wok annotate linld/stuff/src/CRTL.ASM @ rev 20751

Add libsbc
author Pascal Bellard <pascal.bellard@slitaz.org>
date Tue Feb 12 12:12:36 2019 +0100 (2019-02-12)
parents 57d97be431f4
children c89d25976dbe
rev   line source
pascal@19515 1 ;***************************************************************
pascal@19515 2 ;****** This file is distributed under GPL
pascal@19515 3 ;***************************************************************
pascal@19515 4 ideal
pascal@19515 5 %crefref
pascal@19515 6 %noincl
pascal@19515 7 %nomacs
pascal@19636 8 ifdef NO386
pascal@19636 9 p8086
pascal@19636 10 else
pascal@19515 11 p386
pascal@19636 12 endif
pascal@19515 13
pascal@19515 14 group DGROUP _TEXT,_DATA,_BSS
pascal@19515 15 assume cs:DGROUP,ds:DGROUP
pascal@19515 16
pascal@19515 17 segment _DATA byte public use16 'DATA'
pascal@19515 18
pascal@20451 19 global _heap_top
pascal@20451 20 extrn _bss_end
pascal@19546 21 _heap_top dw _bss_end
pascal@19546 22 msg_hang db "High mem corrupted - not exiting to DOS"
pascal@20527 23 msg_lf db 10,0
pascal@20451 24 vcpi_alloc_err db "VCPI "
pascal@20451 25 msg_malloc db "malloc error",0
pascal@19825 26 ifdef EXTRA
pascal@19825 27 tazboot_cmd db "tazboot.cmd",0
pascal@19825 28 endif
pascal@19515 29
pascal@19515 30 ends _DATA
pascal@19515 31
pascal@19515 32 segment _BSS byte public use16 'BSS'
pascal@19515 33
pascal@20538 34 _xfer_buf db 4096 dup (?)
pascal@19515 35 global _no_exit:byte
pascal@19515 36 _no_exit db ?
pascal@19515 37 filecnt db ? ; in fact 0 minus file count...
pascal@19515 38 nextfilename dw ?
pascal@19571 39 ifdef LARGE_IMAGES
pascal@19571 40 curdata dw ?
pascal@19571 41 endif
pascal@19825 42 ifdef EXTRA
pascal@19825 43 ultoabuf db 12 dup (?)
pascal@19825 44 endif
pascal@19515 45
pascal@19515 46 ends _BSS
pascal@19515 47
pascal@19515 48 segment _TEXT byte public use16 'CODE'
pascal@19515 49
pascal@19515 50 ;***************************************************************
pascal@20630 51 ;_fastcall void strcpy(bx:const char* a, ax:const char* b);
pascal@20630 52 ;_fastcall void strcat(bx:const char* a, ax:const char* b);
pascal@20630 53 ;_fastcall void strcatb(bx:const char* a, ax:const char* b);
pascal@19538 54 ;***************************************************************
pascal@20528 55 global @strcatb$qpxzct1:near
pascal@20528 56 proc @strcatb$qpxzct1 near
pascal@19538 57
pascal@19826 58 ifdef EXTRA
pascal@20142 59 mov cl,7Fh
pascal@20539 60 db 0bah ; mov dx,imm opcode
pascal@20528 61 global @strcat$qpxzct1:near
pascal@20528 62 @strcat$qpxzct1:
pascal@20142 63 mov cl,80h
pascal@20539 64 db 0bah ; mov dx,imm opcode
pascal@20528 65 global @strcpy$qpxzct1:near
pascal@20528 66 @strcpy$qpxzct1:
pascal@20142 67 xor cx,cx
pascal@19826 68 endif
pascal@19538 69 push si
pascal@20630 70 xchg ax,bx ; b
pascal@20630 71 xchg ax,si ; a
pascal@19826 72 ifdef EXTRA
pascal@20142 73 jcxz @@nocat
pascal@19826 74 endif
pascal@19538 75 @@catlp:
pascal@20630 76 lodsb ; a=si
pascal@20527 77 or al,al
pascal@19538 78 jne @@catlp
pascal@19538 79 dec si
pascal@19826 80 ifdef EXTRA
pascal@20630 81 cmp bx,si
pascal@20630 82 adc al,cl ; set S when bx != si or cl = 80
pascal@20142 83 mov al,20h
pascal@20142 84 jns @@cpyhead
pascal@19826 85 endif
pascal@19538 86 @@nocat:
pascal@19538 87 @@cpylp:
pascal@20142 88 mov al,[bx]
pascal@20142 89 inc bx
pascal@20142 90 @@cpyhead:
pascal@19538 91 mov [si],al
pascal@19538 92 inc si
pascal@20527 93 or al,al
pascal@19538 94 jne @@cpylp
pascal@20142 95 strfound:
pascal@20142 96 xchg ax,dx
pascal@20142 97 strend:
pascal@19538 98 pop si
pascal@20142 99 ret
pascal@19538 100
pascal@20528 101 endp @strcatb$qpxzct1
pascal@19538 102
pascal@19538 103
pascal@20146 104 ifdef EXTRA
pascal@20146 105 p8086
pascal@20146 106 ;***************************************************************
pascal@20630 107 ;_fastcall char strstr(bx:const char* a, ax:const char* b);
pascal@20146 108 ;***************************************************************
pascal@20528 109 global @strstr$qpxzct1:near
pascal@20528 110 proc @strstr$qpxzct1 near
pascal@20146 111
pascal@20538 112 xchg ax,cx ; b
pascal@20538 113 mov dx,bx ; a
pascal@20146 114 push si
pascal@20146 115 @@loop:
pascal@20146 116 xor ax,ax
pascal@20146 117 mov si,dx
pascal@20146 118 cmp [si],al ; *a
pascal@20146 119 jz strend ; return ax = NULL
pascal@20146 120 mov bx,cx
pascal@20146 121 @@match:
pascal@20146 122 or ah,[bx] ; *b
pascal@20146 123 jz strfound
pascal@20146 124 inc bx
pascal@20146 125 lodsb
pascal@20146 126 sub ah,al
pascal@20146 127 jz @@match
pascal@20146 128 inc dx
pascal@20146 129 jmp @@loop
pascal@20146 130
pascal@20528 131 endp @strstr$qpxzct1
pascal@20146 132
pascal@20146 133
pascal@20146 134 ;***************************************************************
pascal@20630 135 ;_fastcall int strcmp(bx:const char* a, ax:const char* b);
pascal@20146 136 ;***************************************************************
pascal@20528 137 global @strcmp$qpxzct1:near
pascal@20528 138 proc @strcmp$qpxzct1 near
pascal@20146 139
pascal@20146 140 push si
pascal@20146 141 xchg ax,si
pascal@20146 142 dec bx
pascal@20146 143 @@lp:
pascal@20146 144 inc bx
pascal@20146 145 lodsb
pascal@20146 146 sub al,[bx]
pascal@20146 147 jnz @@out
pascal@20630 148 or al,[bx]
pascal@20146 149 jnz @@lp
pascal@20146 150 @@out:
pascal@20146 151 cbw
pascal@20146 152 pop si
pascal@20146 153 ret
pascal@20146 154
pascal@20528 155 endp @strcmp$qpxzct1
pascal@20146 156 endif
pascal@20146 157
pascal@20146 158
pascal@19538 159 ;***************************************************************
pascal@20630 160 ;_fastcall void puts(bx:const char* s):
pascal@19515 161 ;***************************************************************
pascal@20528 162 global @puts$qpxzc:near
pascal@20528 163 proc @puts$qpxzc near
pascal@19515 164
pascal@20486 165 ; global puts:near ; puts(bx)
pascal@19515 166 puts:
pascal@20510 167 call @@putsz
pascal@20527 168 mov bx,offset msg_lf
pascal@20527 169 mov dl,13
pascal@20510 170 @@putcz:
pascal@20160 171 mov ah,2
pascal@20146 172 int 21h
pascal@20510 173 @@putsz:
pascal@20160 174 mov dl,[bx]
pascal@20146 175 inc bx
pascal@20160 176 or dl,dl
pascal@20510 177 jne @@putcz ; ZF=1 (for malloc failure)
pascal@19538 178 ret
pascal@19515 179
pascal@20528 180 endp @puts$qpxzc
pascal@19515 181
pascal@19515 182
pascal@19538 183
pascal@19538 184 ;***************************************************************
pascal@20630 185 ;_fastcall int open(bx:const char* name, int flags=O_RDONLY);
pascal@19515 186 ;***************************************************************
pascal@20538 187 global openargs:near ; openargs(bx)
pascal@20538 188 openargs:
pascal@20538 189 cmp [byte bx],'@'
pascal@20538 190 stc
pascal@20538 191 jne fail
pascal@20538 192 inc bx
pascal@20538 193
pascal@20528 194 global @open$qpxzc:near
pascal@20528 195 proc @open$qpxzc near
pascal@19515 196
pascal@19546 197 global open:near ; open(bx)
pascal@19515 198 open:
pascal@20630 199 ifdef LONG_FILENAME
pascal@20630 200 mov ax,716Ch
pascal@20632 201 push bx di si
pascal@20630 202 mov si,bx
pascal@20630 203 xor bx,bx ; R/O
pascal@20630 204 xor cx,cx ; attributes
pascal@20632 205 xor di,di ; alias hint
pascal@20630 206 cwd ; action = open
pascal@20634 207 stc
pascal@20630 208 int 21h
pascal@20632 209 pop si di bx
pascal@20630 210 jnc doret
pascal@20630 211 endif
pascal@20538 212 mov ax,3d00h ; read-only+compatibility
pascal@20538 213 ;mov cl,0 ; attribute mask
pascal@19515 214 mov dx,bx
pascal@19515 215 dos:
pascal@19515 216 int 21h
pascal@19538 217 chkc:
pascal@19515 218 jnc doret
pascal@19515 219 fail:
pascal@19515 220 sbb ax,ax ; ax=-1 CF
pascal@19515 221 cwd
pascal@19515 222 doret:
pascal@19515 223 ifndef NO386
pascal@19538 224 push dx ; see next_chunk:lseek
pascal@19538 225 push ax
pascal@19538 226 pop eax
pascal@19515 227 endif
pascal@19515 228 ret
pascal@19515 229
pascal@20528 230 endp @open$qpxzc
pascal@19515 231
pascal@19515 232
pascal@19515 233 ;***************************************************************
pascal@20632 234 ;_fastcall int fileexist(bx:const char* name);
pascal@20632 235 ;***************************************************************
pascal@20632 236 global @fileexist$qpxzc:near
pascal@20632 237 @fileexist$qpxzc:
pascal@20632 238 call @open$qpxzc
pascal@20632 239 jc fail
pascal@20632 240
pascal@20632 241 ;***************************************************************
pascal@20630 242 ;_fastcall int close(ax:int fd);
pascal@19515 243 ;***************************************************************
pascal@20528 244 global @close$qi:near
pascal@20528 245 proc @close$qi near
pascal@19515 246
pascal@20540 247 global close:near ; close(ax)
pascal@19515 248 close:
pascal@20540 249 xchg ax,bx
pascal@19515 250 mov ah,3Eh
pascal@19515 251 or bx,bx
pascal@19515 252 jnz dos
pascal@19515 253 ret
pascal@19515 254
pascal@20528 255 endp @close$qi
pascal@19515 256
pascal@19515 257
pascal@19515 258 ;***************************************************************
pascal@20751 259 ;_fastcall int readrm(bx:struct himem *m, ax:int sz);
pascal@20630 260 ;_fastcall int read(ax:int fd, bx:void* data, dx:int sz);
pascal@20630 261 ;_fastcall int write(ax:int fd, bx:const void* data, dx:int sz);
pascal@19515 262 ;***************************************************************
pascal@20751 263 global @readrm$qp11image_himemi:near
pascal@20751 264 @readrm$qp11image_himemi:
pascal@20751 265 xchg ax,dx ; sz
pascal@20751 266 mov ax,[bx] ; fd
pascal@20751 267 mov bx,[bx-2] ; data
pascal@20528 268 global @read$qipvi:near
pascal@20528 269 proc @read$qipvi near
pascal@19515 270
pascal@20146 271 ifdef WRITE
pascal@19580 272 stc
pascal@19634 273 db 0B0h ; mov al,im
pascal@20528 274 global @write$qipvi:near
pascal@20528 275 @write$qipvi:
pascal@19580 276 clc
pascal@20146 277 endif
pascal@20632 278 @read$dxbxax:
pascal@20538 279 xchg ax,bx ; fd
pascal@20538 280 xchg ax,dx ; data
pascal@20538 281 xchg ax,cx ; sz
pascal@20146 282 ifdef WRITE
pascal@19580 283 mov ah,40h
pascal@19580 284 sbb ah,0
pascal@20146 285 else
pascal@20528 286 global @read$cxdxbx:near
pascal@20528 287 @read$cxdxbx:
pascal@20146 288 mov ah,3Fh
pascal@20146 289 endif
pascal@19515 290 jcxz fail
pascal@19515 291 jmp dos
pascal@19515 292
pascal@20528 293 endp @read$qipvi
pascal@19515 294
pascal@19515 295 ;***************************************************************
pascal@20630 296 ;_fastcall long lseekcur(ax:int fd, dx:int whence);
pascal@19515 297 ;***************************************************************
pascal@19899 298
pascal@20548 299 global @lseekcur$qii:near ; fd=ax whence=dx
pascal@20542 300 proc @lseekcur$qii near
pascal@20542 301
pascal@20632 302 mov cl,1
pascal@20542 303 xchg ax,bx
pascal@20542 304 xchg ax,dx
pascal@20542 305 cwd
pascal@20542 306 xchg ax,dx
pascal@20542 307 xchg ax,cx
pascal@20542 308 jmp lseek
pascal@20542 309 rewind: ; rewind(ax)
pascal@20542 310 mov bl,0
pascal@20632 311 lseek0: ; lseek0(ax,bl=dir)
pascal@20542 312 xor dx,dx
pascal@19571 313 xor cx,cx
pascal@20632 314 lseekset:
pascal@20542 315 xchg ax,bx
pascal@20542 316 lseek:
pascal@20548 317 mov ah,42h ; bx=fd cx:dx=offset al=whence
pascal@19515 318 jmp dos
pascal@19515 319
pascal@20542 320 endp @lseekcur$qii
pascal@19825 321
pascal@20538 322 ifdef EXTRA
pascal@20538 323
pascal@20534 324 ;typedef unsigned dirsizetype;
pascal@20534 325 struc isostate ; struct isostate {
pascal@20534 326 fd dw ? ; 0 int fd;
pascal@20534 327 filemod dw ? ; 2 unsigned short filemod;
pascal@20534 328 fileofs dd ? ; 4 unsigned long fileofs;
pascal@20534 329 filesize dd ? ; 8 unsigned long filesize;
pascal@20534 330 filename dw ? ;12 char *filename;
pascal@20534 331 curdirsize dw ? ;14 dirsizetype curdirsize;
pascal@20534 332 dirsize dw ? ;16 dirsizetype dirsize;
pascal@20534 333 curdirofs dd ? ;18 unsigned long curdirofs;
pascal@20534 334 dirofs dd ? ;22 unsigned long dirofs;
pascal@20534 335 curpos dw ? ;26 unsigned curpos;
pascal@20534 336 buffer db 2560 dup(?) ;28 char buffer[2048+512];
pascal@20534 337 ends ; } isostate;
pascal@19825 338 ;***************************************************************
pascal@20630 339 ;_fastcall long isolseek(bx:const unsigned long *offset);
pascal@20632 340 ;_fastcall long lseekset2(ax:int fd, bx:unsigned long* whence);
pascal@19825 341 ;***************************************************************
pascal@20528 342 global @isolseek$qpxul:near
pascal@20528 343 proc @isolseek$qpxul near
pascal@19825 344
pascal@20534 345 isolseek:
pascal@20632 346 extrn _isostate:isostate
pascal@20632 347 mov ax,[_isostate.fd]
pascal@20634 348 global @lseekset2$qipul:near
pascal@20632 349 @lseekset2$qipul:
pascal@19825 350 mov dx,[bx]
pascal@19825 351 mov cx,[bx+2]
pascal@20632 352 mov bl,0
pascal@20538 353 jmp lseekset
pascal@20534 354
pascal@20538 355 endp @isolseek$qpxul
pascal@20534 356
pascal@20534 357 ;***************************************************************
pascal@20630 358 ;_fastcall int isoreadsector(bx:const unsigned long *offset);
pascal@20534 359 ;***************************************************************
pascal@20534 360 global @isoreadsector$qpxul:near
pascal@20534 361 proc @isoreadsector$qpxul near
pascal@20534 362
pascal@20534 363 call isolseek
pascal@20632 364 jc doret
pascal@20632 365 mov dx,2560
pascal@20632 366 mov bx,offset _isostate.buffer
pascal@20632 367 mov ax,[_isostate.fd]
pascal@20632 368 jmp @read$dxbxax ; read(fd,buffer,2560)
pascal@20534 369
pascal@20534 370 endp @isoreadsector$qpxul
pascal@20534 371
pascal@19825 372 endif
pascal@19515 373
pascal@19515 374
pascal@20751 375 ifdef USE_ARGSTR
pascal@20751 376 ;***************************************************************
pascal@20751 377 ;_fastcall int argstr(bx:const char *s, ax:const char keywords[], dx:const char **var);
pascal@20751 378 ;_fastcall int argnum(bx:char *s, ax:const char keywords[], dx:unsigned long *var);
pascal@20751 379 ;***************************************************************
pascal@20751 380 global @argstr$qpxzcxt1ppxzc:near
pascal@20751 381 proc @argstr$qpxzcxt1ppxzc near
pascal@20751 382
pascal@20751 383 stc
pascal@20751 384 db 73h ; jnc
pascal@20751 385 global @argnum$qpzcxpxzcpul:near
pascal@20751 386 @argnum$qpzcxpxzcpul:
pascal@20751 387 clc
pascal@20751 388
pascal@20751 389 xchg ax,bx ; keywords
pascal@20751 390 xchg ax,cx ; s
pascal@20751 391 xchg ax,dx ; vars
pascal@20751 392 sbb dx,dx ; str:-1 num:0
pascal@20751 393 sbb dx,-4 ; str:2 num:4
pascal@20751 394 push si di
pascal@20751 395 xchg ax,di ; vars
pascal@20751 396 dec bx
pascal@20751 397 mov al,0
pascal@20751 398 @@testalt:
pascal@20751 399 sub di,dx
pascal@20751 400 @@test:
pascal@20751 401 cmp al,'='
pascal@20751 402 je @@found
pascal@20751 403 mov si,cx ; s
pascal@20751 404 add di,dx
pascal@20751 405 @@match:
pascal@20751 406 inc bx
pascal@20751 407 lodsb
pascal@20751 408 or al,20h
pascal@20751 409 cmp al,[bx]
pascal@20751 410 je @@match
pascal@20751 411 cmp al,'/' ; 2f
pascal@20751 412 jne @@notopt
pascal@20751 413 cmp [byte bx],'-'
pascal@20751 414 je @@match
pascal@20751 415 @@notopt:
pascal@20751 416 ifdef EXTRA
pascal@20751 417 add di,dx
pascal@20751 418 cmp [byte bx],'/'
pascal@20751 419 je @@testalt
pascal@20751 420 sub di,dx
pascal@20751 421 endif
pascal@20751 422 cmp [byte bx],'|'
pascal@20751 423 je @@test
pascal@20751 424 mov al,0
pascal@20751 425 inc bx
pascal@20751 426 cmp [bx-1],al
pascal@20751 427 jne @@notopt
pascal@20751 428 stc
pascal@20751 429 jmp @@nokeyword
pascal@20751 430 @@found:
pascal@20751 431 mov [di],si
pascal@20751 432 dec dx
pascal@20751 433 dec dx
pascal@20751 434 je @@done
pascal@20751 435 push si
pascal@20751 436 call @strtol$qpxzc
pascal@20751 437 mov [di],ax
pascal@20751 438 mov [di+2],dx
pascal@20751 439 @@done:
pascal@20751 440 clc
pascal@20751 441 @@nokeyword:
pascal@20751 442 sbb ax,ax
pascal@20751 443 pop di si
pascal@20751 444 ret
pascal@20751 445
pascal@20751 446 endp @argstr$qpxzcxt1ppxzc
pascal@20751 447
pascal@20751 448 else
pascal@20751 449
pascal@19515 450 ;***************************************************************
pascal@20630 451 ;_fastcall int strhead(bx:const char* a, ax:const char* b);
pascal@19515 452 ;***************************************************************
pascal@20528 453 global @strhead$qpxzct1:near
pascal@20528 454 proc @strhead$qpxzct1 near
pascal@19515 455
pascal@19515 456 @@loop:
pascal@19634 457 xchg ax,bx
pascal@19515 458 mov cl,[bx] ; cl = *b++
pascal@19515 459 inc bx
pascal@19515 460 or cl,cl ; clear C
pascal@19515 461 jz fail ; return 0
pascal@19515 462 xchg ax,bx
pascal@19515 463 xor cl,[bx] ; cl -= *a++
pascal@19634 464 inc bx
pascal@19515 465 and cl,0dfh ; case insensitive
pascal@19634 466 jz @@loop
pascal@19634 467 ret ; return b (is not 0)
pascal@19515 468
pascal@20528 469 endp @strhead$qpxzct1
pascal@19515 470
pascal@20751 471 endif
pascal@19515 472
pascal@19515 473 ;***************************************************************
pascal@20630 474 ;_fastcall char* malloc_or_die(ax:unsigned size);
pascal@19515 475 ;***************************************************************
pascal@20528 476 global @malloc_or_die$qui:near
pascal@20528 477 proc @malloc_or_die$qui near
pascal@19515 478
pascal@20540 479 xchg ax,cx ; size
pascal@19515 480 global malloc_or_die:near ; malloc_or_die(cx)
pascal@19515 481 malloc_or_die:
pascal@20510 482 mov ax,[_heap_top] ; return value
pascal@20510 483 mov bx,sp
pascal@20510 484 add bh,-14h ; MIN_STACK=_1k+PAGE_SIZE
pascal@20510 485 sub bx,ax ; can't overflow
pascal@20510 486 cmp bx,cx
pascal@20456 487 mov bx,offset msg_malloc
pascal@20510 488 jb die
pascal@20510 489 add [_heap_top],cx ; _BEG has zero'd heap
pascal@19515 490 ret
pascal@19515 491
pascal@20528 492 endp @malloc_or_die$qui
pascal@19515 493
pascal@19515 494
pascal@19515 495 ;***************************************************************
pascal@20630 496 ;_fastcall int die(bx:const char* msg);
pascal@19538 497 ;int exit();
pascal@19515 498 ;int abort();
pascal@19515 499 ;***************************************************************
pascal@20528 500 global @die$qpxzc:near
pascal@20528 501 proc @die$qpxzc near
pascal@20528 502 @die$qpxzc:
pascal@19515 503 global die:near ; die(bx)
pascal@19515 504 die:
pascal@19515 505 call puts
pascal@20486 506 ; global _exit:near
pascal@19538 507 _exit:
pascal@19515 508 mov al,[_no_exit]
pascal@20527 509 or al,al
pascal@19515 510 jne @@hang
pascal@19515 511 extrn exit:near
pascal@19515 512 inc ax
pascal@19515 513 jmp near exit
pascal@19515 514 @@hang:
pascal@19515 515 mov bx, offset msg_hang
pascal@19515 516 call puts
pascal@20486 517 ; global _abort:near
pascal@19515 518 _abort:
pascal@19515 519 cli
pascal@19515 520 @@stop:
pascal@19515 521 hlt
pascal@19515 522 jmp @@stop
pascal@19515 523
pascal@20528 524 endp @die$qpxzc
pascal@19515 525
pascal@19546 526 struc image_himem ;struct image_himem {
pascal@19546 527 fd dw ? ; 0 int fd;
pascal@19546 528 fallback dd ? ; 2 u32 fallback;
pascal@19546 529 size dd ? ; 6 u32 size;
pascal@19546 530 remaining dd ? ;10 u32 remaining;
pascal@19546 531 buf dd ? ;14 u32 buf;
pascal@19546 532 bufv dw ? ;18 u32 *bufv;
pascal@19546 533 errmsg dw ? ;20 char *errmsg;
pascal@19546 534 chunk_size dd ? ;22 u32 chunk_size;
pascal@19546 535 next_chunk dw ? ;26 void (*next_chunk)(struct image_himem *);
pascal@19546 536 state dw ? ;28 u16 state;
pascal@19546 537 fd2close dw ? ;30 u16 fd2close;
pascal@19546 538 ends ;};
pascal@19515 539
pascal@19636 540 ;***************************************************************
pascal@20630 541 ;static long next_chunk(struct image_himem *di);
pascal@19636 542 ;***************************************************************
pascal@19636 543 proc next_chunk near
pascal@19636 544
pascal@19636 545 push si
pascal@20540 546 mov ax,[(image_himem di).fd]
pascal@19636 547 call close
pascal@19636 548 ifndef NO386
pascal@19636 549 xor eax,eax
pascal@19636 550 else
pascal@19636 551 xor ax,ax
pascal@20485 552 cwd
pascal@19636 553 endif
pascal@19636 554 mov [(image_himem di).fd],ax
pascal@19636 555 mov bx,[(image_himem di).state]
pascal@19636 556 cmp al,[bx] ; ""
pascal@19636 557 jz @@end
pascal@19636 558 mov si,bx
pascal@19636 559 @@scan:
pascal@19636 560 lodsb
pascal@19636 561 mov cx,si
pascal@19636 562 cmp al,','
pascal@19636 563 jz @@eos
pascal@20527 564 or al,al
pascal@19636 565 jnz @@scan
pascal@19636 566 dec cx
pascal@19636 567 @@eos:
pascal@19636 568 mov [(image_himem di).state],cx
pascal@19636 569 dec si
pascal@19636 570 push [word si]
pascal@20485 571 mov [byte si],ah ; set temp eos
pascal@19636 572 call open
pascal@19636 573 pop [word si] ; restore string
pascal@19636 574 jc @@die
pascal@19636 575 mov [(image_himem di).fd],ax
pascal@19636 576 mov [(image_himem di).fd2close],ax
pascal@20542 577 mov bl,02h ; SEEK_END
pascal@19636 578 call lseek0
pascal@19636 579 @@die:
pascal@19636 580 mov bx,[(image_himem di).errmsg]
pascal@19636 581 jc die
pascal@19636 582 ifndef NO386
pascal@19636 583 push eax
pascal@20548 584 mov ax,[(image_himem di).fd]
pascal@19636 585 call rewind
pascal@19636 586 pop eax
pascal@19636 587 @@end:
pascal@19636 588 mov [(image_himem di).chunk_size],eax
pascal@19636 589 else
pascal@19636 590 push ax
pascal@19636 591 push dx
pascal@20548 592 mov ax,[(image_himem di).fd]
pascal@19636 593 call rewind
pascal@19636 594 pop dx
pascal@19636 595 pop ax
pascal@19636 596 @@end:
pascal@19636 597 mov [word (image_himem di).chunk_size],ax
pascal@19636 598 mov [word ((image_himem di).chunk_size)+2],dx
pascal@19636 599 endif
pascal@19636 600 pop si
pascal@19636 601 ret
pascal@19636 602
pascal@19636 603 endp next_chunk
pascal@19636 604
pascal@19636 605
pascal@19571 606 ifdef LARGE_IMAGES
pascal@19571 607 struc data_himem ;struct data_himem {
pascal@19571 608 first dd ? ; 0 u32 first;
pascal@19571 609 cacheidx dw ? ; 4 int cacheidx;
pascal@19571 610 pageidx dw ? ; 6 int pageidx;
pascal@19571 611 cache dd 1024 dup(?) ; 8 int cache;
pascal@19571 612 page dd 1024 dup(?) ;4104 int page;
pascal@19571 613 ends ;}; // size=8200
pascal@19571 614 endif
pascal@19571 615
pascal@19515 616 ;***************************************************************
pascal@20630 617 ;_fastcall u32* malloc_bufv_or_die(bx:struct image_himem *m);
pascal@19538 618 ;***************************************************************
pascal@20528 619 global @malloc_bufv_or_die$qp11image_himem:near
pascal@20528 620 proc @malloc_bufv_or_die$qp11image_himem near
pascal@19538 621
pascal@19636 622 p386
pascal@19538 623 push si
pascal@20538 624 mov si,bx
pascal@19571 625 ifdef LARGE_IMAGES
pascal@20527 626 movzx ecx,[word ((image_himem si).size) + 2]
pascal@19571 627 shr cx,4 ; pages index size = size >> 20
pascal@19571 628 add cx,8+4096+8
pascal@19571 629 call malloc_or_die
pascal@20527 630 mov cx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
pascal@19571 631 add ecx,[(image_himem si).size]
pascal@19571 632 shr ecx,12
pascal@19571 633 mov [curdata],ax
pascal@19571 634 else
pascal@19546 635 mov ecx,[(image_himem si).size]
pascal@19538 636 dec ecx
pascal@19538 637 shr ecx,12
pascal@19538 638 inc cx ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
pascal@19538 639 push cx
pascal@19538 640 inc cx ; cnt+1
pascal@19538 641 shl cx,2 ; bufv => vcpi => vm86
pascal@19538 642 ; our malloc zeroes allocated mem: bufv[cnt]=0;
pascal@19538 643 ; Allocate pages, storing addrs in addrbuf
pascal@19538 644 call malloc_or_die
pascal@19571 645 pop cx
pascal@19571 646 push ax
pascal@19571 647 endif
pascal@19546 648 mov [(image_himem si).bufv],ax
pascal@19571 649 xchg ax,si
pascal@19538 650 @@vcpi_alloc:
pascal@19538 651 xor edx,edx
pascal@19538 652 mov ax,0DE04h
pascal@19538 653 int 67h
pascal@19538 654 or ah,ah
pascal@19538 655 mov bx,offset vcpi_alloc_err
pascal@19571 656 jnz die
pascal@19571 657 ; for (i = cnt-1; i >= 0; i--)
pascal@19571 658 ifdef LARGE_IMAGES
pascal@19571 659 mov eax,ecx
pascal@19571 660 dec eax
pascal@19571 661 else
pascal@19571 662 mov ax,cx
pascal@19571 663 dec ax
pascal@19571 664 cwde
pascal@19571 665 endif
pascal@19571 666 shl eax,12 ; i*_4k
pascal@19571 667 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
pascal@19899 668 extrn _imgs
pascal@19899 669 mov bx,offset _imgs+2
pascal@19571 670 push eax
pascal@19571 671 add eax,[bx-2+2]
pascal@19571 672 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
pascal@19571 673 pop eax ; i*_4k
pascal@19571 674 jbe @@pmok
pascal@19571 675 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
pascal@19571 676 jae @@vcpi_alloc
pascal@19571 677 @@pmok:
pascal@19571 678 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
pascal@19899 679 extrn _imgs
pascal@19899 680 mov bx,offset _imgs+32+2
pascal@19571 681 add eax,[bx-2+2] ; +initrd.fallback
pascal@19571 682 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
pascal@19571 683 ja @@initrdok
pascal@19571 684 mov eax,[bx-2+6] ; initrd.size
pascal@19571 685 add eax,[bx-2+2] ; +initrd.fallback
pascal@19571 686 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
pascal@19571 687 @@jnc_vcpi_alloc:
pascal@19571 688 ja @@vcpi_alloc
pascal@19571 689 @@initrdok:
pascal@19571 690 ifdef LARGE_IMAGES
pascal@19571 691 cmp [(data_himem si).first],0
pascal@19571 692 jne @@notfirst
pascal@19571 693 mov [(data_himem si).first],edx
pascal@19571 694 @@notfirst:
pascal@19571 695 mov bx,[(data_himem si).cacheidx]
pascal@19571 696 cmp bh,4
pascal@19571 697 jae @@nextpage
pascal@19571 698 shl bx,2
pascal@19571 699 inc [(data_himem si).cacheidx]
pascal@19571 700 mov [(data_himem bx+si).cache],edx
pascal@19571 701 loopd @@vcpi_alloc
pascal@19571 702 mov [(data_himem bx+si).cache],ecx ; last is 0
pascal@19571 703 @@nextpage:
pascal@19571 704 and [(data_himem si).cacheidx],0
pascal@19571 705 mov bx,[(data_himem si).pageidx]
pascal@19571 706 mov [(data_himem bx+si).page],edx
pascal@19571 707 add [(data_himem si).pageidx],4
pascal@19571 708 push cx
pascal@19571 709 lea cx,[(data_himem si).cache]
pascal@19571 710 ifdef NO386
pascal@19571 711 push edx
pascal@19571 712 pop dx
pascal@19571 713 pop ax
pascal@19571 714 endif
pascal@19571 715 call storepage ; storepage(edx,cx)
pascal@19571 716 pop cx
pascal@19571 717 or ecx,ecx ; clear C
pascal@19571 718 jnz @@jnc_vcpi_alloc
pascal@19571 719 mov [dword (data_himem si).cacheidx],ecx
pascal@19571 720 xchg ax,si
pascal@19571 721 else
pascal@19571 722 mov [si],edx
pascal@19571 723 lodsd ; si=+4
pascal@19538 724 loop @@vcpi_alloc
pascal@19538 725 pop ax
pascal@19571 726 endif
pascal@19538 727 pop si
pascal@19538 728 ret
pascal@19636 729 ifdef NO386
pascal@19636 730 p8086
pascal@19636 731 endif
pascal@19538 732
pascal@20528 733 endp @malloc_bufv_or_die$qp11image_himem
pascal@19538 734
pascal@19538 735
pascal@19538 736 ;***************************************************************
pascal@20630 737 ;_fastcall void memcpy_image(bx:struct image_himem *m);
pascal@19515 738 ;***************************************************************
pascal@20528 739 global @memcpy_image$qp11image_himem:near
pascal@20528 740 proc @memcpy_image$qp11image_himem near
pascal@19515 741
pascal@19571 742 ifndef NO386
pascal@19571 743 mov edx,[(image_himem bx).fallback]
pascal@19571 744 mov eax,[(image_himem bx).buf]
pascal@19571 745 cmp eax,edx ; if (m->fallback != m->buf)
pascal@19571 746 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 747 ifdef LARGE_IMAGES
pascal@19571 748 mov ecx,[(image_himem bx).size]
pascal@20146 749 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19571 750 push ecx
pascal@19571 751 else
pascal@19571 752 push [(image_himem bx).size]
pascal@19571 753 endif
pascal@19571 754 push eax
pascal@19571 755 push 0
pascal@19571 756 call_memcpy32:
pascal@19571 757 push edx
pascal@19571 758 else
pascal@19571 759 mov ax,[word ((image_himem bx).fallback)]
pascal@19571 760 mov dx,[word ((image_himem bx).fallback)+2]
pascal@19571 761 mov cx,[word ((image_himem bx).buf)]
pascal@19571 762 cmp ax,cx ; if (m->fallback != m->buf)
pascal@19571 763 jnz @@do
pascal@19571 764 cmp dx,[word ((image_himem bx).buf)+2]
pascal@19571 765 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 766 @@do:
pascal@19571 767 push [word ((image_himem bx).size)+2]
pascal@19571 768 push [word ((image_himem bx).size)]
pascal@19571 769 push [word ((image_himem bx).buf)+2]
pascal@19571 770 push cx
pascal@19571 771 xor cx,cx
pascal@19571 772 push cx
pascal@19571 773 call_memcpy32:
pascal@19571 774 push dx
pascal@19571 775 push ax
pascal@19571 776 ifdef LARGE_IMAGES
pascal@19571 777 jmp @@memcpy
pascal@20146 778 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19636 779 p386
pascal@19571 780 push ecx
pascal@19571 781 push eax
pascal@19571 782 push 0
pascal@19571 783 push edx
pascal@19636 784 ifdef NO386
pascal@19636 785 p8086
pascal@19636 786 endif
pascal@19571 787 endif
pascal@19571 788 endif
pascal@19571 789 @@memcpy:
pascal@20528 790 extrn memcpy32:near
pascal@20528 791 call near memcpy32
pascal@19571 792 @@skip:
pascal@19571 793 ret
pascal@19571 794
pascal@20528 795 endp @memcpy_image$qp11image_himem
pascal@19571 796
pascal@19571 797 ;***************************************************************
pascal@20630 798 ;_fastcall void storepage(bx:u32 *dst);
pascal@19571 799 ;***************************************************************
pascal@20538 800 global @storepage$qpul:near
pascal@20538 801 proc @storepage$qpul near
pascal@19571 802
pascal@19571 803 ifndef NO386
pascal@19571 804 mov edx,[bx]
pascal@19571 805 else
pascal@19571 806 mov ax,[bx]
pascal@19571 807 mov dx,[bx+2]
pascal@19571 808 endif
pascal@20538 809 mov cx,offset _xfer_buf
pascal@20146 810 storepage: ; storepage(edx,cx)
pascal@19571 811 ifndef NO386
pascal@19571 812 push 0
pascal@19571 813 push 4096
pascal@19571 814 push 0
pascal@19571 815 else
pascal@19571 816 xor bx,bx
pascal@19571 817 push bx
pascal@19571 818 mov bh,4096/256
pascal@19571 819 push bx
pascal@19571 820 xor bx,bx
pascal@19571 821 push bx
pascal@19571 822 endif
pascal@19571 823 push cx
pascal@19571 824 push ds
pascal@19571 825 jmp call_memcpy32
pascal@19571 826
pascal@20538 827 endp @storepage$qpul
pascal@19571 828
pascal@19571 829
pascal@19571 830 ifdef LARGE_IMAGES
pascal@19636 831 p386
pascal@19571 832 ;***************************************************************
pascal@20630 833 ;_fastcall void reset_bufv(bx:u32 *p);
pascal@19571 834 ;***************************************************************
pascal@20528 835 global @reset_bufv$qpul:near
pascal@20528 836 proc @reset_bufv$qpul near
pascal@19571 837
pascal@20524 838 mov [curdata],bx
pascal@19571 839 and [dword (data_himem bx).cacheidx],0
pascal@19571 840 ret
pascal@19571 841
pascal@20528 842 endp @reset_bufv$qpul
pascal@19571 843
pascal@19571 844 ;***************************************************************
pascal@19571 845 ;u32* prev_bufv();
pascal@19571 846 ;u32* prev_bufv();
pascal@19571 847 ;***************************************************************
pascal@19571 848 global _prev_bufv:near
pascal@19571 849 global _next_bufv:near
pascal@19571 850 proc _prev_bufv near
pascal@19571 851
pascal@19571 852 stc
pascal@19571 853 db 73h ; jnc
pascal@19571 854 _next_bufv:
pascal@19571 855 clc
pascal@20528 856 push si
pascal@20528 857 mov si,[curdata]
pascal@19571 858 sbb ax,ax
pascal@20527 859 cmc
pascal@20527 860 adc ax,[(data_himem si).cacheidx] ; -1/+1
pascal@19571 861 xor ecx,ecx
pascal@19571 862 test ax,0fc00h
pascal@19571 863 jz @@gotpage
pascal@19571 864 push ax ; FFFF / 0400
pascal@19571 865 sar ax,8 ; FFFC / 0004
pascal@19571 866 and al,0fch
pascal@19571 867 add [(data_himem si).pageidx],ax
pascal@19571 868 mov bx,[(data_himem si).pageidx]
pascal@19571 869 lea bx,[(data_himem bx+si).page]
pascal@19571 870 mov edx,ds
pascal@19571 871 shl edx,4
pascal@19571 872 lea cx,[(data_himem si).cache]
pascal@19571 873 add edx,ecx
pascal@19571 874 mov eax,[bx]
pascal@19571 875 or eax,eax
pascal@19571 876 jnz @@pageok
pascal@19571 877 pop ax
pascal@19571 878 xchg ax,bx
pascal@19571 879 pop si
pascal@19571 880 ret
pascal@19571 881 @@pageok:
pascal@19571 882 mov cx,4096
pascal@19571 883 call memcpy_imagez ; get page
pascal@19571 884 pop ax ; FFFF / 0400
pascal@19571 885 cbw
pascal@19571 886 shr ax,6 ; 03FF / 0000
pascal@19571 887 @@gotpage:
pascal@19571 888 mov [(data_himem si).cacheidx],ax
pascal@19571 889 shl ax,2
pascal@19571 890 xchg ax,bx
pascal@19571 891 lea ax,[(data_himem bx+si).cache]
pascal@19571 892 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
pascal@19571 893 jnz @@notfirst2
pascal@19571 894 xchg ax,si ; &first
pascal@19571 895 @@notfirst2:
pascal@19571 896 pop si
pascal@19571 897 ret
pascal@19571 898
pascal@19571 899 endp _prev_bufv
pascal@19571 900 endif
pascal@19571 901
pascal@20146 902 ifdef NO386
pascal@20146 903 p8086
pascal@20146 904 endif
pascal@19571 905
pascal@19571 906 ;***************************************************************
pascal@20630 907 ;_fastcall void open_image(bx:const char *name, ax:struct image_himem *m);
pascal@19515 908 ;***************************************************************
pascal@20528 909 global @open_image$qpxzcp11image_himem:near
pascal@20528 910 proc @open_image$qpxzcp11image_himem near
pascal@19515 911
pascal@20484 912 push di
pascal@20485 913 xchg ax,di
pascal@20538 914 ifdef EXTRA
pascal@20538 915 cmp [(image_himem di).fd],0 ; iso image/kernel ?
pascal@20538 916 jnz @@alreadydone
pascal@20538 917 endif
pascal@20484 918 mov [(image_himem di).state],bx
pascal@20484 919 push bx
pascal@20534 920 ifdef EXTRA
pascal@20538 921 cmp [(image_himem di).next_chunk],0 ; iso image/initrd ?
pascal@20538 922 jnz @@next
pascal@20534 923 endif
pascal@20534 924 mov [(image_himem di).next_chunk],offset next_chunk
pascal@19515 925 @@next:
pascal@19546 926 call [(image_himem di).next_chunk] ; m->next_chunk()
pascal@19515 927 ifndef NO386
pascal@19515 928 add eax,3
pascal@19515 929 and al,0FCh
pascal@19546 930 add [(image_himem di).size],eax ; m->size += m->chunk_size
pascal@19515 931 or eax,eax
pascal@19515 932 else
pascal@19515 933 add ax,3
pascal@19515 934 adc dx,0
pascal@19515 935 and al,0FCh
pascal@19546 936 add [word (image_himem di).size],ax ; m->size += m->chunk_size
pascal@19546 937 adc [word ((image_himem di).size)+2],dx
pascal@20520 938 or ax,dx
pascal@19515 939 endif
pascal@20520 940 jnz @@next
pascal@20484 941 pop [(image_himem di).state]
pascal@19546 942 call [(image_himem di).next_chunk] ; m->next_chunk()
pascal@20538 943 @@alreadydone:
pascal@20484 944 pop di
pascal@19515 945 ret
pascal@19515 946
pascal@20528 947 endp @open_image$qpxzcp11image_himem
pascal@19515 948
pascal@19515 949
pascal@19515 950 ;***************************************************************
pascal@20630 951 ;_fastcall int read_image(bx:struct image_himem *m);
pascal@19515 952 ;***************************************************************
pascal@20538 953 global @read_image$qp11image_himem:near
pascal@20538 954 proc @read_image$qp11image_himem near
pascal@19515 955
pascal@20539 956 push si di
pascal@20538 957 mov di,bx
pascal@20539 958 mov si,4096
pascal@20539 959 push si ; original size
pascal@19515 960 @@loop:
pascal@19538 961 ifndef NO386
pascal@20539 962 movzx ecx,si
pascal@19546 963 mov eax,[(image_himem di).chunk_size]
pascal@19538 964 cmp ecx,eax
pascal@19538 965 jb @@szok
pascal@19538 966 else
pascal@20539 967 mov cx,si
pascal@19546 968 mov ax,[word (image_himem di).chunk_size]
pascal@19538 969 cmp cx,ax
pascal@19515 970 jb @@szok
pascal@19546 971 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
pascal@19515 972 jne @@szok
pascal@20484 973 endif
pascal@19515 974 xchg ax,cx
pascal@19515 975 @@szok:
pascal@19538 976 jcxz image_done
pascal@20539 977 mov dx,offset _xfer_buf
pascal@20538 978 mov bx,[di]
pascal@20528 979 call @read$cxdxbx
pascal@19538 980 jc image_done
pascal@19515 981 xor cx,cx
pascal@20539 982 cwd ; ax < 8000h
pascal@19538 983 ifndef NO386
pascal@19538 984 cwde ; ax < 8000h
pascal@19546 985 sub [(image_himem di).chunk_size],eax
pascal@20541 986 xchg eax,ebx
pascal@19538 987 else
pascal@19546 988 sub [word (image_himem di).chunk_size],ax
pascal@20539 989 xchg ax,bx
pascal@19546 990 sbb [word ((image_himem di).chunk_size)+2],dx
pascal@19538 991 jnz @@fill
pascal@19546 992 cmp [word (image_himem di).chunk_size],dx
pascal@19538 993 endif
pascal@19538 994 jnz @@fill
pascal@20539 995 dec cx
pascal@19515 996 @@fill:
pascal@20539 997 test bl,3
pascal@19515 998 je @@filled
pascal@20539 999 mov [bx+_xfer_buf],dh
pascal@20539 1000 inc bx
pascal@19515 1001 jmp @@fill
pascal@19515 1002 @@filled:
pascal@19538 1003 ifndef NO386
pascal@20541 1004 sub [(image_himem di).remaining],ebx
pascal@19538 1005 else
pascal@20539 1006 sub [word (image_himem di).remaining],bx
pascal@19546 1007 sbb [word ((image_himem di).remaining)+2],dx
pascal@19538 1008 endif
pascal@20541 1009 sub si,bx
pascal@19538 1010 pushf
pascal@20539 1011 and cx,[(image_himem di).next_chunk]
pascal@20484 1012 jcxz @@same_chunk
pascal@20539 1013 call cx
pascal@19538 1014 @@same_chunk:
pascal@19538 1015 popf
pascal@19538 1016 jnz @@loop
pascal@20484 1017 image_done:
pascal@20528 1018 pop ax ; original size
pascal@20539 1019 sub ax,si
pascal@20539 1020 pop di si
pascal@20538 1021 ret
pascal@19515 1022
pascal@20538 1023 endp @read_image$qp11image_himem
pascal@19515 1024
pascal@19515 1025
pascal@19515 1026 ;***************************************************************
pascal@20528 1027 ;pascal unsigned long strtol(const char *s);
pascal@19515 1028 ;***************************************************************
pascal@20528 1029 global @strtol$qpxzc:near
pascal@20528 1030 proc @strtol$qpxzc near
pascal@19515 1031
pascal@20538 1032 pop ax
pascal@20538 1033 pop bx ; s
pascal@19515 1034 push ax
pascal@20528 1035 ifndef NO386
pascal@19515 1036 xor ebx,ebx
pascal@19515 1037 push si
pascal@19634 1038 jcxz @@end
pascal@19515 1039 mov si,cx
pascal@19515 1040 xor ecx,ecx
pascal@19515 1041 xor eax,eax
pascal@19515 1042 lodsb
pascal@19634 1043 mov dx,ax
pascal@19634 1044 or al,20h
pascal@19634 1045 cmp al,'n' ; vga=normal
pascal@19538 1046 je @@vga
pascal@19538 1047 dec cx
pascal@19634 1048 cmp al,'e' ; vga=extended
pascal@19538 1049 je @@vga
pascal@19538 1050 dec cx
pascal@19634 1051 cmp al,'a' ; vga=ask
pascal@19538 1052 jne @@notvga
pascal@19538 1053 @@vga:
pascal@19538 1054 dec cx
pascal@19538 1055 xchg ax,cx
pascal@19538 1056 cwd
pascal@19634 1057 jmp @@popsiret
pascal@19538 1058 @@notvga:
pascal@19538 1059 mov cx,10 ; radix
pascal@19634 1060 xchg ax,dx
pascal@19515 1061 cmp al,'+'
pascal@19515 1062 je @@radixskip
pascal@19515 1063 cmp al,'-'
pascal@19515 1064 clc
pascal@19515 1065 jne @@radixkeep
pascal@19515 1066 stc
pascal@19515 1067 @@radixskip:
pascal@19515 1068 lodsb
pascal@19515 1069 @@radixkeep:
pascal@19515 1070 pushf
pascal@19515 1071 cmp al,'0'
pascal@19515 1072 jne @@radixok
pascal@19515 1073 mov cl,8
pascal@19515 1074 lodsb
pascal@19634 1075 or al,20h
pascal@19634 1076 cmp al,'x'
pascal@19515 1077 jne @@radixok
pascal@19515 1078 mov cl,16
pascal@19515 1079 @@strtollp:
pascal@19515 1080 lodsb
pascal@19515 1081 @@radixok:
pascal@19634 1082 or al,20h
pascal@19515 1083 sub al,'0'
pascal@19515 1084 jb @@endstrtol
pascal@19515 1085 cmp al,9
pascal@19515 1086 jbe @@digitok
pascal@19515 1087 cmp al,'a'-'0'
pascal@19515 1088 jb @@endstrtol
pascal@19515 1089 sub al,'a'-'0'-10
pascal@19515 1090 @@digitok:
pascal@19515 1091 cmp al,cl
pascal@19515 1092 jae @@endstrtol
pascal@19515 1093 xchg eax,ebx
pascal@19515 1094 mul ecx
pascal@19515 1095 add eax,ebx
pascal@19515 1096 xchg eax,ebx
pascal@19515 1097 jmp @@strtollp
pascal@19515 1098 @@endstrtol:
pascal@19515 1099 mov cl,10
pascal@19515 1100 cmp al,'k'-'a'+10
pascal@19515 1101 je @@shift
pascal@19515 1102 mov cl,20
pascal@19515 1103 cmp al,'m'-'a'+10
pascal@19515 1104 je @@shift
pascal@19515 1105 mov cl,30
pascal@19515 1106 cmp al,'g'-'a'+10
pascal@19515 1107 jne @@noshift
pascal@19515 1108 @@shift:
pascal@19515 1109 shl ebx,cl
pascal@19515 1110 @@noshift:
pascal@19515 1111 popf
pascal@19515 1112 jnc @@end
pascal@19515 1113 neg ebx
pascal@19515 1114 @@end:
pascal@19515 1115 push ebx
pascal@19515 1116 pop ax
pascal@19515 1117 pop dx
pascal@19634 1118 @@popsiret:
pascal@19515 1119 pop si
pascal@19515 1120 else
pascal@19515 1121 push si
pascal@19515 1122 push di
pascal@19515 1123 xor ax,ax
pascal@19515 1124 cwd
pascal@19634 1125 jcxz @@goend
pascal@19515 1126 xchg ax,di
pascal@19515 1127 mov si,cx
pascal@19538 1128 lodsb
pascal@19634 1129 mov bx,ax
pascal@19634 1130 or al,20h
pascal@19538 1131 mov cx,-1
pascal@19634 1132 cmp al,'n' ; vga=normal
pascal@19538 1133 je @@vga
pascal@19538 1134 dec cx
pascal@19634 1135 cmp al,'e' ; vga=extended
pascal@19538 1136 je @@vga
pascal@19538 1137 dec cx
pascal@19634 1138 cmp al,'a' ; vga=ask
pascal@19538 1139 jne @@notvga
pascal@19538 1140 @@vga:
pascal@19538 1141 xchg ax,cx
pascal@19538 1142 @@goend:
pascal@19634 1143 jmp @@popdisiret
pascal@19538 1144 @@notvga:
pascal@19515 1145 mov cx,10 ; radix
pascal@19634 1146 xchg ax,bx
pascal@19515 1147 cmp al,'+'
pascal@19515 1148 je @@radixskip
pascal@19515 1149 cmp al,'-'
pascal@19515 1150 clc
pascal@19515 1151 jne @@radixkeep
pascal@19515 1152 stc
pascal@19515 1153 @@radixskip:
pascal@19515 1154 lodsb
pascal@19515 1155 @@radixkeep:
pascal@19515 1156 pushf
pascal@19515 1157 cmp al,'0'
pascal@19515 1158 jne @@radixok
pascal@19515 1159 mov cl,8
pascal@19515 1160 lodsb
pascal@20146 1161 or al,20h
pascal@19634 1162 cmp al,'x'
pascal@19515 1163 jne @@radixok
pascal@19515 1164 mov cl,16
pascal@19515 1165 @@strtollp:
pascal@19515 1166 lodsb
pascal@19515 1167 @@radixok:
pascal@19634 1168 or al,20h
pascal@19515 1169 sub al,'0'
pascal@19515 1170 jb @@endstrtol
pascal@19515 1171 cmp al,9
pascal@19515 1172 jbe @@digitok
pascal@19515 1173 cmp al,'a'-'0'
pascal@19515 1174 jb @@endstrtol
pascal@19515 1175 sub al,'a'-'0'-10
pascal@19515 1176 @@digitok:
pascal@19515 1177 cmp al,cl
pascal@19515 1178 jae @@endstrtol
pascal@19515 1179
pascal@19515 1180 push ax
pascal@19515 1181 push si
pascal@19515 1182 push dx
pascal@19515 1183 xchg ax,di
pascal@19515 1184 mul cx
pascal@19515 1185 xchg ax,di
pascal@19515 1186 xchg ax,dx
pascal@19515 1187 xchg ax,si
pascal@19515 1188 pop ax
pascal@19515 1189 mul cx
pascal@19515 1190 add ax,si
pascal@19515 1191 pop si
pascal@19515 1192 xchg ax,dx
pascal@19515 1193 pop ax
pascal@19515 1194 mov ah,0
pascal@19515 1195 add di,ax
pascal@19515 1196 adc dx,0
pascal@19515 1197
pascal@19515 1198 jmp @@strtollp
pascal@19515 1199 @@endstrtol:
pascal@19515 1200 mov cl,10
pascal@19515 1201 cmp al,'k'-'a'+10
pascal@19515 1202 je @@shift
pascal@19515 1203 mov cl,20
pascal@19515 1204 cmp al,'m'-'a'+10
pascal@19515 1205 je @@shift
pascal@19515 1206 mov cl,30
pascal@19515 1207 cmp al,'g'-'a'+10
pascal@19515 1208 jne @@noshift
pascal@19515 1209 @@shift:
pascal@19515 1210 rcl di,1
pascal@19515 1211 shl dx,1
pascal@19515 1212 loop @@shift
pascal@19515 1213 @@noshift:
pascal@19515 1214 popf
pascal@19515 1215 jnc @@end
pascal@19515 1216 not dx
pascal@19515 1217 neg di
pascal@19515 1218 jne @@end
pascal@19515 1219 inc dx
pascal@19515 1220 @@end:
pascal@19515 1221 xchg ax,di
pascal@19634 1222 @@popdisiret:
pascal@19515 1223 pop di
pascal@19515 1224 pop si
pascal@19515 1225 endif
pascal@20528 1226 strtol_ret:
pascal@19515 1227 ret
pascal@19515 1228
pascal@20528 1229 endp @strtol$qpxzc
pascal@19515 1230
pascal@19515 1231
pascal@20751 1232 ifdef USE_ARGSTR
pascal@20751 1233 ;***************************************************************
pascal@20751 1234 ;_fastcall void set_cmdline(bx:const char *filename);
pascal@20751 1235 ;***************************************************************
pascal@20751 1236 global @set_cmdline$qpxzc:near
pascal@20751 1237 proc @set_cmdline$qpxzc near
pascal@20751 1238 call openargs
pascal@20751 1239 jc strtol_ret
pascal@20751 1240 mov cx,4096
pascal@20751 1241 mov di,[_heap_top]
pascal@20751 1242 extrn read_cmdline:near
pascal@20751 1243 jmp near read_cmdline ; read_cmdline(ax,di,cx)
pascal@20751 1244
pascal@20751 1245 endp @set_cmdline$qpxzc
pascal@20751 1246 endif
pascal@20751 1247
pascal@20751 1248
pascal@19515 1249 ifdef NO386
pascal@19515 1250 ;***************************************************************
pascal@19515 1251 ;u16 topseg();
pascal@19515 1252 ;***************************************************************
pascal@19515 1253 global _topseg:near
pascal@19515 1254 proc _topseg near
pascal@19515 1255
pascal@19515 1256 int 12h
pascal@19515 1257 jnc @@max640k
pascal@19515 1258 mov ax,640 ; 9000
pascal@19515 1259 @@max640k:
pascal@19634 1260 dec ax
pascal@19515 1261 and al,0C0h
pascal@19515 1262 mov cl,6
pascal@19515 1263 shl ax,cl
pascal@19515 1264 ret
pascal@19515 1265
pascal@19515 1266 endp _topseg
pascal@19515 1267 endif
pascal@19515 1268
pascal@19825 1269 ifdef EXTRA
pascal@19825 1270 p8086
pascal@19825 1271 ;***************************************************************
pascal@19825 1272 ;char *progname(void)
pascal@19825 1273 ;***************************************************************
pascal@19825 1274 global _progname:near
pascal@19825 1275 proc _progname near
pascal@19825 1276
pascal@19825 1277 push si di es
pascal@19825 1278 mov ah,30h
pascal@19825 1279 int 21h
pascal@19875 1280 xor di,di
pascal@19825 1281 cmp al,3
pascal@19874 1282 mov ax,di
pascal@19825 1283 jb @@skip
pascal@19873 1284 ;mov es,[cs:2Ch]
pascal@19874 1285 mov es,[di+2Ch]
pascal@20146 1286 mov cx,sp ; big enough
pascal@19870 1287 @@loop:
pascal@19825 1288 repne
pascal@19825 1289 scasb
pascal@19825 1290 scasb
pascal@19870 1291 jne @@loop
pascal@19870 1292 inc di
pascal@19870 1293 inc di
pascal@19870 1294 mov si,di ; progname @es:di
pascal@19870 1295 repne
pascal@19870 1296 scasb
pascal@19870 1297 mov cx,di
pascal@19874 1298 sub cx,si ; progname len
pascal@19870 1299 call malloc_or_die ; keep cx
pascal@19870 1300 mov di,ax
pascal@19825 1301 push ds
pascal@19825 1302 push es
pascal@19825 1303 pop ds
pascal@19825 1304 pop es
pascal@19870 1305 rep
pascal@19870 1306 movsb
pascal@19870 1307 push es
pascal@19825 1308 pop ds
pascal@19825 1309 @@skip:
pascal@19825 1310 pop es di si
pascal@19825 1311 ret
pascal@19825 1312
pascal@19825 1313 endp _progname
pascal@19825 1314
pascal@19825 1315
pascal@19825 1316 ;***************************************************************
pascal@20630 1317 ;_fastcall void chdirname(bx:char *path)
pascal@19825 1318 ;***************************************************************
pascal@20528 1319 global @chdirname$qpzc:near
pascal@20528 1320 proc @chdirname$qpzc near
pascal@19825 1321
pascal@20146 1322 cmp [byte bx+1],3Ah ; ':'
pascal@19825 1323 jne @@nodisk
pascal@19875 1324 mov dl,20h
pascal@19875 1325 or dl,[bx]
pascal@19825 1326 sub dl,61h
pascal@19825 1327 mov ah,0Eh
pascal@19825 1328 int 21h
pascal@19825 1329 inc bx
pascal@19825 1330 inc bx
pascal@19825 1331 @@nodisk:
pascal@19825 1332 xor cx,cx
pascal@19825 1333 @@next:
pascal@19825 1334 mov al,[bx]
pascal@19825 1335 cmp al,5Ch
pascal@19825 1336 jne @@tsteos
pascal@19875 1337 mov dx,bx
pascal@19875 1338 inc cx
pascal@19825 1339 @@tsteos:
pascal@19825 1340 inc bx
pascal@19825 1341 or al,al
pascal@19825 1342 jnz @@next
pascal@19825 1343 jcxz @@end
pascal@19875 1344 mov bx,dx
pascal@19825 1345 push [word bx]
pascal@19825 1346 mov [bx],al
pascal@20630 1347 ifdef LONG_FILENAME
pascal@19875 1348 stc
pascal@20146 1349 mov ax,713Bh ; chdir long filename (ds:dx)
pascal@19875 1350 int 21h
pascal@20630 1351 jnc @@chdirdone
pascal@20630 1352 endif
pascal@20146 1353 mov ah,3Bh ; chdir(ds:dx)
pascal@19875 1354 int 21h
pascal@20510 1355 @@chdirdone:
pascal@19825 1356 pop [word bx]
pascal@19825 1357 @@end:
pascal@19825 1358 ret
pascal@19825 1359
pascal@20528 1360 endp @chdirname$qpzc
pascal@19825 1361
pascal@19825 1362
pascal@19825 1363 ;***************************************************************
pascal@20630 1364 ;_fastcall char *ultoa(axdx:unsigned long n);
pascal@19825 1365 ;***************************************************************
pascal@20528 1366 global @ultoa$qul:near
pascal@20528 1367 proc @ultoa$qul near
pascal@19825 1368
pascal@20538 1369 xchg ax,cx
pascal@20538 1370 xchg ax,dx ; AX:CX = n
pascal@19825 1371 push si
pascal@19825 1372 mov si,10
pascal@19825 1373 mov bx,offset ultoabuf+11
pascal@19825 1374 @@loop:
pascal@19825 1375 dec bx
pascal@19825 1376 xor dx,dx
pascal@19825 1377 div si ; DX:AX = 0000:hi(n)
pascal@19825 1378 xchg ax,cx ; CX = hi(n)/10
pascal@19825 1379 div si ; DX:AX = hi(n)%10:lo(n)
pascal@19825 1380 xchg ax,cx ; CX = lo(n/10)
pascal@20528 1381 ; AX = hi(n)/10 = hi(n/10)
pascal@20528 1382 mov [byte bx],'0'
pascal@20528 1383 add [bx],dl ; DL = n%10
pascal@20528 1384 mov dx,ax
pascal@20528 1385 or dx,cx
pascal@19825 1386 jnz @@loop
pascal@19825 1387 xchg ax,bx
pascal@19825 1388 pop si
pascal@19825 1389 ret
pascal@19825 1390
pascal@20528 1391 endp @ultoa$qul
pascal@19825 1392
pascal@19825 1393
pascal@19825 1394 ;***************************************************************
pascal@20630 1395 ;_fastcall unsigned long kver2ul(bx:char *kernel_version);
pascal@19825 1396 ;***************************************************************
pascal@20528 1397 global @kver2ul$qpzc:near
pascal@20528 1398 proc @kver2ul$qpzc near
pascal@19825 1399
pascal@20146 1400 push si
pascal@20538 1401 mov si,bx
pascal@20146 1402 xor bx,bx
pascal@20146 1403 mov cx,304h
pascal@19825 1404 @@number:
pascal@19825 1405 xor ax,ax
pascal@20146 1406 cwd
pascal@19825 1407 @@digit:
pascal@19825 1408 shl al,cl
pascal@19825 1409 shl ax,cl
pascal@19825 1410 lodsb
pascal@19825 1411 sub al,30h
pascal@19825 1412 cmp al,9
pascal@19825 1413 jbe @@digit
pascal@20146 1414 mov dl,bh
pascal@20146 1415 mov bh,bl
pascal@20146 1416 mov bl,ah
pascal@20146 1417 dec ch
pascal@20146 1418 jnz @@number
pascal@20146 1419 xchg ax,bx
pascal@20146 1420 pop si
pascal@19825 1421 kver2ulret:
pascal@19825 1422 ret
pascal@19825 1423
pascal@20528 1424 endp @kver2ul$qpzc
pascal@19825 1425
pascal@20528 1426 endif
pascal@19825 1427
pascal@19825 1428 ;***************************************************************
pascal@19825 1429 ;void try_default_args();
pascal@19825 1430 ;***************************************************************
pascal@20528 1431 ifdef EXTRA
pascal@20528 1432
pascal@19825 1433 global _try_default_args:near
pascal@19825 1434 proc _try_default_args near
pascal@19825 1435
pascal@19825 1436 mov bx,offset tazboot_cmd
pascal@19825 1437 call open
pascal@19825 1438 jc kver2ulret
pascal@19825 1439 mov cx,4096
pascal@19825 1440 mov di,[_heap_top]
pascal@19825 1441 extrn read_cmdline:near
pascal@19825 1442 jmp near read_cmdline ; read_cmdline(ax,di,cx)
pascal@19825 1443
pascal@19825 1444 endp _try_default_args
pascal@19825 1445
pascal@20528 1446 endif
pascal@19825 1447
pascal@19515 1448 ends _TEXT
pascal@19515 1449
pascal@19515 1450 end
pascal@19515 1451
pascal@19515 1452 ;###### END OF FILE ############################################
pascal@19825 1453