wok annotate linld/stuff/src/CRTL.ASM @ rev 23996

linld: add iso support
author Pascal Bellard <pascal.bellard@slitaz.org>
date Fri Jan 08 20:15:35 2021 +0000 (2021-01-08)
parents 34d90fb03f57
children 5c1ce90eb1d6
rev   line source
pascal@19515 1 ;***************************************************************
pascal@19515 2 ;****** This file is distributed under GPL
pascal@19515 3 ;***************************************************************
pascal@19515 4 ideal
pascal@21984 5 %PAGESIZE 1000
pascal@19515 6 %crefref
pascal@19515 7 %noincl
pascal@19515 8 %nomacs
pascal@19636 9 ifdef NO386
pascal@19636 10 p8086
pascal@19636 11 else
pascal@19515 12 p386
pascal@19636 13 endif
pascal@19515 14
pascal@19515 15 group DGROUP _TEXT,_DATA,_BSS
pascal@19515 16 assume cs:DGROUP,ds:DGROUP
pascal@19515 17
pascal@19515 18 segment _DATA byte public use16 'DATA'
pascal@19515 19
pascal@23996 20 loaderr db "Load failure",0
pascal@23983 21 msg_hang db "Himem broken",0
pascal@22668 22 vcpi_alloc_err db "VCPI"
pascal@22668 23 global overflow:byte
pascal@22668 24 overflow db "/"
pascal@23996 25 msg_malloc db "Out of memory"
pascal@23996 26 isorootofs dd 16*2048
pascal@19515 27
pascal@19515 28 ends _DATA
pascal@19515 29
pascal@19515 30 segment _BSS byte public use16 'BSS'
pascal@19515 31
pascal@23797 32 include "isostate.inc"
pascal@21747 33 public _isostate
pascal@21747 34 _isostate isostate <?>
pascal@21754 35 org $-7
pascal@20538 36 _xfer_buf db 4096 dup (?)
pascal@19515 37 filecnt db ? ; in fact 0 minus file count...
pascal@19515 38 nextfilename dw ?
pascal@19515 39
pascal@19515 40 ends _BSS
pascal@19515 41
pascal@19515 42 segment _TEXT byte public use16 'CODE'
pascal@19515 43
pascal@19515 44 ;***************************************************************
pascal@20630 45 ;_fastcall void strcatb(bx:const char* a, ax:const char* b);
pascal@19538 46 ;***************************************************************
pascal@20528 47 global @strcatb$qpxzct1:near
pascal@20528 48 proc @strcatb$qpxzct1 near
pascal@19538 49
pascal@19538 50 push si
pascal@20794 51 xchg ax,si ; b
pascal@20794 52 dec bx
pascal@19538 53 @@catlp:
pascal@20794 54 inc bx
pascal@20794 55 cmp [byte bx],0 ; a=bx
pascal@19538 56 jne @@catlp
pascal@20794 57 db 0b8h,20h ; mov ax,??20h
pascal@19538 58 @@cpylp:
pascal@20794 59 lodsb
pascal@20794 60 @@cpyhead:
pascal@20794 61 mov [bx],al
pascal@20142 62 inc bx
pascal@20527 63 or al,al
pascal@19538 64 jne @@cpylp
pascal@20142 65 strend:
pascal@19538 66 pop si
pascal@23797 67 @ret:
pascal@20142 68 ret
pascal@19538 69
pascal@20528 70 endp @strcatb$qpxzct1
pascal@19538 71
pascal@19538 72
pascal@20146 73 p8086
pascal@20146 74
pascal@23996 75 opendos:
pascal@23996 76 ifdef LONG_FILENAME
pascal@23996 77 xchg ax,cx ; attributes
pascal@23996 78 mov ax,716Ch
pascal@23996 79 push bx si
pascal@23996 80 mov si,bx
pascal@23996 81 xor bx,bx ; R/O
pascal@23996 82 cwd ; action = open
pascal@23996 83 stc
pascal@23996 84 int 21h
pascal@23996 85 pop si dx
pascal@23996 86 jnc openok
pascal@23996 87 mov ax,3d00h ; read-only+compatibility
pascal@23996 88 else
pascal@23996 89 mov ah,3dh ; read-only+compatibility
pascal@23996 90 mov dx,bx
pascal@23996 91 endif
pascal@23996 92 ;mov cl,0 ; attribute mask
pascal@23996 93 call dos
pascal@23996 94 jc openret
pascal@23996 95 openok:
pascal@23984 96 xchg ax,bx
pascal@23996 97 mov ax,4202h
pascal@23996 98 cwd
pascal@23996 99 xor cx,cx
pascal@23996 100 int 21h
pascal@23996 101 mov [word _isostate.filesize],ax
pascal@23996 102 mov [(word _isostate.filesize)+2],dx
pascal@23984 103 xchg ax,bx
pascal@23996 104 ;xor cx,cx
pascal@23996 105 cwd
pascal@23996 106 call seeksetpos0 ; filepos = 0
pascal@23996 107 xchg ax,bx ; fd
pascal@23996 108 openret:
pascal@23996 109 ret
pascal@20146 110
pascal@19538 111 ;***************************************************************
pascal@20630 112 ;_fastcall int open(bx:const char* name, int flags=O_RDONLY);
pascal@21757 113 ;_fastcall int openargs(bx:const char* name, int flags=O_RDONLY);
pascal@19515 114 ;***************************************************************
pascal@20538 115 global openargs:near ; openargs(bx)
pascal@20538 116 openargs:
pascal@20538 117 cmp [byte bx],'@'
pascal@20538 118 jne fail
pascal@20538 119 inc bx
pascal@20538 120
pascal@20528 121 global @open$qpxzc:near
pascal@23996 122 @open$qpxzc:
pascal@23996 123 mov ax,[_isostate.fd]
pascal@23996 124 or ax,ax
pascal@23996 125 je opendos
pascal@23996 126 openiso:
pascal@23996 127 ifdef ISOHOOK
pascal@23996 128 cmp [byte bx],'!'
pascal@23996 129 je @readmenu$qv
pascal@23996 130 endif
pascal@23996 131 extrn @_isoopen$qv:near
pascal@23996 132 mov [word _isostate.filename2open],bx
pascal@23996 133 jmp @_isoopen$qv ; filepos = 0
pascal@19515 134
pascal@19515 135
pascal@19515 136 ;***************************************************************
pascal@20632 137 ;_fastcall int fileexist(bx:const char* name);
pascal@20632 138 ;***************************************************************
pascal@20632 139 global @fileexist$qpxzc:near
pascal@20632 140 @fileexist$qpxzc:
pascal@20632 141 call @open$qpxzc
pascal@20632 142 jc fail
pascal@20632 143
pascal@20632 144 ;***************************************************************
pascal@20630 145 ;_fastcall int close(ax:int fd);
pascal@19515 146 ;***************************************************************
pascal@20528 147 global @close$qi:near
pascal@20528 148 proc @close$qi near
pascal@19515 149
pascal@20540 150 global close:near ; close(ax)
pascal@19515 151 close:
pascal@23985 152 mov bh,3Eh
pascal@23996 153 mov cx,[_isostate.fd]
pascal@23996 154 jcxz dosbx
pascal@23996 155 jmp fail
pascal@19515 156
pascal@20528 157 endp @close$qi
pascal@19515 158
pascal@19515 159
pascal@19515 160 ;***************************************************************
pascal@23996 161 ;_fastcall int readrm(si:struct himem *m, ax:int sz);
pascal@19515 162 ;***************************************************************
pascal@20751 163 global @readrm$qp11image_himemi:near
pascal@20751 164 @readrm$qp11image_himemi:
pascal@20751 165 xchg ax,dx ; sz
pascal@23996 166 mov ax,[si] ; fd
pascal@23996 167 mov bx,[si-2] ; data
pascal@20528 168 proc @read$qipvi near
pascal@19515 169
pascal@20632 170 @read$dxbxax:
pascal@20538 171 xchg ax,bx ; fd
pascal@23996 172 @read$dxaxbx:
pascal@20538 173 xchg ax,dx ; data
pascal@20538 174 xchg ax,cx ; sz
pascal@20528 175 global @read$cxdxbx:near
pascal@20528 176 @read$cxdxbx:
pascal@23996 177 push bx
pascal@23996 178 mov bx,offset _isostate.filepos
pascal@23996 179 push cx
pascal@23996 180 mov cx,[bx-4] ; filesize
pascal@23996 181 sub cx,[bx] ; filepos
pascal@23996 182 mov ax,[bx-2]
pascal@23996 183 sbb ax,[bx+2]
pascal@23996 184 pop ax
pascal@23996 185 ja @@axok
pascal@23996 186 ;je @@rem
pascal@23996 187 ;xor ax,ax
pascal@23996 188 @@rem:
pascal@23996 189 cmp cx,ax
pascal@23996 190 jb @@cxok
pascal@23996 191 @@axok:
pascal@23996 192 xchg ax,cx
pascal@23996 193 @@cxok:
pascal@23996 194 add [bx],cx
pascal@23996 195 adc [(word bx)+2],0
pascal@23996 196 pop bx
pascal@23996 197 readfd:
pascal@20146 198 mov ah,3Fh
pascal@23996 199 ;jcxz fail
pascal@21628 200 dos:
pascal@21628 201 int 21h
pascal@21628 202 jnc doret
pascal@21628 203 fail:
pascal@21628 204 stc
pascal@21628 205 failifc:
pascal@21628 206 sbb ax,ax ; ax=-1 CF
pascal@21628 207 doret:
pascal@21628 208 ret
pascal@19515 209
pascal@20528 210 endp @read$qipvi
pascal@19515 211
pascal@19515 212 ;***************************************************************
pascal@22632 213 ;_fastcall long rewind(ax:int fd);
pascal@19515 214 ;***************************************************************
pascal@19899 215
pascal@22632 216 global @rewind$qi:near ; fd=ax
pascal@22632 217 proc @rewind$qi near
pascal@20542 218
pascal@23996 219 rewind:
pascal@23996 220 mov bx,offset _isostate.fileofs
pascal@23996 221 jmp lseek
pascal@19515 222
pascal@22632 223 endp @rewind$qi
pascal@19825 224
pascal@23996 225
pascal@23996 226 ifdef ISOHOOK
pascal@23996 227 ;***************************************************************
pascal@23996 228 ;_fastcall void readmenu(void);
pascal@23996 229 ;***************************************************************
pascal@23996 230 proc @readmenu$qv near
pascal@23996 231
pascal@23996 232 mov dx,18
pascal@23996 233 xor cx,cx
pascal@23996 234 call seeksetpos0 ; filepos = 0
pascal@23996 235 mov dx,offset _isostate.filemod
pascal@23996 236 ; //magic = x->filemod;
pascal@23996 237 mov cl,10
pascal@23996 238 call readfd ; // read x->filemod + x->fileofs & x->filesize
pascal@23996 239 mov bx,offset _isostate.fileofs
pascal@23996 240 ; x->fileofs = 0x7FF0 - (x->filesize &= 0xFFFF);
pascal@23996 241 mov ax,7FF0h
pascal@23996 242 cwd
pascal@23996 243 mov [word bx+6],dx
pascal@23996 244 sub ax,[bx+4]
pascal@23996 245 mov [word bx+2],dx
pascal@23996 246 mov [bx],ax
pascal@23996 247 call isolseek ; filepos = 0
pascal@23996 248 xchg ax,bx ; fd
pascal@23996 249 ret
pascal@23996 250
pascal@23996 251 endp @readmenu$qv
pascal@23996 252 endif
pascal@23996 253
pascal@19825 254 ;***************************************************************
pascal@22749 255 ;_fastcall void isolseek(bx:const unsigned long *offset);
pascal@19825 256 ;***************************************************************
pascal@20528 257 global @isolseek$qpxul:near
pascal@20528 258 proc @isolseek$qpxul near
pascal@19825 259
pascal@20534 260 isolseek:
pascal@20632 261 mov ax,[_isostate.fd]
pascal@23996 262 lseek:
pascal@21984 263 les dx,[dword bx]
pascal@21984 264 mov cx,es
pascal@23996 265 seeksetpos0:
pascal@23996 266 xor bx,bx
pascal@23996 267 mov [word _isostate.filepos],bx
pascal@23996 268 mov [(word _isostate.filepos)+2],bx
pascal@23996 269 mov bh,42h ; bx=fd cx:dx=offset al=whence
pascal@23996 270 dosbx:
pascal@23996 271 xchg ax,bx
pascal@23996 272 jmp dos
pascal@20534 273
pascal@20538 274 endp @isolseek$qpxul
pascal@20534 275
pascal@20534 276 ;***************************************************************
pascal@20630 277 ;_fastcall int isoreadsector(bx:const unsigned long *offset);
pascal@23996 278 ;_fastcall int isoreadrootsector(void);
pascal@20534 279 ;***************************************************************
pascal@23996 280 global @isoreadrootsector$qv:near
pascal@23996 281 @isoreadrootsector$qv:
pascal@23996 282 mov bx,offset isorootofs
pascal@20534 283 global @isoreadsector$qpxul:near
pascal@20534 284 proc @isoreadsector$qpxul near
pascal@20534 285
pascal@23996 286 call isolseek ; filepos = 0
pascal@22749 287 jc fail
pascal@23996 288 mov dh,10
pascal@23996 289 mov ax,offset _isostate.buffer
pascal@23996 290 jmp @read$dxaxbx ; read(fd,buffer,2560+)
pascal@20534 291
pascal@20534 292 endp @isoreadsector$qpxul
pascal@20534 293
pascal@21628 294
pascal@21628 295 ;***************************************************************
pascal@23996 296 ;_fastcall int strhead(bx:const char* a, ax:const char* b);
pascal@21628 297 ;***************************************************************
pascal@23996 298 global @strhead$qpxzct1:near
pascal@23996 299 proc @strhead$qpxzct1 near
pascal@21628 300
pascal@23996 301 @@loop:
pascal@23996 302 xchg ax,bx
pascal@23996 303 mov dl,[bx] ; dl = *b++
pascal@23996 304 inc bx
pascal@23996 305 xchg ax,bx
pascal@23996 306 or dl,dl ; clear C
pascal@23996 307 jz failifc ; return 0
pascal@23996 308 xor dl,[bx] ; dl -= *a++
pascal@23996 309 jne fail ; return -1
pascal@23996 310 inc bx
pascal@23996 311 jmp @@loop
pascal@21628 312
pascal@23996 313 endp @strhead$qpxzct1
pascal@21628 314
pascal@21628 315
pascal@21628 316 ;***************************************************************
pascal@23996 317 ;_fastcall int strcmp(bx:const char* a, ax:const char* b);
pascal@21628 318 ;***************************************************************
pascal@23996 319 global @strcmp$qpxzct1:near
pascal@23996 320 proc @strcmp$qpxzct1 near
pascal@21628 321
pascal@23996 322 call @strhead$qpxzct1
pascal@23996 323 jne fail ; return -1
pascal@23996 324 xor dl,[bx] ; clear C
pascal@23996 325 jne fail ; return -1
pascal@23996 326 jmp failifc ; return 0
pascal@21628 327
pascal@23996 328 endp @strcmp$qpxzct1
pascal@21628 329
pascal@19515 330
pascal@20751 331 ;***************************************************************
pascal@23996 332 ;_fastcall const char **argstr(bx:const char *s, ax:const char keywords[], dx:const char **var);
pascal@23993 333 ;_fastcall unsigned long *argnum(bx:char *s, ax:const char keywords[], dx:unsigned long *var);
pascal@20751 334 ;***************************************************************
pascal@20751 335 global @argstr$qpxzcxt1ppxzc:near
pascal@20751 336 proc @argstr$qpxzcxt1ppxzc near
pascal@20751 337
pascal@21569 338 mov cl,2
pascal@21569 339 db 0a9h ; test ax,#
pascal@20751 340 global @argnum$qpzcxpxzcpul:near
pascal@20751 341 @argnum$qpzcxpxzcpul:
pascal@21569 342 mov cl,4
pascal@23993 343 push bx
pascal@21569 344 xchg ax,bx ; keywords -> bx
pascal@21569 345 xchg ax,cx ; s -> cx
pascal@21569 346 cbw ; argstr:0002 argnum:0004
pascal@21569 347 xchg ax,dx ; vars -> ax
pascal@20751 348 push si di
pascal@21569 349 xchg ax,di ; vars => di
pascal@20751 350 dec bx
pascal@20751 351 @@testalt:
pascal@20751 352 sub di,dx
pascal@23797 353 @@loop:
pascal@20751 354 mov si,cx ; s
pascal@20751 355 add di,dx
pascal@20751 356 @@match:
pascal@21569 357 inc bx ; keywords++
pascal@21569 358 lodsb ; *s++
pascal@20751 359 or al,20h
pascal@20751 360 cmp al,[bx]
pascal@20751 361 je @@match
pascal@20751 362 cmp al,'/' ; 2f
pascal@20751 363 jne @@notopt
pascal@20751 364 cmp [byte bx],'-'
pascal@20751 365 je @@match
pascal@20751 366 @@notopt:
pascal@20751 367 cmp [byte bx],'|'
pascal@20751 368 je @@test
pascal@23984 369 cmp [byte bx],dh
pascal@23797 370 je @@test
pascal@23797 371 mov al,-1
pascal@20751 372 inc bx
pascal@23797 373 jmp @@notopt
pascal@23797 374 @@test:
pascal@23797 375 or al,al ; 1st loop ?
pascal@23797 376 jns @@testal
pascal@23984 377 cmp [byte bx],dh
pascal@23797 378 jne @@loop
pascal@23797 379 @@testal:
pascal@23797 380 cmp al,'='
pascal@23797 381 ;je @@found
pascal@23797 382 ;cmp al,0 ; eos, si=next argv
pascal@23996 383 xchg ax,cx ; return s if failure
pascal@23797 384 jne @@nokeyword
pascal@20751 385 @@found:
pascal@20751 386 dec dx
pascal@20751 387 dec dx
pascal@20751 388 je @@done
pascal@20751 389 call @strtol$qpxzc
pascal@23993 390 xchg ax,si
pascal@20751 391 mov [di+2],dx
pascal@20751 392 @@done:
pascal@23993 393 mov [di],si
pascal@23993 394 xchg ax,di
pascal@20751 395 @@nokeyword:
pascal@23993 396 pop di si bx
pascal@20751 397 ret
pascal@20751 398
pascal@20751 399 endp @argstr$qpxzcxt1ppxzc
pascal@20751 400
pascal@23996 401 ;***************************************************************
pascal@23996 402 ;_fastcall void puts(bx:const char* s):
pascal@23996 403 ;***************************************************************
pascal@23996 404 global @puts$qpxzc:near
pascal@20751 405
pascal@23996 406 ; global puts:near ; puts(bx)
pascal@23996 407 @putsz:
pascal@23996 408 call @putc
pascal@23996 409 @puts$qpxzc:
pascal@23996 410 puts:
pascal@23996 411 mov dl,[bx]
pascal@23996 412 inc bx
pascal@23996 413 or dl,dl
pascal@23996 414 jne @putsz
pascal@23996 415 mov dl,10
pascal@23996 416 @putc:
pascal@23996 417 cmp dl,10
pascal@23996 418 jne @putcz
pascal@23996 419 call @putcz2
pascal@23996 420 @putcz2:
pascal@23996 421 xor dl,7 ; 10^13 1010^1101
pascal@23996 422 @putcz:
pascal@23996 423 mov ah,2
pascal@23996 424 do_int21h:
pascal@23996 425 int 21h
pascal@23996 426 ret
pascal@19515 427
pascal@19515 428
pascal@22152 429 include "himem.inc"
pascal@22152 430
pascal@19515 431 ;***************************************************************
pascal@20630 432 ;_fastcall char* malloc_or_die(ax:unsigned size);
pascal@19515 433 ;***************************************************************
pascal@21757 434 xchg_heap_top:
pascal@22668 435 xchg ax,[bx]
pascal@21757 436 ret
pascal@21757 437
pascal@20528 438 proc @malloc_or_die$qui near
pascal@19515 439
pascal@23996 440 malloc_or_die: ; ax = malloc_or_die(ax)
pascal@22668 441 extrn _heap_top
pascal@22668 442 mov bx,offset _heap_top
pascal@22668 443 add ax,[bx]
pascal@22668 444 jnc xchg_heap_top
pascal@20456 445 mov bx,offset msg_malloc
pascal@19515 446
pascal@20528 447 endp @malloc_or_die$qui
pascal@19515 448
pascal@19515 449
pascal@19515 450 ;***************************************************************
pascal@20630 451 ;_fastcall int die(bx:const char* msg);
pascal@22152 452 ;int exit(ax:int status);
pascal@22152 453 ;int abort(void);
pascal@19515 454 ;***************************************************************
pascal@20528 455 global @die$qpxzc:near
pascal@20528 456 proc @die$qpxzc near
pascal@20528 457 @die$qpxzc:
pascal@19515 458 global die:near ; die(bx)
pascal@19515 459 die:
pascal@19515 460 call puts
pascal@21984 461 global @exit$qv:near
pascal@21984 462 @exit$qv:
pascal@19538 463 _exit:
pascal@22152 464 extrn _imgs:image_himem
pascal@22152 465 mov cx,[(word _imgs.buf)+2] ; no_exit ?
pascal@21757 466 mov ah,4Ch
pascal@22152 467 jcxz do_int21h
pascal@19515 468 mov bx, offset msg_hang
pascal@19515 469 call puts
pascal@20486 470 ; global _abort:near
pascal@19515 471 _abort:
pascal@19515 472 cli
pascal@19515 473 hlt
pascal@20778 474 jmp _abort
pascal@19515 475
pascal@20528 476 endp @die$qpxzc
pascal@19515 477
pascal@22152 478 ;***************************************************************
pascal@23996 479 ;_fastcall void open_image(si:struct image_himem *m, ax:const char *name);
pascal@22152 480 ;***************************************************************
pascal@22152 481
pascal@23996 482 global @open_image$qp11image_himempxzc:near
pascal@23996 483 proc @open_image$qp11image_himempxzc near
pascal@23996 484
pascal@23996 485 mov [(image_himem si).state],ax
pascal@23996 486 push ax
pascal@23996 487 @@next:
pascal@23996 488 call next_chunk
pascal@23996 489 ifndef NO386
pascal@23996 490 add eax,3
pascal@23996 491 and al,0FCh
pascal@23996 492 add [(image_himem si).size],eax ; m->size += m->chunk_size
pascal@23996 493 or eax,eax
pascal@23996 494 else
pascal@23996 495 add ax,3
pascal@23996 496 adc dx,0
pascal@23996 497 and al,0FCh
pascal@23996 498 add [word (image_himem si).size],ax ; m->size += m->chunk_size
pascal@23996 499 adc [word ((image_himem si).size)+2],dx
pascal@23996 500 or ax,dx
pascal@23996 501 endif
pascal@23996 502 jnz @@next
pascal@23996 503 pop [(image_himem si).state]
pascal@23996 504
pascal@23996 505 endp @open_image$qp11image_himempxzc
pascal@22152 506
pascal@19515 507
pascal@19636 508 ;***************************************************************
pascal@23996 509 ;static long next_chunk(struct image_himem *si);
pascal@19636 510 ;***************************************************************
pascal@19636 511 proc next_chunk near
pascal@19636 512
pascal@23996 513 ifndef NO_CLOSE
pascal@23996 514 mov ax,[(image_himem si).fd]
pascal@19636 515 call close
pascal@23996 516 endif
pascal@19636 517 ifndef NO386
pascal@19636 518 xor eax,eax
pascal@19636 519 else
pascal@19636 520 xor ax,ax
pascal@20485 521 cwd
pascal@19636 522 endif
pascal@23996 523 mov [(image_himem si).fd],ax
pascal@23996 524 mov bx,[(image_himem si).state]
pascal@19636 525 cmp al,[bx] ; ""
pascal@19636 526 jz @@end
pascal@23996 527 dec bx
pascal@23996 528 push di
pascal@19636 529 @@scan:
pascal@23996 530 inc bx
pascal@23996 531 mov al,[bx]
pascal@23996 532 mov di,bx
pascal@23996 533 or al,al
pascal@19636 534 jz @@eos
pascal@23996 535 sub al,','
pascal@19636 536 jnz @@scan
pascal@23996 537 inc bx
pascal@19636 538 @@eos:
pascal@23996 539 xchg [(image_himem si).state],bx ; set start of string
pascal@23996 540 mov [current_file],bx
pascal@23996 541 xchg [di],ax ; set temp eos (ax == 0)
pascal@23996 542 push ax
pascal@23996 543 call @open$qpxzc
pascal@23996 544 pop [word di] ; restore string
pascal@23996 545 pop di
pascal@23996 546 jnc @@opened
pascal@23996 547 loadfailure:
pascal@23996 548 ;***************************************************************
pascal@23996 549 ;_fastcall void loadfailure(void);
pascal@23996 550 ;***************************************************************
pascal@23996 551 global @loadfailure$qv:near
pascal@23996 552 @loadfailure$qv:
pascal@23996 553 mov bx,0
pascal@23996 554 org $-2
pascal@23996 555 current_file dw ?
pascal@23996 556 call puts
pascal@23996 557 mov bx,offset loaderr
pascal@23996 558 jmpdie:
pascal@23996 559 jmp die
pascal@23996 560 @@opened:
pascal@23996 561 mov [(image_himem si).fd],ax
pascal@23996 562 ifndef NO_CLOSE
pascal@23996 563 mov [(image_himem si).fd2close],ax
pascal@23996 564 endif
pascal@19636 565 ifndef NO386
pascal@23996 566 mov eax,[_isostate.filesize]
pascal@19636 567 @@end:
pascal@23996 568 mov [(image_himem si).chunk_size],eax
pascal@19636 569 else
pascal@23996 570 mov ax,[word _isostate.filesize]
pascal@23996 571 mov dx,[(word _isostate.filesize)+2]
pascal@19636 572 @@end:
pascal@23996 573 mov [word (image_himem si).chunk_size],ax
pascal@23996 574 mov [word ((image_himem si).chunk_size)+2],dx
pascal@19636 575 endif
pascal@19636 576 ret
pascal@19636 577
pascal@19636 578 endp next_chunk
pascal@19636 579
pascal@23996 580 ;***************************************************************
pascal@19636 581
pascal@19571 582 ifdef LARGE_IMAGES
pascal@19571 583 struc data_himem ;struct data_himem {
pascal@19571 584 first dd ? ; 0 u32 first;
pascal@19571 585 cacheidx dw ? ; 4 int cacheidx;
pascal@19571 586 pageidx dw ? ; 6 int pageidx;
pascal@19571 587 cache dd 1024 dup(?) ; 8 int cache;
pascal@19571 588 page dd 1024 dup(?) ;4104 int page;
pascal@22007 589 ends data_himem ;}; // size=8200
pascal@19571 590 endif
pascal@19571 591
pascal@19515 592 ;***************************************************************
pascal@23992 593 ;_fastcall u32* malloc_bufv_or_die(si:struct image_himem *m);
pascal@19538 594 ;***************************************************************
pascal@20528 595 global @malloc_bufv_or_die$qp11image_himem:near
pascal@20528 596 proc @malloc_bufv_or_die$qp11image_himem near
pascal@19538 597
pascal@19636 598 p386
pascal@19538 599 push si
pascal@23992 600 mov bx,si
pascal@19571 601 ifdef LARGE_IMAGES
pascal@21777 602 movzx eax,[word ((image_himem si).size) + 2]
pascal@21777 603 shr ax,4 ; pages index size = size >> 20
pascal@21777 604 add ax,8+4096+8
pascal@19571 605 call malloc_or_die
pascal@20527 606 mov cx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
pascal@19571 607 add ecx,[(image_himem si).size]
pascal@19571 608 shr ecx,12
pascal@19571 609 mov [curdata],ax
pascal@19571 610 else
pascal@21777 611 mov eax,[(image_himem si).size]
pascal@21777 612 dec eax
pascal@21777 613 shr eax,12
pascal@21777 614 inc ax ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
pascal@21777 615 push ax
pascal@21777 616 inc ax ; cnt+1
pascal@21777 617 shl ax,2 ; bufv => vcpi => vm86
pascal@19538 618 ; our malloc zeroes allocated mem: bufv[cnt]=0;
pascal@19538 619 ; Allocate pages, storing addrs in addrbuf
pascal@19538 620 call malloc_or_die
pascal@19571 621 pop cx
pascal@19571 622 push ax
pascal@19571 623 endif
pascal@19546 624 mov [(image_himem si).bufv],ax
pascal@19571 625 xchg ax,si
pascal@19538 626 @@vcpi_alloc:
pascal@23996 627 mov ax,0DE04h ; allocate a 4K page => EDX
pascal@19538 628 int 67h
pascal@19538 629 or ah,ah
pascal@22176 630 stc
pascal@19538 631 mov bx,offset vcpi_alloc_err
pascal@23996 632 jnz jmpdie
pascal@19571 633 ; for (i = cnt-1; i >= 0; i--)
pascal@19571 634 ifdef LARGE_IMAGES
pascal@19571 635 mov eax,ecx
pascal@19571 636 dec eax
pascal@19571 637 else
pascal@19571 638 mov ax,cx
pascal@19571 639 dec ax
pascal@19571 640 cwde
pascal@19571 641 endif
pascal@19571 642 shl eax,12 ; i*_4k
pascal@19571 643 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
pascal@22152 644 mov bx,offset _imgs.fallback
pascal@19571 645 push eax
pascal@19571 646 add eax,[bx-2+2]
pascal@19571 647 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
pascal@19571 648 pop eax ; i*_4k
pascal@19571 649 jbe @@pmok
pascal@19571 650 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
pascal@19571 651 jae @@vcpi_alloc
pascal@19571 652 @@pmok:
pascal@19571 653 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
pascal@23996 654 add eax,[bx-2+2+32] ; +initrd.fallback
pascal@19571 655 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
pascal@19571 656 ja @@initrdok
pascal@23996 657 mov eax,[bx-2+6+32] ; initrd.size
pascal@23996 658 add eax,[bx-2+2+32] ; +initrd.fallback
pascal@19571 659 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
pascal@19571 660 @@jnc_vcpi_alloc:
pascal@19571 661 ja @@vcpi_alloc
pascal@19571 662 @@initrdok:
pascal@19571 663 ifdef LARGE_IMAGES
pascal@19571 664 cmp [(data_himem si).first],0
pascal@19571 665 jne @@notfirst
pascal@19571 666 mov [(data_himem si).first],edx
pascal@19571 667 @@notfirst:
pascal@19571 668 mov bx,[(data_himem si).cacheidx]
pascal@19571 669 cmp bh,4
pascal@19571 670 jae @@nextpage
pascal@19571 671 shl bx,2
pascal@19571 672 inc [(data_himem si).cacheidx]
pascal@19571 673 mov [(data_himem bx+si).cache],edx
pascal@19571 674 loopd @@vcpi_alloc
pascal@19571 675 mov [(data_himem bx+si).cache],ecx ; last is 0
pascal@19571 676 @@nextpage:
pascal@19571 677 and [(data_himem si).cacheidx],0
pascal@19571 678 mov bx,[(data_himem si).pageidx]
pascal@19571 679 mov [(data_himem bx+si).page],edx
pascal@19571 680 add [(data_himem si).pageidx],4
pascal@19571 681 push cx
pascal@19571 682 lea cx,[(data_himem si).cache]
pascal@19571 683 ifdef NO386
pascal@19571 684 push edx
pascal@23996 685 pop ax ; to dx:ax
pascal@19571 686 pop dx
pascal@19571 687 endif
pascal@19571 688 call storepage ; storepage(edx,cx)
pascal@19571 689 pop cx
pascal@19571 690 or ecx,ecx ; clear C
pascal@19571 691 jnz @@jnc_vcpi_alloc
pascal@19571 692 mov [dword (data_himem si).cacheidx],ecx
pascal@19571 693 xchg ax,si
pascal@19571 694 else
pascal@19571 695 mov [si],edx
pascal@19571 696 lodsd ; si=+4
pascal@19538 697 loop @@vcpi_alloc
pascal@19538 698 pop ax
pascal@19571 699 endif
pascal@19538 700 pop si
pascal@19538 701 ret
pascal@19636 702 ifdef NO386
pascal@19636 703 p8086
pascal@19636 704 endif
pascal@19538 705
pascal@20528 706 endp @malloc_bufv_or_die$qp11image_himem
pascal@19538 707
pascal@19538 708
pascal@19538 709 ;***************************************************************
pascal@20630 710 ;_fastcall void memcpy_image(bx:struct image_himem *m);
pascal@19515 711 ;***************************************************************
pascal@23992 712 global memcpy_image_initrd:near
pascal@23992 713 memcpy_image_initrd:
pascal@23992 714 lea bx,[si+32]
pascal@23992 715 db 0A9h ; test ax,imm
pascal@23992 716 global memcpy_image_kernel:near
pascal@23992 717 memcpy_image_kernel:
pascal@23992 718 mov bx,si
pascal@20528 719 proc @memcpy_image$qp11image_himem near
pascal@19515 720
pascal@19571 721 ifndef NO386
pascal@19571 722 mov edx,[(image_himem bx).fallback]
pascal@19571 723 mov eax,[(image_himem bx).buf]
pascal@19571 724 cmp eax,edx ; if (m->fallback != m->buf)
pascal@19571 725 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 726 ifdef LARGE_IMAGES
pascal@19571 727 mov ecx,[(image_himem bx).size]
pascal@20146 728 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19571 729 push ecx
pascal@19571 730 else
pascal@19571 731 push [(image_himem bx).size]
pascal@19571 732 endif
pascal@19571 733 push eax
pascal@19571 734 push 0
pascal@19571 735 call_memcpy32:
pascal@19571 736 push edx
pascal@19571 737 else
pascal@21984 738 les ax,[dword ((image_himem bx).fallback)]
pascal@21984 739 mov dx,es
pascal@19571 740 mov cx,[word ((image_himem bx).buf)]
pascal@19571 741 cmp ax,cx ; if (m->fallback != m->buf)
pascal@19571 742 jnz @@do
pascal@19571 743 cmp dx,[word ((image_himem bx).buf)+2]
pascal@19571 744 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 745 @@do:
pascal@19571 746 push [word ((image_himem bx).size)+2]
pascal@19571 747 push [word ((image_himem bx).size)]
pascal@19571 748 push [word ((image_himem bx).buf)+2]
pascal@19571 749 push cx
pascal@19571 750 xor cx,cx
pascal@19571 751 push cx
pascal@19571 752 call_memcpy32:
pascal@23996 753 push dx ; push dx:ax
pascal@19571 754 push ax
pascal@19571 755 ifdef LARGE_IMAGES
pascal@19571 756 jmp @@memcpy
pascal@20146 757 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19636 758 p386
pascal@19571 759 push ecx
pascal@19571 760 push eax
pascal@19571 761 push 0
pascal@19571 762 push edx
pascal@19636 763 ifdef NO386
pascal@19636 764 p8086
pascal@19636 765 endif
pascal@19571 766 endif
pascal@19571 767 endif
pascal@19571 768 @@memcpy:
pascal@20528 769 extrn memcpy32:near
pascal@20528 770 call near memcpy32
pascal@19571 771 @@skip:
pascal@19571 772 ret
pascal@19571 773
pascal@20528 774 endp @memcpy_image$qp11image_himem
pascal@19571 775
pascal@19571 776 ;***************************************************************
pascal@23992 777 ;_fastcall void storepage(di:u32 *dst);
pascal@19571 778 ;***************************************************************
pascal@20538 779 global @storepage$qpul:near
pascal@20538 780 proc @storepage$qpul near
pascal@19571 781
pascal@19571 782 ifndef NO386
pascal@23992 783 mov edx,[di]
pascal@19571 784 else
pascal@23992 785 les ax,[dword di]
pascal@23996 786 mov dx,es ; to dx:ax
pascal@19571 787 endif
pascal@20538 788 mov cx,offset _xfer_buf
pascal@20146 789 storepage: ; storepage(edx,cx)
pascal@19571 790 ifndef NO386
pascal@19571 791 push 0
pascal@19571 792 push 4096
pascal@19571 793 push 0
pascal@19571 794 else
pascal@19571 795 xor bx,bx
pascal@19571 796 push bx
pascal@19571 797 mov bh,4096/256
pascal@19571 798 push bx
pascal@19571 799 xor bx,bx
pascal@19571 800 push bx
pascal@19571 801 endif
pascal@19571 802 push cx
pascal@19571 803 push ds
pascal@19571 804 jmp call_memcpy32
pascal@19571 805
pascal@20538 806 endp @storepage$qpul
pascal@19571 807
pascal@19571 808
pascal@19571 809 ifdef LARGE_IMAGES
pascal@19636 810 p386
pascal@19571 811 ;***************************************************************
pascal@23992 812 ;_fastcall void reset_bufv(di:u32 *p);
pascal@19571 813 ;***************************************************************
pascal@20528 814 global @reset_bufv$qpul:near
pascal@20528 815 proc @reset_bufv$qpul near
pascal@19571 816
pascal@23992 817 mov [curdata],di
pascal@23992 818 and [dword (data_himem di).cacheidx],0
pascal@19571 819 ret
pascal@19571 820
pascal@20528 821 endp @reset_bufv$qpul
pascal@19571 822
pascal@19571 823 ;***************************************************************
pascal@23992 824 ;u32* di=prev_bufv();
pascal@23992 825 ;u32* di=prev_bufv();
pascal@19571 826 ;***************************************************************
pascal@19571 827 global _prev_bufv:near
pascal@19571 828 global _next_bufv:near
pascal@19571 829 proc _prev_bufv near
pascal@19571 830
pascal@19571 831 stc
pascal@19571 832 db 73h ; jnc
pascal@19571 833 _next_bufv:
pascal@19571 834 clc
pascal@23992 835 mov bx,0
pascal@22176 836 org $-2
pascal@22176 837 curdata dw ?
pascal@19571 838 sbb ax,ax
pascal@20527 839 cmc
pascal@23992 840 adc ax,[(data_himem bx).cacheidx] ; -1/+1
pascal@19571 841 xor ecx,ecx
pascal@19571 842 test ax,0fc00h
pascal@19571 843 jz @@gotpage
pascal@19571 844 push ax ; FFFF / 0400
pascal@19571 845 sar ax,8 ; FFFC / 0004
pascal@19571 846 and al,0fch
pascal@23992 847 add [(data_himem bx).pageidx],ax
pascal@23992 848 mov di,[(data_himem bx).pageidx]
pascal@23992 849 lea di,[(data_himem bx+di).page]
pascal@19571 850 mov edx,ds
pascal@19571 851 shl edx,4
pascal@23992 852 lea cx,[(data_himem bx).cache]
pascal@19571 853 add edx,ecx
pascal@23992 854 mov eax,[di]
pascal@19571 855 or eax,eax
pascal@19571 856 jnz @@pageok
pascal@19571 857 pop ax
pascal@19571 858 ret
pascal@19571 859 @@pageok:
pascal@19571 860 mov cx,4096
pascal@19571 861 call memcpy_imagez ; get page
pascal@19571 862 pop ax ; FFFF / 0400
pascal@19571 863 cbw
pascal@19571 864 shr ax,6 ; 03FF / 0000
pascal@19571 865 @@gotpage:
pascal@23992 866 mov [(data_himem bx).cacheidx],ax
pascal@19571 867 shl ax,2
pascal@23992 868 xchg ax,di
pascal@23992 869 lea ax,[(data_himem bx+di).cache]
pascal@23992 870 or di,[(data_himem bx).pageidx] ; !pageidx && !cacheidx
pascal@19571 871 jnz @@notfirst2
pascal@23992 872 xchg ax,bx ; &first
pascal@19571 873 @@notfirst2:
pascal@23992 874 xchg ax,di
pascal@19571 875 ret
pascal@19571 876
pascal@19571 877 endp _prev_bufv
pascal@19571 878 endif
pascal@19571 879
pascal@20146 880 ifdef NO386
pascal@20146 881 p8086
pascal@20146 882 endif
pascal@19571 883
pascal@19571 884 ;***************************************************************
pascal@23996 885 ;_fastcall int read_image(si:struct image_himem *m);
pascal@19515 886 ;***************************************************************
pascal@20538 887 global @read_image$qp11image_himem:near
pascal@20538 888 proc @read_image$qp11image_himem near
pascal@19515 889
pascal@23996 890 push di
pascal@23996 891 mov di,4096
pascal@23996 892 push di ; original size
pascal@19515 893 @@loop:
pascal@19538 894 ifndef NO386
pascal@23996 895 movzx ecx,di
pascal@23996 896 mov eax,[(image_himem si).chunk_size]
pascal@19538 897 cmp ecx,eax
pascal@19538 898 jb @@szok
pascal@19538 899 else
pascal@23996 900 mov cx,di
pascal@23996 901 mov ax,[word (image_himem si).chunk_size]
pascal@19538 902 cmp cx,ax
pascal@19515 903 jb @@szok
pascal@23996 904 cmp [word ((image_himem si).chunk_size)+2],0 ; hi m->chunk_size
pascal@19515 905 jne @@szok
pascal@20484 906 endif
pascal@19515 907 xchg ax,cx
pascal@19515 908 @@szok:
pascal@19538 909 jcxz image_done
pascal@20778 910 mov dx,offset _xfer_buf+4096
pascal@23996 911 sub dx,di
pascal@23996 912 mov bx,[si]
pascal@20528 913 call @read$cxdxbx
pascal@23806 914 jb image_done
pascal@19515 915 xor cx,cx
pascal@20539 916 cwd ; ax < 8000h
pascal@19538 917 ifndef NO386
pascal@19538 918 cwde ; ax < 8000h
pascal@23996 919 sub [(image_himem si).chunk_size],eax
pascal@20541 920 xchg eax,ebx
pascal@19538 921 else
pascal@23996 922 sub [word (image_himem si).chunk_size],ax
pascal@20539 923 xchg ax,bx
pascal@23996 924 sbb [word ((image_himem si).chunk_size)+2],dx
pascal@19538 925 jnz @@fill
pascal@23996 926 cmp [word (image_himem si).chunk_size],dx
pascal@19538 927 endif
pascal@19538 928 jnz @@fill
pascal@20539 929 dec cx
pascal@19515 930 @@fill:
pascal@20539 931 test bl,3
pascal@19515 932 je @@filled
pascal@20539 933 mov [bx+_xfer_buf],dh
pascal@20539 934 inc bx
pascal@19515 935 jmp @@fill
pascal@19515 936 @@filled:
pascal@19538 937 ifndef NO386
pascal@23996 938 sub [(image_himem si).remaining],ebx
pascal@19538 939 else
pascal@23996 940 sub [word (image_himem si).remaining],bx
pascal@23996 941 sbb [word ((image_himem si).remaining)+2],dx
pascal@19538 942 endif
pascal@23996 943 sub di,bx
pascal@19538 944 pushf
pascal@20778 945 jcxz @@same_chunk
pascal@20778 946 call next_chunk
pascal@19538 947 @@same_chunk:
pascal@19538 948 popf
pascal@19538 949 jnz @@loop
pascal@20484 950 image_done:
pascal@20528 951 pop ax ; original size
pascal@23996 952 sub ax,di
pascal@23996 953 pop di
pascal@20538 954 ret
pascal@19515 955
pascal@20538 956 endp @read_image$qp11image_himem
pascal@19515 957
pascal@19515 958
pascal@19515 959 ;***************************************************************
pascal@21569 960 ;_fastcall unsigned long strtol(const char *s);
pascal@19515 961 ;***************************************************************
pascal@20528 962 proc @strtol$qpxzc near
pascal@19515 963
pascal@20528 964 ifndef NO386
pascal@19515 965 xor ecx,ecx
pascal@19515 966 xor eax,eax
pascal@21569 967 xor ebx,ebx
pascal@19515 968 lodsb
pascal@19634 969 or al,20h
pascal@21984 970 cmp al,'a'
pascal@21984 971 jb @@notvga
pascal@23869 972 sub al,'o'
pascal@21984 973 @@vgaloop:
pascal@19538 974 dec cx
pascal@21984 975 add al,6
pascal@23869 976 jnb @@vgaloop ; vga=normal,extended,ask
pascal@19538 977 @@vga:
pascal@19538 978 dec cx
pascal@19538 979 xchg ax,cx
pascal@19538 980 cwd
pascal@19634 981 jmp @@popsiret
pascal@19538 982 @@notvga:
pascal@22632 983 mov cl,10 ; radix
pascal@19515 984 cmp al,'-'
pascal@23868 985 jne @@radixkeep
pascal@19515 986 lodsb
pascal@19515 987 @@radixkeep:
pascal@19515 988 pushf
pascal@19515 989 cmp al,'0'
pascal@19515 990 jne @@radixok
pascal@19515 991 mov cl,8
pascal@19515 992 lodsb
pascal@19634 993 or al,20h
pascal@19634 994 cmp al,'x'
pascal@19515 995 jne @@radixok
pascal@19515 996 mov cl,16
pascal@19515 997 @@strtollp:
pascal@19515 998 lodsb
pascal@19515 999 @@radixok:
pascal@19634 1000 or al,20h
pascal@19515 1001 sub al,'0'
pascal@19515 1002 jb @@endstrtol
pascal@19515 1003 cmp al,9
pascal@19515 1004 jbe @@digitok
pascal@19515 1005 cmp al,'a'-'0'
pascal@19515 1006 jb @@endstrtol
pascal@19515 1007 sub al,'a'-'0'-10
pascal@19515 1008 @@digitok:
pascal@19515 1009 cmp al,cl
pascal@19515 1010 jae @@endstrtol
pascal@23870 1011 cbw
pascal@23870 1012 cwde
pascal@19515 1013 xchg eax,ebx
pascal@19515 1014 mul ecx
pascal@23870 1015 add ebx,eax
pascal@19515 1016 jmp @@strtollp
pascal@19515 1017 @@endstrtol:
pascal@19515 1018 mov cl,10
pascal@19515 1019 cmp al,'k'-'a'+10
pascal@19515 1020 je @@shift
pascal@19515 1021 mov cl,20
pascal@19515 1022 cmp al,'m'-'a'+10
pascal@19515 1023 je @@shift
pascal@19515 1024 mov cl,30
pascal@19515 1025 cmp al,'g'-'a'+10
pascal@19515 1026 jne @@noshift
pascal@19515 1027 @@shift:
pascal@19515 1028 shl ebx,cl
pascal@19515 1029 @@noshift:
pascal@19515 1030 popf
pascal@19515 1031 jnc @@end
pascal@19515 1032 neg ebx
pascal@19515 1033 @@end:
pascal@19515 1034 push ebx
pascal@19515 1035 pop ax
pascal@19515 1036 pop dx
pascal@19634 1037 @@popsiret:
pascal@19515 1038 else
pascal@23868 1039 xor bx,bx
pascal@22632 1040 xor cx,cx
pascal@23870 1041 xor dx,dx
pascal@19538 1042 lodsb
pascal@19634 1043 or al,20h
pascal@21984 1044 cmp al,'a'
pascal@21984 1045 jb @@notvga
pascal@23869 1046 sub al,'o'
pascal@21984 1047 @@vgaloop:
pascal@19538 1048 dec cx
pascal@21984 1049 add al,6
pascal@23869 1050 jnb @@vgaloop ; vga=normal,extended,ask
pascal@19538 1051 @@vga:
pascal@19538 1052 xchg ax,cx
pascal@23869 1053 ;cwd
pascal@23983 1054 jmp @@end
pascal@19538 1055 @@notvga:
pascal@22632 1056 mov cl,10 ; radix
pascal@19515 1057 cmp al,'-'
pascal@23868 1058 jne @@radixkeep
pascal@19515 1059 lodsb
pascal@19515 1060 @@radixkeep:
pascal@19515 1061 pushf
pascal@19515 1062 cmp al,'0'
pascal@19515 1063 jne @@radixok
pascal@19515 1064 mov cl,8
pascal@19515 1065 lodsb
pascal@20146 1066 or al,20h
pascal@19634 1067 cmp al,'x'
pascal@19515 1068 jne @@radixok
pascal@19515 1069 mov cl,16
pascal@19515 1070 @@strtollp:
pascal@19515 1071 lodsb
pascal@19515 1072 @@radixok:
pascal@19634 1073 or al,20h
pascal@19515 1074 sub al,'0'
pascal@19515 1075 jb @@endstrtol
pascal@19515 1076 cmp al,9
pascal@19515 1077 jbe @@digitok
pascal@19515 1078 cmp al,'a'-'0'
pascal@19515 1079 jb @@endstrtol
pascal@19515 1080 sub al,'a'-'0'-10
pascal@19515 1081 @@digitok:
pascal@19515 1082 cmp al,cl
pascal@19515 1083 jae @@endstrtol
pascal@23870 1084 cbw
pascal@19515 1085
pascal@19515 1086 push ax
pascal@23870 1087 xchg ax,dx
pascal@23870 1088 mul cx
pascal@21984 1089 xchg ax,bx
pascal@21984 1090 mul cx
pascal@23870 1091 add dx,bx
pascal@23870 1092 pop bx
pascal@21984 1093 add bx,ax
pascal@19515 1094 adc dx,0
pascal@19515 1095
pascal@19515 1096 jmp @@strtollp
pascal@19515 1097 @@endstrtol:
pascal@19515 1098 mov cl,10
pascal@19515 1099 cmp al,'k'-'a'+10
pascal@19515 1100 je @@shift
pascal@19515 1101 mov cl,20
pascal@19515 1102 cmp al,'m'-'a'+10
pascal@19515 1103 je @@shift
pascal@19515 1104 mov cl,30
pascal@19515 1105 cmp al,'g'-'a'+10
pascal@23983 1106 @@shift:
pascal@23983 1107 xchg ax,bx
pascal@19515 1108 jne @@noshift
pascal@23983 1109 extrn N_LXLSH@:near
pascal@23983 1110 call N_LXLSH@
pascal@19515 1111 @@noshift:
pascal@19515 1112 popf
pascal@23868 1113 jne @@end
pascal@19515 1114 not dx
pascal@23983 1115 neg ax
pascal@19515 1116 jne @@end
pascal@19515 1117 inc dx
pascal@19515 1118 @@end:
pascal@19515 1119 endif
pascal@20528 1120 strtol_ret:
pascal@19515 1121 ret
pascal@19515 1122
pascal@20528 1123 endp @strtol$qpxzc
pascal@19515 1124
pascal@19515 1125
pascal@19515 1126 ends _TEXT
pascal@19515 1127
pascal@19515 1128 end
pascal@19515 1129
pascal@19515 1130 ;###### END OF FILE ############################################
pascal@19825 1131