, 0Ah 10262 00005D8D 456E74657220706172- db "Enter partition number to set as active: ", 0 10262 00005D96 746974696F6E206E75- 10262 00005D9F 6D62657220746F2073- 10262 00005DA8 657420617320616374- 10262 00005DB1 6976653A2000 10263 10264 trdos386_disk_chs_header: 10265 00005DB7 0D0A db 0Dh, 0Ah 10266 00005DB9 202020202020202020- db " TRDOS 386 (SINGLIX) HARD DISK IMAGE " 10266 00005DC2 202020202020202020- 10266 00005DCB 2020205452444F5320- 10266 00005DD4 333836202853494E47- 10266 00005DDD 4C4958292048415244- 10266 00005DE6 204449534B20494D41- 10266 00005DEF 474520202020202020- 10266 00005DF8 202020202020202020- 10266 00005E01 2020202020202020 10267 00005E09 00 db 0 10268 10269 disk_chs_header: 10270 00005E0A 0D0A db 0Dh, 0Ah 10271 00005E0C 202020202020202020- db " HARD DISK IMAGE " 10271 00005E15 202020202020202020- 10271 00005E1E 202020202020202020- 10271 00005E27 202020202048415244- 10271 00005E30 204449534B20494D41- 10271 00005E39 474520202020202020- 10271 00005E42 202020202020202020- 10271 00005E4B 202020202020202020- 10271 00005E54 2020202020202020 10272 00005E5C 00 db 0 10273 10274 msg_partition_size_limit: 10275 00005E5D 0D0A db 0Dh, 0Ah 10276 00005E5F 506172746974696F6E- db "Partition size overs available free space !" 10276 00005E68 2073697A65206F7665- 10276 00005E71 727320617661696C61- 10276 00005E7A 626C65206672656520- 10276 00005E83 73706163652021 10277 00005E8A 0D0A db 0Dh, 0Ah 10278 00005E8C 4D61782E2061766169- db "Max. available free space is ", 0 10278 00005E95 6C61626C6520667265- 10278 00005E9E 652073706163652069- 10278 00005EA7 732000 10279 10280 msg_partition_size_limit_r: 10281 00005EAA 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10282 00005EAE 28507265737320454E- db "(Press ENTER to use all of available space or press ESC key to retry..) " 10282 00005EB7 54455220746F207573- 10282 00005EC0 6520616C6C206F6620- 10282 00005EC9 617661696C61626C65- 10282 00005ED2 207370616365206F72- 10282 00005EDB 207072657373204553- 10282 00005EE4 43206B657920746F20- 10282 00005EED 72657472792E2E2920 10283 00005EF6 000A00 db 0D, 0Ah, 0 10284 10285 msg_cylinders: 10286 00005EF9 2063796C696E646572- db " cylinders", 0 10286 00005F02 7300 10287 msg_sectors: 10288 00005F04 20736563746F727300 db " sectors", 0 10289 10290 ; 02/03/2019 10291 msg_megabytes: 10292 00005F0D 206D65676162797465 db " megabyte" 10293 msg_megabytes_s: 10294 00005F16 0000 db 0, 0 10295 10296 msg_inv_pte: 10297 00005F18 0D0A db 0Dh, 0Ah 10298 00005F1A 496E76616C69642070- db "Invalid partition table entry ! (P" 10298 00005F23 6172746974696F6E20- 10298 00005F2C 7461626C6520656E74- 10298 00005F35 72792021202850 10299 00005F3C 3F290D0A inv_pte_num: db "?)", 0Dh, 0Ah 10300 00005F40 28507265737320454E- db "(Press ENTER to DELETE or press ESC to EXIT..)" 10300 00005F49 54455220746F204445- 10300 00005F52 4C455445206F722070- 10300 00005F5B 726573732045534320- 10300 00005F64 746F20455849542E2E- 10300 00005F6D 29 10301 00005F6E 0D0A00 db 0Dh, 0Ah, 0 10302 10303 msg_ext_partition_exists: 10304 00005F71 457874656E64656420- db "Extended partition already exists !" 10304 00005F7A 706172746974696F6E- 10304 00005F83 20616C726561647920- 10304 00005F8C 6578697374732021 10305 00005F94 0D0A00 db 0Dh, 0Ah, 0 10306 10307 msg_defective_pt: 10308 00005F97 0D0A db 0Dh, 0Ah 10309 00005F99 446566656374697665- db "Defective partition table !", 0 10309 00005FA2 20706172746974696F- 10309 00005FAB 6E207461626C652021- 10309 00005FB4 00 10310 10311 ; 27/02/2019 10312 msg_ext_part_del_error: 10313 00005FB5 0D0A db 0Dh, 0Ah 10314 00005FB7 457874656E64656420- db "Extended partition must be deleted after logical drive(s) !" 10314 00005FC0 706172746974696F6E- 10314 00005FC9 206D75737420626520- 10314 00005FD2 64656C657465642061- 10314 00005FDB 66746572206C6F6769- 10314 00005FE4 63616C206472697665- 10314 00005FED 2873292021 10315 00005FF2 0D0A00 db 0Dh, 0Ah, 0 10316 10317 msg_cancel_continue: 10318 00005FF5 285072657373204553- db "(Press ESC to cancel or press another key to continue..)" 10318 00005FFE 4320746F2063616E63- 10318 00006007 656C206F7220707265- 10318 00006010 737320616E6F746865- 10318 00006019 72206B657920746F20- 10318 00006022 636F6E74696E75652E- 10318 0000602B 2E29 10319 0000602D 0D0A00 db 0Dh, 0Ah, 0 10320 10321 msg_delete_ldd: 10322 00006030 0D0A db 0Dh, 0Ah 10323 00006032 0D0A db 0Dh, 0Ah 10324 00006034 44656C657465204C6F- db "Delete Logical (DOS) Drive:" 10324 0000603D 676963616C2028444F- 10324 00006046 53292044726976653A 10325 0000604F 0D0A db 0Dh, 0Ah 10326 00006051 50726573732044454C- db "Press DELETE key to delete logical disk partition " 10326 0000605A 455445206B65792074- 10326 00006063 6F2064656C65746520- 10326 0000606C 6C6F676963616C2064- 10326 00006075 69736B207061727469- 10326 0000607E 74696F6E20 10327 00006083 3F2E lddp_num: db "?." 10328 00006085 0D0A00 db 0Dh, 0Ah, 0 10329 10330 msg_delete_ext_part: 10331 00006088 0D0A db 0Dh, 0Ah 10332 0000608A 0D0A db 0Dh, 0Ah 10333 0000608C 44656C657465204578- db "Delete Extended (DOS) Partition:" 10333 00006095 74656E646564202844- 10333 0000609E 4F5329205061727469- 10333 000060A7 74696F6E3A 10334 000060AC 0D0A db 0Dh, 0Ah 10335 000060AE 507265737320454E54- db "Press ENTER to delete or press ESC to cancel.." 10335 000060B7 455220746F2064656C- 10335 000060C0 657465206F72207072- 10335 000060C9 657373204553432074- 10335 000060D2 6F2063616E63656C2E- 10335 000060DB 2E 10336 000060DC 0D0A00 db 0Dh, 0Ah, 0 10337 10338 str_display_ebr_pt: 10339 000060DF 285072657373205350- db "(Press SPACE to edit EXTENDED Partition Table)", 0Dh, 0Ah, 0 10339 000060E8 41434520746F206564- 10339 000060F1 697420455854454E44- 10339 000060FA 454420506172746974- 10339 00006103 696F6E205461626C65- 10339 0000610C 290D0A00 10340 10341 ebr_editing_options: 10342 00006110 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10343 00006114 457874656E64656420- db "Extended Partition Table Editing Options:" 10343 0000611D 506172746974696F6E- 10343 00006126 205461626C65204564- 10343 0000612F 6974696E67204F7074- 10343 00006138 696F6E733A 10344 0000613D 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 10345 00006141 20202020202020312E- db " 1. Create Logical DOS Drive", 0Dh, 0Ah 10345 0000614A 20437265617465204C- 10345 00006153 6F676963616C20444F- 10345 0000615C 532044726976650D0A 10346 00006165 20202020202020322E- db " 2. Delete Logical (DOS) Drive(s)",0Dh, 0Ah, 0 10346 0000616E 2044656C657465204C- 10346 00006177 6F676963616C202844- 10346 00006180 4F5329204472697665- 10346 00006189 2873290D0A00 10347 10348 msg_delete_ldd_q: 10349 0000618F 0D0A db 0Dh, 0Ah 10350 00006191 5741524E494E47210D- db "WARNING!", 0Dh, 0Ah 10350 0000619A 0A 10351 0000619B 416C6C206F66206461- db "All of data in logical (DOS) drive(s) will be lost !!", 0Dh, 0Ah 10351 000061A4 746120696E206C6F67- 10351 000061AD 6963616C2028444F53- 10351 000061B6 292064726976652873- 10351 000061BF 292077696C6C206265- 10351 000061C8 206C6F73742021210D- 10351 000061D1 0A 10352 000061D2 0D0A db 0Dh, 0Ah 10353 000061D4 446F20796F75207761- db "Do you want to continue ? (Y/N) ", 0 10353 000061DD 6E7420746F20636F6E- 10353 000061E6 74696E7565203F2028- 10353 000061EF 592F4E292000 10354 10355 msg_create_ldd_max_error: 10356 000061F5 0D0A db 0Dh, 0Ah 10357 000061F7 50726F6772616D206C- db "Program limit for logical dos drive count is 4 !" 10357 00006200 696D697420666F7220- 10357 00006209 6C6F676963616C2064- 10357 00006212 6F7320647269766520- 10357 0000621B 636F756E7420697320- 10357 00006224 342021 10358 00006227 0D0A00 db 0Dh, 0Ah, 0 10359 10360 msg_c_ldd_unused_warning: 10361 0000622A 0D0A db 0Dh, 0Ah 10362 0000622C 546865726520697320- db "There is unused extended partition space after logical dos drive " 10362 00006235 756E75736564206578- 10362 0000623E 74656E646564207061- 10362 00006247 72746974696F6E2073- 10362 00006250 706163652061667465- 10362 00006259 72206C6F676963616C- 10362 00006262 20646F732064726976- 10362 0000626B 6520 10363 char_lddn: 10364 0000626D 342021 db "4 !" 10365 00006270 0D0A db 0Dh, 0Ah 10366 00006272 285072657373204553- db "(Press ESC to add unused space or press ENTER to continue.)" 10366 0000627B 4320746F2061646420- 10366 00006284 756E75736564207370- 10366 0000628D 616365206F72207072- 10366 00006296 65737320454E544552- 10366 0000629F 20746F20636F6E7469- 10366 000062A8 6E75652E29 10367 000062AD 0D0A00 db 0Dh, 0Ah, 0 10368 10369 msg_create_ldd_s: 10370 000062B0 53656C65637420616E- db "Select an option to set logical dos drive size: " 10370 000062B9 206F7074696F6E2074- 10370 000062C2 6F20736574206C6F67- 10370 000062CB 6963616C20646F7320- 10370 000062D4 64726976652073697A- 10370 000062DD 653A20 10371 000062E0 0D0A db 0Dh, 0Ah 10372 000062E2 0D0A db 0Dh, 0Ah 10373 000062E4 202043292043796C69- db " C) Cylinder count", 0Dh, 0Ah 10373 000062ED 6E64657220636F756E- 10373 000062F6 740D0A 10374 000062F9 2020252920566F6C75- db " %) Volume percentage (##%)", 0Dh, 0Ah 10374 00006302 6D652070657263656E- 10374 0000630B 746167652028232325- 10374 00006314 290D0A 10375 00006317 20204D29204D656761- db " M) Mega bytes (MB, 2*1024*M sectors)", 0Dh, 0Ah 10375 00006320 20627974657320284D- 10375 00006329 422C20322A31303234- 10375 00006332 2A4D20736563746F72- 10375 0000633B 73290D0A 10376 0000633F 202047292047696761- db " G) Giga bytes (GB, 2*1024*1024*G sectors)", 0Dh, 0Ah 10376 00006348 206279746573202847- 10376 00006351 422C20322A31303234- 10376 0000635A 2A313032342A472073- 10376 00006363 6563746F7273290D0A 10377 0000636C 0D0A db 0Dh, 0Ah 10378 0000636E 507265737320535041- db "Press SPACE to use entire space or press ENTER to set Megabytes .. ", 0 10378 00006377 434520746F20757365- 10378 00006380 20656E746972652073- 10378 00006389 70616365206F722070- 10378 00006392 7265737320454E5445- 10378 0000639B 5220746F2073657420- 10378 000063A4 4D6567616279746573- 10378 000063AD 202E2E2000 10379 10380 msg_c_part_error: 10381 000063B2 0D0A db 0Dh, 0Ah 10382 ;db "No free space for a new primary partition", 0Dh, 0Ah, 0 10383 ; 21/03/2021 10384 000063B4 4E6F20667265652073- db "No free space for a new primary partition !", 0Dh, 0Ah, 0 10384 000063BD 7061636520666F7220- 10384 000063C6 61206E657720707269- 10384 000063CF 6D6172792070617274- 10384 000063D8 6974696F6E20210D0A- 10384 000063E1 00 10385 ; 21/03/2021 10386 ;msg_c_ldd_error: 10387 ; db "and logical dos drives over program limit (4) !", 0Dh, 0Ah, 0 10388 msg_c_ldd_q: 10389 000063E2 0D0A db 0Dh, 0Ah 10390 000063E4 446F20796F75207761- db "Do you want to create logical dos drive in extended dos partition " 10390 000063ED 6E7420746F20637265- 10390 000063F6 617465206C6F676963- 10390 000063FF 616C20646F73206472- 10390 00006408 69766520696E206578- 10390 00006411 74656E64656420646F- 10390 0000641A 732070617274697469- 10390 00006423 6F6E20 10391 00006426 3F2028592F4E2900 db '? (Y/N)', 0 10392 10393 msg_c_ldd_nofspc_error: 10394 0000642E 0D0A db 0Dh, 0Ah 10395 00006430 4E6F20667265652073- db "No free space for a new logical dos drive !", 0Dh, 0Ah, 0 10395 00006439 7061636520666F7220- 10395 00006442 61206E6577206C6F67- 10395 0000644B 6963616C20646F7320- 10395 00006454 647269766520210D0A- 10395 0000645D 00 10396 10397 ; 12/10/2020 10398 msg_drv_not_ready: 10399 0000645E 0D0A db 0Dh, 0Ah 10400 00006460 4469736B2064726976- db "Disk drive not ready or read error ! " 10400 00006469 65206E6F7420726561- 10400 00006472 6479206F7220726561- 10400 0000647B 64206572726F722021- 10400 00006484 20 10401 00006485 0D0A00 db 0Dh, 0Ah, 0 10402 10403 msg_not_any_disks: 10404 00006488 0D0A db 0Dh, 0Ah 10405 0000648A 546865726520697320- db "There is not a hard disk (ready) ! " 10405 00006493 6E6F74206120686172- 10405 0000649C 64206469736B202872- 10405 000064A5 6561647929202120 10406 000064AD 0D0A00 db 0Dh, 0Ah, 0 10407 10408 align 4 10409 10410 msg_sectors_crlf: 10411 000064B0 20736563746F72 db " sector" 10412 msg_sectors_crlf_s: 10413 000064B7 73 db "s" 10414 000064B8 0D0A00 db 0Dh, 0Ah, 0 10415 10416 vname_length: 10417 000064BB 00 db 0 ; 05/01/2018 10418 10419 bs_oem_name: 10420 000064BC 5452444F53322E3000 db 'TRDOS2.0', 0 10421 10422 000064C5 90 align 2 10423 10424 no_name: 10425 000064C6 4E4F204E414D452020- db 'NO NAME ', 0 10425 000064CF 202000 10426 10427 align 2 10428 10429 FDFORMAT_SECBUFFER: 10430 HDFORMAT_SECBUFFER: 10431 000064D2 F6 times 512 db 0F6h 10432 HDFORMAT_FSINFO_BUFF: 10433 000066D2 52526141 dd 41615252h ; FSI_LeadSig 10434 000066D6 00 times 480 db 0 ; FSI_Reserved1 10435 000068B6 72724161 dd 61417272h ; FSI_StrucSig 10436 000068BA FFFFFFFF dd 0FFFFFFFFh ; FSI_Free_Count 10437 000068BE 02000000 dd 000000002h ; FSI_Nxt_Free 10438 000068C2 00 times 12 db 0 ; FSI_Reserved2 10439 000068CE 000055AA dd 0AA550000h ; FSI_TrailSig 10440 10441 ; 29/10/2020 10442 msg_100: 10443 000068D2 31303000 db '100', 0 10444 10445 SizeOfFile equ $-100 10446 10447 ; 03/02/2019 10448 10449 ;============================================================================= 10450 ; uninitialized data 10451 ;============================================================================= 10452 10453 bss_start: 10454 10455 ABSOLUTE bss_start 10456 10457 ; 12/10/2020 10458 000068D6 ?? DrvNum: resb 1 10459 000068D7 ?? hdc: resb 1 10460 ;hs: resw 1 ; (bios/dos virtual) head*sectors ; 16/10/2020 10461 000068D8 ?? rw: resb 1 10462 000068D9 ?? rcnt: resb 1 ; 18/10/2020 10463 total_sectors: 10464 000068DA ???????? disksize: resd 1 10465 000068DE ???????? chs_limit: resd 1 10466 10467 ; 16/10/2020 10468 ;lba_cyls: resd 1 ; cylinder count calculated from LBA sectors 10469 000068E2 ???? lba_chs_remain: resw 1 ; remain sectors after the last cylinder 10470 10471 alignb 2 10472 000068E4 ???? old_sp: resw 1 10473 10474 HDFORMAT_FATBUFFER: 10475 HDFORMAT_EMPTY_BUFF: 10476 000068E6 resb 512 10477 10478 00006AE6 ???????? data_start: resd 1 10479 00006AEA ???????? data_sectors: resd 1 10480 00006AEE ???????? cluster_count: resd 1 10481 00006AF2 ???? root_dir_secs: resw 1 10482 00006AF4 ???? format_percent: resw 1 10483 00006AF6 ?? prev_percent: resb 1 10484 00006AF7 ?? rsvdbyte: resb 1 10485 10486 alignb 4 10487 10488 ; 05/01/2018 10489 00006AF8 fs_volume_name: resb 64 10490 00006B38 ???????? fs_volume_serial: resd 1 10491 00006B3C ???? DAT_FFBit: resw 1 10492 00006B3E ???? DAT_FFSector: resw 1 10493 00006B40 ???? resw 1 ; 19/03/2021 10494 00006B42 ???? DAT_LFBit: resw 1 10495 00006B44 ???? DAT_LFSector: resw 1 10496 00006B46 ???? resw 1 ; 19/03/2021 10497 10498 ;alignb 4 10499 10500 FS_MAT_Buffer: ; TRFS1 Master Allocation Table (05/01/2018) 10501 00006B48 ?????? MAT_Sign: resb 3 ; Offset 0 ; 'MAT' 10502 00006B4B ?? MAT_Version: resb 1 ; 3 ; 0 10503 00006B4C ???????? MAT_VolumeSize: resd 1 ; 4 ; FS1 Volume Size 10504 00006B50 ???????? MAT_BeginSector: resd 1 ; 8 ; FS1 Start Sector 10505 00006B54 ???????? DAT_Address: resd 1 ; 12 ; Offset (=2) 10506 00006B58 ???????? DAT_SectorCount: resd 1 ; 16 10507 00006B5C ???????? MAT_FreeSectors: resd 1 ; 20 10508 00006B60 ???????? MAT_FirstFreeSector: resd 1 ; 24 10509 ;MAT_OS_Reserved: 10510 ; resb 9 10511 ;MAT_Unused: 10512 ; resb 112 10513 FS_DAT_Buffer: ; TRFS1 Disk Allocation Table (05/01/2018) 10514 FS_RDT_Buffer: ; TRFS1 Root Directory Description Table (05/01/2018) 10515 00006B64 resb 512 10516 ;alignb 4 10517 10518 ; (TR-DOS 386 compatible) Hard Disk (image) parameters 10519 10520 ;total_sectors: resd 1 10521 00006D64 ???????? pType: resb 4 10522 00006D68 ???????? file_size: resd 1 10523 00006D6C ???????? pp_StartSector: resd 1 10524 00006D70 ???????? pp_Sectors: resd 1 10525 00006D74 ?? wholedisk: resb 1 10526 00006D75 ?? pp_type: resb 1 ; Primary partition type (for this program) 10527 00006D76 ?? pp_type_user: resb 1 10528 00006D77 ?? chs_focus: resb 1 10529 00006D78 ???????? pSize_temp: resd 1 10530 00006D7C ???????? pSize_multiplier: resd 1 10531 00006D80 ?? pSize_maxdigits: resb 1 10532 00006D81 ?? pSize_digitpos: resb 1 10533 msg_psize_unit: 10534 00006D82 ???? pSize_unit: resw 1 10535 00006D84 ?? resb 1 10536 ; 06/11/2020 10537 ;reserved_bytes: resb 3 ; for 11 bytes of numbers 10538 msg_partition_sectors: 10539 ;resb 8 10540 00006D85 resb 11 ; 06/11/2020 10541 00006D90 ?? resb 1 10542 00006D91 ?? format_q: resb 1 ; 03/02/2018 10543 10544 ;alignb 2 10545 00006D92 ?? pType_pos: resb 1 10546 00006D93 ?? pType_num: resb 1 10547 00006D94 ?? resb 1 10548 ;cylinder_boundary: 10549 00006D95 ?? resb 1 10550 ; 05/11/2020 10551 10552 alignb 2 10553 10554 00006D96 ?? GetChar: resb 1 ; 11/02/2019 10555 00006D97 ?? existingfile: resb 1 ; 12/02/2019 10556 10557 hs: ; 17/10/2020 ; (bios/dos virtual) head*sectors 10558 00006D98 ???? min_sectors: resw 1 ; 08/02/2019 10559 00006D9A ???? pp_StartCylinder: resw 1 10560 00006D9C ???? pp_EndCylinder: resw 1 10561 10562 00006D9E ???????? ppn_Sectors: resd 1 ; 09/02/2019 10563 10564 00006DA2 ???? input_col: resw 1 10565 00006DA4 ?? No: resb 1 10566 00006DA5 ?? Yes: resb 1 10567 10568 ; 26/02/2019 10569 00006DA6 ?? ldrives: resb 1 10570 10571 ;sort_1: resb 1 10572 00006DA7 ?? resb 1 ; 23/10/2020 10573 00006DA8 ???????? sort: resb 4 10574 10575 ;max_sector: resb 8 10576 ebr_buffer: ; 26/02/2019 10577 00006DAC boot_record: resb 512 10578 10579 00006FAC ?? valid_input: resb 1 10580 00006FAD ?? resb 1 10581 10582 ; 26/02/2019 10583 00006FAE ???????? ep_StartSector: resd 1 10584 00006FB2 ???????? ep_EndSector: resd 1 10585 00006FB6 ???????? ep_Size: resd 1 10586 10587 ; 10/02/2019 10588 00006FBA ???????? valid_ppnums: resb 4 10589 10590 00006FBE ???? _i_: resw 1 10591 10592 00006FC0 ???? freespace_count: resw 1 10593 00006FC2 ?? last_found_partition: resb 1 10594 00006FC3 ?? p_type: resb 1 10595 10596 ; 30/10/2020 10597 ;p_sorted: 10598 ; resb 1 10599 ;ep_sorted: 10600 ; resb 1 10601 10602 00006FC4 ?? _e_: resb 1 10603 10604 act_part_num: 10605 cre_part_num: 10606 00006FC5 ?? del_part_num: resb 1 ; 10/02/2019 10607 10608 alignb 2 10609 10610 00006FC6 pte_row: resb 80 10611 10612 00007016 ?? _zero_: resb 1 10613 10614 ;alignb 2 10615 10616 00007017 ?? resb 1 10617 10618 bss_clear_end: ; 15/02/2019 10619 10620 ; PARTITION DATA STRUCTURE 10621 ; 4 partitions 10622 ; 18 byte partition data structure per partition 10623 ; 72 bytes (4*18) 10624 10625 00007018 ?? part_table_boot_ind: resb 1 10626 00007019 ?? part_table_start_head: resb 1 10627 0000701A ?? part_table_start_sector: resb 1 10628 0000701B ???? part_table_start_cyl: resw 1 10629 0000701D ?? part_table_sys_id: resb 1 10630 0000701E ?? part_table_end_head: resb 1 10631 0000701F ?? part_table_end_sector: resb 1 10632 00007020 ???? part_table_end_cyl: resw 1 10633 00007022 ???? part_table_rel_sec_lw: resw 1 10634 00007024 ???? part_table_rel_sec_hw: resw 1 10635 00007026 ???? part_table_num_sec_lw: resw 1 10636 00007028 ???? part_table_num_sec_hw: resw 1 10637 10638 0000702A resb 54 ; 3*18 bytes 10639 10640 00007060 ?? pcount: resb 1 10641 00007061 ?? ppcount: resb 1 10642 00007062 ?? apcount: resb 1 10643 00007063 ?? epnumber: resb 1 10644 10645 ; LOGICAL PARTITION DATA STRUCTURE 10646 ; (for logical partitions in extended partition) 10647 10648 ; 1 extended partition 10649 ; 4 logical drives (18 bytes) 10650 ; 72 bytes (4*18) 10651 10652 00007064 ?? ext_table_boot_ind: resb 1 10653 00007065 ?? ext_table_start_head: resb 1 10654 00007066 ?? ext_table_start_sector: resb 1 10655 00007067 ???? ext_table_start_cyl: resw 1 10656 00007069 ?? ext_table_sys_id: resb 1 10657 0000706A ?? ext_table_end_head: resb 1 10658 0000706B ?? ext_table_end_sector: resb 1 10659 0000706C ???? ext_table_end_cyl: resw 1 10660 0000706E ???? ext_table_rel_sec_lw: resw 1 10661 00007070 ???? ext_table_rel_sec_hw: resw 1 10662 00007072 ???? ext_table_num_sec_lw: resw 1 10663 00007074 ???? ext_table_num_sec_hw: resw 1 10664 10665 00007076 resb 54 ; 3*18 bytes 10666 10667 fspc: ; 5*8 words (for free space calculations) 10668 10669 ; Space 1 - unused cylinders before partition 0 10670 ; Space 2 - unused cylinders between partition 0 & 1 10671 ; Space 3 - unused cylinders between partition 1 & 2 10672 ; Space 4 - unused cylinders between partition 2 & 3 10673 ; Space 5 - unused cylinders after partition 3 10674 10675 000070AC ???? free_space.space: resw 1 10676 000070AE ???? free_space.start: resw 1 10677 000070B0 ???? free_space.end: resw 1 10678 000070B2 ???? free_space.percent_unused: resw 1 10679 000070B4 ???????? free_space.sectors_unused: resd 1 10680 000070B8 ???????? free_space.startsector: resd 1 ; 13/02/2019 10681 ;resw 4*6 10682 000070BC resw 4*8 ; 4*16 bytes ; 13/02/2019 10683 10684 ; 18/02/2019 10685 000070FC ???? c_cylinder: resw 1 10686 000070FE ???? c_fspc_offset: resw 1 10687 00007100 ?? cylinder_boundary: resb 1 10688 ;c_gap: resb 1 10689 00007101 ?? resb 1 10690 10691 ; 27/02/2019 10692 00007102 ldd_start: resd 4 10693 ; 03/03/2019 10694 00007112 ldd_size: resd 4 10695 ; 30/10/2020 10696 00007122 ???????? ep_free_sectors: resd 1 10697 10698 ; 25/02/2019 10699 00007126 ???? pte_address: resw 1 10700 ; 02/03/2019 10701 00007128 ???? lcylinders: resw 1 10702 ; 01/11/2020 10703 0000712A ???? endcyl: resw 1 10704 10705 ;bss_clear_end: ; 18/02/2019 10706 10707 ; 11/10/2020 10708 ;gdp_buffer: resb 30 ; buffer for int 13h, ah = 48h 10709 0000712C gdp_buffer: resb 26 ; buffer for int 13h, ah = 48h 10710 ; 19/03/2021 10711 00007146 ???? tempword: resw 1 10712 10713 bss_end: