wok annotate linld/stuff/src/CRTL.ASM @ rev 22676

updated drbd-utils again (8.9.1 -> 9.11.0)
author Pascal Bellard <pascal.bellard@slitaz.org>
date Sat Jan 18 11:42:51 2020 +0100 (2020-01-18)
parents 08c52f1e528e
children 526e82fe0471
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@22676 20 msg_hang db "High mem corrupted",0
pascal@22668 21 vcpi_alloc_err db "VCPI"
pascal@22668 22 global overflow:byte
pascal@22668 23 overflow db "/"
pascal@22668 24 msg_malloc db "Out of memory",0
pascal@19825 25 ifdef EXTRA
pascal@19825 26 tazboot_cmd db "tazboot.cmd",0
pascal@19825 27 endif
pascal@19515 28
pascal@19515 29 ends _DATA
pascal@19515 30
pascal@19515 31 segment _BSS byte public use16 'BSS'
pascal@19515 32
pascal@21747 33 ifdef EXTRA
pascal@21747 34 ;typedef unsigned dirsizetype;
pascal@21747 35 struc isostate ; struct isostate {
pascal@21754 36 curpos dw ? ; 0 unsigned curpos;
pascal@21754 37 filename2open dw ? ; 2 char *filename2open;
pascal@21754 38 fd dw ? ; 4 int fd;
pascal@21754 39 filemod dw ? ; 6 unsigned short filemod;
pascal@21754 40 fileofs dd ? ; 8 unsigned long fileofs;
pascal@21754 41 filesize dd ? ;12 unsigned long filesize;
pascal@21754 42 filename dw ? ;16 char *filename;
pascal@21754 43 curdirsize dw ? ;18 dirsizetype curdirsize;
pascal@21754 44 dirsize dw ? ;20 dirsizetype dirsize;
pascal@21754 45 curdirofs dd ? ;22 unsigned long curdirofs;
pascal@21754 46 dirofs dd ? ;26 unsigned long dirofs;
pascal@21754 47 ;overlap
pascal@21747 48 entrysize dw ? ;30 int entrysize;
pascal@21747 49 tmp dw ? ;32 const char *tmp;
pascal@21754 50 c db ? ;34 char c;
pascal@21754 51 _64bits db ? ;35 char _64bits;
pascal@21754 52 buffer db ? ;36 char buffer[2048+512];
pascal@22007 53 ends isostate ; } isostate;
pascal@21747 54 public _isostate
pascal@21747 55 _isostate isostate <?>
pascal@21754 56 org $-7
pascal@21747 57 endif
pascal@20538 58 _xfer_buf db 4096 dup (?)
pascal@19515 59 filecnt db ? ; in fact 0 minus file count...
pascal@19515 60 nextfilename dw ?
pascal@19825 61 ifdef EXTRA
pascal@19825 62 ultoabuf db 12 dup (?)
pascal@19825 63 endif
pascal@19515 64
pascal@19515 65 ends _BSS
pascal@19515 66
pascal@19515 67 segment _TEXT byte public use16 'CODE'
pascal@19515 68
pascal@19515 69 ;***************************************************************
pascal@20630 70 ;_fastcall void strcpy(bx:const char* a, ax:const char* b);
pascal@20630 71 ;_fastcall void strcat(bx:const char* a, ax:const char* b);
pascal@20630 72 ;_fastcall void strcatb(bx:const char* a, ax:const char* b);
pascal@19538 73 ;***************************************************************
pascal@20793 74 ifdef EXTRA
pascal@20793 75 global @strcat$qpxzct1:near
pascal@20793 76 @strcat$qpxzct1:
pascal@20793 77 mov cx,1h
pascal@20793 78 db 0bah ; mov dx,imm opcode
pascal@20793 79 endif
pascal@20528 80 global @strcatb$qpxzct1:near
pascal@20528 81 proc @strcatb$qpxzct1 near
pascal@19538 82
pascal@20142 83 mov cl,7Fh
pascal@20539 84 db 0bah ; mov dx,imm opcode
pascal@20528 85 global @strcpy$qpxzct1:near
pascal@20528 86 @strcpy$qpxzct1:
pascal@20142 87 xor cx,cx
pascal@19538 88 push si
pascal@20794 89 xchg ax,si ; b
pascal@20142 90 jcxz @@nocat
pascal@20794 91 dec bx
pascal@19538 92 @@catlp:
pascal@20794 93 inc bx
pascal@20794 94 cmp [byte bx],0 ; a=bx
pascal@19538 95 jne @@catlp
pascal@20794 96 ifdef EXTRA
pascal@20793 97 mov al,20h
pascal@20793 98 loop @@cpyhead
pascal@20778 99 else
pascal@20794 100 db 0b8h,20h ; mov ax,??20h
pascal@19826 101 endif
pascal@19538 102 @@nocat:
pascal@19538 103 @@cpylp:
pascal@20794 104 lodsb
pascal@20794 105 @@cpyhead:
pascal@20794 106 mov [bx],al
pascal@20142 107 inc bx
pascal@20527 108 or al,al
pascal@19538 109 jne @@cpylp
pascal@20142 110 strfound:
pascal@20142 111 xchg ax,dx
pascal@20142 112 strend:
pascal@19538 113 pop si
pascal@20142 114 ret
pascal@19538 115
pascal@20528 116 endp @strcatb$qpxzct1
pascal@19538 117
pascal@19538 118
pascal@20146 119 ifdef EXTRA
pascal@20146 120 p8086
pascal@20146 121 ;***************************************************************
pascal@20778 122 ;_fastcall int strstr(bx:const char* a, ax:const char* b);
pascal@20146 123 ;***************************************************************
pascal@20528 124 global @strstr$qpxzct1:near
pascal@20528 125 proc @strstr$qpxzct1 near
pascal@20146 126
pascal@20538 127 xchg ax,cx ; b
pascal@20538 128 mov dx,bx ; a
pascal@20146 129 push si
pascal@20146 130 @@loop:
pascal@20146 131 xor ax,ax
pascal@20146 132 mov si,dx
pascal@20146 133 cmp [si],al ; *a
pascal@20146 134 jz strend ; return ax = NULL
pascal@20146 135 mov bx,cx
pascal@20146 136 @@match:
pascal@20146 137 or ah,[bx] ; *b
pascal@20146 138 jz strfound
pascal@20146 139 inc bx
pascal@20146 140 lodsb
pascal@20146 141 sub ah,al
pascal@20146 142 jz @@match
pascal@20146 143 inc dx
pascal@20146 144 jmp @@loop
pascal@20146 145
pascal@20528 146 endp @strstr$qpxzct1
pascal@20146 147
pascal@20146 148
pascal@20146 149 ;***************************************************************
pascal@20630 150 ;_fastcall int strcmp(bx:const char* a, ax:const char* b);
pascal@20146 151 ;***************************************************************
pascal@20528 152 global @strcmp$qpxzct1:near
pascal@20528 153 proc @strcmp$qpxzct1 near
pascal@20146 154
pascal@20146 155 push si
pascal@20146 156 xchg ax,si
pascal@20146 157 dec bx
pascal@20146 158 @@lp:
pascal@20146 159 inc bx
pascal@20146 160 lodsb
pascal@20146 161 sub al,[bx]
pascal@20146 162 jnz @@out
pascal@20630 163 or al,[bx]
pascal@20146 164 jnz @@lp
pascal@20146 165 @@out:
pascal@20146 166 cbw
pascal@20146 167 pop si
pascal@20146 168 ret
pascal@20146 169
pascal@20528 170 endp @strcmp$qpxzct1
pascal@20146 171 endif
pascal@20146 172
pascal@20146 173
pascal@19538 174 ;***************************************************************
pascal@20630 175 ;_fastcall int open(bx:const char* name, int flags=O_RDONLY);
pascal@21757 176 ;_fastcall int openargs(bx:const char* name, int flags=O_RDONLY);
pascal@19515 177 ;***************************************************************
pascal@20538 178 global openargs:near ; openargs(bx)
pascal@20538 179 openargs:
pascal@20538 180 cmp [byte bx],'@'
pascal@20538 181 jne fail
pascal@20538 182 inc bx
pascal@20538 183
pascal@20528 184 global @open$qpxzc:near
pascal@20528 185 proc @open$qpxzc near
pascal@19515 186
pascal@21998 187 open: ; open(bx)
pascal@20630 188 ifdef LONG_FILENAME
pascal@20630 189 mov ax,716Ch
pascal@22668 190 push bx si
pascal@20630 191 mov si,bx
pascal@20630 192 xor bx,bx ; R/O
pascal@20630 193 xor cx,cx ; attributes
pascal@20630 194 cwd ; action = open
pascal@20634 195 stc
pascal@20630 196 int 21h
pascal@22668 197 pop si bx
pascal@20630 198 jnc doret
pascal@20630 199 endif
pascal@20538 200 mov ax,3d00h ; read-only+compatibility
pascal@20538 201 ;mov cl,0 ; attribute mask
pascal@19515 202 mov dx,bx
pascal@21628 203 jmp dos
pascal@19515 204
pascal@20528 205 endp @open$qpxzc
pascal@19515 206
pascal@19515 207
pascal@19515 208 ;***************************************************************
pascal@20632 209 ;_fastcall int fileexist(bx:const char* name);
pascal@20632 210 ;***************************************************************
pascal@20632 211 global @fileexist$qpxzc:near
pascal@20632 212 @fileexist$qpxzc:
pascal@20632 213 call @open$qpxzc
pascal@20632 214 jc fail
pascal@20632 215
pascal@20632 216 ;***************************************************************
pascal@20630 217 ;_fastcall int close(ax:int fd);
pascal@19515 218 ;***************************************************************
pascal@20528 219 global @close$qi:near
pascal@20528 220 proc @close$qi near
pascal@19515 221
pascal@20540 222 global close:near ; close(ax)
pascal@19515 223 close:
pascal@20540 224 xchg ax,bx
pascal@19515 225 mov ah,3Eh
pascal@19515 226 or bx,bx
pascal@19515 227 jnz dos
pascal@19515 228 ret
pascal@19515 229
pascal@20528 230 endp @close$qi
pascal@19515 231
pascal@19515 232
pascal@19515 233 ;***************************************************************
pascal@20751 234 ;_fastcall int readrm(bx:struct himem *m, ax:int sz);
pascal@20630 235 ;_fastcall int read(ax:int fd, bx:void* data, dx:int sz);
pascal@20630 236 ;_fastcall int write(ax:int fd, bx:const void* data, dx:int sz);
pascal@19515 237 ;***************************************************************
pascal@20751 238 global @readrm$qp11image_himemi:near
pascal@20751 239 @readrm$qp11image_himemi:
pascal@20751 240 xchg ax,dx ; sz
pascal@20751 241 mov ax,[bx] ; fd
pascal@20751 242 mov bx,[bx-2] ; data
pascal@20528 243 global @read$qipvi:near
pascal@20528 244 proc @read$qipvi near
pascal@19515 245
pascal@20146 246 ifdef WRITE
pascal@19580 247 stc
pascal@19634 248 db 0B0h ; mov al,im
pascal@20528 249 global @write$qipvi:near
pascal@20528 250 @write$qipvi:
pascal@19580 251 clc
pascal@20146 252 endif
pascal@20632 253 @read$dxbxax:
pascal@20538 254 xchg ax,bx ; fd
pascal@20538 255 xchg ax,dx ; data
pascal@20538 256 xchg ax,cx ; sz
pascal@20146 257 ifdef WRITE
pascal@19580 258 mov ah,40h
pascal@19580 259 sbb ah,0
pascal@20146 260 else
pascal@20528 261 global @read$cxdxbx:near
pascal@20528 262 @read$cxdxbx:
pascal@20146 263 mov ah,3Fh
pascal@20146 264 endif
pascal@19515 265 jcxz fail
pascal@21628 266 dos:
pascal@21628 267 int 21h
pascal@21628 268 chkc:
pascal@21628 269 jnc doret
pascal@21628 270 fail:
pascal@21628 271 stc
pascal@21628 272 failifc:
pascal@21628 273 sbb ax,ax ; ax=-1 CF
pascal@21628 274 cwd
pascal@21628 275 doret:
pascal@21628 276 ifndef NO386
pascal@21628 277 push dx ; see next_chunk:lseek
pascal@21628 278 push ax
pascal@21628 279 pop eax
pascal@21628 280 endif
pascal@21628 281 ret
pascal@19515 282
pascal@20528 283 endp @read$qipvi
pascal@19515 284
pascal@19515 285 ;***************************************************************
pascal@22632 286 ;_fastcall long rewind(ax:int fd);
pascal@19515 287 ;***************************************************************
pascal@19899 288
pascal@22632 289 global @rewind$qi:near ; fd=ax
pascal@22632 290 proc @rewind$qi near
pascal@20542 291
pascal@22676 292 ifdef EXTRA
pascal@22676 293 xchg ax,bx ; catch ISO image case
pascal@22676 294 mov cx,-512 ; curpos = 512
pascal@22676 295 stc ; see LOAD.CPP
pascal@22676 296 mov bl,2
pascal@22676 297 jmp lseekword
pascal@22676 298 endif
pascal@20542 299 rewind: ; rewind(ax)
pascal@20542 300 mov bl,0
pascal@20632 301 lseek0: ; lseek0(ax,bl=dir)
pascal@22676 302 xor cx,cx ; clear C
pascal@22676 303 lseekword:
pascal@22676 304 sbb dx,dx
pascal@20632 305 lseekset:
pascal@20542 306 xchg ax,bx
pascal@20542 307 lseek:
pascal@20548 308 mov ah,42h ; bx=fd cx:dx=offset al=whence
pascal@19515 309 jmp dos
pascal@19515 310
pascal@22632 311 endp @rewind$qi
pascal@19825 312
pascal@20538 313 ifdef EXTRA
pascal@19825 314 ;***************************************************************
pascal@20630 315 ;_fastcall long isolseek(bx:const unsigned long *offset);
pascal@22632 316 ;_fastcall long lseekset2(ax:int fd, bx:unsigned long* offset);
pascal@19825 317 ;***************************************************************
pascal@20528 318 global @isolseek$qpxul:near
pascal@20528 319 proc @isolseek$qpxul near
pascal@19825 320
pascal@20534 321 isolseek:
pascal@20632 322 mov ax,[_isostate.fd]
pascal@20634 323 global @lseekset2$qipul:near
pascal@20632 324 @lseekset2$qipul:
pascal@21984 325 les dx,[dword bx]
pascal@21984 326 mov cx,es
pascal@20632 327 mov bl,0
pascal@20538 328 jmp lseekset
pascal@20534 329
pascal@20538 330 endp @isolseek$qpxul
pascal@20534 331
pascal@20534 332 ;***************************************************************
pascal@20630 333 ;_fastcall int isoreadsector(bx:const unsigned long *offset);
pascal@20534 334 ;***************************************************************
pascal@20534 335 global @isoreadsector$qpxul:near
pascal@20534 336 proc @isoreadsector$qpxul near
pascal@20534 337
pascal@20534 338 call isolseek
pascal@20632 339 jc doret
pascal@20632 340 mov dx,2560
pascal@21754 341 mov bx,offset _isostate.buffer
pascal@20632 342 mov ax,[_isostate.fd]
pascal@20632 343 jmp @read$dxbxax ; read(fd,buffer,2560)
pascal@20534 344
pascal@20534 345 endp @isoreadsector$qpxul
pascal@20534 346
pascal@21628 347
pascal@21628 348 ;***************************************************************
pascal@21628 349 ;_fastcall int isoreset(bx:const char *name);
pascal@21628 350 ;***************************************************************
pascal@21628 351 global @isoreset$qpzc:near
pascal@21628 352 proc @isoreset$qpzc near
pascal@21628 353
pascal@21628 354 or bx,bx
pascal@21628 355 jz fail
pascal@21628 356 call near ptr @open$qpxzc
pascal@21628 357 mov [_isostate.fd],ax
pascal@21628 358 extrn @isoroot$qv:near
pascal@21628 359 jmp @isoroot$qv
pascal@21628 360
pascal@21628 361 endp @isoreset$qpzc
pascal@21628 362
pascal@21628 363
pascal@21628 364 ;***************************************************************
pascal@21628 365 ;_fastcall int isoopen(bx:const char *name);
pascal@21628 366 ;***************************************************************
pascal@21628 367 global @isoopen$qpxzc:near
pascal@21628 368 proc @isoopen$qpxzc near
pascal@21628 369
pascal@21628 370 extrn @_isoopen$qv:near
pascal@21628 371 mov [_isostate.filename2open],bx
pascal@21628 372 jmp @_isoopen$qv
pascal@21628 373
pascal@21628 374 endp @isoopen$qpxzc
pascal@21628 375
pascal@19825 376 endif
pascal@19515 377
pascal@19515 378
pascal@20751 379 ifdef USE_ARGSTR
pascal@20751 380 ;***************************************************************
pascal@20751 381 ;_fastcall int argstr(bx:const char *s, ax:const char keywords[], dx:const char **var);
pascal@20751 382 ;_fastcall int argnum(bx:char *s, ax:const char keywords[], dx:unsigned long *var);
pascal@20751 383 ;***************************************************************
pascal@20751 384 global @argstr$qpxzcxt1ppxzc:near
pascal@20751 385 proc @argstr$qpxzcxt1ppxzc near
pascal@20751 386
pascal@21569 387 mov cl,2
pascal@21569 388 db 0a9h ; test ax,#
pascal@20751 389 global @argnum$qpzcxpxzcpul:near
pascal@20751 390 @argnum$qpzcxpxzcpul:
pascal@21569 391 mov cl,4
pascal@21569 392 xchg ax,bx ; keywords -> bx
pascal@21569 393 xchg ax,cx ; s -> cx
pascal@21569 394 cbw ; argstr:0002 argnum:0004
pascal@21569 395 xchg ax,dx ; vars -> ax
pascal@20751 396 push si di
pascal@21569 397 xchg ax,di ; vars => di
pascal@20751 398 dec bx
pascal@20751 399 @@testalt:
pascal@21569 400 mov al,-1
pascal@20751 401 sub di,dx
pascal@20751 402 @@test:
pascal@20751 403 cmp al,'='
pascal@20751 404 je @@found
pascal@21569 405 cmp al,0 ; eos, si=next argv
pascal@21569 406 je @@found
pascal@20751 407 mov si,cx ; s
pascal@20751 408 add di,dx
pascal@20751 409 @@match:
pascal@21569 410 inc bx ; keywords++
pascal@21569 411 lodsb ; *s++
pascal@20751 412 or al,20h
pascal@20751 413 cmp al,[bx]
pascal@20751 414 je @@match
pascal@20751 415 cmp al,'/' ; 2f
pascal@20751 416 jne @@notopt
pascal@20751 417 cmp [byte bx],'-'
pascal@20751 418 je @@match
pascal@20751 419 @@notopt:
pascal@20751 420 ifdef EXTRA
pascal@20751 421 cmp [byte bx],'/'
pascal@20751 422 je @@testalt
pascal@20751 423 endif
pascal@20751 424 cmp [byte bx],'|'
pascal@20751 425 je @@test
pascal@20751 426 inc bx
pascal@21984 427 cmp [byte bx-1],0
pascal@20751 428 jne @@notopt
pascal@20751 429 stc
pascal@20751 430 jmp @@nokeyword
pascal@20751 431 @@found:
pascal@20751 432 mov [di],si
pascal@20751 433 dec dx
pascal@20751 434 dec dx
pascal@20751 435 je @@done
pascal@21998 436 ;mov bx,si
pascal@20751 437 call @strtol$qpxzc
pascal@20751 438 mov [di],ax
pascal@20751 439 mov [di+2],dx
pascal@20751 440 @@done:
pascal@20751 441 clc
pascal@20751 442 @@nokeyword:
pascal@20751 443 sbb ax,ax
pascal@20751 444 pop di si
pascal@20751 445 ret
pascal@20751 446
pascal@20751 447 endp @argstr$qpxzcxt1ppxzc
pascal@20751 448
pascal@20751 449 else
pascal@20751 450
pascal@19515 451 ;***************************************************************
pascal@20630 452 ;_fastcall int strhead(bx:const char* a, ax:const char* b);
pascal@19515 453 ;***************************************************************
pascal@20528 454 global @strhead$qpxzct1:near
pascal@20528 455 proc @strhead$qpxzct1 near
pascal@19515 456
pascal@19515 457 @@loop:
pascal@19634 458 xchg ax,bx
pascal@19515 459 mov cl,[bx] ; cl = *b++
pascal@19515 460 inc bx
pascal@19515 461 or cl,cl ; clear C
pascal@21628 462 jz failifc ; return 0
pascal@19515 463 xchg ax,bx
pascal@19515 464 xor cl,[bx] ; cl -= *a++
pascal@19634 465 inc bx
pascal@19515 466 and cl,0dfh ; case insensitive
pascal@21628 467 jne fail ; return -1
pascal@21628 468 jmp @@loop
pascal@19515 469
pascal@20528 470 endp @strhead$qpxzct1
pascal@19515 471
pascal@20751 472 endif
pascal@19515 473
pascal@22152 474 include "himem.inc"
pascal@22152 475
pascal@19515 476 ;***************************************************************
pascal@20630 477 ;_fastcall char* malloc_or_die(ax:unsigned size);
pascal@19515 478 ;***************************************************************
pascal@21757 479 xchg_heap_top:
pascal@22668 480 xchg ax,[bx]
pascal@21757 481 ret
pascal@21757 482
pascal@20528 483 global @malloc_or_die$qui:near
pascal@20528 484 proc @malloc_or_die$qui near
pascal@19515 485
pascal@21777 486 global malloc_or_die:near ; ax = malloc_or_die(ax)
pascal@19515 487 malloc_or_die:
pascal@22668 488 extrn _heap_top
pascal@22668 489 mov bx,offset _heap_top
pascal@22668 490 add ax,[bx]
pascal@22668 491 jnc xchg_heap_top
pascal@20456 492 mov bx,offset msg_malloc
pascal@19515 493
pascal@20528 494 endp @malloc_or_die$qui
pascal@19515 495
pascal@19515 496
pascal@19515 497 ;***************************************************************
pascal@20630 498 ;_fastcall int die(bx:const char* msg);
pascal@22152 499 ;int exit(ax:int status);
pascal@22152 500 ;int abort(void);
pascal@19515 501 ;***************************************************************
pascal@20528 502 global @die$qpxzc:near
pascal@20528 503 proc @die$qpxzc near
pascal@20528 504 @die$qpxzc:
pascal@19515 505 global die:near ; die(bx)
pascal@19515 506 die:
pascal@19515 507 call puts
pascal@21984 508 global @exit$qv:near
pascal@21984 509 @exit$qv:
pascal@19538 510 _exit:
pascal@22152 511 extrn _imgs:image_himem
pascal@22152 512 mov cx,[(word _imgs.buf)+2] ; no_exit ?
pascal@21757 513 mov ah,4Ch
pascal@22152 514 jcxz do_int21h
pascal@19515 515 mov bx, offset msg_hang
pascal@19515 516 call puts
pascal@20486 517 ; global _abort:near
pascal@19515 518 _abort:
pascal@19515 519 cli
pascal@19515 520 hlt
pascal@20778 521 jmp _abort
pascal@19515 522
pascal@20528 523 endp @die$qpxzc
pascal@19515 524
pascal@22152 525 ;***************************************************************
pascal@22152 526 ;_fastcall void puts(bx:const char* s):
pascal@22152 527 ;***************************************************************
pascal@22152 528 global @puts$qpxzc:near
pascal@22152 529
pascal@22152 530 ; global puts:near ; puts(bx)
pascal@22152 531 @putsz:
pascal@22152 532 call @putc
pascal@22152 533 @puts$qpxzc:
pascal@22152 534 puts:
pascal@22152 535 mov dl,[bx]
pascal@22152 536 inc bx
pascal@22152 537 or dl,dl
pascal@22152 538 jne @putsz
pascal@22152 539 mov dl,10
pascal@22152 540 @putc:
pascal@22152 541 cmp dl,10
pascal@22152 542 jne @putcz
pascal@22152 543 call @putcz2
pascal@22152 544 @putcz2:
pascal@22152 545 xor dl,7 ; 10^13 1010^1101
pascal@22152 546 @putcz:
pascal@22152 547 mov ah,2
pascal@22152 548 do_int21h:
pascal@22152 549 int 21h
pascal@22152 550 ret
pascal@22152 551
pascal@19515 552
pascal@19636 553 ;***************************************************************
pascal@20630 554 ;static long next_chunk(struct image_himem *di);
pascal@19636 555 ;***************************************************************
pascal@19636 556 proc next_chunk near
pascal@19636 557
pascal@19636 558 push si
pascal@20540 559 mov ax,[(image_himem di).fd]
pascal@19636 560 call close
pascal@19636 561 ifndef NO386
pascal@19636 562 xor eax,eax
pascal@19636 563 else
pascal@19636 564 xor ax,ax
pascal@20485 565 cwd
pascal@19636 566 endif
pascal@19636 567 mov [(image_himem di).fd],ax
pascal@19636 568 mov bx,[(image_himem di).state]
pascal@19636 569 cmp al,[bx] ; ""
pascal@19636 570 jz @@end
pascal@19636 571 mov si,bx
pascal@19636 572 @@scan:
pascal@19636 573 lodsb
pascal@19636 574 mov cx,si
pascal@19636 575 cmp al,','
pascal@19636 576 jz @@eos
pascal@20527 577 or al,al
pascal@19636 578 jnz @@scan
pascal@19636 579 dec cx
pascal@19636 580 @@eos:
pascal@19636 581 mov [(image_himem di).state],cx
pascal@19636 582 dec si
pascal@19636 583 push [word si]
pascal@20485 584 mov [byte si],ah ; set temp eos
pascal@19636 585 call open
pascal@19636 586 pop [word si] ; restore string
pascal@22176 587 jc jcdie
pascal@19636 588 mov [(image_himem di).fd],ax
pascal@19636 589 mov [(image_himem di).fd2close],ax
pascal@20542 590 mov bl,02h ; SEEK_END
pascal@19636 591 call lseek0
pascal@22176 592 jcdie:
pascal@19636 593 mov bx,[(image_himem di).errmsg]
pascal@19636 594 jc die
pascal@19636 595 ifndef NO386
pascal@19636 596 push eax
pascal@20548 597 mov ax,[(image_himem di).fd]
pascal@19636 598 call rewind
pascal@19636 599 pop eax
pascal@19636 600 @@end:
pascal@19636 601 mov [(image_himem di).chunk_size],eax
pascal@19636 602 else
pascal@19636 603 push ax
pascal@19636 604 push dx
pascal@20548 605 mov ax,[(image_himem di).fd]
pascal@19636 606 call rewind
pascal@19636 607 pop dx
pascal@19636 608 pop ax
pascal@19636 609 @@end:
pascal@19636 610 mov [word (image_himem di).chunk_size],ax
pascal@19636 611 mov [word ((image_himem di).chunk_size)+2],dx
pascal@19636 612 endif
pascal@19636 613 pop si
pascal@19636 614 ret
pascal@19636 615
pascal@19636 616 endp next_chunk
pascal@19636 617
pascal@19636 618
pascal@19571 619 ifdef LARGE_IMAGES
pascal@19571 620 struc data_himem ;struct data_himem {
pascal@19571 621 first dd ? ; 0 u32 first;
pascal@19571 622 cacheidx dw ? ; 4 int cacheidx;
pascal@19571 623 pageidx dw ? ; 6 int pageidx;
pascal@19571 624 cache dd 1024 dup(?) ; 8 int cache;
pascal@19571 625 page dd 1024 dup(?) ;4104 int page;
pascal@22007 626 ends data_himem ;}; // size=8200
pascal@19571 627 endif
pascal@19571 628
pascal@19515 629 ;***************************************************************
pascal@20630 630 ;_fastcall u32* malloc_bufv_or_die(bx:struct image_himem *m);
pascal@19538 631 ;***************************************************************
pascal@20528 632 global @malloc_bufv_or_die$qp11image_himem:near
pascal@20528 633 proc @malloc_bufv_or_die$qp11image_himem near
pascal@19538 634
pascal@19636 635 p386
pascal@19538 636 push si
pascal@20538 637 mov si,bx
pascal@19571 638 ifdef LARGE_IMAGES
pascal@21777 639 movzx eax,[word ((image_himem si).size) + 2]
pascal@21777 640 shr ax,4 ; pages index size = size >> 20
pascal@21777 641 add ax,8+4096+8
pascal@19571 642 call malloc_or_die
pascal@20527 643 mov cx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
pascal@19571 644 add ecx,[(image_himem si).size]
pascal@19571 645 shr ecx,12
pascal@19571 646 mov [curdata],ax
pascal@19571 647 else
pascal@21777 648 mov eax,[(image_himem si).size]
pascal@21777 649 dec eax
pascal@21777 650 shr eax,12
pascal@21777 651 inc ax ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
pascal@21777 652 push ax
pascal@21777 653 inc ax ; cnt+1
pascal@21777 654 shl ax,2 ; bufv => vcpi => vm86
pascal@19538 655 ; our malloc zeroes allocated mem: bufv[cnt]=0;
pascal@19538 656 ; Allocate pages, storing addrs in addrbuf
pascal@19538 657 call malloc_or_die
pascal@19571 658 pop cx
pascal@19571 659 push ax
pascal@19571 660 endif
pascal@19546 661 mov [(image_himem si).bufv],ax
pascal@19571 662 xchg ax,si
pascal@19538 663 @@vcpi_alloc:
pascal@19538 664 mov ax,0DE04h
pascal@19538 665 int 67h
pascal@19538 666 or ah,ah
pascal@22176 667 stc
pascal@19538 668 mov bx,offset vcpi_alloc_err
pascal@22176 669 jnz jcdie
pascal@19571 670 ; for (i = cnt-1; i >= 0; i--)
pascal@19571 671 ifdef LARGE_IMAGES
pascal@19571 672 mov eax,ecx
pascal@19571 673 dec eax
pascal@19571 674 else
pascal@19571 675 mov ax,cx
pascal@19571 676 dec ax
pascal@19571 677 cwde
pascal@19571 678 endif
pascal@19571 679 shl eax,12 ; i*_4k
pascal@19571 680 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
pascal@22152 681 mov bx,offset _imgs.fallback
pascal@19571 682 push eax
pascal@19571 683 add eax,[bx-2+2]
pascal@19571 684 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
pascal@19571 685 pop eax ; i*_4k
pascal@19571 686 jbe @@pmok
pascal@19571 687 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
pascal@19571 688 jae @@vcpi_alloc
pascal@19571 689 @@pmok:
pascal@19571 690 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
pascal@22152 691 mov bx,offset _imgs.fallback+32
pascal@19571 692 add eax,[bx-2+2] ; +initrd.fallback
pascal@19571 693 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
pascal@19571 694 ja @@initrdok
pascal@19571 695 mov eax,[bx-2+6] ; initrd.size
pascal@19571 696 add eax,[bx-2+2] ; +initrd.fallback
pascal@19571 697 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
pascal@19571 698 @@jnc_vcpi_alloc:
pascal@19571 699 ja @@vcpi_alloc
pascal@19571 700 @@initrdok:
pascal@19571 701 ifdef LARGE_IMAGES
pascal@19571 702 cmp [(data_himem si).first],0
pascal@19571 703 jne @@notfirst
pascal@19571 704 mov [(data_himem si).first],edx
pascal@19571 705 @@notfirst:
pascal@19571 706 mov bx,[(data_himem si).cacheidx]
pascal@19571 707 cmp bh,4
pascal@19571 708 jae @@nextpage
pascal@19571 709 shl bx,2
pascal@19571 710 inc [(data_himem si).cacheidx]
pascal@19571 711 mov [(data_himem bx+si).cache],edx
pascal@19571 712 loopd @@vcpi_alloc
pascal@19571 713 mov [(data_himem bx+si).cache],ecx ; last is 0
pascal@19571 714 @@nextpage:
pascal@19571 715 and [(data_himem si).cacheidx],0
pascal@19571 716 mov bx,[(data_himem si).pageidx]
pascal@19571 717 mov [(data_himem bx+si).page],edx
pascal@19571 718 add [(data_himem si).pageidx],4
pascal@19571 719 push cx
pascal@19571 720 lea cx,[(data_himem si).cache]
pascal@19571 721 ifdef NO386
pascal@19571 722 push edx
pascal@19571 723 pop dx
pascal@19571 724 pop ax
pascal@19571 725 endif
pascal@19571 726 call storepage ; storepage(edx,cx)
pascal@19571 727 pop cx
pascal@19571 728 or ecx,ecx ; clear C
pascal@19571 729 jnz @@jnc_vcpi_alloc
pascal@19571 730 mov [dword (data_himem si).cacheidx],ecx
pascal@19571 731 xchg ax,si
pascal@19571 732 else
pascal@19571 733 mov [si],edx
pascal@19571 734 lodsd ; si=+4
pascal@19538 735 loop @@vcpi_alloc
pascal@19538 736 pop ax
pascal@19571 737 endif
pascal@19538 738 pop si
pascal@19538 739 ret
pascal@19636 740 ifdef NO386
pascal@19636 741 p8086
pascal@19636 742 endif
pascal@19538 743
pascal@20528 744 endp @malloc_bufv_or_die$qp11image_himem
pascal@19538 745
pascal@19538 746
pascal@19538 747 ;***************************************************************
pascal@20630 748 ;_fastcall void memcpy_image(bx:struct image_himem *m);
pascal@19515 749 ;***************************************************************
pascal@20528 750 global @memcpy_image$qp11image_himem:near
pascal@20528 751 proc @memcpy_image$qp11image_himem near
pascal@19515 752
pascal@19571 753 ifndef NO386
pascal@19571 754 mov edx,[(image_himem bx).fallback]
pascal@19571 755 mov eax,[(image_himem bx).buf]
pascal@19571 756 cmp eax,edx ; if (m->fallback != m->buf)
pascal@19571 757 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 758 ifdef LARGE_IMAGES
pascal@19571 759 mov ecx,[(image_himem bx).size]
pascal@20146 760 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19571 761 push ecx
pascal@19571 762 else
pascal@19571 763 push [(image_himem bx).size]
pascal@19571 764 endif
pascal@19571 765 push eax
pascal@19571 766 push 0
pascal@19571 767 call_memcpy32:
pascal@19571 768 push edx
pascal@19571 769 else
pascal@21984 770 les ax,[dword ((image_himem bx).fallback)]
pascal@21984 771 mov dx,es
pascal@19571 772 mov cx,[word ((image_himem bx).buf)]
pascal@19571 773 cmp ax,cx ; if (m->fallback != m->buf)
pascal@19571 774 jnz @@do
pascal@19571 775 cmp dx,[word ((image_himem bx).buf)+2]
pascal@19571 776 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
pascal@19571 777 @@do:
pascal@19571 778 push [word ((image_himem bx).size)+2]
pascal@19571 779 push [word ((image_himem bx).size)]
pascal@19571 780 push [word ((image_himem bx).buf)+2]
pascal@19571 781 push cx
pascal@19571 782 xor cx,cx
pascal@19571 783 push cx
pascal@19571 784 call_memcpy32:
pascal@19571 785 push dx
pascal@19571 786 push ax
pascal@19571 787 ifdef LARGE_IMAGES
pascal@19571 788 jmp @@memcpy
pascal@20146 789 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
pascal@19636 790 p386
pascal@19571 791 push ecx
pascal@19571 792 push eax
pascal@19571 793 push 0
pascal@19571 794 push edx
pascal@19636 795 ifdef NO386
pascal@19636 796 p8086
pascal@19636 797 endif
pascal@19571 798 endif
pascal@19571 799 endif
pascal@19571 800 @@memcpy:
pascal@20528 801 extrn memcpy32:near
pascal@20528 802 call near memcpy32
pascal@19571 803 @@skip:
pascal@19571 804 ret
pascal@19571 805
pascal@20528 806 endp @memcpy_image$qp11image_himem
pascal@19571 807
pascal@19571 808 ;***************************************************************
pascal@20630 809 ;_fastcall void storepage(bx:u32 *dst);
pascal@19571 810 ;***************************************************************
pascal@20538 811 global @storepage$qpul:near
pascal@20538 812 proc @storepage$qpul near
pascal@19571 813
pascal@19571 814 ifndef NO386
pascal@19571 815 mov edx,[bx]
pascal@19571 816 else
pascal@21984 817 les ax,[dword bx]
pascal@21984 818 mov dx,es
pascal@19571 819 endif
pascal@20538 820 mov cx,offset _xfer_buf
pascal@20146 821 storepage: ; storepage(edx,cx)
pascal@19571 822 ifndef NO386
pascal@19571 823 push 0
pascal@19571 824 push 4096
pascal@19571 825 push 0
pascal@19571 826 else
pascal@19571 827 xor bx,bx
pascal@19571 828 push bx
pascal@19571 829 mov bh,4096/256
pascal@19571 830 push bx
pascal@19571 831 xor bx,bx
pascal@19571 832 push bx
pascal@19571 833 endif
pascal@19571 834 push cx
pascal@19571 835 push ds
pascal@19571 836 jmp call_memcpy32
pascal@19571 837
pascal@20538 838 endp @storepage$qpul
pascal@19571 839
pascal@19571 840
pascal@19571 841 ifdef LARGE_IMAGES
pascal@19636 842 p386
pascal@19571 843 ;***************************************************************
pascal@20630 844 ;_fastcall void reset_bufv(bx:u32 *p);
pascal@19571 845 ;***************************************************************
pascal@20528 846 global @reset_bufv$qpul:near
pascal@20528 847 proc @reset_bufv$qpul near
pascal@19571 848
pascal@20524 849 mov [curdata],bx
pascal@19571 850 and [dword (data_himem bx).cacheidx],0
pascal@19571 851 ret
pascal@19571 852
pascal@20528 853 endp @reset_bufv$qpul
pascal@19571 854
pascal@19571 855 ;***************************************************************
pascal@19571 856 ;u32* prev_bufv();
pascal@19571 857 ;u32* prev_bufv();
pascal@19571 858 ;***************************************************************
pascal@19571 859 global _prev_bufv:near
pascal@19571 860 global _next_bufv:near
pascal@19571 861 proc _prev_bufv near
pascal@19571 862
pascal@19571 863 stc
pascal@19571 864 db 73h ; jnc
pascal@19571 865 _next_bufv:
pascal@19571 866 clc
pascal@20528 867 push si
pascal@22176 868 mov si,0
pascal@22176 869 org $-2
pascal@22176 870 curdata dw ?
pascal@19571 871 sbb ax,ax
pascal@20527 872 cmc
pascal@20527 873 adc ax,[(data_himem si).cacheidx] ; -1/+1
pascal@19571 874 xor ecx,ecx
pascal@19571 875 test ax,0fc00h
pascal@19571 876 jz @@gotpage
pascal@19571 877 push ax ; FFFF / 0400
pascal@19571 878 sar ax,8 ; FFFC / 0004
pascal@19571 879 and al,0fch
pascal@19571 880 add [(data_himem si).pageidx],ax
pascal@19571 881 mov bx,[(data_himem si).pageidx]
pascal@19571 882 lea bx,[(data_himem bx+si).page]
pascal@19571 883 mov edx,ds
pascal@19571 884 shl edx,4
pascal@19571 885 lea cx,[(data_himem si).cache]
pascal@19571 886 add edx,ecx
pascal@19571 887 mov eax,[bx]
pascal@19571 888 or eax,eax
pascal@19571 889 jnz @@pageok
pascal@19571 890 pop ax
pascal@19571 891 xchg ax,bx
pascal@19571 892 pop si
pascal@19571 893 ret
pascal@19571 894 @@pageok:
pascal@19571 895 mov cx,4096
pascal@19571 896 call memcpy_imagez ; get page
pascal@19571 897 pop ax ; FFFF / 0400
pascal@19571 898 cbw
pascal@19571 899 shr ax,6 ; 03FF / 0000
pascal@19571 900 @@gotpage:
pascal@19571 901 mov [(data_himem si).cacheidx],ax
pascal@19571 902 shl ax,2
pascal@19571 903 xchg ax,bx
pascal@19571 904 lea ax,[(data_himem bx+si).cache]
pascal@19571 905 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
pascal@19571 906 jnz @@notfirst2
pascal@19571 907 xchg ax,si ; &first
pascal@19571 908 @@notfirst2:
pascal@19571 909 pop si
pascal@19571 910 ret
pascal@19571 911
pascal@19571 912 endp _prev_bufv
pascal@19571 913 endif
pascal@19571 914
pascal@20146 915 ifdef NO386
pascal@20146 916 p8086
pascal@20146 917 endif
pascal@19571 918
pascal@19571 919 ;***************************************************************
pascal@21649 920 ;_fastcall void open_image(bx:struct image_himem *m, ax:const char *name);
pascal@19515 921 ;***************************************************************
pascal@21649 922
pascal@21649 923 global @open_image$qp11image_himempxzc:near
pascal@21649 924 proc @open_image$qp11image_himempxzc near
pascal@19515 925
pascal@20484 926 push di
pascal@21649 927 xchg ax,bx
pascal@20485 928 xchg ax,di
pascal@20538 929 ifdef EXTRA
pascal@20538 930 cmp [(image_himem di).fd],0 ; iso image/kernel ?
pascal@20538 931 jnz @@alreadydone
pascal@20538 932 endif
pascal@20484 933 mov [(image_himem di).state],bx
pascal@20484 934 push bx
pascal@20534 935 ifdef EXTRA
pascal@20538 936 cmp [(image_himem di).next_chunk],0 ; iso image/initrd ?
pascal@20538 937 jnz @@next
pascal@20534 938 mov [(image_himem di).next_chunk],offset next_chunk
pascal@19515 939 @@next:
pascal@21754 940 ;push di
pascal@19546 941 call [(image_himem di).next_chunk] ; m->next_chunk()
pascal@21754 942 ;pop di
pascal@20778 943 else
pascal@20778 944 @@next:
pascal@20778 945 call next_chunk
pascal@20778 946 endif
pascal@19515 947 ifndef NO386
pascal@19515 948 add eax,3
pascal@19515 949 and al,0FCh
pascal@19546 950 add [(image_himem di).size],eax ; m->size += m->chunk_size
pascal@19515 951 or eax,eax
pascal@19515 952 else
pascal@19515 953 add ax,3
pascal@19515 954 adc dx,0
pascal@19515 955 and al,0FCh
pascal@19546 956 add [word (image_himem di).size],ax ; m->size += m->chunk_size
pascal@19546 957 adc [word ((image_himem di).size)+2],dx
pascal@20520 958 or ax,dx
pascal@19515 959 endif
pascal@20520 960 jnz @@next
pascal@20484 961 pop [(image_himem di).state]
pascal@20778 962 ifdef EXTRA
pascal@21754 963 ;push di
pascal@19546 964 call [(image_himem di).next_chunk] ; m->next_chunk()
pascal@21754 965 ;pop di
pascal@20778 966 else
pascal@20778 967 call next_chunk
pascal@20778 968 endif
pascal@20538 969 @@alreadydone:
pascal@20484 970 pop di
pascal@19515 971 ret
pascal@19515 972
pascal@21649 973 endp @open_image$qp11image_himempxzc
pascal@19515 974
pascal@19515 975
pascal@19515 976 ;***************************************************************
pascal@20630 977 ;_fastcall int read_image(bx:struct image_himem *m);
pascal@19515 978 ;***************************************************************
pascal@20538 979 global @read_image$qp11image_himem:near
pascal@20538 980 proc @read_image$qp11image_himem near
pascal@19515 981
pascal@20539 982 push si di
pascal@20538 983 mov di,bx
pascal@20539 984 mov si,4096
pascal@20539 985 push si ; original size
pascal@19515 986 @@loop:
pascal@19538 987 ifndef NO386
pascal@20539 988 movzx ecx,si
pascal@19546 989 mov eax,[(image_himem di).chunk_size]
pascal@19538 990 cmp ecx,eax
pascal@19538 991 jb @@szok
pascal@19538 992 else
pascal@20539 993 mov cx,si
pascal@19546 994 mov ax,[word (image_himem di).chunk_size]
pascal@19538 995 cmp cx,ax
pascal@19515 996 jb @@szok
pascal@19546 997 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
pascal@19515 998 jne @@szok
pascal@20484 999 endif
pascal@19515 1000 xchg ax,cx
pascal@19515 1001 @@szok:
pascal@19538 1002 jcxz image_done
pascal@20778 1003 mov dx,offset _xfer_buf+4096
pascal@20778 1004 sub dx,si
pascal@20538 1005 mov bx,[di]
pascal@20528 1006 call @read$cxdxbx
pascal@21754 1007 jbe image_done
pascal@19515 1008 xor cx,cx
pascal@20539 1009 cwd ; ax < 8000h
pascal@19538 1010 ifndef NO386
pascal@19538 1011 cwde ; ax < 8000h
pascal@19546 1012 sub [(image_himem di).chunk_size],eax
pascal@20541 1013 xchg eax,ebx
pascal@19538 1014 else
pascal@19546 1015 sub [word (image_himem di).chunk_size],ax
pascal@20539 1016 xchg ax,bx
pascal@19546 1017 sbb [word ((image_himem di).chunk_size)+2],dx
pascal@19538 1018 jnz @@fill
pascal@19546 1019 cmp [word (image_himem di).chunk_size],dx
pascal@19538 1020 endif
pascal@19538 1021 jnz @@fill
pascal@20539 1022 dec cx
pascal@19515 1023 @@fill:
pascal@20539 1024 test bl,3
pascal@19515 1025 je @@filled
pascal@20539 1026 mov [bx+_xfer_buf],dh
pascal@20539 1027 inc bx
pascal@19515 1028 jmp @@fill
pascal@19515 1029 @@filled:
pascal@19538 1030 ifndef NO386
pascal@20541 1031 sub [(image_himem di).remaining],ebx
pascal@19538 1032 else
pascal@20539 1033 sub [word (image_himem di).remaining],bx
pascal@19546 1034 sbb [word ((image_himem di).remaining)+2],dx
pascal@19538 1035 endif
pascal@20541 1036 sub si,bx
pascal@19538 1037 pushf
pascal@20778 1038 ifdef EXTRA
pascal@20539 1039 and cx,[(image_himem di).next_chunk]
pascal@20484 1040 jcxz @@same_chunk
pascal@20778 1041 push di
pascal@20539 1042 call cx
pascal@20778 1043 pop cx
pascal@20778 1044 else
pascal@20778 1045 jcxz @@same_chunk
pascal@20778 1046 call next_chunk
pascal@20778 1047 endif
pascal@19538 1048 @@same_chunk:
pascal@19538 1049 popf
pascal@19538 1050 jnz @@loop
pascal@20484 1051 image_done:
pascal@20528 1052 pop ax ; original size
pascal@20539 1053 sub ax,si
pascal@20539 1054 pop di si
pascal@20538 1055 ret
pascal@19515 1056
pascal@20538 1057 endp @read_image$qp11image_himem
pascal@19515 1058
pascal@19515 1059
pascal@19515 1060 ;***************************************************************
pascal@21569 1061 ;_fastcall unsigned long strtol(const char *s);
pascal@19515 1062 ;***************************************************************
pascal@21998 1063 ifndef USE_ARGSTR
pascal@20528 1064 global @strtol$qpxzc:near
pascal@21998 1065 endif
pascal@20528 1066 proc @strtol$qpxzc near
pascal@19515 1067
pascal@20528 1068 ifndef NO386
pascal@21998 1069 ifndef USE_ARGSTR
pascal@19515 1070 push si
pascal@21569 1071 mov si,bx
pascal@21998 1072 endif
pascal@19515 1073 xor ecx,ecx
pascal@19515 1074 xor eax,eax
pascal@21569 1075 xor ebx,ebx
pascal@21569 1076 or si,si
pascal@21569 1077 jz @@end
pascal@19515 1078 lodsb
pascal@19634 1079 or al,20h
pascal@21984 1080 cmp al,'a'
pascal@21984 1081 jb @@notvga
pascal@21984 1082 sub al,'n'
pascal@21984 1083 @@vgaloop:
pascal@19538 1084 dec cx
pascal@21984 1085 add al,6
pascal@21984 1086 jb @@vgaloop ; vga=normal,extended,ask
pascal@19538 1087 @@vga:
pascal@19538 1088 dec cx
pascal@19538 1089 xchg ax,cx
pascal@19538 1090 cwd
pascal@19634 1091 jmp @@popsiret
pascal@19538 1092 @@notvga:
pascal@22632 1093 mov cl,10 ; radix
pascal@19515 1094 cmp al,'-'
pascal@21984 1095 ja @@radixkeep
pascal@21984 1096 cmc ; '+'=2B:C=0 '-'=2D:C=1
pascal@19515 1097 lodsb
pascal@19515 1098 @@radixkeep:
pascal@19515 1099 pushf
pascal@19515 1100 cmp al,'0'
pascal@19515 1101 jne @@radixok
pascal@19515 1102 mov cl,8
pascal@19515 1103 lodsb
pascal@19634 1104 or al,20h
pascal@19634 1105 cmp al,'x'
pascal@19515 1106 jne @@radixok
pascal@19515 1107 mov cl,16
pascal@19515 1108 @@strtollp:
pascal@19515 1109 lodsb
pascal@19515 1110 @@radixok:
pascal@19634 1111 or al,20h
pascal@19515 1112 sub al,'0'
pascal@19515 1113 jb @@endstrtol
pascal@19515 1114 cmp al,9
pascal@19515 1115 jbe @@digitok
pascal@19515 1116 cmp al,'a'-'0'
pascal@19515 1117 jb @@endstrtol
pascal@19515 1118 sub al,'a'-'0'-10
pascal@19515 1119 @@digitok:
pascal@19515 1120 cmp al,cl
pascal@19515 1121 jae @@endstrtol
pascal@19515 1122 xchg eax,ebx
pascal@19515 1123 mul ecx
pascal@19515 1124 add eax,ebx
pascal@19515 1125 xchg eax,ebx
pascal@19515 1126 jmp @@strtollp
pascal@19515 1127 @@endstrtol:
pascal@19515 1128 mov cl,10
pascal@19515 1129 cmp al,'k'-'a'+10
pascal@19515 1130 je @@shift
pascal@19515 1131 mov cl,20
pascal@19515 1132 cmp al,'m'-'a'+10
pascal@19515 1133 je @@shift
pascal@19515 1134 mov cl,30
pascal@19515 1135 cmp al,'g'-'a'+10
pascal@19515 1136 jne @@noshift
pascal@19515 1137 @@shift:
pascal@19515 1138 shl ebx,cl
pascal@19515 1139 @@noshift:
pascal@19515 1140 popf
pascal@19515 1141 jnc @@end
pascal@19515 1142 neg ebx
pascal@19515 1143 @@end:
pascal@19515 1144 push ebx
pascal@19515 1145 pop ax
pascal@19515 1146 pop dx
pascal@19634 1147 @@popsiret:
pascal@21998 1148 ifndef USE_ARGSTR
pascal@19515 1149 pop si
pascal@21998 1150 endif
pascal@19515 1151 else
pascal@21998 1152 ifndef USE_ARGSTR
pascal@21984 1153 push si di
pascal@19515 1154 xor ax,ax
pascal@19515 1155 cwd
pascal@21569 1156 or bx,bx
pascal@21998 1157 else
pascal@21998 1158 push di
pascal@21998 1159 xor ax,ax
pascal@21998 1160 cwd
pascal@21998 1161 or si,si
pascal@21998 1162 endif
pascal@21569 1163 jz @@goend
pascal@19515 1164 xchg ax,di
pascal@21998 1165 ifndef USE_ARGSTR
pascal@21569 1166 mov si,bx
pascal@21998 1167 endif
pascal@22632 1168 xor cx,cx
pascal@19538 1169 lodsb
pascal@19634 1170 or al,20h
pascal@21984 1171 cmp al,'a'
pascal@21984 1172 jb @@notvga
pascal@21984 1173 sub al,'n'
pascal@21984 1174 @@vgaloop:
pascal@19538 1175 dec cx
pascal@21984 1176 add al,6
pascal@21984 1177 jb @@vgaloop ; vga=normal,extended,ask
pascal@19538 1178 @@vga:
pascal@19538 1179 xchg ax,cx
pascal@19538 1180 @@goend:
pascal@19634 1181 jmp @@popdisiret
pascal@19538 1182 @@notvga:
pascal@22632 1183 mov cl,10 ; radix
pascal@19515 1184 cmp al,'-'
pascal@21984 1185 ja @@radixkeep
pascal@21984 1186 cmc ; '+'=2B:C=0 '-'=2D:C=1
pascal@19515 1187 lodsb
pascal@19515 1188 @@radixkeep:
pascal@19515 1189 pushf
pascal@19515 1190 cmp al,'0'
pascal@19515 1191 jne @@radixok
pascal@19515 1192 mov cl,8
pascal@19515 1193 lodsb
pascal@20146 1194 or al,20h
pascal@19634 1195 cmp al,'x'
pascal@19515 1196 jne @@radixok
pascal@19515 1197 mov cl,16
pascal@19515 1198 @@strtollp:
pascal@19515 1199 lodsb
pascal@19515 1200 @@radixok:
pascal@19634 1201 or al,20h
pascal@19515 1202 sub al,'0'
pascal@19515 1203 jb @@endstrtol
pascal@19515 1204 cmp al,9
pascal@19515 1205 jbe @@digitok
pascal@19515 1206 cmp al,'a'-'0'
pascal@19515 1207 jb @@endstrtol
pascal@19515 1208 sub al,'a'-'0'-10
pascal@19515 1209 @@digitok:
pascal@19515 1210 cmp al,cl
pascal@19515 1211 jae @@endstrtol
pascal@19515 1212
pascal@19515 1213 push ax
pascal@19515 1214 push dx
pascal@21984 1215 xchg ax,bx
pascal@21984 1216 mul cx
pascal@21984 1217 xchg ax,bx
pascal@21984 1218 xchg ax,dx
pascal@19515 1219 xchg ax,di
pascal@19515 1220 pop ax
pascal@19515 1221 mul cx
pascal@21984 1222 add ax,di
pascal@19515 1223 xchg ax,dx
pascal@19515 1224 pop ax
pascal@19515 1225 mov ah,0
pascal@21984 1226 add bx,ax
pascal@19515 1227 adc dx,0
pascal@19515 1228
pascal@19515 1229 jmp @@strtollp
pascal@19515 1230 @@endstrtol:
pascal@19515 1231 mov cl,10
pascal@19515 1232 cmp al,'k'-'a'+10
pascal@19515 1233 je @@shift
pascal@19515 1234 mov cl,20
pascal@19515 1235 cmp al,'m'-'a'+10
pascal@19515 1236 je @@shift
pascal@19515 1237 mov cl,30
pascal@19515 1238 cmp al,'g'-'a'+10
pascal@19515 1239 jne @@noshift
pascal@19515 1240 @@shift:
pascal@19515 1241 rcl di,1
pascal@19515 1242 shl dx,1
pascal@19515 1243 loop @@shift
pascal@19515 1244 @@noshift:
pascal@19515 1245 popf
pascal@19515 1246 jnc @@end
pascal@19515 1247 not dx
pascal@21984 1248 neg bx
pascal@19515 1249 jne @@end
pascal@19515 1250 inc dx
pascal@19515 1251 @@end:
pascal@21984 1252 xchg ax,bx
pascal@19634 1253 @@popdisiret:
pascal@21998 1254 ifndef USE_ARGSTR
pascal@21984 1255 pop di si
pascal@21998 1256 else
pascal@21998 1257 pop di
pascal@21998 1258 endif
pascal@19515 1259 endif
pascal@20528 1260 strtol_ret:
pascal@19515 1261 ret
pascal@19515 1262
pascal@20528 1263 endp @strtol$qpxzc
pascal@19515 1264
pascal@19515 1265
pascal@20751 1266 ifdef USE_ARGSTR
pascal@20751 1267 ;***************************************************************
pascal@20751 1268 ;_fastcall void set_cmdline(bx:const char *filename);
pascal@20751 1269 ;***************************************************************
pascal@20751 1270 global @set_cmdline$qpxzc:near
pascal@20751 1271 proc @set_cmdline$qpxzc near
pascal@20751 1272 call openargs
pascal@20751 1273 jc strtol_ret
pascal@20751 1274 mov cx,4096
pascal@20751 1275 mov di,[_heap_top]
pascal@20751 1276 extrn read_cmdline:near
pascal@20751 1277 jmp near read_cmdline ; read_cmdline(ax,di,cx)
pascal@20751 1278
pascal@20751 1279 endp @set_cmdline$qpxzc
pascal@20751 1280 endif
pascal@20751 1281
pascal@20751 1282
pascal@19515 1283 ifdef NO386
pascal@19515 1284 ;***************************************************************
pascal@19515 1285 ;u16 topseg();
pascal@19515 1286 ;***************************************************************
pascal@19515 1287 global _topseg:near
pascal@19515 1288 proc _topseg near
pascal@19515 1289
pascal@19515 1290 int 12h
pascal@19515 1291 jnc @@max640k
pascal@19515 1292 mov ax,640 ; 9000
pascal@19515 1293 @@max640k:
pascal@19634 1294 dec ax
pascal@19515 1295 and al,0C0h
pascal@19515 1296 mov cl,6
pascal@19515 1297 shl ax,cl
pascal@19515 1298 ret
pascal@19515 1299
pascal@19515 1300 endp _topseg
pascal@19515 1301 endif
pascal@19515 1302
pascal@19825 1303 ifdef EXTRA
pascal@19825 1304 p8086
pascal@19825 1305 ;***************************************************************
pascal@20630 1306 ;_fastcall char *ultoa(axdx:unsigned long n);
pascal@19825 1307 ;***************************************************************
pascal@20528 1308 global @ultoa$qul:near
pascal@20528 1309 proc @ultoa$qul near
pascal@19825 1310
pascal@20538 1311 xchg ax,cx
pascal@20538 1312 xchg ax,dx ; AX:CX = n
pascal@19825 1313 push si
pascal@19825 1314 mov si,10
pascal@19825 1315 mov bx,offset ultoabuf+11
pascal@19825 1316 @@loop:
pascal@19825 1317 dec bx
pascal@19825 1318 xor dx,dx
pascal@19825 1319 div si ; DX:AX = 0000:hi(n)
pascal@19825 1320 xchg ax,cx ; CX = hi(n)/10
pascal@19825 1321 div si ; DX:AX = hi(n)%10:lo(n)
pascal@19825 1322 xchg ax,cx ; CX = lo(n/10)
pascal@20528 1323 ; AX = hi(n)/10 = hi(n/10)
pascal@20528 1324 mov [byte bx],'0'
pascal@20528 1325 add [bx],dl ; DL = n%10
pascal@20528 1326 mov dx,ax
pascal@20528 1327 or dx,cx
pascal@19825 1328 jnz @@loop
pascal@19825 1329 xchg ax,bx
pascal@19825 1330 pop si
pascal@19825 1331 ret
pascal@19825 1332
pascal@20528 1333 endp @ultoa$qul
pascal@19825 1334
pascal@19825 1335
pascal@19825 1336 ;***************************************************************
pascal@20630 1337 ;_fastcall unsigned long kver2ul(bx:char *kernel_version);
pascal@19825 1338 ;***************************************************************
pascal@20528 1339 global @kver2ul$qpzc:near
pascal@20528 1340 proc @kver2ul$qpzc near
pascal@19825 1341
pascal@20146 1342 push si
pascal@20538 1343 mov si,bx
pascal@20146 1344 xor bx,bx
pascal@20146 1345 mov cx,304h
pascal@19825 1346 @@number:
pascal@19825 1347 xor ax,ax
pascal@20146 1348 cwd
pascal@19825 1349 @@digit:
pascal@19825 1350 shl al,cl
pascal@19825 1351 shl ax,cl
pascal@19825 1352 lodsb
pascal@19825 1353 sub al,30h
pascal@19825 1354 cmp al,9
pascal@19825 1355 jbe @@digit
pascal@20146 1356 mov dl,bh
pascal@20146 1357 mov bh,bl
pascal@20146 1358 mov bl,ah
pascal@20146 1359 dec ch
pascal@20146 1360 jnz @@number
pascal@20146 1361 xchg ax,bx
pascal@20146 1362 pop si
pascal@19825 1363 kver2ulret:
pascal@19825 1364 ret
pascal@19825 1365
pascal@20528 1366 endp @kver2ul$qpzc
pascal@19825 1367
pascal@20528 1368 endif
pascal@19825 1369
pascal@19825 1370 ;***************************************************************
pascal@19825 1371 ;void try_default_args();
pascal@19825 1372 ;***************************************************************
pascal@20528 1373 ifdef EXTRA
pascal@20528 1374
pascal@19825 1375 global _try_default_args:near
pascal@19825 1376 proc _try_default_args near
pascal@19825 1377
pascal@19825 1378 mov bx,offset tazboot_cmd
pascal@19825 1379 call open
pascal@19825 1380 jc kver2ulret
pascal@19825 1381 mov cx,4096
pascal@19825 1382 mov di,[_heap_top]
pascal@19825 1383 extrn read_cmdline:near
pascal@19825 1384 jmp near read_cmdline ; read_cmdline(ax,di,cx)
pascal@19825 1385
pascal@19825 1386 endp _try_default_args
pascal@19825 1387
pascal@20528 1388 endif
pascal@19825 1389
pascal@19515 1390 ends _TEXT
pascal@19515 1391
pascal@19515 1392 end
pascal@19515 1393
pascal@19515 1394 ;###### END OF FILE ############################################
pascal@19825 1395