1 ; **************************************************************************** 2 ; BOOTFILE.ASM (BOOTFILE.COM) 3 ; TRDOS 386, Singlix FS1 (A1h) File System STARTUP FILE Configuration Code 4 ; (for MSDOS/WINDOWS) 5 ; **************************************************************************** 6 ; Last Update: 28/01/2018 7 ; ---------------------------------------------------------------------------- 8 ; Beginning: 27/01/2018 9 ; ---------------------------------------------------------------------------- 10 ; Assembler: NASM version 2.11 11 ; ---------------------------------------------------------------------------- 12 ; Modified from 'BOOTFILE.ASM' (TRDOS v1.0) source code by Erdogan Tan 13 ; (21/02/2010) 14 ; **************************************************************************** 15 ; nasm bootfile.s -l bootfile.lst -o BOOTFILE.COM 16 17 ; DTA (PSP+80h= Offset 128) 18 DTA_Attrib equ 149 ; PDP+21 19 DTA_Time equ 150 ; PSP+22 20 DTA_Date equ 152 ; PSP 24 21 DTA_FileSize equ 154 ; PSP + 26 22 DTA_FileName equ 158 ; PSP + 30 23 24 ; Masterboot / Partition Table at Beginning+1BEh 25 ptBootable equ 0 26 ptBeginHead equ 1 27 ptBeginSector equ 2 28 ptBeginCylinder equ 3 29 ptFileSystemID equ 4 30 ptEndHead equ 5 31 ptEndSector equ 6 32 ptEndCylinder equ 7 33 ptStartSector equ 8 34 ptSectors equ 12 35 36 ; TR-SINGLIX FS1 BootSector Identification (Data) Block 37 ; Singlix OS project Issue:1, Revision:14 38 ; (07/01/2018) 39 bsFSystemID equ 3 40 bsBytesPerSec equ 6 41 bsMediaAttrib equ 8 42 bsPartitionID equ 9 43 bsFSVersionMaj equ 10 44 bsFSVersionMin equ 11 45 bsBootSector equ 12 46 bsVolumeSize equ 16 47 bsStartupFD equ 20 48 bsMATLocation equ 24 49 bsRootDirD equ 28 50 bsSystemConfFD equ 32 51 bsSwapFD equ 36 52 bsUndeleteDirD equ 40 53 bsDriveNumber equ 44 54 bs_LBA_Ready equ 45 55 bsMagicWord equ 46 56 bs_Disk_SecPerTrack equ 46 57 bs_Disk_Heads equ 47 58 bsOperationSys equ 48 59 bs_terminator equ 64 60 61 ; MAT 62 ; TR-SINGLIX FS1 Master Allocation Table 63 ; Singlix OS project Issue:5, Revision:5 64 ; (07/01/2018) 65 MAT_DAT_Address equ 12 66 MAT_SectorCount equ 16 67 MAT_FreeSectors equ 20 68 MAT_FirstFreeSector equ 24 69 70 ; FDT 71 ; TR-SINGLIX FS1 File Description Table 72 ; Singlix OS project Issue:2, Revision:14 73 ; (07/01/2018) 74 fdtSectorCount equ 16 75 fdtFileSize equ 28 76 fdtLMDate equ 56 77 fdtLMTime equ 60 78 fdtFileName equ 64 79 80 ;----------------------------------------------------------------- 81 ; CODE 82 ;----------------------------------------------------------------- 83 84 [BITS 16] 85 [ORG 100h] 86 00000000 BB[DB1A] mov bx, SizeOfFile+100 87 00000003 83C30F add bx, 15 88 00000006 D1EB shr bx, 1 89 00000008 D1EB shr bx, 1 90 0000000A D1EB shr bx, 1 91 0000000C D1EB shr bx, 1 92 0000000E B44A mov ah, 4Ah ; modify memory allocation 93 ;push cs 94 ;pop es 95 00000010 CD21 int 21h 96 97 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 98 ; see if drive specified 99 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 100 101 00000012 BE8000 mov si, 80h ; PSP command tail 102 00000015 8A0C mov cl, [si] 103 00000017 08C9 or cl, cl 104 00000019 0F84AC01 jz BF_9 ; jump if zero 105 BF_1: 106 0000001D 46 inc si 107 0000001E 8A04 mov al, [si] 108 00000020 3C20 cmp al, ' ' ; is it SPACE ? 109 00000022 7507 jne short BF_2 110 111 00000024 FEC9 dec cl 112 00000026 75F5 jne short BF_1 113 00000028 E99E01 jmp BF_9 114 BF_2: 115 0000002B 3C66 cmp al, 'f' 116 0000002D 7564 jne short BF_3 117 0000002F 46 inc si 118 00000030 8A04 mov al, [si] 119 00000032 3C64 cmp al, 'd' 120 00000034 0F859101 jne BF_9 121 00000038 46 inc si 122 00000039 8A04 mov al, [si] 123 0000003B 3C30 cmp al, '0' 124 0000003D 0F828801 jb BF_9 125 00000041 3C31 cmp al, '1' 126 00000043 0F878201 ja BF_9 127 00000047 A2[7A0E] mov [SINGLIX_FD_Number], al 128 0000004A 88C2 mov dl, al 129 0000004C 80EA30 sub dl, '0' 130 0000004F 8816[9C0B] mov [PhysicalDriveNumber], dl 131 00000053 B408 mov ah, 08h 132 00000055 CD13 int 13h 133 ; ES <> DS 134 00000057 0F822805 jc BF_16 135 0000005B FEC6 inc dh 136 0000005D 8836[9D0B] mov [Physical_Disk_Heads], dh 137 00000061 80E13F and cl, 00111111b 138 00000064 880E[9F0B] mov [Physical_Disk_SecPerTrack], cl 139 ;; 27/01/2018 140 ;;mov byte [Physical_Disk_Heads], 2 141 ;;mov byte [Physical_Disk_SecPerTrack], 18 142 ;mov [LBA_Ready], 0 143 00000068 1E push ds 144 00000069 07 pop es 145 0000006A 8A16[9C0B] mov dl, [PhysicalDriveNumber] 146 0000006E E8EB06 call load_masterboot 147 ;mov si, BSBUFFER 148 00000071 BE[6910] mov si, MasterBootBuff 149 00000074 817C034653 cmp word [si+bsFSystemID], 'FS' 150 00000079 7409 je short loc_check_fd_bs_A1h_sign 151 loc_not_singlix_fs_fd: 152 0000007B BE[C60E] mov si, Msg_Not_Singlix_FS 153 0000007E E86D05 call print_msg 154 00000081 E9E504 jmp BF_13 155 loc_check_fd_bs_A1h_sign: 156 00000084 807C09A1 cmp byte [si+bsPartitionID], 0A1h 157 00000088 75F1 jne short loc_not_singlix_fs_fd 158 0000008A B8[9206] mov ax, write_chs_sector 159 0000008D A3[9A0B] mov [write_sector], ax 160 ;; 28/01/2018 161 ;cmp byte [si+bs_LBA_Ready], 0 162 ;ja BF_6 ; ? 163 ;; Update CHS parameters (according to boot sector) 164 ;mov ax, [si+bs_Disk_SecPerTrack] 165 ;mov [Physical_Disk_SecPerTrack], al 166 ;mov [Physical_Disk_Heads], ah 167 00000090 E9F700 jmp BF_6 168 BF_3: 169 00000093 3C68 cmp al, 'h' 170 00000095 0F853001 jne BF_9 171 00000099 46 inc si 172 0000009A 8A04 mov al, [si] 173 0000009C 3C64 cmp al, 'd' 174 0000009E 0F852701 jne BF_9 175 000000A2 46 inc si 176 000000A3 8A04 mov al, [si] 177 000000A5 3C30 cmp al, '0' 178 000000A7 0F821E01 jb BF_9 179 000000AB 3C33 cmp al, '3' 180 000000AD 0F871801 ja BF_9 181 000000B1 A2[680E] mov [SINGLIX_HD_Number], al 182 000000B4 46 inc si 183 000000B5 8B04 mov ax, [si] 184 000000B7 80FC20 cmp ah, 20h 185 000000BA 0F870B01 ja BF_9 186 000000BE 3C66 cmp al, 'f' 187 000000C0 7410 je short BF_4 188 000000C2 3C73 cmp al, 's' 189 000000C4 740C je short BF_4 190 000000C6 3C31 cmp al, '1' 191 000000C8 0F82FD00 jb BF_9 192 000000CC 3C34 cmp al, '4' 193 000000CE 0F87F700 ja BF_9 194 BF_4: 195 000000D2 A2[690E] mov [SINGLIX_HD_Number+1], al 196 000000D5 8A16[680E] mov dl, [SINGLIX_HD_Number] 197 000000D9 80C250 add dl, 80h-'0' 198 000000DC 8816[9C0B] mov [PhysicalDriveNumber], dl 199 BF_4_check_int13h_extensions: 200 ; 05/01/2010 201 000000E0 B441 mov ah, 41h ; Check INT 13h Extensions Present 202 000000E2 BBAA55 mov bx, 55AAh 203 000000E5 CD13 int 13h 204 000000E7 7214 jc short BF_4_lba_not_ready 205 000000E9 81FB55AA cmp bx, 0AA55h 206 000000ED 750E jne short BF_4_lba_not_ready 207 000000EF 80E101 and cl, 1 ; Fixed disk access subset check 208 000000F2 7409 jz short BF_4_lba_not_ready 209 BF_4_lba_ready: 210 000000F4 B8[6E06] mov ax, write_lba_sector 211 ;mov [LBA_Ready], cl ; 1 212 000000F7 FE06[C70B] inc byte [LBA_Ready] 213 000000FB EB18 jmp short BF_4_set_disk_write_procedure 214 BF_4_lba_not_ready: 215 ;mov [LBA_Ready], cl ; 0 216 000000FD B408 mov ah, 08h 217 ;mov dl, [PhysicalDriveNumber] 218 000000FF CD13 int 13h 219 ; ES <> DS 220 00000101 0F827E04 jc BF_16 221 00000105 FEC6 inc dh 222 00000107 8836[9D0B] mov [Physical_Disk_Heads], dh 223 0000010B 80E13F and cl, 00111111b 224 0000010E 880E[9F0B] mov [Physical_Disk_SecPerTrack], cl 225 00000112 B8[9206] mov ax, write_chs_sector 226 BF_4_set_disk_write_procedure: 227 00000115 A3[9A0B] mov [write_sector], ax 228 BF_4_load_masterboot: 229 00000118 1E push ds 230 00000119 07 pop es 231 0000011A 8A16[9C0B] mov dl, [PhysicalDriveNumber] 232 0000011E E83B06 call load_masterboot 233 00000121 0F825E04 jc BF_16 234 00000125 BE[2712] mov si, PartitionTable 235 00000128 A0[690E] mov al, [SINGLIX_HD_Number+1] 236 0000012B 3C66 cmp al, 'f' 237 0000012D 751F jne short pass_check_first_singlix_partition 238 0000012F 30C0 xor al, al 239 00000131 B90400 mov cx, 4 240 loc_check_fs_f_partition: 241 00000134 FEC0 inc al 242 00000136 807C04A1 cmp byte [si+ptFileSystemID], 0A1h 243 0000013A 750A jne short check_for_first_fs_partition_again 244 loc_fs_partition_found: 245 0000013C A2[CB0F] mov [fsPartitionNumber], al 246 0000013F 0430 add al, '0' 247 00000141 A2[690E] mov [SINGLIX_HD_Number+1],al 248 00000144 EB37 jmp short BF_5 249 check_for_first_fs_partition_again: 250 00000146 83C610 add si, 10h 251 00000149 E2E9 loop loc_check_fs_f_partition 252 0000014B E93504 jmp BF_16 253 pass_check_first_singlix_partition: 254 0000014E 3C73 cmp al, 's' 255 00000150 751B jne short pass_check_second_singlix_partition 256 00000152 30C0 xor al, al 257 00000154 B90400 mov cx, 4 258 loc_check_fs_s_partition: 259 00000157 807C04A1 cmp byte [si+ptFileSystemID], 0A1h 260 0000015B 7508 jne short check_for_second_fs_partition_again 261 0000015D FEC0 inc al 262 0000015F 3C02 cmp al, 2 263 00000161 7502 jne short check_for_second_fs_partition_again 264 00000163 EBD7 jmp short loc_fs_partition_found 265 check_for_second_fs_partition_again: 266 00000165 83C610 add si, 10h 267 00000168 E2ED loop loc_check_fs_s_partition 268 0000016A E91604 jmp BF_16 269 pass_check_second_singlix_partition : 270 0000016D 2C31 sub al, '1' 271 0000016F B410 mov ah, 10h 272 00000171 F6E4 mul ah 273 00000173 01C6 add si, ax 274 00000175 807C04A1 cmp byte [si+ptFileSystemID], 0A1h 275 00000179 0F850604 jne BF_16 276 BF_5: 277 0000017D 8B4408 mov ax, [si+ptStartSector] 278 00000180 8B540A mov dx, [si+ptStartSector+2] 279 00000183 A3[8C0B] mov [fsBootSector], ax 280 00000186 8916[8E0B] mov [fsBootSector+2], dx 281 282 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 283 ; Write message 284 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 285 BF_6: 286 0000018A BE[310E] mov si, Msg_DoYouWantToWrite 287 0000018D E85E04 call print_msg 288 00000190 803E[9C0B]80 cmp byte [PhysicalDriveNumber], 80h 289 00000195 7308 jnb short BF_7 290 00000197 BE[780E] mov si, SINGLIX_FD_Name 291 0000019A E85104 call print_msg 292 0000019D EB06 jmp short BF_7_yn 293 BF_7: 294 0000019F BE[660E] mov si, SINGLIX_HD_Name 295 000001A2 E84904 call print_msg 296 BF_7_yn: 297 000001A5 BE[6D0E] mov si, msg_yes_no 298 000001A8 E84304 call print_msg 299 BF_8: 300 000001AB 31C0 xor ax, ax 301 000001AD CD16 int 16h ; wait for keyboard command 302 000001AF 3C03 cmp al, 'C'-40h 303 000001B1 0F84B403 je BF_13 304 000001B5 3C1B cmp al, 27 305 000001B7 0F84AE03 je BF_13 306 000001BB 24DF and al, 0DFh 307 000001BD 3C59 cmp al, 'Y' ; Yes? 308 000001BF 7411 je short BF_10 ; write 309 000001C1 3C4E cmp al, 'N' ; No? 310 000001C3 0F84B403 je BF_15 ; no write (exit) 311 000001C7 EBE2 jmp short BF_8 312 BF_9: 313 000001C9 BE[0A0C] mov si, SINGLIX_Welcome 314 000001CC E81F04 call print_msg 315 000001CF E99703 jmp BF_13 316 317 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 318 ; get drive parameters 319 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 320 BF_10: 321 000001D2 BE[670F] mov si, msg_YES 322 000001D5 E81604 call print_msg 323 loc_load_fs_boot_sector: 324 000001D8 BE[6910] mov si, BSBUFFER ; 28/01/2018 325 000001DB 803E[9C0B]80 cmp byte [PhysicalDriveNumber], 80h 326 000001E0 7226 jb short loc_check_current_sfdt_adress_fd 327 000001E2 A1[8C0B] mov ax, [fsBootSector] 328 000001E5 8B16[8E0B] mov dx, [fsBootSector+2] 329 ;mov bx, BSBUFFER 330 000001E9 89F3 mov bx, si ; 28/01/2018 331 000001EB E86A04 call disk_read 332 000001EE 0F829103 jc BF_16 333 000001F2 817C034653 cmp word [si+bsFSystemID], 'FS' 334 000001F7 7506 jne short loc_not_singlix_fs_hdp 335 loc_check_hdp_bs_A1h_sign: 336 000001F9 807C09A1 cmp byte [si+bsPartitionID], 0A1h 337 000001FD 7409 je short loc_check_current_sfdt_adress 338 loc_not_singlix_fs_hdp: 339 000001FF BE[C60E] mov si, Msg_Not_Singlix_FS 340 00000202 E8E903 call print_msg 341 00000205 E96103 jmp BF_13 342 loc_check_current_sfdt_adress_fd: 343 ;mov si, BSBUFFER 344 loc_check_current_sfdt_adress: 345 ; 28/01/2018 346 00000208 807C2D00 cmp byte [si+bs_LBA_Ready], 0 347 0000020C 770A ja short pass_update_chs_parameters 348 ; Update CHS parameters (according to boot sector) 349 0000020E 8B442E mov ax, [si+bs_Disk_SecPerTrack] 350 00000211 A2[9F0B] mov [Physical_Disk_SecPerTrack], al 351 00000214 8826[9D0B] mov [Physical_Disk_Heads], ah 352 pass_update_chs_parameters: 353 00000218 8B4414 mov ax, [si+bsStartupFD] 354 0000021B 8B5416 mov dx, [si+bsStartupFD+2] 355 0000021E 09C0 or ax, ax 356 00000220 7548 jnz short loc_startup_file_exists 357 00000222 09D2 or dx, dx 358 00000224 7544 jnz short loc_startup_file_exists 359 BF_11: 360 00000226 BE[330F] mov si, Msg_DosFile_Name 361 00000229 E8C203 call print_msg 362 0000022C E89C04 call rw_char 363 0000022F 7210 jc short pass_write_file_name_chr0 364 00000231 BF[C80B] mov di, StartupFile_Name 365 00000234 803C20 cmp byte [si], 20h 366 00000237 7608 jna short pass_write_file_name_chr0 367 00000239 B94000 mov cx, 64 368 loc_write_file_name_chr0: 369 0000023C AC lodsb 370 0000023D 3C20 cmp al, 20h 371 ;jnb short loc_write_file_name_chr1 372 ; 27/01/2018 373 0000023F 7708 ja short loc_write_file_name_chr1 374 pass_write_file_name_chr0: 375 00000241 C60500 mov byte [di], 0 376 00000244 47 inc di 377 00000245 E2FA loop pass_write_file_name_chr0 378 00000247 EB05 jmp short loc_find_dos_file 379 loc_write_file_name_chr1: 380 00000249 8805 mov [di], al 381 0000024B 47 inc di 382 0000024C E2EE loop loc_write_file_name_chr0 383 loc_find_dos_file: 384 0000024E BE[700F] mov si, SINGLIX_CRLF 385 00000251 E89A03 call print_msg 386 00000254 BA[C80B] mov dx, StartupFile_Name 387 00000257 B92700 mov cx, 27h ; File Attributes 388 0000025A B44E mov ah, 4Eh ; MS Dos Function = Find First File 389 0000025C CD21 int 21h 390 0000025E 7355 jnc short loc_open_dos_file_1 391 00000260 83F802 cmp ax, 2 392 00000263 0F851C03 jne BF_16 393 00000267 E94301 jmp loc_dos_file_notfound 394 loc_startup_file_exists: 395 0000026A A3[900B] mov [StartupFile_FDT], ax 396 0000026D 8916[920B] mov [StartupFile_FDT+2], dx 397 00000271 BE[CC0F] mov si, msg_Startup_File_Exists 398 00000274 E87703 call print_msg 399 loc_startup_file_exist_select_option: 400 00000277 30E4 xor ah, ah 401 00000279 CD16 int 16h 402 0000027B 3C1B cmp al, 1Bh 403 0000027D 0F84E802 je BF_13 404 00000281 3C0D cmp al, 0Dh 405 00000283 750B jne short loc_check_startupfile_delete_decision 406 00000285 E81008 call display_startupfile_info 407 00000288 BE[E60F] mov si, msg_please_select_an_option 408 0000028B E86003 call print_msg 409 0000028E EBE7 jmp short loc_startup_file_exist_select_option 410 loc_check_startupfile_delete_decision: 411 00000290 80FC53 cmp ah, 53h 412 00000293 75E2 jne short loc_startup_file_exist_select_option 413 00000295 BE[6910] mov si, BSBUFFER 414 00000298 E8CF06 call delete_fs_startupfile 415 0000029B 730F jnc short loc_startup_file_deleted_msg 416 0000029D 3C0B cmp al, 0Bh 417 0000029F 0F85E002 jne BF_16 418 000002A3 BE[A90F] mov si, msg_invalid_format 419 000002A6 E84503 call print_msg 420 000002A9 E9BD02 jmp BF_13 421 loc_startup_file_deleted_msg: 422 000002AC BE[E90E] mov si, Msg_startup_file_deleted 423 000002AF E83C03 call print_msg 424 ;jmp short BF_11 425 000002B2 E9B402 jmp BF_13 426 loc_open_dos_file_1: 427 000002B5 BE9E00 mov si, DTA_FileName 428 000002B8 BF[C80B] mov di, StartupFile_Name 429 000002BB B94000 mov cx, 64 430 loc_copy_found_file_name_chr0: 431 000002BE AC lodsb 432 000002BF 3C20 cmp al, 20h 433 000002C1 7708 ja short loc_copy_found_file_name_chr1 434 pass_copy_found_file_name_chr0: 435 000002C3 C60500 mov byte [di], 0 436 000002C6 47 inc di 437 000002C7 E2FA loop pass_copy_found_file_name_chr0 438 000002C9 EB05 jmp short loc_set_startupfile_decriptor_table 439 loc_copy_found_file_name_chr1: 440 000002CB 8805 mov byte [di], al 441 000002CD 47 inc di 442 000002CE E2EE loop loc_copy_found_file_name_chr0 443 loc_set_startupfile_decriptor_table: 444 000002D0 BE9A00 mov si, DTA_FileSize 445 000002D3 8B04 mov ax, [si] 446 000002D5 8B5402 mov dx, [si+2] 447 000002D8 A3[8516] mov [fdt_file_size], ax 448 000002DB 8916[8716] mov [fdt_file_size+2], dx 449 000002DF BE9800 mov si, DTA_Date 450 000002E2 8B04 mov ax, [si] 451 000002E4 50 push ax 452 000002E5 83E01F and ax, 00011111b ; Day Mask 453 000002E8 D40A aam ; Q([AL]/10)->AH 454 ; R([AL]/10)->AL 455 ; [AH]+[AL]= Day as BCD 456 000002EA D0E4 shl ah, 1 457 000002EC D0E4 shl ah, 1 458 000002EE D0E4 shl ah, 1 459 000002F0 D0E4 shl ah, 1 460 000002F2 00C4 add ah, al 461 000002F4 8826[9C16] mov [fdt_make_day], ah 462 000002F8 58 pop ax 463 000002F9 50 push ax 464 000002FA B105 mov cl, 5 465 000002FC D3E8 shr ax, cl ; shift right 5 times 466 000002FE 83E00F and ax, 00001111b ; Month Mask 467 00000301 D0E4 shl ah, 1 468 00000303 D0E4 shl ah, 1 469 00000305 D0E4 shl ah, 1 470 00000307 D0E4 shl ah, 1 471 00000309 D40A aam 472 0000030B 00C4 add ah, al 473 0000030D 8826[9B16] mov [fdt_make_month], ah 474 00000311 58 pop ax 475 00000312 B109 mov cl, 9 476 00000314 D3E8 shr ax, cl 477 ;and ax, 01111111b ; Result = Year - 1980 478 00000316 05BC07 add ax, 1980 479 00000319 31D2 xor dx, dx 480 0000031B B96400 mov cx, 100 481 0000031E F7F1 div cx 482 00000320 D40A aam 483 00000322 B104 mov cl, 4 484 00000324 D2E4 shl ah, cl 485 00000326 00C4 add ah, al 486 00000328 8826[9916] mov [fdt_make_year], ah 487 0000032C 88D0 mov al, dl 488 0000032E D40A aam 489 ;mov cl, 4 490 00000330 D2E4 shl ah, cl 491 00000332 00C4 add ah, al 492 00000334 8826[9A16] mov [fdt_make_year+1], ah 493 00000338 BE9600 mov si, DTA_Time 494 0000033B 8B04 mov ax, [si] 495 0000033D 50 push ax 496 ; 28/01/2018 497 0000033E 83E01F and ax, 000011111b ; Second Mask 498 00000341 D0E0 shl al, 1 499 00000343 D40A aam 500 ;mov cl, 4 501 00000345 D2E4 shl ah, cl 502 00000347 00C4 add ah, al 503 00000349 8826[9F16] mov [fdt_make_second], ah 504 0000034D 58 pop ax 505 0000034E 50 push ax 506 0000034F B105 mov cl, 5 507 00000351 D3E8 shr ax, cl ; shift right 5 times 508 00000353 83E03F and ax, 0000111111b ; Minute Mask 509 00000356 D40A aam 510 00000358 B104 mov cl, 4 511 0000035A D2E4 shl ah, cl 512 0000035C 00C4 add ah, al 513 0000035E 8826[9E16] mov [fdt_make_minute], ah 514 00000362 58 pop ax 515 00000363 B10B mov cl, 11 516 00000365 D3E8 shr ax, cl ; ax = hour 517 00000367 D40A aam 518 00000369 B104 mov cl, 4 519 0000036B D2E4 shl ah, cl 520 0000036D 00C4 add ah, al 521 0000036F 8826[9D16] mov [fdt_make_hour], ah 522 00000373 B402 mov ah, 02h ; Return Current Time 523 00000375 CD1A int 1Ah 524 00000377 86E9 xchg ch, cl 525 00000379 890E[A516] mov [fdt_lm_hour], cx 526 0000037D 86F2 xchg dh, dl 527 0000037F 8916[A716] mov [fdt_lm_second], dx 528 00000383 890E[A516] mov [fdt_lm_hour], cx 529 00000387 8916[A716] mov [fdt_lm_second], dx 530 0000038B B404 mov ah, 04h ; Return Current Date 531 0000038D CD1A int 1Ah 532 0000038F 86E9 xchg ch,cl 533 00000391 890E[A116] mov [fdt_lm_year], cx 534 00000395 86F2 xchg dh,dl 535 00000397 8916[A316] mov [fdt_lm_month], dx 536 loc_open_dos_file_2: 537 0000039B BA[C80B] mov dx, StartupFile_Name 538 0000039E B43D mov ah, 3Dh ; MS Dos Function = Open File 539 000003A0 30C0 xor al, al 540 000003A2 CD21 int 21h 541 000003A4 7310 jnc short loc_save_filehandle 542 000003A6 83F802 cmp ax, 2 543 000003A9 0F85D601 jne BF_16 544 loc_dos_file_notfound: 545 000003AD BE[B30E] mov si, Msg_File_Not_Found 546 000003B0 E83B02 call print_msg 547 000003B3 E9B301 jmp BF_13 548 loc_save_filehandle: 549 000003B6 A3[8A0B] mov [FileHandle], ax 550 loc_display_startup_file_name: 551 000003B9 BE[460F] mov si, Msg_StartupFile_Name 552 000003BC E82F02 call print_msg 553 000003BF B403 mov ah, 03h 554 ;xor bh, bh 555 000003C1 CD10 int 10h 556 ;push dx 557 000003C3 BE[C80B] mov si, StartupFile_Name 558 000003C6 E82502 call print_msg 559 ;pop dx 560 000003C9 B402 mov ah, 02h 561 ;xor bh, bh 562 000003CB CD10 int 10h 563 000003CD E8FB02 call rw_char 564 000003D0 0F829501 jc BF_13 565 000003D4 803C20 cmp byte [si], 20h 566 000003D7 0F868E01 jna BF_13 567 000003DB BF[A916] mov di, fdt_file_name 568 000003DE B94000 mov cx, 64 569 loc_rename_file_name_chr0: 570 000003E1 AC lodsb 571 000003E2 3C20 cmp al, 20h 572 000003E4 7708 ja short loc_rename_file_name_chr1 573 pass_rename_file_name_chr0: 574 000003E6 C60500 mov byte [di], 0 575 000003E9 47 inc di 576 000003EA E2FA loop pass_rename_file_name_chr0 577 000003EC EB05 jmp short loc_get_SFDT_Address 578 loc_rename_file_name_chr1: 579 000003EE 8805 mov [di], al 580 000003F0 47 inc di 581 000003F1 E2EE loop loc_rename_file_name_chr0 582 loc_get_SFDT_Address: 583 000003F3 BE[700F] mov si, SINGLIX_CRLF 584 000003F6 E8F501 call print_msg 585 000003F9 A1[8516] mov ax, [fdt_file_size] 586 000003FC 8B16[8716] mov dx, [fdt_file_size+2] 587 00000400 05FF01 add ax, 511 588 00000403 83D200 adc dx, 0 589 00000406 B90002 mov cx, 512 590 00000409 E84607 call Div32 591 0000040C A3[7916] mov [fdt_scount], ax 592 0000040F 8916[7B16] mov [fdt_scount+2], dx 593 00000413 83C001 add ax, 1 594 00000416 83D200 adc dx, 0 595 00000419 09D2 or dx, dx 596 0000041B 0F856401 jnz BF_16 597 0000041F 89C1 mov cx, ax 598 00000421 BE[6910] mov si, BSBUFFER 599 00000424 E80404 call get_first_free_section 600 00000427 0F825801 jc BF_16 601 0000042B A3[900B] mov [StartupFile_FDT], ax 602 0000042E 8916[920B] mov [StartupFile_FDT+2], dx 603 loc_write_SF: 604 00000432 BE[0E0F] mov si, Msg_writing_sf 605 00000435 E8B601 call print_msg 606 00000438 A1[900B] mov ax, [StartupFile_FDT] 607 0000043B 8B16[920B] mov dx, [StartupFile_FDT+2] 608 ; 28/01/2018 609 0000043F A3[7116] mov [fdt_location], ax 610 00000442 8916[7316] mov [fdt_location+2], dx 611 00000446 0306[8C0B] add ax, [fsBootSector] 612 0000044A 1316[8E0B] adc dx, [fsBootSector+2] 613 0000044E BB[6916] mov bx, FDTBUFFER 614 00000451 FF16[9A0B] call word [write_sector] 615 00000455 0F822A01 jc BF_16 616 00000459 A1[900B] mov ax, [StartupFile_FDT] 617 0000045C 8B16[920B] mov dx, [StartupFile_FDT+2] 618 00000460 BE[6910] mov si, BSBUFFER 619 00000463 894414 mov [si+bsStartupFD], ax 620 00000466 895416 mov [si+bsStartupFD+2], dx 621 00000469 83C001 add ax, 1 622 0000046C 83D200 adc dx, 0 623 0000046F A3[900B] mov [StartupFile_FDT], ax 624 00000472 8916[920B] mov [StartupFile_FDT+2], dx 625 BF_12_rp: 626 00000476 B43F mov ah, 3Fh ; Read File 627 00000478 B90002 mov cx, 512 628 0000047B BA[6918] mov dx, SECBUFFER 629 0000047E 8B1E[8A0B] mov bx, [FileHandle] 630 00000482 CD21 int 21h 631 00000484 7235 jc short BF_12_c 632 00000486 50 push ax 633 00000487 A1[900B] mov ax, [StartupFile_FDT] 634 0000048A 8B16[920B] mov dx, [StartupFile_FDT+2] 635 0000048E 0306[8C0B] add ax, [fsBootSector] 636 00000492 1316[8E0B] adc dx, [fsBootSector+2] 637 00000496 BB[6918] mov bx, SECBUFFER 638 00000499 FF16[9A0B] call word [write_sector] 639 0000049D 58 pop ax 640 0000049E 721B jc short BF_12_c 641 000004A0 3D0002 cmp ax, 512 642 000004A3 7515 jne short BF_12_cmc 643 000004A5 31D2 xor dx, dx 644 000004A7 A1[900B] mov ax, [StartupFile_FDT] 645 000004AA 83C001 add ax, 1 646 000004AD 1316[920B] adc dx, [StartupFile_FDT+2] 647 000004B1 A3[900B] mov [StartupFile_FDT], ax 648 000004B4 8916[920B] mov [StartupFile_FDT+2], dx 649 000004B8 EBBC jmp short BF_12_rp 650 BF_12_cmc: 651 000004BA F5 cmc 652 BF_12_c: 653 000004BB 9C pushf 654 000004BC B43E mov ah, 3Eh ; Close File 655 000004BE 8B1E[8A0B] mov bx, [FileHandle] 656 000004C2 CD21 int 21h 657 000004C4 9D popf 658 000004C5 0F82BA00 jc BF_16 659 ;mov si, BSBUFFER 660 000004C9 8B4414 mov ax, [si+bsStartupFD] 661 000004CC 8B5416 mov dx, [si+bsStartupFD+2] 662 000004CF A3[900B] mov [StartupFile_FDT], ax 663 000004D2 8916[920B] mov [StartupFile_FDT+2], dx 664 000004D6 B306 mov bl, 06h 665 000004D8 E89602 call update_dat 666 000004DB 0F829400 jc BF_14 667 000004DF 8B0E[7916] mov cx, [fdt_scount] 668 BF_12_loop: 669 000004E3 A1[900B] mov ax, [StartupFile_FDT] 670 000004E6 8B16[920B] mov dx, [StartupFile_FDT+2] 671 000004EA 83C001 add ax, 1 672 000004ED 83D200 adc dx, 0 673 000004F0 A3[900B] mov [StartupFile_FDT], ax 674 000004F3 8916[920B] mov [StartupFile_FDT+2], dx 675 000004F7 51 push cx 676 000004F8 B307 mov bl, 07h 677 000004FA E87402 call update_dat 678 000004FD 59 pop cx 679 000004FE 7273 jc short BF_14 680 00000500 E2E1 loop BF_12_loop 681 00000502 803E[A20B]00 cmp byte [DAT_Buffer_Updated], 0 682 00000507 760C jna short BF_12_um 683 00000509 A1[A30B] mov ax, [DAT_Buffer_Sector] 684 0000050C 8B16[A50B] mov dx, [DAT_Buffer_Sector+2] 685 00000510 E8F902 call write_dat_sector 686 00000513 725E jc short BF_14 687 BF_12_um: 688 00000515 BE[6910] mov si, BSBUFFER 689 00000518 B90200 mov cx, 2 ; FDT(DDT) + 1 sector data 690 0000051B E80D03 call get_first_free_section 691 0000051E 7305 jnc short BF_12_wm 692 ; Invalid data => 0FFFFFFFFh sign 693 00000520 31C0 xor ax, ax 694 00000522 48 dec ax 695 00000523 89C2 mov dx, ax 696 BF_12_wm: 697 00000525 8B0E[7916] mov cx, [fdt_scount] 698 00000529 41 inc cx 699 0000052A 290E[7D12] sub [mat_dat_free_s], cx 700 0000052E 831E[7F12]00 sbb word [mat_dat_free_s+2], 0 701 00000533 A3[8112] mov [mat_dat_ffs], ax 702 00000536 8916[8312] mov [mat_dat_ffs+2], dx 703 ;mov bx, MATBUFFER 704 0000053A 89F3 mov bx, si 705 0000053C BE[6910] mov si, BSBUFFER 706 0000053F 8B4418 mov ax, [si+bsMATLocation] 707 00000542 8B541A mov dx, [si+bsMATLocation+2] 708 00000545 0306[8C0B] add ax, [fsBootSector] 709 00000549 1316[8E0B] adc dx, [fsBootSector+2] 710 0000054D FF16[9A0B] call word [write_sector] 711 00000551 7220 jc short BF_14 712 BF_12_bs: 713 00000553 BB[6910] mov bx, BSBUFFER 714 00000556 A1[8C0B] mov ax, [fsBootSector] 715 00000559 8B16[8E0B] mov dx, [fsBootSector+2] 716 0000055D FF16[9A0B] call word [write_sector] 717 00000561 7210 jc short BF_14 718 BF_12: 719 00000563 BE[600F] mov si, Msg_OK 720 00000566 E88500 call print_msg 721 BF_13: 722 00000569 BE[700F] mov si, SINGLIX_CRLF 723 0000056C E87F00 call print_msg 724 0000056F CD20 int 20h 725 00000571 CD19 int 19h 726 BF_14: 727 00000573 BE[730F] mov si, msg_singlix_drv_write_error 728 00000576 E87500 call print_msg 729 00000579 EB0E jmp short BF_17 730 BF_15: 731 0000057B BE[6C0F] mov si, msg_NO 732 0000057E E86D00 call print_msg 733 00000581 EBE6 jmp short BF_13 734 BF_16: 735 00000583 BE[7E0E] mov si, msg_singlix_drv_read_error 736 00000586 E86500 call print_msg 737 BF_17: 738 00000589 31C0 xor ax, ax 739 0000058B CD16 int 16h ; wait for keyboard command 740 0000058D 3C03 cmp al, 'C'-40h 741 0000058F 74D8 je short BF_13 742 00000591 3C1B cmp al, 27 743 00000593 74D4 je short BF_13 744 00000595 24DF and al, 0DFh 745 00000597 3C59 cmp al, 'Y' 746 00000599 7406 je short BF_18 ; Retry 747 0000059B 3C4E cmp al, 'N' 748 0000059D 74CA je short BF_13 ; Exit 749 0000059F EBE8 jmp short BF_17 750 BF_18: 751 000005A1 8A16[9C0B] mov dl, [PhysicalDriveNumber] 752 000005A5 B408 mov ah, 08h 753 000005A7 CD13 int 13h ; return disk parameters 754 000005A9 0E push cs 755 000005AA 07 pop es ; restore es 756 000005AB 72D6 jc short BF_16 757 000005AD 80FB04 cmp bl, 4 ; Drive Type 758 000005B0 72D1 jb short BF_16 759 000005B2 30E4 xor ah, ah 760 000005B4 8A16[9C0B] mov dl, [PhysicalDriveNumber] 761 000005B8 CD13 int 13h 762 000005BA 72C7 jc short BF_16 763 000005BC E919FC jmp loc_load_fs_boot_sector 764 765 ;----------------------------------------------------------------- 766 ; convert binary number to decimar string 767 ;----------------------------------------------------------------- 768 769 bin_to_decimal: 770 ; 6-5-2009 771 ; Erdogan Tan 772 ; INPUT: 773 ; DX:AX = Binary Number 774 ; OUTPUT: 775 ; Decimal chars at DS:SI 776 ; CX, AX, DX, SI, BX, BP will be changed. 777 ; 778 000005BF 55 push bp 779 000005C0 BE[8B1A] mov si, Decimal_Str 780 000005C3 56 push si 781 000005C4 B90900 mov cx, 9 782 loc_reset_str_NumberInput: 783 000005C7 C60430 mov byte [si], '0' 784 000005CA 46 inc si 785 000005CB E2FA loop loc_reset_str_NumberInput 786 000005CD 89E5 mov bp, sp 787 000005CF B10A mov cl, 10 788 loc_rediv_NumberInput: 789 000005D1 E87E05 call Div32 790 000005D4 80C330 add bl,'0' 791 000005D7 53 push bx 792 000005D8 4E dec si 793 000005D9 83F800 cmp ax, 0 794 000005DC 77F3 ja short loc_rediv_NumberInput 795 000005DE 83FA00 cmp dx, 0 796 000005E1 77EE ja short loc_rediv_NumberInput 797 loop_popbx_NumberInput: 798 000005E3 5B pop bx 799 000005E4 881C mov [si], bl 800 000005E6 46 inc si 801 000005E7 39E5 cmp bp, sp 802 000005E9 75F8 jne short loop_popbx_NumberInput 803 000005EB 5E pop si 804 000005EC 5D pop bp 805 000005ED C3 retn 806 807 ;----------------------------------------------------------------- 808 ; print message 809 ;----------------------------------------------------------------- 810 811 print_msg: 812 ; DS:SI -> Message address 813 print_msg_LOOP: 814 000005EE AC lodsb ; Load byte at DS:SI to AL 815 000005EF 20C0 and al, al 816 000005F1 7409 jz short print_msg_OK 817 000005F3 B40E mov AH, 0Eh 818 000005F5 BB0700 mov BX, 07h 819 000005F8 CD10 int 10h ; BIOS Service func ( ah ) = 0Eh 820 ; Write char as TTY 821 ;INPUT: AL-char BH-page BL-color 822 000005FA EBF2 jmp short print_msg_LOOP 823 print_msg_OK: 824 000005FC C3 retn 825 826 ;############################################################################# 827 ;# 828 ;# PROCEDURE CHS_read 829 ;# 830 ;############################################################################# 831 832 CHS_read: 833 ; 27/01/2018 834 ; 31/01/2010 835 ; INPUT -> DX:AX = Logical Block Address 836 ; ES:BX = Destination Buffer 837 ; OUTPUT -> clc or stc 838 000005FD 56 push si 839 000005FE 51 push cx 840 000005FF BF0500 mov di, 5 841 loc_read_disk_chs: 842 00000602 50 push ax ; Linear sector # 843 00000603 52 push dx ; DX_AX = Linear address (sector) 844 00000604 8B0E[9F0B] mov cx, [Physical_Disk_SecPerTrack] 845 00000608 53 push bx 846 00000609 E84605 call Div32 ; Special 32 bit divide !!! 847 ; (To fix large disk problem.) 848 ; by Erdogan Tan 849 ; (October 20th, 1999) 850 0000060C 89D9 mov cx, bx ; Sector (zero based) 851 0000060E 41 inc cx ; To make it 1 based 852 0000060F 51 push cx 853 00000610 8B0E[9D0B] mov cx, [Physical_Disk_Heads] 854 00000614 E83B05 call Div32 ; Convert track to head & cyl 855 00000617 88DE mov dh, bl ; BX = Head (max. FFh) 856 00000619 59 pop cx ; AX=Cyl, DH=Head, CX=Sector 857 0000061A 5B pop bx ; ES:BX = Buffer 858 0000061B 8A16[9C0B] mov dl, [PhysicalDriveNumber] 859 0000061F 88C5 mov ch, al 860 00000621 D0CC ror ah, 1 ; Rotate right 861 00000623 D0CC ror ah, 1 862 00000625 08E1 or cl, ah 863 00000627 B80102 mov ax, 0201h 864 0000062A CD13 int 13h ; BIOS Service func ( ah ) = 2 865 ; Read disk sectors 866 ;INPUT: 867 ; AL-sec num CH-track CL-sec 868 ; DH-head DL-drive ES:BX-buffer 869 ;OUTPUT: 870 ; CF-flag AH-stat AL-sec read 871 ; If CF = 1 then (If AH > 0) 872 0000062C 5A pop dx 873 0000062D 58 pop ax 874 0000062E 7303 jnc short pass_read_disk_chs_error 875 00000630 4F dec di 876 ;jz short pass_read_disk_chs_error 877 ;xor ah, ah 878 ;mov dl, [PhysicalDriveNumber] 879 ;int 13h ; BIOS Service func ( ah ) = 0 880 ; Reset disk system 881 00000631 75CF jnz short loc_read_disk_chs 882 ;jmp short loc_read_disk_chs 883 pass_read_disk_chs_error: 884 00000633 59 pop cx 885 00000634 5E pop si 886 00000635 C3 retn ; db 0C3h 887 888 889 ;############################################################################# 890 ;# 891 ;# PROCEDURE LBA_read 892 ;# 893 ;############################################################################# 894 895 LBA_read: 896 ; 21/02/2010 897 ; 31/01/2010 898 ; INPUT -> DX:AX = LBA address 899 ; INPUT -> ES:BX = Buffer 900 00000636 BF0500 mov di, 5 901 loc_read_disk_lba: 902 ;pusha ; db 60h 903 00000639 60 db 60h 904 ;push 0 ; db 6Ah, 00h 905 0000063A 6A00 db 6Ah, 0 906 ;push 0 ; db 6Ah, 00h 907 0000063C 6A00 db 6Ah, 0 908 0000063E 52 push dx 909 0000063F 50 push ax 910 00000640 06 push es 911 00000641 53 push bx 912 ;push 1 ; db 6Ah, 01h 913 00000642 6A01 db 6Ah, 01h 914 ;push 10h ; db 6Ah, 10h 915 00000644 6A10 db 6Ah, 10h 916 00000646 89E6 mov si, sp 917 ; DS:SI= DAP Location 918 00000648 B442 mov ah, 42h ; Extended Disk Read - LBA Read 919 0000064A 8A16[9C0B] mov dl, [PhysicalDriveNumber] 920 0000064E CD13 int 13h 921 ;popa 922 00000650 61 db 61h 923 ;popa 924 00000651 61 db 61h 925 00000652 7303 jnc short pass_read_disk_lba_error 926 00000654 4F dec di 927 00000655 75E2 jnz short loc_read_disk_lba 928 pass_read_disk_lba_error: 929 00000657 C3 retn 930 931 ;############################################################################# 932 ;# 933 ;# PROCEDURE disk_read 934 ;# 935 ;############################################################################# 936 937 disk_read: 938 ; 31/01/2010 939 ; INPUT -> DX:AX = LBA address 940 ; INPUT -> ES:BX = Buffer 941 00000658 803E[C70B]00 cmp byte [LBA_Ready], 0 942 0000065D 7709 ja short loc_read_lba_sectors 943 loc_read_chs_sectors: 944 0000065F E89BFF call CHS_read 945 00000662 7303 jnc short retn_read_sectors 946 retn_read_sectors_stc: 947 00000664 B81500 mov ax, 15h ; Drv not ready or read error ! 948 retn_read_sectors: 949 00000667 C3 retn 950 loc_read_lba_sectors: 951 00000668 E8CBFF call LBA_read 952 0000066B 72F7 jc short retn_read_sectors_stc 953 0000066D C3 retn 954 955 ;############################################################################# 956 ;# 957 ;# PROCEDURE write_lba_sector 958 ;# 959 ;############################################################################# 960 961 write_lba_sector: 962 ; 31/01/2010 963 loc_write_lba_sectors: 964 0000066E BF0500 mov di, 5 965 loc_0FFh: 966 ;pusha ; db 60h 967 00000671 60 db 60h 968 ;push 0 ; db 6Ah, 00h 969 00000672 6A00 db 6Ah, 0 970 ;push 0 ; db 6Ah, 00h 971 00000674 6A00 db 6Ah, 0 972 00000676 52 push dx 973 00000677 50 push ax 974 00000678 06 push es 975 00000679 53 push bx 976 ;push 1 ; db 6Ah, 01h 977 0000067A 6A01 db 6Ah, 01h 978 ;push 10h ; db 6Ah, 10h 979 0000067C 6A10 db 6Ah, 10h 980 0000067E 8A16[9C0B] mov dl, [PhysicalDriveNumber] 981 00000682 B443 mov ah, 43h 982 00000684 30C0 xor al, al ; Verify off 983 00000686 89E6 mov si, sp 984 00000688 CD13 int 13h 985 ;popa 986 0000068A 61 db 61h 987 ;popa 988 0000068B 61 db 61h 989 0000068C 7303 jnc short loc_12Bh 990 0000068E 4F dec di 991 ;jz short loc_12Bh 992 0000068F 75E0 jnz short loc_0FFh 993 ;xor ah, ah 994 ;mov dl, [PhysicalDriveNumber] 995 ;int 13h 996 ;jmp short loc_0FFh 997 loc_12Bh: 998 00000691 C3 retn ; db 0C3h 999 1000 1001 ;############################################################################# 1002 ;# 1003 ;# PROCEDURE write_chs_sector 1004 ;# 1005 ;############################################################################# 1006 1007 write_chs_sector: 1008 ; 31/01/2010 1009 loc_write_chs_sector: 1010 00000692 56 push si 1011 00000693 51 push cx 1012 loc_09Bh: 1013 00000694 BF0500 mov di, 5 1014 loc_0CAh: 1015 00000697 50 push ax ; Linear sector # 1016 00000698 52 push dx ; DX_AX = Linear address (sectors) 1017 00000699 8B0E[9F0B] mov cx, [Physical_Disk_SecPerTrack] 1018 0000069D 53 push bx 1019 0000069E E8B104 call Div32 ; Special 32 bit divide !!! 1020 ; (To fix large disk problem.) 1021 ; by Erdogan Tan 1022 ; (October 20th, 1999) 1023 000006A1 89D9 mov cx, bx ; Sector (zero based) 1024 000006A3 41 inc cx ; To make it 1 based 1025 000006A4 51 push cx 1026 000006A5 8B0E[9D0B] mov cx, [Physical_Disk_Heads] 1027 000006A9 E8A604 call Div32 ; Convert track to head & cyl 1028 000006AC 88DE mov dh, bl ; BX = Head (max. FFh) 1029 000006AE 59 pop cx ; AX=Cyl, DH=Head, CX=Sector 1030 000006AF 5B pop bx ; ES:BX = Buffer 1031 000006B0 8A16[9C0B] mov dl, [PhysicalDriveNumber] 1032 000006B4 88C5 mov ch, al 1033 000006B6 D0CC ror ah, 1 ; Rotate right 1034 000006B8 D0CC ror ah, 1 1035 000006BA 08E1 or cl, ah 1036 000006BC B80103 mov ax, 0301h 1037 000006BF CD13 int 13h ; BIOS Service func ( ah ) = 3 1038 ; Write disk sectors 1039 ;INPUT: 1040 ; AL-sec num CH-track CL-sec 1041 ; DH-head DL-drive ES:BX-buffer 1042 ;OUTPUT: 1043 ; CF-flag AH-stat AL-sec read 1044 ; If CF = 1 then (If AH > 0) 1045 000006C1 5A pop dx 1046 000006C2 58 pop ax 1047 000006C3 7303 jnc short loc_chs_12Bh 1048 000006C5 4F dec di 1049 ;jz short loc_chs_12Bh 1050 ;xor ah, ah 1051 ;mov dl, [PhysicalDriveNumber] 1052 ;int 13h ; BIOS Service func ( ah ) = 0 1053 ; Reset disk system 1054 000006C6 75CF jnz short loc_0CAh 1055 ;jmp short loc_0CAh 1056 loc_chs_12Bh: 1057 000006C8 59 pop cx 1058 000006C9 5E pop si 1059 000006CA C3 retn ; db 0C3h 1060 1061 ;----------------------------------------------------------------- 1062 ; read character from keyboard and write it to screen 1063 ;----------------------------------------------------------------- 1064 1065 rw_char: 1066 ; OUTPUT -> DS:SI = Entered String (ASCIIZ) 1067 000006CB BE[C80B] mov si, StartupFile_Name 1068 000006CE BB0700 mov bx, 7 1069 000006D1 B403 mov ah, 3 1070 000006D3 CD10 int 10h 1071 000006D5 8916[940B] mov [Cursor_Pos], dx 1072 read_next_char: 1073 000006D9 30E4 xor ah, ah 1074 000006DB CD16 int 16h 1075 000006DD 20C0 and al, al 1076 000006DF 743B jz short loc_arrow 1077 000006E1 3CE0 cmp al, 0E0h 1078 000006E3 7437 je short loc_arrow 1079 000006E5 3C08 cmp al, 08h 1080 000006E7 753F jne short char_return 1081 loc_back: 1082 000006E9 B307 mov bl, 7 1083 000006EB B403 mov ah, 3 1084 000006ED CD10 int 10h 1085 000006EF 3A16[940B] cmp dl, [Cursor_Pos] 1086 000006F3 7708 ja short prev_column 1087 loc_beep: 1088 000006F5 B40E mov ah, 0Eh 1089 000006F7 B007 mov al, 7 1090 000006F9 CD10 int 10h 1091 000006FB EBDC jmp short read_next_char 1092 prev_column: 1093 000006FD FECA dec dl 1094 set_cursor_pos: 1095 000006FF B402 mov ah, 2 1096 00000701 CD10 int 10h 1097 00000703 88D3 mov bl, dl 1098 00000705 2A1E[940B] sub bl, [Cursor_Pos] 1099 00000709 B90100 mov cx, 1 1100 0000070C B409 mov ah, 9 1101 0000070E B020 mov al, 20h 1102 00000710 8800 mov [si+bx], al 1103 loc_write_it: 1104 00000712 B307 mov bl, 7 1105 00000714 CD10 int 10h 1106 00000716 8B16[940B] mov dx, [Cursor_Pos] 1107 0000071A EBBD jmp short read_next_char 1108 loc_arrow: 1109 0000071C 80FC4B cmp ah, 4Bh 1110 0000071F 74C8 je short loc_back 1111 00000721 80FC53 cmp ah, 53h 1112 00000724 74C3 je short loc_back 1113 00000726 EBB1 jmp short read_next_char 1114 char_return: 1115 00000728 B307 mov bl, 7 1116 0000072A B403 mov ah, 3 1117 0000072C CD10 int 10h 1118 0000072E 88D3 mov bl, dl 1119 00000730 2A1E[940B] sub bl, [Cursor_Pos] 1120 00000734 3C20 cmp al, 20h 1121 00000736 721E jb short loc_escape 1122 00000738 80FB3F cmp bl, 63 1123 0000073B 77B8 ja short loc_beep 1124 ;cmp al, 'z' 1125 ;ja short read_next_char 1126 ;cmp al, 'a' 1127 ;jb short pass_capitalize 1128 ;and al, 0DFh 1129 pass_capitalize: 1130 0000073D 30E4 xor ah, ah 1131 0000073F 8900 mov [si+bx], ax 1132 00000741 B40E mov ah, 0Eh 1133 00000743 B307 mov bl, 7 1134 00000745 CD10 int 10h 1135 00000747 EB90 jmp short read_next_char 1136 pass_escape: 1137 00000749 3C0D cmp al, 0Dh 1138 0000074B 758C jne short read_next_char 1139 ;mov bl, 7 1140 0000074D B40E mov ah, 0Eh 1141 0000074F CD10 int 10h 1142 00000751 B00A mov al, 0Ah 1143 00000753 CD10 int 10h 1144 00000755 C3 retn 1145 loc_escape: 1146 00000756 3C1B cmp al, 1Bh 1147 00000758 75EF jne short pass_escape 1148 0000075A F9 stc 1149 0000075B C3 retn 1150 1151 ;----------------------------------------------------------------- 1152 ; read/load masterboopt sector 1153 ;----------------------------------------------------------------- 1154 1155 load_masterboot: 1156 ; input -> dl = drive number 1157 0000075C 30E4 xor ah, ah 1158 0000075E CD13 int 13h 1159 ;jnc short pass_reset_error 1160 00000760 720E jc short ret_from_load_mb ; 23/4/2009 FSFDISK.COM 1161 ;harddisk_error: 1162 ; retn 1163 pass_reset_error: 1164 00000762 BB[6910] mov bx, MasterBootBuff 1165 00000765 B80102 mov ax, 0201h 1166 00000768 B90100 mov cx, 1 1167 0000076B 30F6 xor dh, dh 1168 ;push ds 1169 ;pop es 1170 0000076D CD13 int 13h 1171 ;jc short harddisk_error 1172 ;cmp word [MBIDCode],0AA55h ; 23/4/2009 FSFDISK.COM 1173 ;jne short loc_not_masterboot 1174 0000076F C3 retn 1175 ;loc_not_masterboot: 1176 ; stc 1177 ret_from_load_mb: ; 23/4/2009 FSFDISK.COM 1178 00000770 C3 retn 1179 1180 ;----------------------------------------------------------------- 1181 ; update disk allocation table 1182 ;----------------------------------------------------------------- 1183 1184 update_dat: 1185 ; 28/01/2018 1186 ; 27/01/2018 (bit allocation) 1187 ; 20/02/2010 [DAT_Buffer_Offset] 1188 ; 13/02/2010 1189 ; 1190 ; 02/05/2009 1191 ; DX:AX = Disk Sector (Beginning Sector, with Descriptor) 1192 ; BL = Allocation Type (Identifier) 1193 ; 27/01/2018 1194 ; BL = 90h --> Deallocation 1195 ; BL <> 90h --> Allocation 1196 ; 1197 00000771 881E[A10B] mov [DAT_Identifier], bl 1198 00000775 B90010 mov cx, 8*512 ; 27/01/2018 1199 00000778 E8D703 call Div32 1200 0000077B 3916[A50B] cmp [DAT_Buffer_Sector+2], dx 1201 0000077F 7531 jne short loc_write_prev_DAT_sector 1202 00000781 3906[A30B] cmp [DAT_Buffer_Sector], ax 1203 00000785 752B jne short loc_write_prev_DAT_sector 1204 ;mov byte [DAT_Buffer_Updated], 0 1205 loc_update_dat_buffer_x: 1206 00000787 56 push si 1207 00000788 89DE mov si, bx ; Bit offset (0 to 4095) 1208 0000078A 88D9 mov cl, bl 1209 0000078C 80E107 and cl, 7 1210 0000078F B001 mov al, 1 1211 00000791 D2E0 shl al, cl 1212 00000793 8A1E[A10B] mov bl, [DAT_Identifier] 1213 00000797 C1EE03 shr si, 3 ; convert bit offset to byte offset 1214 0000079A 81C6[6914] add si, DATBUFFER 1215 0000079E 80FB90 cmp bl, 90h ; Deallocation 1216 000007A1 7406 je short loc_update_dat_buffer_y ; deallocation 1217 ; Allocation 1218 000007A3 F6D0 not al ; Allocation bit is 0, others are 1 1219 000007A5 2004 and [si], al 1220 000007A7 EB02 jmp short loc_update_dat_buffer_z 1221 loc_update_dat_buffer_y: ; Deallocation 1222 ; Allocation bit is 1 (free), others are 0 1223 000007A9 0804 or [si], al 1224 loc_update_dat_buffer_z: 1225 000007AB C606[A20B]01 mov byte [DAT_Buffer_Updated], 1 1226 000007B0 5E pop si 1227 return_from_dat_update: 1228 000007B1 C3 retn 1229 loc_write_prev_DAT_sector: 1230 000007B2 891E[A70B] mov [DAT_Buffer_Offset], bx ; Bit offset 1231 000007B6 803E[A20B]00 cmp byte [DAT_Buffer_Updated], 0 1232 000007BB 7618 jna short loc_read_DAT_sector 1233 000007BD 52 push dx 1234 000007BE 50 push ax 1235 000007BF A1[A30B] mov ax, [DAT_Buffer_Sector] 1236 000007C2 8B16[A50B] mov dx, [DAT_Buffer_Sector+2] 1237 000007C6 E84300 call write_dat_sector 1238 000007C9 7308 jnc short loc_read_DAT_sector_pop_ax_dx 1239 000007CB 5A pop dx 1240 000007CC 5A pop dx 1241 000007CD 8A1E[A10B] mov bl, [DAT_Identifier] 1242 000007D1 EBDE jmp short return_from_dat_update 1243 loc_read_DAT_sector_pop_ax_dx: 1244 000007D3 58 pop ax 1245 000007D4 5A pop dx 1246 loc_read_DAT_sector: 1247 000007D5 E80800 call load_dat_sector 1248 000007D8 72D7 jc short return_from_dat_update 1249 000007DA 8B1E[A70B] mov bx, [DAT_Buffer_Offset] ; Bit offset 1250 000007DE EBA7 jmp short loc_update_dat_buffer_x 1251 1252 load_dat_sector: 1253 ; 13/02/2010 1254 ; Input -> ; DX:AX = DAT Sector (Offset) 1255 ; Output -> clc : load error (err code in al) 1256 ; clc -> loading successed 1257 ; DX:AX = DAT Sector (Offset) Address 1258 ; BX = DAT Buffer Address 1259 ; [DAT_Buffer_Sector] is updated 1260 ; 1261 000007E0 52 push dx 1262 000007E1 50 push ax 1263 000007E2 0306[7112] add ax, [mat_begin_sec] 1264 000007E6 1316[7312] adc dx, [mat_begin_sec+2] 1265 000007EA 0306[7512] add ax, [mat_dat_lba] 1266 000007EE 1316[7712] adc dx, [mat_dat_lba+2] 1267 000007F2 BB[6914] mov bx, DATBUFFER 1268 000007F5 E860FE call disk_read 1269 000007F8 7303 jnc short loc_load_DAT_sector_clc 1270 000007FA 5A pop dx 1271 000007FB 5A pop dx 1272 000007FC C3 retn 1273 loc_load_DAT_sector_clc: 1274 000007FD 58 pop ax 1275 000007FE 5A pop dx 1276 000007FF A3[A30B] mov [DAT_Buffer_Sector], ax 1277 00000802 8916[A50B] mov [DAT_Buffer_Sector+2], dx 1278 00000806 C606[A20B]00 mov byte [DAT_Buffer_Updated], 0 1279 0000080B C3 retn 1280 1281 write_dat_sector: 1282 ; 20/02/2010 1283 ; Input -> ; DX:AX = DAT Sector (Offset) 1284 ; Output -> clc : write error (err code in al) 1285 ; clc -> write successed 1286 ; DX:AX = DAT Sector (Offset) Address 1287 ; BX = DAT Buffer Address 1288 ; 1289 0000080C 0306[7112] add ax, [mat_begin_sec] 1290 00000810 1316[7312] adc dx, [mat_begin_sec+2] 1291 00000814 0306[7512] add ax, [mat_dat_lba] 1292 00000818 1316[7712] adc dx, [mat_dat_lba+2] 1293 0000081C BB[6914] mov bx, DATBUFFER 1294 0000081F FF16[9A0B] call word [write_sector] 1295 00000823 7205 jc short loc_write_DAT_sector_stc_retn 1296 loc_write_DAT_sector_clc: 1297 ;mov [DAT_Buffer_Sector], ax 1298 ;mov [DAT_Buffer_Sector+2], dx 1299 00000825 C606[A20B]00 mov byte [DAT_Buffer_Updated], 0 1300 loc_write_DAT_sector_stc_retn: 1301 0000082A C3 retn 1302 1303 ;----------------------------------------------------------------- 1304 ; get first free section 1305 ;----------------------------------------------------------------- 1306 1307 get_first_free_section: 1308 ; 28/01/2018 1309 ; 27/01/2018 1310 ; 13/02/2010, 20/02/2010 1311 ; 31/01/2010, 07/02/2010 1312 ; INPUT -> DS:SI = FS Boot Sector Buffer 1313 ; CX = Sector Count 1314 ; OUTPUT -> DX:AX = First Free Section 1315 ; DS:SI = MAT Sector Buffer 1316 ; 1317 0000082B 890E[A90B] mov [CSectorCount], cx 1318 0000082F C706[AB0B]0000 mov word [CSCounter], 0 1319 00000835 BB[6912] mov bx, MATBUFFER 1320 00000838 813F4D41 cmp word [bx], 'MA' 1321 0000083C 7506 jne short loc_gfss_load_MAT 1322 0000083E 807F0254 cmp byte [bx+2], 'T' 1323 00000842 7421 je short loc_check_MAT_sign_ok 1324 loc_gfss_load_MAT: 1325 00000844 8B4418 mov ax, [si+bsMATLocation] 1326 00000847 8B541A mov dx, [si+bsMATLocation+2] 1327 0000084A 0306[8C0B] add ax, [fsBootSector] 1328 0000084E 1316[8E0B] adc dx, [fsBootSector+2] 1329 00000852 89DE mov si, bx ; MATBUFFER 1330 00000854 E801FE call disk_read 1331 00000857 7248 jc short loc_gffs_stc_retn 1332 loc_check_MAT_sign: 1333 ;mov si, MATBUFFER 1334 00000859 813C4D41 cmp word [si], 'MA' 1335 0000085D 753F jne loc_not_valid_fs_mat 1336 0000085F 807C0254 cmp byte [si+2], 'T' 1337 00000863 7539 jne short loc_not_valid_fs_mat 1338 loc_check_MAT_sign_ok: 1339 00000865 8B4410 mov ax, [si+MAT_SectorCount] 1340 00000868 8B5412 mov dx, [si+MAT_SectorCount+2] 1341 0000086B 83E801 sub ax, 1 1342 0000086E 83DA00 sbb dx, 0 1343 00000871 A3[AD0B] mov [DAT_LastSector], ax 1344 00000874 8916[AF0B] mov [DAT_LastSector+2], dx 1345 00000878 8B4418 mov ax, [si+MAT_FirstFreeSector] 1346 0000087B 8B541A mov dx, [si+MAT_FirstFreeSector+2] 1347 ; 28/01/2018 1348 0000087E B9FFFF mov cx, 0FFFFh 1349 00000881 39C8 cmp ax, cx 1350 00000883 7509 jne short loc_check_MAT_valid_ok 1351 00000885 39CA cmp dx, cx 1352 00000887 7505 jne short loc_check_MAT_valid_ok 1353 00000889 31D2 xor dx, dx 1354 0000088B B80100 mov ax, 1 ; BS+14 1355 loc_check_MAT_valid_ok: 1356 0000088E A3[B50B] mov [Current_FS_Sector], ax 1357 00000891 8916[B70B] mov [Current_FS_Sector+2], dx 1358 00000895 A3[B10B] mov [CFDT_Address], ax 1359 00000898 8916[B30B] mov [CFDT_Address+2], dx 1360 0000089C EB07 jmp short loc_gffs_load_dat_sector 1361 loc_not_valid_fs_mat: 1362 0000089E B80B00 mov ax, 0Bh ; Invalid Format 1363 loc_gffs_stc_retn: 1364 000008A1 31C9 xor cx, cx 1365 000008A3 F9 stc 1366 000008A4 C3 retn 1367 loc_gffs_load_dat_sector: 1368 000008A5 B90010 mov cx, 8*512 ; 27/01/2018 1369 000008A8 E8A702 call Div32 1370 000008AB 89DE mov si, bx ; 27/01/2018 1371 000008AD 3B16[AF0B] cmp dx, [DAT_LastSector+2] 1372 000008B1 0F878600 ja loc_gffs_end_of_DAT_sectors 1373 000008B5 7206 jb short pass_gffs_check_scount_ax 1374 000008B7 3B06[AD0B] cmp ax, [DAT_LastSector] 1375 000008BB 777E ja short loc_gffs_end_of_DAT_sectors 1376 pass_gffs_check_scount_ax: 1377 000008BD E820FF call load_dat_sector 1378 000008C0 72DF jc short loc_gffs_stc_retn 1379 loc_gffs_check_dat_cell_value: 1380 ; 27/01/2018 1381 000008C2 89F3 mov bx, si 1382 000008C4 88D9 mov cl, bl 1383 000008C6 C1EB03 shr bx, 3 ; convert bit offset to byte offset 1384 000008C9 81C3[6914] add bx, DATBUFFER 1385 000008CD 80E107 and cl, 7 1386 000008D0 B001 mov al, 1 1387 000008D2 D2E0 shl al, cl ; bit position in allocation byte 1388 000008D4 8407 test [bx], al ; test allocation bit (1 = free) 1389 000008D6 7546 jnz short loc_gffs_inc_cscounter 1390 000008D8 8B0E[AB0B] mov cx, [CSCounter] 1391 000008DC 3B0E[BD0B] cmp cx, [CSCounter_MAX] 1392 000008E0 7612 jna short pass_gffs_update_cscounter_max 1393 000008E2 890E[BD0B] mov [CSCounter_MAX], cx 1394 000008E6 A1[B10B] mov ax, [CFDT_Address] 1395 000008E9 8B16[B30B] mov dx, [CFDT_Address+2] 1396 000008ED A3[B90B] mov [CFDT_Address_MAX], ax 1397 000008F0 8916[BB0B] mov [CFDT_Address_MAX+2], dx 1398 pass_gffs_update_cscounter_max: 1399 000008F4 C706[AB0B]0000 mov word [CSCounter], 0 1400 000008FA A1[B50B] mov ax, [Current_FS_Sector] 1401 000008FD 8B16[B70B] mov dx, [Current_FS_Sector+2] 1402 00000901 83C001 add ax, 1 1403 00000904 83D200 adc dx, 0 1404 00000907 A3[B10B] mov [CFDT_Address], ax 1405 0000090A 8916[B30B] mov [CFDT_Address+2], dx 1406 loc_gffs_check_cfs: 1407 0000090E A3[B50B] mov [Current_FS_Sector], ax 1408 00000911 8916[B70B] mov [Current_FS_Sector+2], dx 1409 00000915 46 inc si 1410 ; 27/01/2018 1411 00000916 81FE0010 cmp si, 8*512 1412 0000091A 72A6 jb short loc_gffs_check_dat_cell_value 1413 0000091C EB87 jmp short loc_gffs_load_dat_sector 1414 loc_gffs_inc_cscounter: 1415 0000091E FF06[AB0B] inc word [CSCounter] 1416 00000922 8B0E[AB0B] mov cx, [CSCounter] 1417 00000926 3B0E[A90B] cmp cx, [CSectorCount] 1418 0000092A 7333 jnb short loc_gffs_return_ffs 1419 0000092C A1[B50B] mov ax, [Current_FS_Sector] 1420 0000092F 8B16[B70B] mov dx, [Current_FS_Sector+2] 1421 00000933 83C001 add ax, 1 1422 00000936 83D200 adc dx, 0 1423 00000939 EBD3 jmp short loc_gffs_check_cfs 1424 loc_gffs_end_of_DAT_sectors: 1425 0000093B 8B0E[AB0B] mov cx, [CSCounter] 1426 ;cmp cx, [CSectorCount] 1427 ;jnb short loc_gffs_return_ffs 1428 0000093F BE[6912] mov si, MATBUFFER 1429 00000942 390E[BD0B] cmp [CSCounter_MAX], cx 1430 00000946 721A jb short loc_gffs_end_of_DAT_sectors_stc 1431 00000948 8B0E[BD0B] mov cx, [CSCounter_MAX] 1432 0000094C 09C9 or cx, cx 1433 0000094E 7506 jnz short pass_gffs_reset_CFDT_address 1434 00000950 89C8 mov ax, cx 1435 00000952 89CA mov dx, cx 1436 00000954 F9 stc 1437 00000955 C3 retn 1438 pass_gffs_reset_CFDT_address: 1439 00000956 A1[B90B] mov ax, [CFDT_Address_MAX] 1440 00000959 8B16[BB0B] mov dx, [CFDT_Address_MAX+2] 1441 0000095D F9 stc 1442 0000095E C3 retn 1443 loc_gffs_return_ffs: 1444 0000095F BE[6912] mov si, MATBUFFER 1445 loc_gffs_end_of_DAT_sectors_stc: 1446 00000962 A1[B10B] mov ax, [CFDT_Address] 1447 00000965 8B16[B30B] mov dx, [CFDT_Address+2] 1448 00000969 C3 retn 1449 1450 ;----------------------------------------------------------------- 1451 ; delete current startup file 1452 ;----------------------------------------------------------------- 1453 1454 delete_fs_startupfile: 1455 ; 13/02/2010 1456 ; 09/02/2010 1457 ; 07/02/2010 1458 ; INPUT -> DS:SI = FS Boot Sector Buffer 1459 ; OUTPUT -> CLC = No error 1460 0000096A 8B4418 mov ax, [si+bsMATLocation] 1461 0000096D 8B541A mov dx, [si+bsMATLocation+2] 1462 00000970 0306[8C0B] add ax, [fsBootSector] 1463 00000974 1316[8E0B] adc dx, [fsBootSector+2] 1464 00000978 A3[C30B] mov [CSFS_MAT_Address], ax 1465 0000097B 8916[C50B] mov [CSFS_MAT_Address+2], dx 1466 0000097F BB[6912] mov bx, MATBUFFER 1467 00000982 E8D3FC call disk_read 1468 00000985 724D jc short loc_delfs_stc_retn 1469 loc_delsf_check_MAT_sign: 1470 00000987 BE[6912] mov si, MATBUFFER 1471 0000098A 813C4D41 cmp word [si], 'MA' 1472 0000098E 0F850CFF jne loc_not_valid_fs_mat 1473 00000992 807C0254 cmp byte [si+2], 'T' 1474 00000996 0F8504FF jne loc_not_valid_fs_mat 1475 loc_delsf_read_SF_FDT: 1476 0000099A A1[900B] mov ax, [StartupFile_FDT] 1477 0000099D 8B16[920B] mov dx, [StartupFile_FDT+2] 1478 000009A1 0306[8C0B] add ax, [fsBootSector] 1479 000009A5 1316[8E0B] adc dx, [fsBootSector+2] 1480 000009A9 BB[6918] mov bx, SECBUFFER 1481 000009AC E8A9FC call disk_read 1482 000009AF 7223 jc short loc_delfs_stc_retn 1483 loc_check_FDT_sign: 1484 000009B1 BE[6918] mov si, SECBUFFER 1485 000009B4 813C4644 cmp word [si], 'FD' 1486 000009B8 7516 jne short loc_delsf_not_valid_fs_fdt 1487 000009BA 807C0254 cmp byte [si+2], 'T' 1488 000009BE 7510 jne short loc_delsf_not_valid_fs_fdt 1489 000009C0 8B4410 mov ax, [si+fdtSectorCount] 1490 000009C3 8B5412 mov dx, [si+fdtSectorCount+2] 1491 000009C6 83C001 add ax, 1 1492 000009C9 83D200 adc dx, 0 1493 000009CC 09D2 or dx, dx 1494 000009CE 7405 jz short loc_delsf_save_csfs_sectorcount 1495 loc_delsf_not_valid_fs_fdt: 1496 loc_delsf_invalid_format: 1497 000009D0 B80B00 mov ax, 0Bh ; Invalid format 1498 000009D3 F9 stc 1499 loc_delfs_stc_retn: 1500 000009D4 C3 retn 1501 loc_delsf_save_csfs_sectorcount: 1502 000009D5 A3[BF0B] mov [CSFS_SectorCount], ax 1503 000009D8 8916[C10B] mov [CSFS_SectorCount+2], dx 1504 loc_delsf_set_fdt_deleted_sign: 1505 000009DC C6440245 mov byte [si+2], 'E' 1506 000009E0 A1[7112] mov ax, [mat_begin_sec] 1507 000009E3 8B16[7312] mov dx, [mat_begin_sec+2] 1508 000009E7 0306[900B] add ax, [StartupFile_FDT] 1509 000009EB 1316[920B] adc dx, [StartupFile_FDT+2] 1510 000009EF BB[6918] mov bx, SECBUFFER 1511 000009F2 FF16[9A0B] call word [write_sector] 1512 000009F6 72DC jc short loc_delfs_stc_retn 1513 loc_delsf_update_DAT: 1514 000009F8 31C0 xor ax, ax 1515 000009FA 31D2 xor dx, dx 1516 000009FC E8E1FD call load_dat_sector 1517 000009FF 72D3 jc short loc_delfs_stc_retn 1518 1519 00000A01 B390 mov bl, 90h ; Free Sector sign 1520 00000A03 8B0E[BF0B] mov cx, [CSFS_SectorCount] 1521 00000A07 09C9 or cx, cx 1522 00000A09 74C5 jz short loc_delsf_not_valid_fs_fdt 1523 00000A0B A1[900B] mov ax, [StartupFile_FDT] 1524 00000A0E 8B16[920B] mov dx, [StartupFile_FDT+2] 1525 loc_delsf_update_DAT_loop: 1526 00000A12 52 push dx 1527 00000A13 50 push ax 1528 00000A14 51 push cx 1529 00000A15 E859FD call update_dat 1530 00000A18 59 pop cx 1531 00000A19 7304 jnc short loc_delsf_update_DAT_loop_next 1532 00000A1B 5A pop dx ; pushed ax 1533 00000A1C 5A pop dx 1534 00000A1D EBB5 jmp short loc_delfs_stc_retn 1535 loc_delsf_update_DAT_loop_next: 1536 00000A1F 58 pop ax 1537 00000A20 5A pop dx 1538 00000A21 83C001 add ax, 1 1539 00000A24 83D200 adc dx, 0 1540 00000A27 E2E9 loop loc_delsf_update_DAT_loop 1541 1542 00000A29 803E[A20B]00 cmp byte [DAT_Buffer_Updated], 0 1543 00000A2E 760C jna short loc_delfs_update_MAT 1544 1545 00000A30 A1[A30B] mov ax, [DAT_Buffer_Sector] 1546 00000A33 8B16[A50B] mov dx, [DAT_Buffer_Sector+2] 1547 00000A37 E8D2FD call write_dat_sector 1548 00000A3A 7298 jc short loc_delfs_stc_retn 1549 loc_delfs_update_MAT: 1550 00000A3C A1[900B] mov ax, [StartupFile_FDT] 1551 00000A3F 8B16[920B] mov dx, [StartupFile_FDT+2] 1552 00000A43 3B16[8312] cmp dx, [mat_dat_ffs+2] 1553 00000A47 770F ja short pass_delfs_update_MAT_ffs 1554 00000A49 7206 jb short loc_delfs_update_MAT_ffs 1555 00000A4B 3B06[8112] cmp ax, [mat_dat_ffs] 1556 00000A4F 7307 jnb short pass_delfs_update_MAT_ffs 1557 loc_delfs_update_MAT_ffs: 1558 00000A51 A3[8112] mov [mat_dat_ffs], ax 1559 00000A54 8916[8312] mov [mat_dat_ffs+2], dx 1560 pass_delfs_update_MAT_ffs: 1561 00000A58 A1[BF0B] mov ax, [CSFS_SectorCount] 1562 00000A5B 8B16[C10B] mov dx, [CSFS_SectorCount+2] 1563 00000A5F 0106[7D12] add [mat_dat_free_s], ax 1564 00000A63 1116[7F12] adc [mat_dat_free_s+2], dx 1565 1566 00000A67 A1[C30B] mov ax, [CSFS_MAT_Address] 1567 00000A6A 8B16[C50B] mov dx, [CSFS_MAT_Address+2] 1568 00000A6E BB[6912] mov bx, MATBUFFER 1569 00000A71 FF16[9A0B] call word [write_sector] 1570 00000A75 7301 jnc short loc_reset_fsbs_sf_pointers 1571 00000A77 C3 retn 1572 loc_reset_fsbs_sf_pointers: 1573 00000A78 31C0 xor ax, ax 1574 00000A7A 31D2 xor dx, dx 1575 ; 27/01/2018 1576 00000A7C BB[6910] mov bx, BSBUFFER 1577 00000A7F 894714 mov [bx+bsStartupFD], ax 1578 00000A82 895716 mov [bx+bsStartupFD+2], dx 1579 00000A85 A3[900B] mov [StartupFile_FDT], ax 1580 00000A88 8916[920B] mov [StartupFile_FDT+2], dx 1581 00000A8C A1[8C0B] mov ax, [fsBootSector] 1582 00000A8F 8B16[8E0B] mov dx, [fsBootSector+2] 1583 00000A93 FF16[9A0B] call word [write_sector] 1584 00000A97 C3 retn 1585 1586 display_startupfile_info: 1587 ; 01/02/2010 1588 00000A98 E8C400 call clear_screen 1589 00000A9B A1[900B] mov ax, [StartupFile_FDT] 1590 00000A9E 8B16[920B] mov dx, [StartupFile_FDT+2] 1591 00000AA2 0306[8C0B] add ax, [fsBootSector] 1592 00000AA6 1316[8E0B] adc dx, [fsBootSector+2] 1593 00000AAA BB[6918] mov bx, SECBUFFER 1594 00000AAD E8A8FB call disk_read 1595 00000AB0 7301 jnc short loc_pdsf_check_FDT_sign 1596 00000AB2 C3 retn 1597 loc_pdsf_check_FDT_sign: 1598 00000AB3 BE[6918] mov si, SECBUFFER 1599 00000AB6 813C4644 cmp word [si], 'FD' 1600 00000ABA 754A jne short loc_pdsf_not_valid_FDT 1601 00000ABC 83C602 add si, 2 1602 00000ABF 803C54 cmp byte [si], 'T' 1603 00000AC2 7542 jne short loc_pdsf_not_valid_FDT 1604 loc_pdsf_print_fshd_name: 1605 00000AC4 803E[9C0B]80 cmp byte [PhysicalDriveNumber], 80h 1606 00000AC9 7208 jb short loc_pdsf_print_fsfd_name 1607 00000ACB BE[660E] mov si, SINGLIX_HD_Name 1608 00000ACE E81DFB call print_msg 1609 00000AD1 EB06 jmp short loc_pdsf_print_sfn 1610 loc_pdsf_print_fsfd_name: 1611 00000AD3 BE[780E] mov si, SINGLIX_FD_Name 1612 00000AD6 E815FB call print_msg 1613 loc_pdsf_print_sfn: 1614 00000AD9 BE[460F] mov si, Msg_StartupFile_Name 1615 00000ADC E80FFB call print_msg 1616 00000ADF BE[6918] mov si, SECBUFFER 1617 00000AE2 56 push si 1618 00000AE3 83C640 add si, fdtFileName 1619 00000AE6 E805FB call print_msg 1620 00000AE9 5E pop si 1621 00000AEA 83C61C add si, fdtFileSize 1622 00000AED 8B04 mov ax, [si] 1623 00000AEF 8B5402 mov dx, [si+2] 1624 ;mov si, Decimal_Str 1625 00000AF2 E8CAFA call bin_to_decimal 1626 00000AF5 BE[6B1A] mov si, Str_startup_file_size 1627 00000AF8 E8F3FA call print_msg 1628 00000AFB BE[8B1A] mov si, Decimal_Str 1629 loc_pdsf_print_sfs_loop: 1630 00000AFE 803C30 cmp byte [si], '0' 1631 00000B01 7508 jne short loc_pdsf_print_sfs 1632 00000B03 46 inc si 1633 00000B04 EBF8 jmp short loc_pdsf_print_sfs_loop 1634 loc_pdsf_not_valid_FDT: 1635 00000B06 B80B00 mov ax, 0Bh ; Invalid Format 1636 00000B09 F9 stc 1637 00000B0A C3 retn 1638 loc_pdsf_print_sfs: 1639 00000B0B E8E0FA call print_msg 1640 00000B0E BE[841A] mov si, Str_Bytes 1641 00000B11 E8DAFA call print_msg 1642 loc_pdsf_print_sfdatetime: 1643 ; 13/02/2010 1644 00000B14 BE[951A] mov si, Str_startup_file_date_time 1645 00000B17 E8D4FA call print_msg 1646 00000B1A BE[6918] mov si, SECBUFFER 1647 00000B1D 83C638 add si, fdtLMDate 1648 ;mov al, [si] 1649 00000B20 AC lodsb ; 27/01/2018 1650 00000B21 E85000 call bin_to_hex 1651 00000B24 A3[B21A] mov [Sf_Year_Str], ax 1652 ;inc si 1653 ;mov al, [si] 1654 00000B27 AC lodsb 1655 00000B28 E84900 call bin_to_hex 1656 00000B2B A3[B41A] mov [Sf_Year_Str+2], ax 1657 ;inc si 1658 ;mov al, [si] 1659 00000B2E AC lodsb 1660 00000B2F E84200 call bin_to_hex 1661 00000B32 A3[AF1A] mov [Sf_Month_Str], ax 1662 ;inc si 1663 ;mov al, [si] 1664 00000B35 AC lodsb 1665 00000B36 E83B00 call bin_to_hex 1666 00000B39 A3[AC1A] mov [Sf_Day_Str], ax 1667 ;inc si 1668 ;mov al, [si] 1669 00000B3C AC lodsb 1670 00000B3D E83400 call bin_to_hex 1671 00000B40 A3[B81A] mov [Sf_Hour_Str], ax 1672 ;inc si 1673 00000B43 8A04 mov al, [si] 1674 00000B45 E82C00 call bin_to_hex 1675 00000B48 A3[BB1A] mov [Sf_Minute_Str], ax 1676 00000B4B BE[AC1A] mov si, Sf_Date_Time_Str 1677 00000B4E E89DFA call print_msg 1678 00000B51 C3 retn 1679 1680 ;------------------------------------------------------------; 1681 ; RXDOS 32 bit Divide ; 1682 ; (Special version by Erdogan Tan) ; 1683 ;------------------------------------------------------------; 1684 ; ; 1685 ; input -> DX_AX = 32 bit dividend ; 1686 ; input -> CX = 16 bit divisor ; 1687 ; output -> DX_AX = 32 bit quotient ; 1688 ; output -> BX = 16 bit remainder ; 1689 ; ; 1690 ; This procedure divides the requested 32 bit number ; 1691 ; and gives the result in DX, AX and BX (remainder) ; 1692 ; ; 1693 ; Original Procedure by Michael Podanoffsky / Real Time DOS ; 1694 ; Erdogan TAN - 1999 [ RXDOSBIO.ASM ] ; 1695 ;------------------------------------------------------------; 1696 1697 Div32: 1698 00000B52 89D3 mov bx, dx 1699 00000B54 93 xchg ax, bx 1700 00000B55 31D2 xor dx, dx 1701 00000B57 F7F1 div cx ; at first, divide DX 1702 00000B59 93 xchg ax, bx ; remainder is in DX 1703 ; now, BX has quotient 1704 ; save remainder 1705 00000B5A F7F1 div cx ; so, DX_AX divided and 1706 ; AX has quotient 1707 ; DX has remainder 1708 00000B5C 87D3 xchg dx, bx ; finally, BX has remainder 1709 1710 00000B5E C3 retn 1711 1712 clear_screen: ;21/09/2009 1713 00000B5F B80006 mov ax, 0600h 1714 00000B62 B707 mov bh, 7 1715 00000B64 31C9 xor cx, cx 1716 00000B66 BA4F18 mov dx, 184Fh 1717 00000B69 CD10 int 10h 1718 00000B6B B402 mov ah, 2 1719 00000B6D 30FF xor bh, bh 1720 00000B6F 31D2 xor dx, dx 1721 00000B71 CD10 int 10h 1722 1723 ;2004-2005 1724 ;mov ah, 0Fh 1725 ;int 10h 1726 ;mov ah, 0 1727 ;int 10h 1728 1729 00000B73 C3 retn 1730 1731 ;------------------------------------------------------------; 1732 ; From binary (byte) to hexadecimal (character) converter ; 1733 ; ; 1734 ; input -> AL = byte (binary number) to be converted ; 1735 ; output -> AH = First character of hexadecimal number ; 1736 ; output -> AL = Second character of hexadecimal number ; 1737 ;------------------------------------------------------------; 1738 ; Erdogan Tan - 1998, 1999 1739 1740 bin_to_hex: 1741 00000B74 D410 db 0D4h, 10h ; Undocumented inst. AAM 1742 ; AH = AL / 10h 1743 ; AL = AL MOD 10h 1744 00000B76 0D3030 or ax, '00' ; Make it ZERO (ASCII) based 1745 1746 00000B79 86E0 xchg ah, al 1747 ; 1999 1748 00000B7B 3C39 cmp al, '9' 1749 00000B7D 7602 jna short pass_cc_al 1750 00000B7F 0407 add al, 7 1751 pass_cc_al: 1752 00000B81 80FC39 cmp ah, '9' 1753 00000B84 7603 jna short pass_cc_ah 1754 00000B86 80C407 add ah, 7 1755 pass_cc_ah: 1756 ; 1998 1757 00000B89 C3 retn 1758 1759 ;----------------------------------------------------------------- 1760 ; DATA 1761 ;----------------------------------------------------------------- 1762 1763 00000B8A 0000 FileHandle: dw 0 1764 00000B8C 00000000 fsBootSector: dd 0 1765 00000B90 00000000 StartupFile_FDT: dd 0 1766 1767 00000B94 0000 Cursor_Pos: dw 0 1768 00000B96 0000 Cursor_Type: dw 0 1769 1770 00000B98 0000 read_sector: dw 0 1771 00000B9A 0000 write_sector: dw 0 1772 1773 00000B9C 00 PhysicalDriveNumber: db 0 1774 00000B9D 0000 Physical_Disk_Heads: dw 0 1775 00000B9F 0000 Physical_Disk_SecPerTrack: dw 0 1776 1777 ;DAT_Buffer_Drv: db 0 1778 00000BA1 00 DAT_Identifier: db 0 1779 00000BA2 00 DAT_Buffer_Updated: db 0 1780 00000BA3 00000000 DAT_Buffer_Sector: dd 0 1781 00000BA7 0000 DAT_Buffer_Offset: dw 0 1782 1783 00000BA9 0000 CSectorCount: dw 0 1784 00000BAB 0000 CSCounter: dw 0 1785 00000BAD 00000000 DAT_LastSector: dd 0 1786 00000BB1 00000000 CFDT_Address: dd 0 1787 00000BB5 00000000 Current_FS_Sector: dd 0 1788 00000BB9 00000000 CFDT_Address_MAX: dd 0 1789 00000BBD 0000 CSCounter_MAX: dw 0 1790 1791 00000BBF 00000000 CSFS_SectorCount: dd 0 1792 00000BC3 00000000 CSFS_MAT_Address: dd 0 1793 1794 00000BC7 00 LBA_Ready: db 0 1795 1796 00000BC8 00 StartupFile_Name: times 66 db 0 1797 1798 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1799 ; messages 1800 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1801 1802 SINGLIX_Welcome: 1803 00000C0A 0D0A db 0Dh, 0Ah 1804 00000C0C 54522D53494E474C49- db 'TR-SINGLIX FS1 Startup File Configuration Utility' 1804 00000C15 582046533120537461- 1804 00000C1E 727475702046696C65- 1804 00000C27 20436F6E6669677572- 1804 00000C30 6174696F6E20557469- 1804 00000C39 6C697479 1805 00000C3D 0D0A db 0Dh, 0Ah 1806 00000C3F 76322E302E32383031- db 'v2.0.280118 (c) Erdogan TAN 2010-2018' 1806 00000C48 313820202863292045- 1806 00000C51 72646F67616E205441- 1806 00000C5A 4E20323031302D3230- 1806 00000C63 3138 1807 00000C65 0D0A db 0Dh,0Ah 1808 00000C67 0D0A db 0Dh,0Ah 1809 00000C69 55736167653A20626F- db 'Usage: bootfile [Drive] ' 1809 00000C72 6F7466696C65205B44- 1809 00000C7B 726976655D20 1810 00000C81 0D0A db 0Dh,0Ah 1811 00000C83 0D0A db 0Dh,0Ah 1812 00000C85 4472697665206E616D- db "Drive names:" 1812 00000C8E 65733A 1813 00000C91 0D0A db 0Dh,0Ah 1814 00000C93 0D0A db 0Dh,0Ah 1815 00000C95 666430202020202028- db "fd0 (Floppy Disk 1, A:)", 0Dh, 0Ah 1815 00000C9E 466C6F707079204469- 1815 00000CA7 736B20312C20413A29- 1815 00000CB0 0D0A 1816 00000CB2 666431202020202028- db "fd1 (Floppy Disk 2, B:)", 0Dh, 0Ah 1816 00000CBB 466C6F707079204469- 1816 00000CC4 736B20322C20423A29- 1816 00000CCD 0D0A 1817 00000CCF 0D0A db 0Dh, 0Ah 1818 00000CD1 686430312020202028- db "hd01 (Hard Disk 1, partition 1)", 0Dh, 0Ah 1818 00000CDA 48617264204469736B- 1818 00000CE3 20312C207061727469- 1818 00000CEC 74696F6E2031290D0A 1819 00000CF5 686430322020202028- db "hd02 (Hard Disk 1, partition 2)", 0Dh, 0Ah 1819 00000CFE 48617264204469736B- 1819 00000D07 20312C207061727469- 1819 00000D10 74696F6E2032290D0A 1820 00000D19 2E2E2E0D0A db "...", 0Dh, 0Ah 1821 00000D1E 686431312020202028- db "hd11 (Hard Disk 2, partition 1)", 0Dh, 0Ah 1821 00000D27 48617264204469736B- 1821 00000D30 20322C207061727469- 1821 00000D39 74696F6E2031290D0A 1822 00000D42 2E2E2E0D0A db "...", 0Dh, 0Ah 1823 00000D47 686433342020202028- db "hd34 (Hard Disk 4, partition 4)", 0Dh, 0Ah 1823 00000D50 48617264204469736B- 1823 00000D59 20342C207061727469- 1823 00000D62 74696F6E2034290D0A 1824 00000D6B 0D0A db 0Dh, 0Ah 1825 00000D6D 686430662020202028- db "hd0f (Hard Disk 1, the first fs partition)", 0Dh, 0Ah 1825 00000D76 48617264204469736B- 1825 00000D7F 20312C207468652066- 1825 00000D88 697273742066732070- 1825 00000D91 6172746974696F6E29- 1825 00000D9A 0D0A 1826 00000D9C 686430732020202028- db "hd0s (Hard Disk 1, the second fs partition)", 0Dh, 0Ah 1826 00000DA5 48617264204469736B- 1826 00000DAE 20312C207468652073- 1826 00000DB7 65636F6E6420667320- 1826 00000DC0 706172746974696F6E- 1826 00000DC9 290D0A 1827 00000DCC 2E2E2E0D0A db "...", 0Dh, 0Ah 1828 00000DD1 686433662020202028- db "hd3f (Hard Disk 4, the first fs partition)", 0Dh, 0Ah 1828 00000DDA 48617264204469736B- 1828 00000DE3 20342C207468652066- 1828 00000DEC 697273742066732070- 1828 00000DF5 6172746974696F6E29- 1828 00000DFE 0D0A 1829 00000E00 686433732020202028- db "hd3s (Hard Disk 4, the second fs partition)", 0Dh, 0Ah 1829 00000E09 48617264204469736B- 1829 00000E12 20342C207468652073- 1829 00000E1B 65636F6E6420667320- 1829 00000E24 706172746974696F6E- 1829 00000E2D 290D0A 1830 00000E30 00 db 0 1831 1832 Msg_DoYouWantToWrite: 1833 00000E31 07 db 07h 1834 00000E32 0D0A db 0Dh, 0Ah 1835 00000E34 446F20796F75207761- db 'Do you want to write FS1 Startup File onto drive ', 0 1835 00000E3D 6E7420746F20777269- 1835 00000E46 746520465331205374- 1835 00000E4F 61727475702046696C- 1835 00000E58 65206F6E746F206472- 1835 00000E61 6976652000 1836 SINGLIX_HD_Name: 1837 00000E66 6864 db 'hd' 1838 SINGLIX_HD_Number: 1839 00000E68 30303A2000 db '00: ', 0 1840 msg_yes_no: 1841 00000E6D 285965732F4E6F293F- db '(Yes/No)? ', 0 1841 00000E76 2000 1842 1843 SINGLIX_FD_Name: 1844 00000E78 6664 db 'fd' 1845 SINGLIX_FD_Number: 1846 00000E7A 303A2000 db '0: ', 0 1847 1848 msg_singlix_drv_read_error: 1849 00000E7E 0D0A db 0Dh, 0Ah 1850 00000E80 4472697665206E6F74- db 'Drive not ready or read error! Try again? (Y/N) ' 1850 00000E89 207265616479206F72- 1850 00000E92 207265616420657272- 1850 00000E9B 6F7221205472792061- 1850 00000EA4 6761696E3F2028592F- 1850 00000EAD 4E2920 1851 00000EB0 0D0A db 0Dh, 0Ah 1852 00000EB2 00 db 0 1853 1854 Msg_File_Not_Found: 1855 00000EB3 0D0A db 0Dh, 0Ah 1856 00000EB5 46696C65206E6F7420- db "File not found !", 0 1856 00000EBE 666F756E64202100 1857 1858 Msg_Not_Singlix_FS: 1859 00000EC6 0D0A db 0Dh, 0Ah 1860 00000EC8 447269766520686173- db "Drive has not got a SINGLIX FS !", 0 1860 00000ED1 206E6F7420676F7420- 1860 00000EDA 612053494E474C4958- 1860 00000EE3 204653202100 1861 1862 Msg_startup_file_deleted: 1863 00000EE9 0D0A db 0Dh, 0Ah 1864 00000EEB 53494E474C49582046- db "SINGLIX FS startup file deleted...", 0 1864 00000EF4 532073746172747570- 1864 00000EFD 2066696C652064656C- 1864 00000F06 657465642E2E2E00 1865 1866 Msg_writing_sf: 1867 00000F0E 0D0A db 0Dh, 0Ah 1868 00000F10 57726974696E672053- db "Writing SINGLIX FS startup file...",0 1868 00000F19 494E474C4958204653- 1868 00000F22 207374617274757020- 1868 00000F2B 66696C652E2E2E00 1869 1870 Msg_DosFile_Name: 1871 00000F33 0D0A db 0Dh, 0Ah 1872 00000F35 444F532046696C6520- db "DOS File Name : ", 0 1872 00000F3E 4E616D65203A2000 1873 1874 Msg_StartupFile_Name: 1875 00000F46 0D0A db 0Dh, 0Ah 1876 00000F48 537461727475702046- db "Startup File Name : ", 0 1876 00000F51 696C65204E616D6520- 1876 00000F5A 3A2000 1877 1878 00000F5D 2E2E2E Msg_3dot_OK: db "..." 1879 Msg_OK: 1880 00000F60 204F4B2E0D0A00 db ' OK.', 0Dh, 0Ah, 0 1881 1882 00000F67 20594553 msg_YES: db ' YES' 1883 00000F6B 00 db 0 1884 00000F6C 204E4F msg_NO: db ' NO' 1885 00000F6F 00 db 0 1886 1887 SINGLIX_CRLF: 1888 00000F70 0D0A00 db 0Dh, 0Ah, 0 1889 1890 msg_singlix_drv_write_error: 1891 00000F73 0D0A db 0Dh, 0Ah 1892 00000F75 4472697665206E6F74- db 'Drive not ready or write error! Try again? (Y/N) ' 1892 00000F7E 207265616479206F72- 1892 00000F87 207772697465206572- 1892 00000F90 726F72212054727920- 1892 00000F99 616761696E3F202859- 1892 00000FA2 2F4E2920 1893 00000FA6 0D0A db 0Dh, 0Ah 1894 00000FA8 00 db 0 1895 1896 msg_invalid_format: 1897 00000FA9 0D0A db 0Dh, 0Ah 1898 00000FAB 496E76616C69642046- db 'Invalid FS descriptor format !', 0 1898 00000FB4 532064657363726970- 1898 00000FBD 746F7220666F726D61- 1898 00000FC6 74202100 1899 1900 00000FCA 00 Error_Code: db 0 1901 1902 00000FCB 00 fsPartitionNumber: db 0 1903 1904 msg_Startup_File_Exists: 1905 00000FCC 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 1906 00000FD0 537461727475702046- db 'Startup File Exists ! ' 1906 00000FD9 696C65204578697374- 1906 00000FE2 73202120 1907 msg_please_select_an_option: 1908 ;db 'Please select an option: ' 1909 00000FE6 0D0A db 0Dh, 0Ah 1910 00000FE8 0D0A db 0Dh, 0Ah 1911 00000FEA 5072657373203C4445- db 'Press to delete current startup file.' 1911 00000FF3 4C4554453E20746F20- 1911 00000FFC 64656C657465206375- 1911 00001005 7272656E7420737461- 1911 0000100E 727475702066696C65- 1911 00001017 2E 1912 00001018 0D0A db 0Dh, 0Ah 1913 0000101A 5072657373203C454E- db 'Press to see current startup file information.' 1913 00001023 5445523E20746F2073- 1913 0000102C 65652063757272656E- 1913 00001035 742073746172747570- 1913 0000103E 2066696C6520696E66- 1913 00001047 6F726D6174696F6E2E 1914 00001050 0D0A db 0Dh, 0Ah 1915 00001052 5072657373203C4553- db 'Press to exit.' 1915 0000105B 433E20746F20657869- 1915 00001064 742E 1916 00001066 0D0A00 db 0Dh, 0Ah, 0 1917 1918 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1919 ; buffers 1920 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1921 BSBUFFER: 1922 MasterBootBuff: 1923 00001069 00 MasterBootCode: times 1BEh db 0 1924 00001227 00 PartitionTable: times 64 db 0 1925 00001267 0000 MBIDCode: dw 0 1926 1927 MATBUFFER: 1928 00001269 000000 db 0,0,0 ; db 'MAT' 1929 0000126C 00 db 0 1930 0000126D 00000000 mat_volume_size:dd 0 ; Volume Size 1931 00001271 00000000 mat_begin_sec: dd 0 ; Volume Beginning Sector 1932 00001275 00000000 mat_dat_lba: dd 0 ; DAT LBA = 2 1933 00001279 00000000 mat_dat_secs: dd 0 ; DAT Sectors 1934 0000127D 00000000 mat_dat_free_s: dd 0 ; Free Sectors on DAT 1935 00001281 00000000 mat_dat_ffs: dd 0 ; First Free sector 1936 00001285 00 times 484 db 0 1937 DATBUFFER: 1938 00001469 00 times 512 db 0 1939 END_OF_DATBUFFER: 1940 FDTBUFFER: 1941 00001669 464454 db 'FDT'; File Description Table 1942 0000166C 00 db 0 ; FDT Version 1943 0000166D 0002 dw 512 ; Bytes per Sector 1944 0000166F 0000 dw 0 ; FDT Number 1945 00001671 00000000 fdt_location: dd 0 ; The First FDT Address 1946 00001675 00000000 dd 0 ; Next FDT number 1947 00001679 00000000 fdt_scount: dd 0 ; Sector Count 1948 0000167D 00000000 dd 0 ; Directory DT Address 1949 00001681 00000000 dd 0 ; Directory Serial Number 1950 fdt_file_size: 1951 00001685 00000000 dd 0 ; File Size 1952 00001689 0000 dw 0 ; 1953 0000168B 00 db 0 ; Attributes 1954 0000168C 00 db 0 ; Extended Attributes 1955 0000168D 00000000 dd 0 1956 00001691 00000000 dd 0 1957 00001695 00 db 0 ; Filename Type 1958 00001696 00 db 0 ; Longname Length 1959 ; Offset 46 1960 00001697 00 db 0 ; Country 1961 00001698 00 db 0 ; Time Zone (+11) 1962 ; Offset 48 1963 fdt_make_year: 1964 00001699 0000 dw 0 ; Creating Year 1965 fdt_make_month: 1966 0000169B 00 db 0 ; Creating Month 1967 fdt_make_day: 1968 0000169C 00 db 0 ; Creating Day 1969 fdt_make_hour: 1970 0000169D 00 db 0 ; Creating Hour 1971 fdt_make_minute: 1972 0000169E 00 db 0 ; Creating Minute 1973 fdt_make_second: 1974 0000169F 00 db 0 ; Creating Second 1975 fdt_make_dlstm: 1976 000016A0 00 db 0 ; Daylight Saving Time Mode (0= standard time) 1977 ; Offset 56 1978 fdt_lm_year: 1979 000016A1 0000 dw 0 ; Last Mofication Year 1980 fdt_lm_month: 1981 000016A3 00 db 0 ; Last Modification Month 1982 fdt_lm_day: 1983 000016A4 00 db 0 ; Last Modification Day 1984 fdt_lm_hour: 1985 000016A5 00 db 0 ; Last Modification Hour 1986 fdt_lm_minute: 1987 000016A6 00 db 0 ; Last Modification Minute 1988 fdt_lm_second: 1989 000016A7 00 db 0 ; Last Modification Second 1990 fdt_lm_dlstm: 1991 000016A8 00 db 0 ; Daylight Saving Time Mode (0= standard time) 1992 1993 ; Offset 64 1994 fdt_file_name: 1995 000016A9 00 times 64 db 0 1996 ; Offset 128 1997 000016E9 00 times 128 db 0 1998 ; Offset 256 1999 00001769 00 times 256 db 0 2000 2001 ; End Of FDT Buffer 2002 2003 SECBUFFER: 2004 00001869 00 times 512 db 0 2005 2006 00001A69 0000 RetryCount: dw 0 2007 2008 Str_startup_file_size: 2009 00001A6B 0D0A0D0A db 0Dh, 0Ah, 0Dh, 0Ah 2010 00001A6F 537461727475702046- db 'Startup File Size : ', 0 2010 00001A78 696C652053697A6520- 2010 00001A81 3A2000 2011 Str_Bytes: 2012 00001A84 20627974657300 db ' bytes', 0 2013 2014 00001A8B 00 Decimal_Str: times 10 db 0 2015 2016 Str_startup_file_date_time: 2017 00001A95 0D0A db 0Dh, 0Ah 2018 00001A97 4C4D20446174652026- db 'LM Date & Time : ', 0 2018 00001AA0 2054696D6520202020- 2018 00001AA9 3A2000 2019 Sf_Date_Time_Str: 2020 00001AAC 3030 Sf_Day_Str: db '00' 2021 00001AAE 2F db '/' 2022 00001AAF 3030 Sf_Month_Str: db '00' 2023 00001AB1 2F db '/' 2024 00001AB2 30303030 Sf_Year_Str: db '0000' 2025 00001AB6 2020 db 20h, 20h 2026 00001AB8 3030 Sf_Hour_Str: db '00' 2027 00001ABA 3A db ':' 2028 00001ABB 3030 Sf_Minute_Str: db '00' 2029 00001ABD 00 db 0 2030 2031 bootfile_CopyRight: 2032 00001ABE 286329204572646F67- db '(c) Erdogan TAN - 28/01/2018' 2032 00001AC7 616E2054414E202D20- 2032 00001AD0 32382F30312F323031- 2032 00001AD9 38 2033 2034 00001ADA 00 db 0 2035 2036 SizeOfFile equ $-100