rev |
line source |
pascal@19515
|
1 ;***************************************************************
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pascal@19515
|
2 ;****** This file is distributed under GPL
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pascal@19515
|
3 ;***************************************************************
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pascal@19515
|
4 ideal
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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@19546
|
19 global _heap_top:word
|
pascal@19546
|
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@19546
|
23 msg_crlf db 13,10,0
|
pascal@19538
|
24 vcpi_alloc_err db "vcpi "
|
pascal@19571
|
25 msg_malloc db "malloc failure",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@19515
|
34 global _no_exit:byte
|
pascal@19515
|
35 _no_exit db ?
|
pascal@19515
|
36 filecnt db ? ; in fact 0 minus file count...
|
pascal@19515
|
37 nextfilename dw ?
|
pascal@19571
|
38 ifdef LARGE_IMAGES
|
pascal@19571
|
39 curdata dw ?
|
pascal@19571
|
40 endif
|
pascal@19825
|
41 ifdef EXTRA
|
pascal@19825
|
42 ultoabuf db 12 dup (?)
|
pascal@19825
|
43 endif
|
pascal@19515
|
44
|
pascal@19515
|
45 ends _BSS
|
pascal@19515
|
46
|
pascal@19515
|
47 segment _TEXT byte public use16 'CODE'
|
pascal@19515
|
48
|
pascal@19515
|
49 ;***************************************************************
|
pascal@19538
|
50 ;char* strcpy(const char* a, const char* b);
|
pascal@19580
|
51 ;char* strcat(const char* a, const char* b);
|
pascal@19634
|
52 ;char* strcatb(const char* a, const char* b);
|
pascal@19538
|
53 ;***************************************************************
|
pascal@19826
|
54 global _strcatb:near
|
pascal@19826
|
55 proc _strcatb near
|
pascal@19538
|
56
|
pascal@19826
|
57 ifdef EXTRA
|
pascal@19826
|
58 mov dl,3
|
pascal@19580
|
59 db 0bbh ; mov bx,imm opcode
|
pascal@19580
|
60 global _strcat:near
|
pascal@19580
|
61 _strcat:
|
pascal@19580
|
62 mov dl,1
|
pascal@19634
|
63 db 0bbh ; mov bx,imm opcode
|
pascal@19826
|
64 global _strcpy:near
|
pascal@19826
|
65 _strcpy:
|
pascal@19826
|
66 mov dl,0
|
pascal@19826
|
67 endif
|
pascal@19538
|
68 pop ax ;caller return address
|
pascal@19538
|
69 pop cx ; a
|
pascal@19538
|
70 pop bx ; b
|
pascal@19538
|
71 push bx
|
pascal@19538
|
72 push cx
|
pascal@19538
|
73 push ax
|
pascal@19538
|
74 push si
|
pascal@19538
|
75 mov si,cx
|
pascal@19826
|
76 ifdef EXTRA
|
pascal@19538
|
77 shr dl,1
|
pascal@19538
|
78 jnc @@nocat
|
pascal@19826
|
79 endif
|
pascal@19538
|
80 @@catlp:
|
pascal@19538
|
81 lodsb
|
pascal@19538
|
82 cmp al,0
|
pascal@19538
|
83 jne @@catlp
|
pascal@19538
|
84 dec si
|
pascal@19826
|
85 ifdef EXTRA
|
pascal@19538
|
86 shr dl,1
|
pascal@19538
|
87 jnc @@nocat
|
pascal@19826
|
88 endif
|
pascal@19538
|
89 cmp cx,si
|
pascal@19538
|
90 jz @@nocat
|
pascal@19538
|
91 mov [word si],20h
|
pascal@19538
|
92 inc si
|
pascal@19538
|
93 @@nocat:
|
pascal@19538
|
94 sub bx,si
|
pascal@19538
|
95 @@cpylp:
|
pascal@19538
|
96 mov al,[bx+si]
|
pascal@19538
|
97 mov [si],al
|
pascal@19538
|
98 inc si
|
pascal@19538
|
99 cmp al,0
|
pascal@19538
|
100 jne @@cpylp
|
pascal@19538
|
101 mov ax,cx
|
pascal@19538
|
102 pop si
|
pascal@19538
|
103 ret
|
pascal@19538
|
104
|
pascal@19826
|
105 endp _strcatb
|
pascal@19538
|
106
|
pascal@19538
|
107
|
pascal@19538
|
108 ;***************************************************************
|
pascal@19538
|
109 ;void* malloc(unsigned sz);
|
pascal@19538
|
110 ;***************************************************************
|
pascal@19538
|
111 global _malloc:near
|
pascal@19538
|
112 proc _malloc near
|
pascal@19538
|
113
|
pascal@19538
|
114 pop ax ;caller return address
|
pascal@19538
|
115 pop cx ; sz
|
pascal@19538
|
116 push cx
|
pascal@19538
|
117 push ax
|
pascal@19538
|
118 global malloc:near ; malloc(cx)
|
pascal@19571
|
119 malloc: ; keep CX, use AX,BX
|
pascal@19538
|
120 mov ax,[_heap_top]
|
pascal@19571
|
121 mov bx,-1400h ; MIN_STACK=_1k+PAGE_SIZE
|
pascal@19571
|
122 add bx,sp
|
pascal@19571
|
123 sub bx,ax ; can't overflow
|
pascal@19571
|
124 cmp bx,cx
|
pascal@19538
|
125 mov bx,offset msg_malloc
|
pascal@19538
|
126 jb puts
|
pascal@19538
|
127 add [_heap_top],cx ; _BEG has zero'd heap
|
pascal@19538
|
128 ;mov bx,ax
|
pascal@19538
|
129 @@zalloc:
|
pascal@19538
|
130 ;mov [byte bx],0
|
pascal@19538
|
131 ;inc bx ; ZF=0
|
pascal@19538
|
132 ;loop @@zalloc
|
pascal@19538
|
133 ret
|
pascal@19538
|
134
|
pascal@19538
|
135 endp _malloc
|
pascal@19538
|
136
|
pascal@19538
|
137
|
pascal@19538
|
138 ;***************************************************************
|
pascal@19515
|
139 ;void puts(const char* s):
|
pascal@19515
|
140 ;***************************************************************
|
pascal@19515
|
141 global _puts:near
|
pascal@19515
|
142 proc _puts near
|
pascal@19515
|
143
|
pascal@19515
|
144 pop ax ;caller return address
|
pascal@19515
|
145 pop bx ; s
|
pascal@19515
|
146 push bx
|
pascal@19515
|
147 push ax
|
pascal@19515
|
148 global puts:near ; puts(bx)
|
pascal@19515
|
149 puts:
|
pascal@19515
|
150 call putsz
|
pascal@19515
|
151 mov bx,offset msg_crlf
|
pascal@19515
|
152
|
pascal@19515
|
153 global putsz:near ; putsz(bx)
|
pascal@19515
|
154 putsz:
|
pascal@19515
|
155 push bx
|
pascal@19515
|
156 call strlen
|
pascal@19515
|
157 pop dx
|
pascal@19515
|
158 xchg ax,cx
|
pascal@19515
|
159 mov bx,1
|
pascal@19515
|
160 mov ah,40h
|
pascal@19538
|
161 int 21h
|
pascal@19538
|
162 xor ax,ax ; ZF=1 (for malloc failure)
|
pascal@19538
|
163 ret
|
pascal@19515
|
164
|
pascal@19515
|
165 endp _puts
|
pascal@19515
|
166
|
pascal@19515
|
167
|
pascal@19515
|
168 ;***************************************************************
|
pascal@19538
|
169 ;int fileattr(const char* name);
|
pascal@19538
|
170 ;***************************************************************
|
pascal@19538
|
171 global _fileattr:near
|
pascal@19538
|
172 proc _fileattr near
|
pascal@19538
|
173
|
pascal@19538
|
174 pop ax ;caller return address
|
pascal@19538
|
175 pop dx ; name
|
pascal@19538
|
176 push dx
|
pascal@19538
|
177 push ax
|
pascal@19538
|
178 mov ax,4300h
|
pascal@19538
|
179 int 21h
|
pascal@19538
|
180 xchg ax,cx
|
pascal@19538
|
181 jmp chkc
|
pascal@19538
|
182
|
pascal@19538
|
183 endp _fileattr
|
pascal@19538
|
184
|
pascal@19538
|
185
|
pascal@19538
|
186 ;***************************************************************
|
pascal@19546
|
187 ;int open(const char* name, int flags=O_RDONLY);
|
pascal@19515
|
188 ;***************************************************************
|
pascal@19515
|
189 global _open:near
|
pascal@19515
|
190 proc _open near
|
pascal@19515
|
191
|
pascal@19546
|
192 pop ax ;caller return address
|
pascal@19515
|
193 pop bx ; name
|
pascal@19546
|
194 push bx
|
pascal@19515
|
195 push ax
|
pascal@19546
|
196 global open:near ; open(bx)
|
pascal@19515
|
197 open:
|
pascal@19515
|
198 mov dx,bx
|
pascal@19546
|
199 mov ax,3d00h
|
pascal@19515
|
200 dos:
|
pascal@19515
|
201 int 21h
|
pascal@19538
|
202 chkc:
|
pascal@19515
|
203 jnc doret
|
pascal@19515
|
204 fail:
|
pascal@19515
|
205 sbb ax,ax ; ax=-1 CF
|
pascal@19515
|
206 cwd
|
pascal@19515
|
207 doret:
|
pascal@19515
|
208 ifndef NO386
|
pascal@19538
|
209 push dx ; see next_chunk:lseek
|
pascal@19538
|
210 push ax
|
pascal@19538
|
211 pop eax
|
pascal@19515
|
212 endif
|
pascal@19515
|
213 ret
|
pascal@19515
|
214
|
pascal@19515
|
215 endp _open
|
pascal@19515
|
216
|
pascal@19515
|
217
|
pascal@19515
|
218 ;***************************************************************
|
pascal@19515
|
219 ;int close(int fd);
|
pascal@19515
|
220 ;***************************************************************
|
pascal@19515
|
221 global _close:near
|
pascal@19515
|
222 proc _close near
|
pascal@19515
|
223
|
pascal@19515
|
224 pop ax ;caller return address
|
pascal@19515
|
225 pop bx ; fd
|
pascal@19515
|
226 push bx
|
pascal@19515
|
227 push ax
|
pascal@19515
|
228 global close:near ; close(bx)
|
pascal@19515
|
229 close:
|
pascal@19515
|
230 mov ah,3Eh
|
pascal@19515
|
231 or bx,bx
|
pascal@19515
|
232 jnz dos
|
pascal@19515
|
233 ret
|
pascal@19515
|
234
|
pascal@19515
|
235 endp _close
|
pascal@19515
|
236
|
pascal@19515
|
237
|
pascal@19515
|
238 ;***************************************************************
|
pascal@19515
|
239 ;int read(int fd, void* data, int sz);
|
pascal@19580
|
240 ;int write(int fd, const void* data, int sz);
|
pascal@19515
|
241 ;***************************************************************
|
pascal@19515
|
242 global _read:near
|
pascal@19515
|
243 proc _read near
|
pascal@19515
|
244
|
pascal@19580
|
245 stc
|
pascal@19634
|
246 db 0B0h ; mov al,im
|
pascal@19580
|
247 global _write:near
|
pascal@19580
|
248 clc
|
pascal@19580
|
249 pop ax ;caller return address
|
pascal@19580
|
250 pop bx ; fd
|
pascal@19580
|
251 pop dx ; data
|
pascal@19515
|
252 pop cx ; sz
|
pascal@19515
|
253 push cx
|
pascal@19515
|
254 push dx
|
pascal@19580
|
255 push bx
|
pascal@19580
|
256 push ax
|
pascal@19580
|
257 mov ah,40h
|
pascal@19580
|
258 sbb ah,0
|
pascal@19515
|
259 jcxz fail
|
pascal@19515
|
260 jmp dos
|
pascal@19515
|
261
|
pascal@19515
|
262 endp _read
|
pascal@19515
|
263
|
pascal@19515
|
264 ;***************************************************************
|
pascal@19825
|
265 ;long lseekset(int fd, unsigned long sz);
|
pascal@19515
|
266 ;***************************************************************
|
pascal@19899
|
267
|
pascal@19571
|
268 global _lseekset:near
|
pascal@19571
|
269 proc _lseekset near
|
pascal@19515
|
270
|
pascal@19515
|
271 pop ax ;caller return address
|
pascal@19515
|
272 pop bx ; fd
|
pascal@19571
|
273 pop dx ; sz lo
|
pascal@19571
|
274 pop cx ; sz hi
|
pascal@19571
|
275 push cx
|
pascal@19515
|
276 push bx
|
pascal@19515
|
277 push ax
|
pascal@19571
|
278 global lseekset:near
|
pascal@19571
|
279 lseekset:
|
pascal@19571
|
280 clc
|
pascal@19634
|
281 db 0B0h ; mov al,im
|
pascal@19571
|
282 global rewind:near
|
pascal@19634
|
283 rewind: ; rewind(bx)
|
pascal@19634
|
284 stc
|
pascal@19571
|
285 mov ax,4200h
|
pascal@19571
|
286 jnc dos
|
pascal@19571
|
287 lseek0: ; lseek0(bx,ax=dir)
|
pascal@19571
|
288 cwd
|
pascal@19571
|
289 xor cx,cx
|
pascal@19515
|
290 jmp dos
|
pascal@19515
|
291
|
pascal@19571
|
292 endp _lseekset
|
pascal@19825
|
293
|
pascal@19825
|
294 ifdef EXTRA
|
pascal@19825
|
295 struc isostate ; struct isostate {
|
pascal@19825
|
296 fd dw ? ; 0 int fd;
|
pascal@19825
|
297 fileofs dd ? ; 2 unsigned long fileofs;
|
pascal@19825
|
298 filesize dd ? ; 6 unsigned long filesize;
|
pascal@19825
|
299 filemod dw ? ;10 unsigned short filemod;
|
pascal@19825
|
300 filename dw ? ;12 char *filename;
|
pascal@19825
|
301 dirofs dd ? ;14 unsigned long dirofs;
|
pascal@19825
|
302 dirsize dd ? ;16 unsigned long dirsize;
|
pascal@19825
|
303 curdirofs dd ? ;20 unsigned long curdirofs;
|
pascal@19825
|
304 curdirsize dd ? ;24 unsigned long curdirsize;
|
pascal@19825
|
305 curpos dd ? ;28 unsigned long curpos;
|
pascal@19825
|
306 ends ; } isostate;
|
pascal@19825
|
307 ;***************************************************************
|
pascal@19825
|
308 ;unsigned long isolseek(const unsigned long *offset);
|
pascal@19825
|
309 ;***************************************************************
|
pascal@19825
|
310 global _isolseek:near
|
pascal@19825
|
311 proc _isolseek near
|
pascal@19825
|
312
|
pascal@19825
|
313 pop ax
|
pascal@19825
|
314 pop bx
|
pascal@19825
|
315 push bx
|
pascal@19825
|
316 push ax
|
pascal@19825
|
317 mov dx,[bx]
|
pascal@19825
|
318 mov cx,[bx+2]
|
pascal@19825
|
319 extrn _isostate:isostate
|
pascal@19825
|
320 mov bx,[_isostate.fd]
|
pascal@19825
|
321 jmp lseekset ; (bx=fd, sz=cx:dx)
|
pascal@19825
|
322
|
pascal@19825
|
323 endp _isolseek
|
pascal@19825
|
324 endif
|
pascal@19515
|
325
|
pascal@19515
|
326
|
pascal@19515
|
327 ;***************************************************************
|
pascal@19515
|
328 ;int strlen(const char* s);
|
pascal@19515
|
329 ;***************************************************************
|
pascal@19515
|
330 global _strlen:near
|
pascal@19515
|
331 proc _strlen near
|
pascal@19515
|
332
|
pascal@19515
|
333 pop ax ;caller return address
|
pascal@19515
|
334 pop bx ; s
|
pascal@19515
|
335 push bx
|
pascal@19515
|
336 push ax
|
pascal@19515
|
337 global strlen:near ; strlen(bx)
|
pascal@19515
|
338 strlen:
|
pascal@19515
|
339 mov cx,bx
|
pascal@19515
|
340 jcxz @@end
|
pascal@19515
|
341 dec bx
|
pascal@19515
|
342 @@lenlp:
|
pascal@19515
|
343 inc bx
|
pascal@19515
|
344 cmp [byte bx],0
|
pascal@19515
|
345 jne @@lenlp
|
pascal@19515
|
346 sub bx,cx
|
pascal@19515
|
347 @@end:
|
pascal@19515
|
348 xchg ax,bx
|
pascal@19515
|
349 ret
|
pascal@19515
|
350
|
pascal@19515
|
351 endp _strlen
|
pascal@19515
|
352
|
pascal@19515
|
353
|
pascal@19515
|
354 ;***************************************************************
|
pascal@19515
|
355 ;int strhead(const char* a,const char* b);
|
pascal@19515
|
356 ;***************************************************************
|
pascal@19515
|
357 global _strhead:near
|
pascal@19515
|
358 proc _strhead near
|
pascal@19515
|
359
|
pascal@19515
|
360 pop cx ;caller return address
|
pascal@19634
|
361 pop bx ; a
|
pascal@19634
|
362 pop ax ; b
|
pascal@19634
|
363 push ax
|
pascal@19515
|
364 push bx
|
pascal@19515
|
365 push cx
|
pascal@19515
|
366 @@loop:
|
pascal@19634
|
367 xchg ax,bx
|
pascal@19515
|
368 mov cl,[bx] ; cl = *b++
|
pascal@19515
|
369 inc bx
|
pascal@19515
|
370 or cl,cl ; clear C
|
pascal@19515
|
371 jz fail ; return 0
|
pascal@19515
|
372 xchg ax,bx
|
pascal@19515
|
373 xor cl,[bx] ; cl -= *a++
|
pascal@19634
|
374 inc bx
|
pascal@19515
|
375 and cl,0dfh ; case insensitive
|
pascal@19634
|
376 jz @@loop
|
pascal@19634
|
377 ret ; return b (is not 0)
|
pascal@19515
|
378
|
pascal@19515
|
379 endp _strhead
|
pascal@19515
|
380
|
pascal@19515
|
381
|
pascal@19515
|
382 ;***************************************************************
|
pascal@19515
|
383 ;char* malloc_or_die(unsigned size);
|
pascal@19515
|
384 ;***************************************************************
|
pascal@19515
|
385 global _malloc_or_die:near
|
pascal@19515
|
386 proc _malloc_or_die near
|
pascal@19515
|
387
|
pascal@19515
|
388 pop ax ;caller return address
|
pascal@19515
|
389 pop cx ; size
|
pascal@19515
|
390 push cx
|
pascal@19515
|
391 push ax
|
pascal@19515
|
392 global malloc_or_die:near ; malloc_or_die(cx)
|
pascal@19515
|
393 malloc_or_die:
|
pascal@19515
|
394 call malloc
|
pascal@19538
|
395 jz _exit
|
pascal@19515
|
396 ret
|
pascal@19515
|
397
|
pascal@19515
|
398 endp _malloc_or_die
|
pascal@19515
|
399
|
pascal@19515
|
400
|
pascal@19515
|
401 ;***************************************************************
|
pascal@19515
|
402 ;int die(const char* msg);
|
pascal@19538
|
403 ;int exit();
|
pascal@19515
|
404 ;int abort();
|
pascal@19515
|
405 ;***************************************************************
|
pascal@19515
|
406 global _die:near
|
pascal@19515
|
407 proc _die near
|
pascal@19515
|
408
|
pascal@19515
|
409 pop ax ;caller return address
|
pascal@19515
|
410 pop bx ; s
|
pascal@19515
|
411 push bx
|
pascal@19515
|
412 push ax
|
pascal@19515
|
413 global die:near ; die(bx)
|
pascal@19515
|
414 die:
|
pascal@19515
|
415 call puts
|
pascal@19538
|
416 global _exit:near
|
pascal@19538
|
417 _exit:
|
pascal@19515
|
418 mov al,[_no_exit]
|
pascal@19515
|
419 cmp al,0
|
pascal@19515
|
420 jne @@hang
|
pascal@19515
|
421 extrn exit:near
|
pascal@19515
|
422 inc ax
|
pascal@19515
|
423 jmp near exit
|
pascal@19515
|
424 @@hang:
|
pascal@19515
|
425 mov bx, offset msg_hang
|
pascal@19515
|
426 call puts
|
pascal@19515
|
427 global _abort:near
|
pascal@19515
|
428 _abort:
|
pascal@19515
|
429 cli
|
pascal@19515
|
430 @@stop:
|
pascal@19515
|
431 hlt
|
pascal@19515
|
432 jmp @@stop
|
pascal@19515
|
433
|
pascal@19515
|
434 endp _die
|
pascal@19515
|
435
|
pascal@19546
|
436 struc image_himem ;struct image_himem {
|
pascal@19546
|
437 fd dw ? ; 0 int fd;
|
pascal@19546
|
438 fallback dd ? ; 2 u32 fallback;
|
pascal@19546
|
439 size dd ? ; 6 u32 size;
|
pascal@19546
|
440 remaining dd ? ;10 u32 remaining;
|
pascal@19546
|
441 buf dd ? ;14 u32 buf;
|
pascal@19546
|
442 bufv dw ? ;18 u32 *bufv;
|
pascal@19546
|
443 errmsg dw ? ;20 char *errmsg;
|
pascal@19546
|
444 chunk_size dd ? ;22 u32 chunk_size;
|
pascal@19546
|
445 next_chunk dw ? ;26 void (*next_chunk)(struct image_himem *);
|
pascal@19546
|
446 state dw ? ;28 u16 state;
|
pascal@19546
|
447 fd2close dw ? ;30 u16 fd2close;
|
pascal@19546
|
448 ends ;};
|
pascal@19515
|
449
|
pascal@19636
|
450 ;***************************************************************
|
pascal@19636
|
451 ;void next_chunk(struct image_himem *di);
|
pascal@19636
|
452 ;***************************************************************
|
pascal@19636
|
453 proc next_chunk near
|
pascal@19636
|
454
|
pascal@19636
|
455 push si
|
pascal@19636
|
456 mov bx,[(image_himem di).fd]
|
pascal@19636
|
457 call close
|
pascal@19636
|
458 ifndef NO386
|
pascal@19636
|
459 xor eax,eax
|
pascal@19636
|
460 else
|
pascal@19636
|
461 xor ax,ax
|
pascal@19636
|
462 endif
|
pascal@19636
|
463 cwd
|
pascal@19636
|
464 mov [(image_himem di).fd],ax
|
pascal@19636
|
465 mov bx,[(image_himem di).state]
|
pascal@19636
|
466 cmp al,[bx] ; ""
|
pascal@19636
|
467 jz @@end
|
pascal@19636
|
468 mov si,bx
|
pascal@19636
|
469 @@scan:
|
pascal@19636
|
470 lodsb
|
pascal@19636
|
471 mov cx,si
|
pascal@19636
|
472 cmp al,','
|
pascal@19636
|
473 jz @@eos
|
pascal@19636
|
474 cmp al,0
|
pascal@19636
|
475 jnz @@scan
|
pascal@19636
|
476 dec cx
|
pascal@19636
|
477 @@eos:
|
pascal@19636
|
478 mov [(image_himem di).state],cx
|
pascal@19636
|
479 dec si
|
pascal@19636
|
480 push [word si]
|
pascal@19636
|
481 mov [byte si],dl ; set temp eos
|
pascal@19636
|
482 call open
|
pascal@19636
|
483 pop [word si] ; restore string
|
pascal@19636
|
484 jc @@die
|
pascal@19636
|
485 mov [(image_himem di).fd],ax
|
pascal@19636
|
486 mov [(image_himem di).fd2close],ax
|
pascal@19636
|
487 xchg ax,bx
|
pascal@19636
|
488 mov ax,4202h ; SEEK_END
|
pascal@19636
|
489 call lseek0
|
pascal@19636
|
490 @@die:
|
pascal@19636
|
491 mov bx,[(image_himem di).errmsg]
|
pascal@19636
|
492 jc die
|
pascal@19636
|
493 mov bx,[(image_himem di).fd]
|
pascal@19636
|
494 ifndef NO386
|
pascal@19636
|
495 push eax
|
pascal@19636
|
496 call rewind
|
pascal@19636
|
497 pop eax
|
pascal@19636
|
498 @@end:
|
pascal@19636
|
499 mov [(image_himem di).chunk_size],eax
|
pascal@19636
|
500 else
|
pascal@19636
|
501 push ax
|
pascal@19636
|
502 push dx
|
pascal@19636
|
503 call rewind
|
pascal@19636
|
504 pop dx
|
pascal@19636
|
505 pop ax
|
pascal@19636
|
506 @@end:
|
pascal@19636
|
507 mov [word (image_himem di).chunk_size],ax
|
pascal@19636
|
508 mov [word ((image_himem di).chunk_size)+2],dx
|
pascal@19636
|
509 endif
|
pascal@19636
|
510 pop si
|
pascal@19636
|
511 ret
|
pascal@19636
|
512
|
pascal@19636
|
513 endp next_chunk
|
pascal@19636
|
514
|
pascal@19636
|
515
|
pascal@19571
|
516 ifdef LARGE_IMAGES
|
pascal@19571
|
517 struc data_himem ;struct data_himem {
|
pascal@19571
|
518 first dd ? ; 0 u32 first;
|
pascal@19571
|
519 cacheidx dw ? ; 4 int cacheidx;
|
pascal@19571
|
520 pageidx dw ? ; 6 int pageidx;
|
pascal@19571
|
521 cache dd 1024 dup(?) ; 8 int cache;
|
pascal@19571
|
522 page dd 1024 dup(?) ;4104 int page;
|
pascal@19571
|
523 ends ;}; // size=8200
|
pascal@19571
|
524 endif
|
pascal@19571
|
525
|
pascal@19515
|
526 ;***************************************************************
|
pascal@19538
|
527 ;u32* malloc_bufv_or_die(struct image_himem *m);
|
pascal@19538
|
528 ;***************************************************************
|
pascal@19538
|
529 global _malloc_bufv_or_die:near
|
pascal@19538
|
530 proc _malloc_bufv_or_die near
|
pascal@19538
|
531
|
pascal@19636
|
532 p386
|
pascal@19538
|
533 pop bx ;caller return address
|
pascal@19538
|
534 pop ax
|
pascal@19538
|
535 push ax
|
pascal@19538
|
536 push bx
|
pascal@19538
|
537 push si
|
pascal@19538
|
538 xchg ax,si
|
pascal@19571
|
539 ifdef LARGE_IMAGES
|
pascal@19571
|
540 mov cx,[word ((image_himem si).size) + 2]
|
pascal@19571
|
541 shr cx,4 ; pages index size = size >> 20
|
pascal@19571
|
542 add cx,8+4096+8
|
pascal@19571
|
543 call malloc_or_die
|
pascal@19571
|
544 mov ecx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19571
|
545 add ecx,[(image_himem si).size]
|
pascal@19571
|
546 shr ecx,12
|
pascal@19571
|
547 mov [curdata],ax
|
pascal@19571
|
548 else
|
pascal@19546
|
549 mov ecx,[(image_himem si).size]
|
pascal@19538
|
550 dec ecx
|
pascal@19538
|
551 shr ecx,12
|
pascal@19538
|
552 inc cx ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19538
|
553 push cx
|
pascal@19538
|
554 inc cx ; cnt+1
|
pascal@19538
|
555 shl cx,2 ; bufv => vcpi => vm86
|
pascal@19538
|
556 ; our malloc zeroes allocated mem: bufv[cnt]=0;
|
pascal@19538
|
557 ; Allocate pages, storing addrs in addrbuf
|
pascal@19538
|
558 call malloc_or_die
|
pascal@19571
|
559 pop cx
|
pascal@19571
|
560 push ax
|
pascal@19571
|
561 endif
|
pascal@19546
|
562 mov [(image_himem si).bufv],ax
|
pascal@19571
|
563 xchg ax,si
|
pascal@19538
|
564 @@vcpi_alloc:
|
pascal@19538
|
565 xor edx,edx
|
pascal@19538
|
566 mov ax,0DE04h
|
pascal@19538
|
567 int 67h
|
pascal@19538
|
568 or ah,ah
|
pascal@19538
|
569 mov bx,offset vcpi_alloc_err
|
pascal@19571
|
570 jnz die
|
pascal@19571
|
571 ; for (i = cnt-1; i >= 0; i--)
|
pascal@19571
|
572 ifdef LARGE_IMAGES
|
pascal@19571
|
573 mov eax,ecx
|
pascal@19571
|
574 dec eax
|
pascal@19571
|
575 else
|
pascal@19571
|
576 mov ax,cx
|
pascal@19571
|
577 dec ax
|
pascal@19571
|
578 cwde
|
pascal@19571
|
579 endif
|
pascal@19571
|
580 shl eax,12 ; i*_4k
|
pascal@19571
|
581 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
|
pascal@19899
|
582 extrn _imgs
|
pascal@19899
|
583 mov bx,offset _imgs+2
|
pascal@19571
|
584 push eax
|
pascal@19571
|
585 add eax,[bx-2+2]
|
pascal@19571
|
586 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
|
pascal@19571
|
587 pop eax ; i*_4k
|
pascal@19571
|
588 jbe @@pmok
|
pascal@19571
|
589 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
|
pascal@19571
|
590 jae @@vcpi_alloc
|
pascal@19571
|
591 @@pmok:
|
pascal@19571
|
592 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
|
pascal@19899
|
593 extrn _imgs
|
pascal@19899
|
594 mov bx,offset _imgs+32+2
|
pascal@19571
|
595 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
596 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
|
pascal@19571
|
597 ja @@initrdok
|
pascal@19571
|
598 mov eax,[bx-2+6] ; initrd.size
|
pascal@19571
|
599 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
600 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
|
pascal@19571
|
601 @@jnc_vcpi_alloc:
|
pascal@19571
|
602 ja @@vcpi_alloc
|
pascal@19571
|
603 @@initrdok:
|
pascal@19571
|
604 ifdef LARGE_IMAGES
|
pascal@19571
|
605 cmp [(data_himem si).first],0
|
pascal@19571
|
606 jne @@notfirst
|
pascal@19571
|
607 mov [(data_himem si).first],edx
|
pascal@19571
|
608 @@notfirst:
|
pascal@19571
|
609 mov bx,[(data_himem si).cacheidx]
|
pascal@19571
|
610 cmp bh,4
|
pascal@19571
|
611 jae @@nextpage
|
pascal@19571
|
612 shl bx,2
|
pascal@19571
|
613 inc [(data_himem si).cacheidx]
|
pascal@19571
|
614 mov [(data_himem bx+si).cache],edx
|
pascal@19571
|
615 loopd @@vcpi_alloc
|
pascal@19571
|
616 mov [(data_himem bx+si).cache],ecx ; last is 0
|
pascal@19571
|
617 @@nextpage:
|
pascal@19571
|
618 and [(data_himem si).cacheidx],0
|
pascal@19571
|
619 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
620 mov [(data_himem bx+si).page],edx
|
pascal@19571
|
621 add [(data_himem si).pageidx],4
|
pascal@19571
|
622 push cx
|
pascal@19571
|
623 lea cx,[(data_himem si).cache]
|
pascal@19571
|
624 ifdef NO386
|
pascal@19571
|
625 push edx
|
pascal@19571
|
626 pop dx
|
pascal@19571
|
627 pop ax
|
pascal@19571
|
628 endif
|
pascal@19571
|
629 call storepage ; storepage(edx,cx)
|
pascal@19571
|
630 pop cx
|
pascal@19571
|
631 or ecx,ecx ; clear C
|
pascal@19571
|
632 jnz @@jnc_vcpi_alloc
|
pascal@19571
|
633 mov [dword (data_himem si).cacheidx],ecx
|
pascal@19571
|
634 xchg ax,si
|
pascal@19571
|
635 else
|
pascal@19571
|
636 mov [si],edx
|
pascal@19571
|
637 lodsd ; si=+4
|
pascal@19538
|
638 loop @@vcpi_alloc
|
pascal@19538
|
639 pop ax
|
pascal@19571
|
640 endif
|
pascal@19538
|
641 pop si
|
pascal@19538
|
642 ret
|
pascal@19636
|
643 ifdef NO386
|
pascal@19636
|
644 p8086
|
pascal@19636
|
645 endif
|
pascal@19538
|
646
|
pascal@19538
|
647 endp _malloc_bufv_or_die
|
pascal@19538
|
648
|
pascal@19538
|
649
|
pascal@19538
|
650 ;***************************************************************
|
pascal@19571
|
651 ; void memcpy_image(struct image_himem *m);
|
pascal@19515
|
652 ;***************************************************************
|
pascal@19571
|
653 global _memcpy_image:near
|
pascal@19571
|
654 proc _memcpy_image near
|
pascal@19515
|
655
|
pascal@19571
|
656 pop ax ;caller return address
|
pascal@19515
|
657 pop bx
|
pascal@19571
|
658 push bx
|
pascal@19571
|
659 push ax
|
pascal@19571
|
660 ifndef NO386
|
pascal@19571
|
661 mov edx,[(image_himem bx).fallback]
|
pascal@19571
|
662 mov eax,[(image_himem bx).buf]
|
pascal@19571
|
663 cmp eax,edx ; if (m->fallback != m->buf)
|
pascal@19571
|
664 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
665 ifdef LARGE_IMAGES
|
pascal@19571
|
666 mov ecx,[(image_himem bx).size]
|
pascal@19571
|
667 memcpy_imagez:
|
pascal@19571
|
668 push ecx
|
pascal@19571
|
669 else
|
pascal@19571
|
670 push [(image_himem bx).size]
|
pascal@19571
|
671 endif
|
pascal@19571
|
672 push eax
|
pascal@19571
|
673 push 0
|
pascal@19571
|
674 call_memcpy32:
|
pascal@19571
|
675 push edx
|
pascal@19571
|
676 else
|
pascal@19571
|
677 mov ax,[word ((image_himem bx).fallback)]
|
pascal@19571
|
678 mov dx,[word ((image_himem bx).fallback)+2]
|
pascal@19571
|
679 mov cx,[word ((image_himem bx).buf)]
|
pascal@19571
|
680 cmp ax,cx ; if (m->fallback != m->buf)
|
pascal@19571
|
681 jnz @@do
|
pascal@19571
|
682 cmp dx,[word ((image_himem bx).buf)+2]
|
pascal@19571
|
683 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
684 @@do:
|
pascal@19571
|
685 push [word ((image_himem bx).size)+2]
|
pascal@19571
|
686 push [word ((image_himem bx).size)]
|
pascal@19571
|
687 push [word ((image_himem bx).buf)+2]
|
pascal@19571
|
688 push cx
|
pascal@19571
|
689 xor cx,cx
|
pascal@19571
|
690 push cx
|
pascal@19571
|
691 call_memcpy32:
|
pascal@19571
|
692 push dx
|
pascal@19571
|
693 push ax
|
pascal@19571
|
694 ifdef LARGE_IMAGES
|
pascal@19571
|
695 jmp @@memcpy
|
pascal@19571
|
696 memcpy_imagez:
|
pascal@19636
|
697 p386
|
pascal@19571
|
698 push ecx
|
pascal@19571
|
699 push eax
|
pascal@19571
|
700 push 0
|
pascal@19571
|
701 push edx
|
pascal@19636
|
702 ifdef NO386
|
pascal@19636
|
703 p8086
|
pascal@19636
|
704 endif
|
pascal@19571
|
705 endif
|
pascal@19571
|
706 endif
|
pascal@19571
|
707 @@memcpy:
|
pascal@19571
|
708 extrn _memcpy32:near
|
pascal@19571
|
709 call near _memcpy32
|
pascal@19571
|
710 add sp,14
|
pascal@19571
|
711 @@skip:
|
pascal@19571
|
712 ret
|
pascal@19571
|
713
|
pascal@19571
|
714 endp _memcpy_image
|
pascal@19571
|
715
|
pascal@19571
|
716 ;***************************************************************
|
pascal@19571
|
717 ;void storepage(u32 *dst, u16 src);
|
pascal@19571
|
718 ;***************************************************************
|
pascal@19571
|
719 global _storepage:near
|
pascal@19571
|
720 proc _storepage near
|
pascal@19571
|
721
|
pascal@19571
|
722 pop ax ;caller return address
|
pascal@19571
|
723 pop bx
|
pascal@19571
|
724 pop cx
|
pascal@19571
|
725 push cx
|
pascal@19571
|
726 push bx
|
pascal@19571
|
727 push ax
|
pascal@19571
|
728 ifndef NO386
|
pascal@19571
|
729 mov edx,[bx]
|
pascal@19571
|
730 else
|
pascal@19571
|
731 mov ax,[bx]
|
pascal@19571
|
732 mov dx,[bx+2]
|
pascal@19571
|
733 endif
|
pascal@19571
|
734 storepage:
|
pascal@19571
|
735 ifndef NO386
|
pascal@19571
|
736 push 0
|
pascal@19571
|
737 push 4096
|
pascal@19571
|
738 push 0
|
pascal@19571
|
739 else
|
pascal@19571
|
740 xor bx,bx
|
pascal@19571
|
741 push bx
|
pascal@19571
|
742 mov bh,4096/256
|
pascal@19571
|
743 push bx
|
pascal@19571
|
744 xor bx,bx
|
pascal@19571
|
745 push bx
|
pascal@19571
|
746 endif
|
pascal@19571
|
747 push cx
|
pascal@19571
|
748 push ds
|
pascal@19571
|
749 jmp call_memcpy32
|
pascal@19571
|
750
|
pascal@19571
|
751 endp _storepage
|
pascal@19571
|
752
|
pascal@19571
|
753
|
pascal@19571
|
754 ifdef LARGE_IMAGES
|
pascal@19636
|
755 p386
|
pascal@19571
|
756 ;***************************************************************
|
pascal@19571
|
757 ;void reset_bufv(u32 *p);
|
pascal@19571
|
758 ;***************************************************************
|
pascal@19571
|
759 global _reset_bufv:near
|
pascal@19571
|
760 proc _reset_bufv near
|
pascal@19571
|
761
|
pascal@19634
|
762 pop ax ;caller return address
|
pascal@19634
|
763 pop bx
|
pascal@19634
|
764 push bx
|
pascal@19515
|
765 push ax
|
pascal@19634
|
766 mov [curdata],bx
|
pascal@19571
|
767 and [dword (data_himem bx).cacheidx],0
|
pascal@19571
|
768 ret
|
pascal@19571
|
769
|
pascal@19571
|
770 endp _reset_bufv
|
pascal@19571
|
771
|
pascal@19571
|
772 ;***************************************************************
|
pascal@19571
|
773 ;u32* prev_bufv();
|
pascal@19571
|
774 ;u32* prev_bufv();
|
pascal@19571
|
775 ;***************************************************************
|
pascal@19571
|
776 global _prev_bufv:near
|
pascal@19571
|
777 global _next_bufv:near
|
pascal@19571
|
778 proc _prev_bufv near
|
pascal@19571
|
779
|
pascal@19571
|
780 stc
|
pascal@19571
|
781 db 73h ; jnc
|
pascal@19571
|
782 _next_bufv:
|
pascal@19571
|
783 clc
|
pascal@19571
|
784 sbb ax,ax
|
pascal@19571
|
785 stc
|
pascal@19571
|
786 rcl ax,1 ; -1/+1
|
pascal@19571
|
787 xor ecx,ecx
|
pascal@19571
|
788 push si
|
pascal@19571
|
789 mov si,[curdata]
|
pascal@19571
|
790 add ax,[(data_himem si).cacheidx]
|
pascal@19571
|
791 test ax,0fc00h
|
pascal@19571
|
792 jz @@gotpage
|
pascal@19571
|
793 push ax ; FFFF / 0400
|
pascal@19571
|
794 sar ax,8 ; FFFC / 0004
|
pascal@19571
|
795 and al,0fch
|
pascal@19571
|
796 add [(data_himem si).pageidx],ax
|
pascal@19571
|
797 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
798 lea bx,[(data_himem bx+si).page]
|
pascal@19571
|
799 mov edx,ds
|
pascal@19571
|
800 shl edx,4
|
pascal@19571
|
801 lea cx,[(data_himem si).cache]
|
pascal@19571
|
802 add edx,ecx
|
pascal@19571
|
803 mov eax,[bx]
|
pascal@19571
|
804 or eax,eax
|
pascal@19571
|
805 jnz @@pageok
|
pascal@19571
|
806 pop ax
|
pascal@19571
|
807 xchg ax,bx
|
pascal@19571
|
808 pop si
|
pascal@19571
|
809 ret
|
pascal@19571
|
810 @@pageok:
|
pascal@19571
|
811 mov cx,4096
|
pascal@19571
|
812 call memcpy_imagez ; get page
|
pascal@19571
|
813 pop ax ; FFFF / 0400
|
pascal@19571
|
814 cbw
|
pascal@19571
|
815 shr ax,6 ; 03FF / 0000
|
pascal@19571
|
816 @@gotpage:
|
pascal@19571
|
817 mov [(data_himem si).cacheidx],ax
|
pascal@19571
|
818 shl ax,2
|
pascal@19571
|
819 xchg ax,bx
|
pascal@19571
|
820 lea ax,[(data_himem bx+si).cache]
|
pascal@19571
|
821 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
|
pascal@19571
|
822 jnz @@notfirst2
|
pascal@19571
|
823 xchg ax,si ; &first
|
pascal@19571
|
824 @@notfirst2:
|
pascal@19571
|
825 pop si
|
pascal@19571
|
826 ret
|
pascal@19636
|
827 ifdef NO386
|
pascal@19636
|
828 p8086
|
pascal@19636
|
829 endif
|
pascal@19571
|
830
|
pascal@19571
|
831 endp _prev_bufv
|
pascal@19571
|
832 endif
|
pascal@19571
|
833
|
pascal@19571
|
834
|
pascal@19571
|
835 ;***************************************************************
|
pascal@19515
|
836 ;void open_image(const char *name, struct image_himem *m);
|
pascal@19515
|
837 ;***************************************************************
|
pascal@19515
|
838 global _open_image:near
|
pascal@19515
|
839 proc _open_image near
|
pascal@19515
|
840
|
pascal@19515
|
841 arg fname :word, \
|
pascal@19515
|
842 m :word = PARAM_SIZE
|
pascal@19515
|
843
|
pascal@19515
|
844 push bp
|
pascal@19515
|
845 mov bp,sp
|
pascal@19515
|
846 push si di
|
pascal@19515
|
847 ifndef NO386
|
pascal@19515
|
848 xor eax,eax ; 1st loop flag + eos
|
pascal@19515
|
849 else
|
pascal@19515
|
850 xor ax,ax ; 1st loop flag + eos
|
pascal@19515
|
851 endif
|
pascal@19515
|
852 mov di,[m]
|
pascal@19546
|
853 cmp [(image_himem di).fd],ax
|
pascal@19515
|
854 jnz @@alreadydone
|
pascal@19515
|
855 ifndef NO386
|
pascal@19546
|
856 mov [(image_himem di).size],eax ; m->size = 0L
|
pascal@19515
|
857 else
|
pascal@19546
|
858 mov [word (image_himem di).size],ax ; m->size = 0L
|
pascal@19546
|
859 mov [word ((image_himem di).size)+2],ax
|
pascal@19515
|
860 endif
|
pascal@19571
|
861 mov [(image_himem di).next_chunk],offset next_chunk
|
pascal@19515
|
862 mov si,[fname]
|
pascal@19546
|
863 mov [(image_himem di).state],si
|
pascal@19515
|
864 @@next:
|
pascal@19515
|
865 push di
|
pascal@19546
|
866 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
867 pop di
|
pascal@19515
|
868 ifndef NO386
|
pascal@19515
|
869 add eax,3
|
pascal@19515
|
870 and al,0FCh
|
pascal@19546
|
871 add [(image_himem di).size],eax ; m->size += m->chunk_size
|
pascal@19515
|
872 or eax,eax
|
pascal@19515
|
873 jnz @@next
|
pascal@19515
|
874 else
|
pascal@19515
|
875 mov cx,ax
|
pascal@19515
|
876 or cx,dx
|
pascal@19515
|
877 add ax,3
|
pascal@19515
|
878 adc dx,0
|
pascal@19515
|
879 and al,0FCh
|
pascal@19546
|
880 add [word (image_himem di).size],ax ; m->size += m->chunk_size
|
pascal@19546
|
881 adc [word ((image_himem di).size)+2],dx
|
pascal@19538
|
882 inc cx ; jcxnz
|
pascal@19515
|
883 loop @@next
|
pascal@19515
|
884 endif
|
pascal@19546
|
885 mov [(image_himem di).state],si
|
pascal@19515
|
886 push di
|
pascal@19546
|
887 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
888 pop di
|
pascal@19515
|
889 @@alreadydone:
|
pascal@19515
|
890 push ax
|
pascal@19515
|
891 image_done:
|
pascal@19515
|
892 pop ax
|
pascal@19515
|
893 pop di si bp
|
pascal@19515
|
894 ret
|
pascal@19515
|
895
|
pascal@19515
|
896 endp _open_image
|
pascal@19515
|
897
|
pascal@19515
|
898
|
pascal@19515
|
899 ;***************************************************************
|
pascal@19515
|
900 ;int read_image(struct image_himem *m, void* data, int sz);
|
pascal@19515
|
901 ;***************************************************************
|
pascal@19515
|
902 global _read_image:near
|
pascal@19515
|
903 proc _read_image near
|
pascal@19515
|
904
|
pascal@19515
|
905 arg m :word, \
|
pascal@19515
|
906 data :word, \
|
pascal@19515
|
907 sz :word = PARAM_SIZE
|
pascal@19515
|
908
|
pascal@19515
|
909 push bp
|
pascal@19515
|
910 mov bp,sp
|
pascal@19515
|
911 push si di
|
pascal@19515
|
912 ifndef NO386
|
pascal@19515
|
913 push 0 ; return value
|
pascal@19515
|
914 else
|
pascal@19515
|
915 xor ax,ax
|
pascal@19515
|
916 push ax
|
pascal@19515
|
917 endif
|
pascal@19515
|
918 mov di,[m]
|
pascal@19515
|
919 @@loop:
|
pascal@19538
|
920 ifndef NO386
|
pascal@19538
|
921 xor ecx,ecx
|
pascal@19538
|
922 mov cx,[word sz]
|
pascal@19538
|
923 @@chksz:
|
pascal@19546
|
924 mov eax,[(image_himem di).chunk_size]
|
pascal@19538
|
925 cmp ecx,eax
|
pascal@19538
|
926 jb @@szok
|
pascal@19538
|
927 xchg eax,ecx
|
pascal@19538
|
928 else
|
pascal@19538
|
929 mov cx,[word sz]
|
pascal@19538
|
930 @@chksz:
|
pascal@19546
|
931 mov ax,[word (image_himem di).chunk_size]
|
pascal@19538
|
932 cmp cx,ax
|
pascal@19515
|
933 jb @@szok
|
pascal@19546
|
934 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
|
pascal@19515
|
935 jne @@szok
|
pascal@19515
|
936 xchg ax,cx
|
pascal@19538
|
937 endif
|
pascal@19515
|
938 @@szok:
|
pascal@19538
|
939 jcxz image_done
|
pascal@19538
|
940 push cx
|
pascal@19515
|
941 push [word data]
|
pascal@19515
|
942 push [word di]
|
pascal@19515
|
943 call _read
|
pascal@19538
|
944 pop dx
|
pascal@19515
|
945 pop bx
|
pascal@19538
|
946 pop dx
|
pascal@19538
|
947 jc image_done
|
pascal@19515
|
948 add bx,ax
|
pascal@19515
|
949 xor cx,cx
|
pascal@19538
|
950 ifndef NO386
|
pascal@19538
|
951 cwde ; ax < 8000h
|
pascal@19546
|
952 sub [(image_himem di).chunk_size],eax
|
pascal@19538
|
953 else
|
pascal@19538
|
954 cwd ; ax < 8000h
|
pascal@19546
|
955 sub [word (image_himem di).chunk_size],ax
|
pascal@19546
|
956 sbb [word ((image_himem di).chunk_size)+2],dx
|
pascal@19538
|
957 jnz @@fill
|
pascal@19546
|
958 cmp [word (image_himem di).chunk_size],dx
|
pascal@19538
|
959 endif
|
pascal@19538
|
960 jnz @@fill
|
pascal@19538
|
961 dec cx
|
pascal@19515
|
962 @@fill:
|
pascal@19515
|
963 test al,3
|
pascal@19515
|
964 je @@filled
|
pascal@19538
|
965 mov [bx],dl
|
pascal@19515
|
966 inc bx
|
pascal@19515
|
967 inc ax
|
pascal@19515
|
968 jmp @@fill
|
pascal@19515
|
969 @@filled:
|
pascal@19538
|
970 ifndef NO386
|
pascal@19546
|
971 sub [(image_himem di).remaining],eax
|
pascal@19538
|
972 else
|
pascal@19546
|
973 sub [word (image_himem di).remaining],ax
|
pascal@19546
|
974 sbb [word ((image_himem di).remaining)+2],dx
|
pascal@19538
|
975 endif
|
pascal@19515
|
976 add [bp-4-2],ax
|
pascal@19515
|
977 add [word data],ax
|
pascal@19515
|
978 sub [word sz],ax
|
pascal@19538
|
979 pushf
|
pascal@19546
|
980 and cx,[(image_himem di).next_chunk]
|
pascal@19538
|
981 jz @@same_chunk
|
pascal@19515
|
982 push di
|
pascal@19515
|
983 call cx ; m->next_chunk()
|
pascal@19515
|
984 pop di
|
pascal@19538
|
985 @@same_chunk:
|
pascal@19538
|
986 popf
|
pascal@19538
|
987 jnz @@loop
|
pascal@19538
|
988 jmp image_done
|
pascal@19515
|
989
|
pascal@19515
|
990 endp _read_image
|
pascal@19515
|
991
|
pascal@19515
|
992
|
pascal@19515
|
993 ;***************************************************************
|
pascal@19515
|
994 ;unsigned long strtol(const char *s);
|
pascal@19515
|
995 ;***************************************************************
|
pascal@19515
|
996 global _strtol:near
|
pascal@19515
|
997 proc _strtol near
|
pascal@19515
|
998
|
pascal@19515
|
999 ifndef NO386
|
pascal@19515
|
1000 pop ax ;caller return address
|
pascal@19515
|
1001 pop cx ; s
|
pascal@19515
|
1002 push cx
|
pascal@19515
|
1003 push ax
|
pascal@19515
|
1004 xor ebx,ebx
|
pascal@19515
|
1005 push si
|
pascal@19634
|
1006 jcxz @@end
|
pascal@19515
|
1007 mov si,cx
|
pascal@19515
|
1008 xor ecx,ecx
|
pascal@19515
|
1009 xor eax,eax
|
pascal@19515
|
1010 lodsb
|
pascal@19634
|
1011 mov dx,ax
|
pascal@19634
|
1012 or al,20h
|
pascal@19634
|
1013 cmp al,'n' ; vga=normal
|
pascal@19538
|
1014 je @@vga
|
pascal@19538
|
1015 dec cx
|
pascal@19634
|
1016 cmp al,'e' ; vga=extended
|
pascal@19538
|
1017 je @@vga
|
pascal@19538
|
1018 dec cx
|
pascal@19634
|
1019 cmp al,'a' ; vga=ask
|
pascal@19538
|
1020 jne @@notvga
|
pascal@19538
|
1021 @@vga:
|
pascal@19538
|
1022 dec cx
|
pascal@19538
|
1023 xchg ax,cx
|
pascal@19538
|
1024 cwd
|
pascal@19634
|
1025 jmp @@popsiret
|
pascal@19538
|
1026 @@notvga:
|
pascal@19538
|
1027 mov cx,10 ; radix
|
pascal@19634
|
1028 xchg ax,dx
|
pascal@19515
|
1029 cmp al,'+'
|
pascal@19515
|
1030 je @@radixskip
|
pascal@19515
|
1031 cmp al,'-'
|
pascal@19515
|
1032 clc
|
pascal@19515
|
1033 jne @@radixkeep
|
pascal@19515
|
1034 stc
|
pascal@19515
|
1035 @@radixskip:
|
pascal@19515
|
1036 lodsb
|
pascal@19515
|
1037 @@radixkeep:
|
pascal@19515
|
1038 pushf
|
pascal@19515
|
1039 cmp al,'0'
|
pascal@19515
|
1040 jne @@radixok
|
pascal@19515
|
1041 mov cl,8
|
pascal@19515
|
1042 lodsb
|
pascal@19634
|
1043 or al,20h
|
pascal@19634
|
1044 cmp al,'x'
|
pascal@19515
|
1045 jne @@radixok
|
pascal@19515
|
1046 mov cl,16
|
pascal@19515
|
1047 @@strtollp:
|
pascal@19515
|
1048 lodsb
|
pascal@19515
|
1049 @@radixok:
|
pascal@19634
|
1050 or al,20h
|
pascal@19515
|
1051 sub al,'0'
|
pascal@19515
|
1052 jb @@endstrtol
|
pascal@19515
|
1053 cmp al,9
|
pascal@19515
|
1054 jbe @@digitok
|
pascal@19515
|
1055 cmp al,'a'-'0'
|
pascal@19515
|
1056 jb @@endstrtol
|
pascal@19515
|
1057 sub al,'a'-'0'-10
|
pascal@19515
|
1058 @@digitok:
|
pascal@19515
|
1059 cmp al,cl
|
pascal@19515
|
1060 jae @@endstrtol
|
pascal@19515
|
1061 xchg eax,ebx
|
pascal@19515
|
1062 mul ecx
|
pascal@19515
|
1063 add eax,ebx
|
pascal@19515
|
1064 xchg eax,ebx
|
pascal@19515
|
1065 jmp @@strtollp
|
pascal@19515
|
1066 @@endstrtol:
|
pascal@19515
|
1067 mov cl,10
|
pascal@19515
|
1068 cmp al,'k'-'a'+10
|
pascal@19515
|
1069 je @@shift
|
pascal@19515
|
1070 mov cl,20
|
pascal@19515
|
1071 cmp al,'m'-'a'+10
|
pascal@19515
|
1072 je @@shift
|
pascal@19515
|
1073 mov cl,30
|
pascal@19515
|
1074 cmp al,'g'-'a'+10
|
pascal@19515
|
1075 jne @@noshift
|
pascal@19515
|
1076 @@shift:
|
pascal@19515
|
1077 shl ebx,cl
|
pascal@19515
|
1078 @@noshift:
|
pascal@19515
|
1079 popf
|
pascal@19515
|
1080 jnc @@end
|
pascal@19515
|
1081 neg ebx
|
pascal@19515
|
1082 @@end:
|
pascal@19515
|
1083 push ebx
|
pascal@19515
|
1084 pop ax
|
pascal@19515
|
1085 pop dx
|
pascal@19634
|
1086 @@popsiret:
|
pascal@19515
|
1087 pop si
|
pascal@19515
|
1088 else
|
pascal@19515
|
1089 pop ax ;caller return address
|
pascal@19515
|
1090 pop cx ; s
|
pascal@19515
|
1091 push cx
|
pascal@19515
|
1092 push ax
|
pascal@19515
|
1093 push si
|
pascal@19515
|
1094 push di
|
pascal@19515
|
1095 xor ax,ax
|
pascal@19515
|
1096 cwd
|
pascal@19634
|
1097 jcxz @@goend
|
pascal@19515
|
1098 xchg ax,di
|
pascal@19515
|
1099 mov si,cx
|
pascal@19538
|
1100 lodsb
|
pascal@19634
|
1101 mov bx,ax
|
pascal@19634
|
1102 or al,20h
|
pascal@19538
|
1103 mov cx,-1
|
pascal@19634
|
1104 cmp al,'n' ; vga=normal
|
pascal@19538
|
1105 je @@vga
|
pascal@19538
|
1106 dec cx
|
pascal@19634
|
1107 cmp al,'e' ; vga=extended
|
pascal@19538
|
1108 je @@vga
|
pascal@19538
|
1109 dec cx
|
pascal@19634
|
1110 cmp al,'a' ; vga=ask
|
pascal@19538
|
1111 jne @@notvga
|
pascal@19538
|
1112 @@vga:
|
pascal@19538
|
1113 xchg ax,cx
|
pascal@19538
|
1114 @@goend:
|
pascal@19634
|
1115 jmp @@popdisiret
|
pascal@19538
|
1116 @@notvga:
|
pascal@19515
|
1117 mov cx,10 ; radix
|
pascal@19634
|
1118 xchg ax,bx
|
pascal@19515
|
1119 cmp al,'+'
|
pascal@19515
|
1120 je @@radixskip
|
pascal@19515
|
1121 cmp al,'-'
|
pascal@19515
|
1122 clc
|
pascal@19515
|
1123 jne @@radixkeep
|
pascal@19515
|
1124 stc
|
pascal@19515
|
1125 @@radixskip:
|
pascal@19515
|
1126 lodsb
|
pascal@19515
|
1127 @@radixkeep:
|
pascal@19515
|
1128 pushf
|
pascal@19515
|
1129 cmp al,'0'
|
pascal@19515
|
1130 jne @@radixok
|
pascal@19515
|
1131 mov cl,8
|
pascal@19515
|
1132 lodsb
|
pascal@19634
|
1133 mov al,20h
|
pascal@19634
|
1134 cmp al,'x'
|
pascal@19515
|
1135 jne @@radixok
|
pascal@19515
|
1136 mov cl,16
|
pascal@19515
|
1137 @@strtollp:
|
pascal@19515
|
1138 lodsb
|
pascal@19515
|
1139 @@radixok:
|
pascal@19634
|
1140 or al,20h
|
pascal@19515
|
1141 sub al,'0'
|
pascal@19515
|
1142 jb @@endstrtol
|
pascal@19515
|
1143 cmp al,9
|
pascal@19515
|
1144 jbe @@digitok
|
pascal@19515
|
1145 cmp al,'a'-'0'
|
pascal@19515
|
1146 jb @@endstrtol
|
pascal@19515
|
1147 sub al,'a'-'0'-10
|
pascal@19515
|
1148 @@digitok:
|
pascal@19515
|
1149 cmp al,cl
|
pascal@19515
|
1150 jae @@endstrtol
|
pascal@19515
|
1151
|
pascal@19515
|
1152 push ax
|
pascal@19515
|
1153 push si
|
pascal@19515
|
1154 push dx
|
pascal@19515
|
1155 xchg ax,di
|
pascal@19515
|
1156 mul cx
|
pascal@19515
|
1157 xchg ax,di
|
pascal@19515
|
1158 xchg ax,dx
|
pascal@19515
|
1159 xchg ax,si
|
pascal@19515
|
1160 pop ax
|
pascal@19515
|
1161 mul cx
|
pascal@19515
|
1162 add ax,si
|
pascal@19515
|
1163 pop si
|
pascal@19515
|
1164 xchg ax,dx
|
pascal@19515
|
1165 pop ax
|
pascal@19515
|
1166 mov ah,0
|
pascal@19515
|
1167 add di,ax
|
pascal@19515
|
1168 adc dx,0
|
pascal@19515
|
1169
|
pascal@19515
|
1170 jmp @@strtollp
|
pascal@19515
|
1171 @@endstrtol:
|
pascal@19515
|
1172 mov cl,10
|
pascal@19515
|
1173 cmp al,'k'-'a'+10
|
pascal@19515
|
1174 je @@shift
|
pascal@19515
|
1175 mov cl,20
|
pascal@19515
|
1176 cmp al,'m'-'a'+10
|
pascal@19515
|
1177 je @@shift
|
pascal@19515
|
1178 mov cl,30
|
pascal@19515
|
1179 cmp al,'g'-'a'+10
|
pascal@19515
|
1180 jne @@noshift
|
pascal@19515
|
1181 @@shift:
|
pascal@19515
|
1182 rcl di,1
|
pascal@19515
|
1183 shl dx,1
|
pascal@19515
|
1184 loop @@shift
|
pascal@19515
|
1185 @@noshift:
|
pascal@19515
|
1186 popf
|
pascal@19515
|
1187 jnc @@end
|
pascal@19515
|
1188 not dx
|
pascal@19515
|
1189 neg di
|
pascal@19515
|
1190 jne @@end
|
pascal@19515
|
1191 inc dx
|
pascal@19515
|
1192 @@end:
|
pascal@19515
|
1193 xchg ax,di
|
pascal@19634
|
1194 @@popdisiret:
|
pascal@19515
|
1195 pop di
|
pascal@19515
|
1196 pop si
|
pascal@19515
|
1197 endif
|
pascal@19515
|
1198 ret
|
pascal@19515
|
1199
|
pascal@19515
|
1200 endp _strtol
|
pascal@19515
|
1201
|
pascal@19515
|
1202
|
pascal@19515
|
1203 ifdef NO386
|
pascal@19515
|
1204 ;***************************************************************
|
pascal@19515
|
1205 ;u16 topseg();
|
pascal@19515
|
1206 ;***************************************************************
|
pascal@19515
|
1207 global _topseg:near
|
pascal@19515
|
1208 proc _topseg near
|
pascal@19515
|
1209
|
pascal@19515
|
1210 int 12h
|
pascal@19515
|
1211 jnc @@max640k
|
pascal@19515
|
1212 mov ax,640 ; 9000
|
pascal@19515
|
1213 @@max640k:
|
pascal@19634
|
1214 dec ax
|
pascal@19515
|
1215 and al,0C0h
|
pascal@19515
|
1216 mov cl,6
|
pascal@19515
|
1217 shl ax,cl
|
pascal@19515
|
1218 ret
|
pascal@19515
|
1219
|
pascal@19515
|
1220 endp _topseg
|
pascal@19515
|
1221 endif
|
pascal@19515
|
1222
|
pascal@19825
|
1223 ifdef EXTRA
|
pascal@19825
|
1224 p8086
|
pascal@19825
|
1225
|
pascal@19825
|
1226 ;***************************************************************
|
pascal@19825
|
1227 ;int strcmp(const char* a,const char* b);
|
pascal@19825
|
1228 ;***************************************************************
|
pascal@19825
|
1229 global _strcmp:near
|
pascal@19825
|
1230 proc _strcmp near
|
pascal@19825
|
1231
|
pascal@19825
|
1232 pop cx ;caller return address
|
pascal@19825
|
1233 pop bx ; a
|
pascal@19825
|
1234 pop ax ; b
|
pascal@19825
|
1235 push ax
|
pascal@19825
|
1236 push bx
|
pascal@19825
|
1237 push cx
|
pascal@19825
|
1238 push si
|
pascal@19825
|
1239 xchg ax,si
|
pascal@19825
|
1240 sub bx,si
|
pascal@19825
|
1241 @@lp:
|
pascal@19825
|
1242 mov al,[si]
|
pascal@19825
|
1243 sub al,[bx+si]
|
pascal@19825
|
1244 jnz @@out
|
pascal@19825
|
1245 lodsb
|
pascal@19825
|
1246 cmp al,0
|
pascal@19825
|
1247 jne @@lp
|
pascal@19825
|
1248 @@out:
|
pascal@19825
|
1249 cbw
|
pascal@19825
|
1250 pop si
|
pascal@19825
|
1251 ret
|
pascal@19825
|
1252
|
pascal@19825
|
1253 endp _strcmp
|
pascal@19825
|
1254
|
pascal@19825
|
1255
|
pascal@19825
|
1256 ;***************************************************************
|
pascal@19825
|
1257 ;char strstr(const char* a,const char* b);
|
pascal@19825
|
1258 ;***************************************************************
|
pascal@19825
|
1259 global _strstr:near
|
pascal@19825
|
1260 proc _strstr near
|
pascal@19825
|
1261
|
pascal@19825
|
1262 pop ax ;caller return address
|
pascal@19825
|
1263 pop cx ; a
|
pascal@19825
|
1264 pop dx ; b
|
pascal@19825
|
1265 push dx
|
pascal@19825
|
1266 push cx
|
pascal@19825
|
1267 push ax
|
pascal@19825
|
1268 push si
|
pascal@19825
|
1269 @@loop:
|
pascal@19825
|
1270 xor ax,ax
|
pascal@19825
|
1271 mov si,cx
|
pascal@19825
|
1272 cmp [si],al ; *a
|
pascal@19825
|
1273 jz @@end ; return ax = NULL
|
pascal@19825
|
1274 mov bx,dx
|
pascal@19825
|
1275 sub bx,si
|
pascal@19825
|
1276 @@match:
|
pascal@19825
|
1277 or ah,[bx+si] ; *b
|
pascal@19825
|
1278 jz @@found
|
pascal@19825
|
1279 lodsb
|
pascal@19825
|
1280 sub ah,al
|
pascal@19825
|
1281 jz @@match
|
pascal@19825
|
1282 inc cx
|
pascal@19825
|
1283 jmp @@loop
|
pascal@19825
|
1284 @@found:
|
pascal@19825
|
1285 xchg ax,cx
|
pascal@19825
|
1286 @@end:
|
pascal@19825
|
1287 pop si
|
pascal@19825
|
1288 ret
|
pascal@19825
|
1289
|
pascal@19825
|
1290 endp _strstr
|
pascal@19825
|
1291
|
pascal@19825
|
1292
|
pascal@19825
|
1293 ;***************************************************************
|
pascal@19825
|
1294 ;char *progname(void)
|
pascal@19825
|
1295 ;***************************************************************
|
pascal@19825
|
1296 global _progname:near
|
pascal@19825
|
1297 proc _progname near
|
pascal@19825
|
1298
|
pascal@19825
|
1299 push si di es
|
pascal@19825
|
1300 mov ah,30h
|
pascal@19825
|
1301 int 21h
|
pascal@19875
|
1302 xor di,di
|
pascal@19825
|
1303 cmp al,3
|
pascal@19874
|
1304 mov ax,di
|
pascal@19825
|
1305 jb @@skip
|
pascal@19873
|
1306 ;mov es,[cs:2Ch]
|
pascal@19874
|
1307 mov es,[di+2Ch]
|
pascal@19825
|
1308 mov cx,-1
|
pascal@19870
|
1309 @@loop:
|
pascal@19825
|
1310 repne
|
pascal@19825
|
1311 scasb
|
pascal@19825
|
1312 scasb
|
pascal@19870
|
1313 jne @@loop
|
pascal@19870
|
1314 inc di
|
pascal@19870
|
1315 inc di
|
pascal@19870
|
1316 mov si,di ; progname @es:di
|
pascal@19870
|
1317 repne
|
pascal@19870
|
1318 scasb
|
pascal@19870
|
1319 mov cx,di
|
pascal@19874
|
1320 sub cx,si ; progname len
|
pascal@19870
|
1321 call malloc_or_die ; keep cx
|
pascal@19870
|
1322 mov di,ax
|
pascal@19825
|
1323 push ds
|
pascal@19825
|
1324 push es
|
pascal@19825
|
1325 pop ds
|
pascal@19825
|
1326 pop es
|
pascal@19870
|
1327 rep
|
pascal@19870
|
1328 movsb
|
pascal@19870
|
1329 push es
|
pascal@19825
|
1330 pop ds
|
pascal@19825
|
1331 @@skip:
|
pascal@19825
|
1332 pop es di si
|
pascal@19825
|
1333 ret
|
pascal@19825
|
1334
|
pascal@19825
|
1335 endp _progname
|
pascal@19825
|
1336
|
pascal@19825
|
1337
|
pascal@19825
|
1338 ;***************************************************************
|
pascal@19875
|
1339 ;void chdirname(char *path)
|
pascal@19825
|
1340 ;***************************************************************
|
pascal@19825
|
1341 global _chdirname:near
|
pascal@19825
|
1342 proc _chdirname near
|
pascal@19825
|
1343
|
pascal@19825
|
1344 pop ax
|
pascal@19825
|
1345 pop bx
|
pascal@19825
|
1346 push bx
|
pascal@19825
|
1347 push ax
|
pascal@19825
|
1348
|
pascal@19825
|
1349 cmp [byte bx+1],3Ah
|
pascal@19825
|
1350 jne @@nodisk
|
pascal@19875
|
1351 mov dl,20h
|
pascal@19875
|
1352 or dl,[bx]
|
pascal@19825
|
1353 sub dl,61h
|
pascal@19825
|
1354 mov ah,0Eh
|
pascal@19825
|
1355 int 21h
|
pascal@19825
|
1356 inc bx
|
pascal@19825
|
1357 inc bx
|
pascal@19825
|
1358 @@nodisk:
|
pascal@19825
|
1359 xor cx,cx
|
pascal@19825
|
1360 @@next:
|
pascal@19825
|
1361 mov al,[bx]
|
pascal@19825
|
1362 cmp al,5Ch
|
pascal@19825
|
1363 jne @@tsteos
|
pascal@19875
|
1364 mov dx,bx
|
pascal@19875
|
1365 inc cx
|
pascal@19825
|
1366 @@tsteos:
|
pascal@19825
|
1367 inc bx
|
pascal@19825
|
1368 or al,al
|
pascal@19825
|
1369 jnz @@next
|
pascal@19825
|
1370 jcxz @@end
|
pascal@19875
|
1371 mov bx,dx
|
pascal@19825
|
1372 push [word bx]
|
pascal@19825
|
1373 mov [bx],al
|
pascal@19875
|
1374 stc
|
pascal@19875
|
1375 mov ax,713Bh ; chdir long filename
|
pascal@19875
|
1376 int 21h
|
pascal@19875
|
1377 mov ah,3Bh ; chdir
|
pascal@19875
|
1378 jnc chdirdone
|
pascal@19875
|
1379 int 21h
|
pascal@19875
|
1380 chdirdone:
|
pascal@19825
|
1381 pop [word bx]
|
pascal@19825
|
1382 @@end:
|
pascal@19825
|
1383 ret
|
pascal@19825
|
1384
|
pascal@19825
|
1385 endp _chdirname
|
pascal@19825
|
1386
|
pascal@19825
|
1387
|
pascal@19825
|
1388 ;***************************************************************
|
pascal@19825
|
1389 ;char *ultoa(unsigned long n);
|
pascal@19825
|
1390 ;***************************************************************
|
pascal@19825
|
1391 global _ultoa:near
|
pascal@19825
|
1392 proc _ultoa near
|
pascal@19825
|
1393
|
pascal@19825
|
1394 pop ax
|
pascal@19825
|
1395 pop cx
|
pascal@19825
|
1396 pop dx
|
pascal@19825
|
1397 push dx
|
pascal@19825
|
1398 push cx
|
pascal@19825
|
1399 push ax ; DX:CX = n
|
pascal@19825
|
1400 push si
|
pascal@19825
|
1401 mov si,10
|
pascal@19825
|
1402 mov bx,offset ultoabuf+11
|
pascal@19825
|
1403 @@loop:
|
pascal@19825
|
1404 dec bx
|
pascal@19825
|
1405 xchg ax,dx
|
pascal@19825
|
1406 xor dx,dx
|
pascal@19825
|
1407 div si ; DX:AX = 0000:hi(n)
|
pascal@19825
|
1408 xchg ax,cx ; CX = hi(n)/10
|
pascal@19825
|
1409 div si ; DX:AX = hi(n)%10:lo(n)
|
pascal@19825
|
1410 xchg ax,cx ; CX = lo(n/10)
|
pascal@19825
|
1411 xchg ax,dx ; DX = hi(n)/10 = hi(n/10)
|
pascal@19825
|
1412 add al,'0'
|
pascal@19825
|
1413 mov [bx],al
|
pascal@19825
|
1414 mov ax,cx
|
pascal@19825
|
1415 or ax,dx
|
pascal@19825
|
1416 jnz @@loop
|
pascal@19825
|
1417 xchg ax,bx
|
pascal@19825
|
1418 pop si
|
pascal@19825
|
1419 ret
|
pascal@19825
|
1420
|
pascal@19825
|
1421 endp _ultoa
|
pascal@19825
|
1422
|
pascal@19825
|
1423
|
pascal@19825
|
1424 ;***************************************************************
|
pascal@19825
|
1425 ;unsigned long kver2ul(char *kernel_version);
|
pascal@19825
|
1426 ;***************************************************************
|
pascal@19825
|
1427 global _kver2ul:near
|
pascal@19825
|
1428 proc _kver2ul near
|
pascal@19825
|
1429
|
pascal@19825
|
1430 pop bx
|
pascal@19825
|
1431 pop ax
|
pascal@19825
|
1432 push ax
|
pascal@19825
|
1433 push bx
|
pascal@19825
|
1434 push bp si di
|
pascal@19825
|
1435 xchg ax,si
|
pascal@19825
|
1436 xor di,di
|
pascal@19825
|
1437 push di
|
pascal@19825
|
1438 push di
|
pascal@19825
|
1439 mov bp,sp
|
pascal@19825
|
1440 inc di
|
pascal@19825
|
1441 inc di
|
pascal@19825
|
1442 mov cl,4
|
pascal@19825
|
1443 @@number:
|
pascal@19825
|
1444 xor ax,ax
|
pascal@19825
|
1445 @@digit:
|
pascal@19825
|
1446 shl al,cl
|
pascal@19825
|
1447 shl ax,cl
|
pascal@19825
|
1448 lodsb
|
pascal@19825
|
1449 sub al,30h
|
pascal@19825
|
1450 cmp al,9
|
pascal@19825
|
1451 jbe @@digit
|
pascal@19825
|
1452 mov [bp+di],ah
|
pascal@19825
|
1453 dec di
|
pascal@19825
|
1454 jns @@number
|
pascal@19825
|
1455 pop ax
|
pascal@19825
|
1456 pop dx
|
pascal@19825
|
1457 pop di si bp
|
pascal@19825
|
1458 kver2ulret:
|
pascal@19825
|
1459 ret
|
pascal@19825
|
1460
|
pascal@19825
|
1461 endp _kver2ul
|
pascal@19825
|
1462
|
pascal@19825
|
1463
|
pascal@19825
|
1464 ;***************************************************************
|
pascal@19825
|
1465 ;void try_default_args();
|
pascal@19825
|
1466 ;***************************************************************
|
pascal@19825
|
1467 global _try_default_args:near
|
pascal@19825
|
1468 proc _try_default_args near
|
pascal@19825
|
1469
|
pascal@19825
|
1470 mov bx,offset tazboot_cmd
|
pascal@19825
|
1471 call open
|
pascal@19825
|
1472 jc kver2ulret
|
pascal@19825
|
1473 mov cx,4096
|
pascal@19825
|
1474 mov di,[_heap_top]
|
pascal@19825
|
1475 push cx
|
pascal@19825
|
1476 extrn read_cmdline:near
|
pascal@19825
|
1477 jmp near read_cmdline ; read_cmdline(ax,di,cx)
|
pascal@19825
|
1478
|
pascal@19825
|
1479 endp _try_default_args
|
pascal@19825
|
1480
|
pascal@19825
|
1481 endif
|
pascal@19825
|
1482
|
pascal@19515
|
1483 ends _TEXT
|
pascal@19515
|
1484
|
pascal@19515
|
1485 end
|
pascal@19515
|
1486
|
pascal@19515
|
1487 ;###### END OF FILE ############################################
|
pascal@19825
|
1488
|