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
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5 %crefref
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pascal@19515
|
6 %noincl
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pascal@19515
|
7 %nomacs
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pascal@19636
|
8 ifdef NO386
|
pascal@19636
|
9 p8086
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pascal@19636
|
10 else
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pascal@19515
|
11 p386
|
pascal@19636
|
12 endif
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pascal@19515
|
13
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pascal@19515
|
14 group DGROUP _TEXT,_DATA,_BSS
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pascal@19515
|
15 assume cs:DGROUP,ds:DGROUP
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pascal@19515
|
16
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pascal@19515
|
17 segment _DATA byte public use16 'DATA'
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pascal@19515
|
18
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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
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pascal@19515
|
30 ends _DATA
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pascal@19515
|
31
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pascal@19515
|
32 segment _BSS byte public use16 'BSS'
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pascal@19515
|
33
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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'
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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@19538
|
54 global _strcpy:near
|
pascal@19538
|
55 proc _strcpy near
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pascal@19538
|
56
|
pascal@19538
|
57 mov dl,0
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pascal@19580
|
58 db 0bbh ; mov bx,imm opcode
|
pascal@19580
|
59 global _strcat:near
|
pascal@19580
|
60 _strcat:
|
pascal@19580
|
61 mov dl,1
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pascal@19634
|
62 db 0bbh ; mov bx,imm opcode
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pascal@19634
|
63 global _strcatb:near
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pascal@19634
|
64 _strcatb:
|
pascal@19634
|
65 mov dl,3
|
pascal@19538
|
66 pop ax ;caller return address
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pascal@19538
|
67 pop cx ; a
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pascal@19538
|
68 pop bx ; b
|
pascal@19538
|
69 push bx
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pascal@19538
|
70 push cx
|
pascal@19538
|
71 push ax
|
pascal@19538
|
72 push si
|
pascal@19538
|
73 mov si,cx
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pascal@19538
|
74 shr dl,1
|
pascal@19538
|
75 jnc @@nocat
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pascal@19538
|
76 @@catlp:
|
pascal@19538
|
77 lodsb
|
pascal@19538
|
78 cmp al,0
|
pascal@19538
|
79 jne @@catlp
|
pascal@19538
|
80 dec si
|
pascal@19538
|
81 shr dl,1
|
pascal@19538
|
82 jnc @@nocat
|
pascal@19538
|
83 cmp cx,si
|
pascal@19538
|
84 jz @@nocat
|
pascal@19538
|
85 mov [word si],20h
|
pascal@19538
|
86 inc si
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pascal@19538
|
87 @@nocat:
|
pascal@19538
|
88 sub bx,si
|
pascal@19538
|
89 @@cpylp:
|
pascal@19538
|
90 mov al,[bx+si]
|
pascal@19538
|
91 mov [si],al
|
pascal@19538
|
92 inc si
|
pascal@19538
|
93 cmp al,0
|
pascal@19538
|
94 jne @@cpylp
|
pascal@19538
|
95 mov ax,cx
|
pascal@19538
|
96 pop si
|
pascal@19538
|
97 ret
|
pascal@19538
|
98
|
pascal@19538
|
99 endp _strcpy
|
pascal@19538
|
100
|
pascal@19538
|
101
|
pascal@19538
|
102 ;***************************************************************
|
pascal@19538
|
103 ;void* malloc(unsigned sz);
|
pascal@19538
|
104 ;***************************************************************
|
pascal@19538
|
105 global _malloc:near
|
pascal@19538
|
106 proc _malloc near
|
pascal@19538
|
107
|
pascal@19538
|
108 pop ax ;caller return address
|
pascal@19538
|
109 pop cx ; sz
|
pascal@19538
|
110 push cx
|
pascal@19538
|
111 push ax
|
pascal@19538
|
112 global malloc:near ; malloc(cx)
|
pascal@19571
|
113 malloc: ; keep CX, use AX,BX
|
pascal@19538
|
114 mov ax,[_heap_top]
|
pascal@19571
|
115 mov bx,-1400h ; MIN_STACK=_1k+PAGE_SIZE
|
pascal@19571
|
116 add bx,sp
|
pascal@19571
|
117 sub bx,ax ; can't overflow
|
pascal@19571
|
118 cmp bx,cx
|
pascal@19538
|
119 mov bx,offset msg_malloc
|
pascal@19538
|
120 jb puts
|
pascal@19538
|
121 add [_heap_top],cx ; _BEG has zero'd heap
|
pascal@19538
|
122 ;mov bx,ax
|
pascal@19538
|
123 @@zalloc:
|
pascal@19538
|
124 ;mov [byte bx],0
|
pascal@19538
|
125 ;inc bx ; ZF=0
|
pascal@19538
|
126 ;loop @@zalloc
|
pascal@19538
|
127 ret
|
pascal@19538
|
128
|
pascal@19538
|
129 endp _malloc
|
pascal@19538
|
130
|
pascal@19538
|
131
|
pascal@19538
|
132 ;***************************************************************
|
pascal@19515
|
133 ;void puts(const char* s):
|
pascal@19515
|
134 ;***************************************************************
|
pascal@19515
|
135 global _puts:near
|
pascal@19515
|
136 proc _puts near
|
pascal@19515
|
137
|
pascal@19515
|
138 pop ax ;caller return address
|
pascal@19515
|
139 pop bx ; s
|
pascal@19515
|
140 push bx
|
pascal@19515
|
141 push ax
|
pascal@19515
|
142 global puts:near ; puts(bx)
|
pascal@19515
|
143 puts:
|
pascal@19515
|
144 call putsz
|
pascal@19515
|
145 mov bx,offset msg_crlf
|
pascal@19515
|
146
|
pascal@19515
|
147 global putsz:near ; putsz(bx)
|
pascal@19515
|
148 putsz:
|
pascal@19515
|
149 push bx
|
pascal@19515
|
150 call strlen
|
pascal@19515
|
151 pop dx
|
pascal@19515
|
152 xchg ax,cx
|
pascal@19515
|
153 mov bx,1
|
pascal@19515
|
154 mov ah,40h
|
pascal@19538
|
155 int 21h
|
pascal@19538
|
156 xor ax,ax ; ZF=1 (for malloc failure)
|
pascal@19538
|
157 ret
|
pascal@19515
|
158
|
pascal@19515
|
159 endp _puts
|
pascal@19515
|
160
|
pascal@19515
|
161
|
pascal@19515
|
162 ;***************************************************************
|
pascal@19538
|
163 ;int fileattr(const char* name);
|
pascal@19538
|
164 ;***************************************************************
|
pascal@19538
|
165 global _fileattr:near
|
pascal@19538
|
166 proc _fileattr near
|
pascal@19538
|
167
|
pascal@19538
|
168 pop ax ;caller return address
|
pascal@19538
|
169 pop dx ; name
|
pascal@19538
|
170 push dx
|
pascal@19538
|
171 push ax
|
pascal@19538
|
172 mov ax,4300h
|
pascal@19538
|
173 int 21h
|
pascal@19538
|
174 xchg ax,cx
|
pascal@19538
|
175 jmp chkc
|
pascal@19538
|
176
|
pascal@19538
|
177 endp _fileattr
|
pascal@19538
|
178
|
pascal@19538
|
179
|
pascal@19538
|
180 ;***************************************************************
|
pascal@19546
|
181 ;int open(const char* name, int flags=O_RDONLY);
|
pascal@19515
|
182 ;***************************************************************
|
pascal@19515
|
183 global _open:near
|
pascal@19515
|
184 proc _open near
|
pascal@19515
|
185
|
pascal@19546
|
186 pop ax ;caller return address
|
pascal@19515
|
187 pop bx ; name
|
pascal@19546
|
188 push bx
|
pascal@19515
|
189 push ax
|
pascal@19546
|
190 global open:near ; open(bx)
|
pascal@19515
|
191 open:
|
pascal@19515
|
192 mov dx,bx
|
pascal@19546
|
193 mov ax,3d00h
|
pascal@19515
|
194 dos:
|
pascal@19515
|
195 int 21h
|
pascal@19538
|
196 chkc:
|
pascal@19515
|
197 jnc doret
|
pascal@19515
|
198 fail:
|
pascal@19515
|
199 sbb ax,ax ; ax=-1 CF
|
pascal@19515
|
200 cwd
|
pascal@19515
|
201 doret:
|
pascal@19515
|
202 ifndef NO386
|
pascal@19538
|
203 push dx ; see next_chunk:lseek
|
pascal@19538
|
204 push ax
|
pascal@19538
|
205 pop eax
|
pascal@19515
|
206 endif
|
pascal@19515
|
207 ret
|
pascal@19515
|
208
|
pascal@19515
|
209 endp _open
|
pascal@19515
|
210
|
pascal@19515
|
211
|
pascal@19515
|
212 ;***************************************************************
|
pascal@19515
|
213 ;int close(int fd);
|
pascal@19515
|
214 ;***************************************************************
|
pascal@19515
|
215 global _close:near
|
pascal@19515
|
216 proc _close near
|
pascal@19515
|
217
|
pascal@19515
|
218 pop ax ;caller return address
|
pascal@19515
|
219 pop bx ; fd
|
pascal@19515
|
220 push bx
|
pascal@19515
|
221 push ax
|
pascal@19515
|
222 global close:near ; close(bx)
|
pascal@19515
|
223 close:
|
pascal@19515
|
224 mov ah,3Eh
|
pascal@19515
|
225 or bx,bx
|
pascal@19515
|
226 jnz dos
|
pascal@19515
|
227 ret
|
pascal@19515
|
228
|
pascal@19515
|
229 endp _close
|
pascal@19515
|
230
|
pascal@19515
|
231
|
pascal@19515
|
232 ;***************************************************************
|
pascal@19515
|
233 ;int read(int fd, void* data, int sz);
|
pascal@19580
|
234 ;int write(int fd, const void* data, int sz);
|
pascal@19515
|
235 ;***************************************************************
|
pascal@19515
|
236 global _read:near
|
pascal@19515
|
237 proc _read near
|
pascal@19515
|
238
|
pascal@19580
|
239 stc
|
pascal@19634
|
240 db 0B0h ; mov al,im
|
pascal@19580
|
241 global _write:near
|
pascal@19580
|
242 clc
|
pascal@19580
|
243 pop ax ;caller return address
|
pascal@19580
|
244 pop bx ; fd
|
pascal@19580
|
245 pop dx ; data
|
pascal@19515
|
246 pop cx ; sz
|
pascal@19515
|
247 push cx
|
pascal@19515
|
248 push dx
|
pascal@19580
|
249 push bx
|
pascal@19580
|
250 push ax
|
pascal@19580
|
251 mov ah,40h
|
pascal@19580
|
252 sbb ah,0
|
pascal@19515
|
253 jcxz fail
|
pascal@19515
|
254 jmp dos
|
pascal@19515
|
255
|
pascal@19515
|
256 endp _read
|
pascal@19515
|
257
|
pascal@19825
|
258 ifdef EXTRA
|
pascal@19515
|
259 ;***************************************************************
|
pascal@19825
|
260 ;long lseekset(int fd, unsigned long sz);
|
pascal@19515
|
261 ;***************************************************************
|
pascal@19571
|
262 global _lseekset:near
|
pascal@19571
|
263 proc _lseekset near
|
pascal@19515
|
264
|
pascal@19515
|
265 pop ax ;caller return address
|
pascal@19515
|
266 pop bx ; fd
|
pascal@19571
|
267 pop dx ; sz lo
|
pascal@19571
|
268 pop cx ; sz hi
|
pascal@19571
|
269 push cx
|
pascal@19515
|
270 push dx
|
pascal@19825
|
271
|
pascal@19825
|
272 else
|
pascal@19825
|
273 ;***************************************************************
|
pascal@19825
|
274 ;long seekset(int fd, unsigned sz);
|
pascal@19825
|
275 ;***************************************************************
|
pascal@19825
|
276 global _seekset:near
|
pascal@19825
|
277 proc _seekset near
|
pascal@19825
|
278
|
pascal@19825
|
279 xor cx,cx
|
pascal@19825
|
280 pop ax ;caller return address
|
pascal@19825
|
281 pop bx ; fd
|
pascal@19825
|
282 pop dx ; sz
|
pascal@19825
|
283 push dx
|
pascal@19825
|
284 endif
|
pascal@19825
|
285
|
pascal@19515
|
286 push bx
|
pascal@19515
|
287 push ax
|
pascal@19571
|
288 global lseekset:near
|
pascal@19571
|
289 lseekset:
|
pascal@19571
|
290 clc
|
pascal@19634
|
291 db 0B0h ; mov al,im
|
pascal@19571
|
292 global rewind:near
|
pascal@19634
|
293 rewind: ; rewind(bx)
|
pascal@19634
|
294 stc
|
pascal@19571
|
295 mov ax,4200h
|
pascal@19571
|
296 jnc dos
|
pascal@19571
|
297 lseek0: ; lseek0(bx,ax=dir)
|
pascal@19571
|
298 cwd
|
pascal@19571
|
299 xor cx,cx
|
pascal@19515
|
300 jmp dos
|
pascal@19515
|
301
|
pascal@19825
|
302 ifdef EXTRA
|
pascal@19571
|
303 endp _lseekset
|
pascal@19825
|
304 else
|
pascal@19825
|
305 endp _seekset
|
pascal@19825
|
306 endif
|
pascal@19825
|
307
|
pascal@19825
|
308 ifdef EXTRA
|
pascal@19825
|
309 struc isostate ; struct isostate {
|
pascal@19825
|
310 fd dw ? ; 0 int fd;
|
pascal@19825
|
311 fileofs dd ? ; 2 unsigned long fileofs;
|
pascal@19825
|
312 filesize dd ? ; 6 unsigned long filesize;
|
pascal@19825
|
313 filemod dw ? ;10 unsigned short filemod;
|
pascal@19825
|
314 filename dw ? ;12 char *filename;
|
pascal@19825
|
315 dirofs dd ? ;14 unsigned long dirofs;
|
pascal@19825
|
316 dirsize dd ? ;16 unsigned long dirsize;
|
pascal@19825
|
317 curdirofs dd ? ;20 unsigned long curdirofs;
|
pascal@19825
|
318 curdirsize dd ? ;24 unsigned long curdirsize;
|
pascal@19825
|
319 curpos dd ? ;28 unsigned long curpos;
|
pascal@19825
|
320 ends ; } isostate;
|
pascal@19825
|
321 ;***************************************************************
|
pascal@19825
|
322 ;unsigned long isolseek(const unsigned long *offset);
|
pascal@19825
|
323 ;***************************************************************
|
pascal@19825
|
324 global _isolseek:near
|
pascal@19825
|
325 proc _isolseek near
|
pascal@19825
|
326
|
pascal@19825
|
327 pop ax
|
pascal@19825
|
328 pop bx
|
pascal@19825
|
329 push bx
|
pascal@19825
|
330 push ax
|
pascal@19825
|
331 mov dx,[bx]
|
pascal@19825
|
332 mov cx,[bx+2]
|
pascal@19825
|
333 extrn _isostate:isostate
|
pascal@19825
|
334 mov bx,[_isostate.fd]
|
pascal@19825
|
335 jmp lseekset ; (bx=fd, sz=cx:dx)
|
pascal@19825
|
336
|
pascal@19825
|
337 endp _isolseek
|
pascal@19825
|
338 endif
|
pascal@19515
|
339
|
pascal@19515
|
340
|
pascal@19515
|
341 ;***************************************************************
|
pascal@19515
|
342 ;int strlen(const char* s);
|
pascal@19515
|
343 ;***************************************************************
|
pascal@19515
|
344 global _strlen:near
|
pascal@19515
|
345 proc _strlen near
|
pascal@19515
|
346
|
pascal@19515
|
347 pop ax ;caller return address
|
pascal@19515
|
348 pop bx ; s
|
pascal@19515
|
349 push bx
|
pascal@19515
|
350 push ax
|
pascal@19515
|
351 global strlen:near ; strlen(bx)
|
pascal@19515
|
352 strlen:
|
pascal@19515
|
353 mov cx,bx
|
pascal@19515
|
354 jcxz @@end
|
pascal@19515
|
355 dec bx
|
pascal@19515
|
356 @@lenlp:
|
pascal@19515
|
357 inc bx
|
pascal@19515
|
358 cmp [byte bx],0
|
pascal@19515
|
359 jne @@lenlp
|
pascal@19515
|
360 sub bx,cx
|
pascal@19515
|
361 @@end:
|
pascal@19515
|
362 xchg ax,bx
|
pascal@19515
|
363 ret
|
pascal@19515
|
364
|
pascal@19515
|
365 endp _strlen
|
pascal@19515
|
366
|
pascal@19515
|
367
|
pascal@19515
|
368 ;***************************************************************
|
pascal@19515
|
369 ;int strhead(const char* a,const char* b);
|
pascal@19515
|
370 ;***************************************************************
|
pascal@19515
|
371 global _strhead:near
|
pascal@19515
|
372 proc _strhead near
|
pascal@19515
|
373
|
pascal@19515
|
374 pop cx ;caller return address
|
pascal@19634
|
375 pop bx ; a
|
pascal@19634
|
376 pop ax ; b
|
pascal@19634
|
377 push ax
|
pascal@19515
|
378 push bx
|
pascal@19515
|
379 push cx
|
pascal@19515
|
380 @@loop:
|
pascal@19634
|
381 xchg ax,bx
|
pascal@19515
|
382 mov cl,[bx] ; cl = *b++
|
pascal@19515
|
383 inc bx
|
pascal@19515
|
384 or cl,cl ; clear C
|
pascal@19515
|
385 jz fail ; return 0
|
pascal@19515
|
386 xchg ax,bx
|
pascal@19515
|
387 xor cl,[bx] ; cl -= *a++
|
pascal@19634
|
388 inc bx
|
pascal@19515
|
389 and cl,0dfh ; case insensitive
|
pascal@19634
|
390 jz @@loop
|
pascal@19634
|
391 ret ; return b (is not 0)
|
pascal@19515
|
392
|
pascal@19515
|
393 endp _strhead
|
pascal@19515
|
394
|
pascal@19515
|
395
|
pascal@19515
|
396 ;***************************************************************
|
pascal@19515
|
397 ;char* malloc_or_die(unsigned size);
|
pascal@19515
|
398 ;***************************************************************
|
pascal@19515
|
399 global _malloc_or_die:near
|
pascal@19515
|
400 proc _malloc_or_die near
|
pascal@19515
|
401
|
pascal@19515
|
402 pop ax ;caller return address
|
pascal@19515
|
403 pop cx ; size
|
pascal@19515
|
404 push cx
|
pascal@19515
|
405 push ax
|
pascal@19515
|
406 global malloc_or_die:near ; malloc_or_die(cx)
|
pascal@19515
|
407 malloc_or_die:
|
pascal@19515
|
408 call malloc
|
pascal@19538
|
409 jz _exit
|
pascal@19515
|
410 ret
|
pascal@19515
|
411
|
pascal@19515
|
412 endp _malloc_or_die
|
pascal@19515
|
413
|
pascal@19515
|
414
|
pascal@19515
|
415 ;***************************************************************
|
pascal@19515
|
416 ;int die(const char* msg);
|
pascal@19538
|
417 ;int exit();
|
pascal@19515
|
418 ;int abort();
|
pascal@19515
|
419 ;***************************************************************
|
pascal@19515
|
420 global _die:near
|
pascal@19515
|
421 proc _die near
|
pascal@19515
|
422
|
pascal@19515
|
423 pop ax ;caller return address
|
pascal@19515
|
424 pop bx ; s
|
pascal@19515
|
425 push bx
|
pascal@19515
|
426 push ax
|
pascal@19515
|
427 global die:near ; die(bx)
|
pascal@19515
|
428 die:
|
pascal@19515
|
429 call puts
|
pascal@19538
|
430 global _exit:near
|
pascal@19538
|
431 _exit:
|
pascal@19515
|
432 mov al,[_no_exit]
|
pascal@19515
|
433 cmp al,0
|
pascal@19515
|
434 jne @@hang
|
pascal@19515
|
435 extrn exit:near
|
pascal@19515
|
436 inc ax
|
pascal@19515
|
437 jmp near exit
|
pascal@19515
|
438 @@hang:
|
pascal@19515
|
439 mov bx, offset msg_hang
|
pascal@19515
|
440 call puts
|
pascal@19515
|
441 global _abort:near
|
pascal@19515
|
442 _abort:
|
pascal@19515
|
443 cli
|
pascal@19515
|
444 @@stop:
|
pascal@19515
|
445 hlt
|
pascal@19515
|
446 jmp @@stop
|
pascal@19515
|
447
|
pascal@19515
|
448 endp _die
|
pascal@19515
|
449
|
pascal@19546
|
450 struc image_himem ;struct image_himem {
|
pascal@19546
|
451 fd dw ? ; 0 int fd;
|
pascal@19546
|
452 fallback dd ? ; 2 u32 fallback;
|
pascal@19546
|
453 size dd ? ; 6 u32 size;
|
pascal@19546
|
454 remaining dd ? ;10 u32 remaining;
|
pascal@19546
|
455 buf dd ? ;14 u32 buf;
|
pascal@19546
|
456 bufv dw ? ;18 u32 *bufv;
|
pascal@19546
|
457 errmsg dw ? ;20 char *errmsg;
|
pascal@19546
|
458 chunk_size dd ? ;22 u32 chunk_size;
|
pascal@19546
|
459 next_chunk dw ? ;26 void (*next_chunk)(struct image_himem *);
|
pascal@19546
|
460 state dw ? ;28 u16 state;
|
pascal@19546
|
461 fd2close dw ? ;30 u16 fd2close;
|
pascal@19546
|
462 ends ;};
|
pascal@19515
|
463
|
pascal@19636
|
464 ;***************************************************************
|
pascal@19636
|
465 ;void next_chunk(struct image_himem *di);
|
pascal@19636
|
466 ;***************************************************************
|
pascal@19636
|
467 proc next_chunk near
|
pascal@19636
|
468
|
pascal@19636
|
469 push si
|
pascal@19636
|
470 mov bx,[(image_himem di).fd]
|
pascal@19636
|
471 call close
|
pascal@19636
|
472 ifndef NO386
|
pascal@19636
|
473 xor eax,eax
|
pascal@19636
|
474 else
|
pascal@19636
|
475 xor ax,ax
|
pascal@19636
|
476 endif
|
pascal@19636
|
477 cwd
|
pascal@19636
|
478 mov [(image_himem di).fd],ax
|
pascal@19636
|
479 mov bx,[(image_himem di).state]
|
pascal@19636
|
480 cmp al,[bx] ; ""
|
pascal@19636
|
481 jz @@end
|
pascal@19636
|
482 mov si,bx
|
pascal@19636
|
483 @@scan:
|
pascal@19636
|
484 lodsb
|
pascal@19636
|
485 mov cx,si
|
pascal@19636
|
486 cmp al,','
|
pascal@19636
|
487 jz @@eos
|
pascal@19636
|
488 cmp al,0
|
pascal@19636
|
489 jnz @@scan
|
pascal@19636
|
490 dec cx
|
pascal@19636
|
491 @@eos:
|
pascal@19636
|
492 mov [(image_himem di).state],cx
|
pascal@19636
|
493 dec si
|
pascal@19636
|
494 push [word si]
|
pascal@19636
|
495 mov [byte si],dl ; set temp eos
|
pascal@19636
|
496 call open
|
pascal@19636
|
497 pop [word si] ; restore string
|
pascal@19636
|
498 jc @@die
|
pascal@19636
|
499 mov [(image_himem di).fd],ax
|
pascal@19636
|
500 mov [(image_himem di).fd2close],ax
|
pascal@19636
|
501 xchg ax,bx
|
pascal@19636
|
502 mov ax,4202h ; SEEK_END
|
pascal@19636
|
503 call lseek0
|
pascal@19636
|
504 @@die:
|
pascal@19636
|
505 mov bx,[(image_himem di).errmsg]
|
pascal@19636
|
506 jc die
|
pascal@19636
|
507 mov bx,[(image_himem di).fd]
|
pascal@19636
|
508 ifndef NO386
|
pascal@19636
|
509 push eax
|
pascal@19636
|
510 call rewind
|
pascal@19636
|
511 pop eax
|
pascal@19636
|
512 @@end:
|
pascal@19636
|
513 mov [(image_himem di).chunk_size],eax
|
pascal@19636
|
514 else
|
pascal@19636
|
515 push ax
|
pascal@19636
|
516 push dx
|
pascal@19636
|
517 call rewind
|
pascal@19636
|
518 pop dx
|
pascal@19636
|
519 pop ax
|
pascal@19636
|
520 @@end:
|
pascal@19636
|
521 mov [word (image_himem di).chunk_size],ax
|
pascal@19636
|
522 mov [word ((image_himem di).chunk_size)+2],dx
|
pascal@19636
|
523 endif
|
pascal@19636
|
524 pop si
|
pascal@19636
|
525 ret
|
pascal@19636
|
526
|
pascal@19636
|
527 endp next_chunk
|
pascal@19636
|
528
|
pascal@19636
|
529
|
pascal@19571
|
530 ifdef LARGE_IMAGES
|
pascal@19571
|
531 struc data_himem ;struct data_himem {
|
pascal@19571
|
532 first dd ? ; 0 u32 first;
|
pascal@19571
|
533 cacheidx dw ? ; 4 int cacheidx;
|
pascal@19571
|
534 pageidx dw ? ; 6 int pageidx;
|
pascal@19571
|
535 cache dd 1024 dup(?) ; 8 int cache;
|
pascal@19571
|
536 page dd 1024 dup(?) ;4104 int page;
|
pascal@19571
|
537 ends ;}; // size=8200
|
pascal@19571
|
538 endif
|
pascal@19571
|
539
|
pascal@19515
|
540 ;***************************************************************
|
pascal@19538
|
541 ;u32* malloc_bufv_or_die(struct image_himem *m);
|
pascal@19538
|
542 ;***************************************************************
|
pascal@19538
|
543 global _malloc_bufv_or_die:near
|
pascal@19538
|
544 proc _malloc_bufv_or_die near
|
pascal@19538
|
545
|
pascal@19636
|
546 p386
|
pascal@19538
|
547 pop bx ;caller return address
|
pascal@19538
|
548 pop ax
|
pascal@19538
|
549 push ax
|
pascal@19538
|
550 push bx
|
pascal@19538
|
551 push si
|
pascal@19538
|
552 xchg ax,si
|
pascal@19571
|
553 ifdef LARGE_IMAGES
|
pascal@19571
|
554 mov cx,[word ((image_himem si).size) + 2]
|
pascal@19571
|
555 shr cx,4 ; pages index size = size >> 20
|
pascal@19571
|
556 add cx,8+4096+8
|
pascal@19571
|
557 call malloc_or_die
|
pascal@19571
|
558 mov ecx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19571
|
559 add ecx,[(image_himem si).size]
|
pascal@19571
|
560 shr ecx,12
|
pascal@19571
|
561 mov [curdata],ax
|
pascal@19571
|
562 else
|
pascal@19546
|
563 mov ecx,[(image_himem si).size]
|
pascal@19538
|
564 dec ecx
|
pascal@19538
|
565 shr ecx,12
|
pascal@19538
|
566 inc cx ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19538
|
567 push cx
|
pascal@19538
|
568 inc cx ; cnt+1
|
pascal@19538
|
569 shl cx,2 ; bufv => vcpi => vm86
|
pascal@19538
|
570 ; our malloc zeroes allocated mem: bufv[cnt]=0;
|
pascal@19538
|
571 ; Allocate pages, storing addrs in addrbuf
|
pascal@19538
|
572 call malloc_or_die
|
pascal@19571
|
573 pop cx
|
pascal@19571
|
574 push ax
|
pascal@19571
|
575 endif
|
pascal@19546
|
576 mov [(image_himem si).bufv],ax
|
pascal@19571
|
577 xchg ax,si
|
pascal@19538
|
578 @@vcpi_alloc:
|
pascal@19538
|
579 xor edx,edx
|
pascal@19538
|
580 mov ax,0DE04h
|
pascal@19538
|
581 int 67h
|
pascal@19538
|
582 or ah,ah
|
pascal@19538
|
583 mov bx,offset vcpi_alloc_err
|
pascal@19571
|
584 jnz die
|
pascal@19571
|
585 ; for (i = cnt-1; i >= 0; i--)
|
pascal@19571
|
586 ifdef LARGE_IMAGES
|
pascal@19571
|
587 mov eax,ecx
|
pascal@19571
|
588 dec eax
|
pascal@19571
|
589 else
|
pascal@19571
|
590 mov ax,cx
|
pascal@19571
|
591 dec ax
|
pascal@19571
|
592 cwde
|
pascal@19571
|
593 endif
|
pascal@19571
|
594 shl eax,12 ; i*_4k
|
pascal@19571
|
595 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
|
pascal@19571
|
596 extrn _pm
|
pascal@19571
|
597 mov bx,offset _pm+2
|
pascal@19571
|
598 push eax
|
pascal@19571
|
599 add eax,[bx-2+2]
|
pascal@19571
|
600 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
|
pascal@19571
|
601 pop eax ; i*_4k
|
pascal@19571
|
602 jbe @@pmok
|
pascal@19571
|
603 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
|
pascal@19571
|
604 jae @@vcpi_alloc
|
pascal@19571
|
605 @@pmok:
|
pascal@19571
|
606 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
|
pascal@19571
|
607 extrn _initrd
|
pascal@19571
|
608 mov bx,offset _initrd+2
|
pascal@19571
|
609 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
610 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
|
pascal@19571
|
611 ja @@initrdok
|
pascal@19571
|
612 mov eax,[bx-2+6] ; initrd.size
|
pascal@19571
|
613 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
614 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
|
pascal@19571
|
615 @@jnc_vcpi_alloc:
|
pascal@19571
|
616 ja @@vcpi_alloc
|
pascal@19571
|
617 @@initrdok:
|
pascal@19571
|
618 ifdef LARGE_IMAGES
|
pascal@19571
|
619 cmp [(data_himem si).first],0
|
pascal@19571
|
620 jne @@notfirst
|
pascal@19571
|
621 mov [(data_himem si).first],edx
|
pascal@19571
|
622 @@notfirst:
|
pascal@19571
|
623 mov bx,[(data_himem si).cacheidx]
|
pascal@19571
|
624 cmp bh,4
|
pascal@19571
|
625 jae @@nextpage
|
pascal@19571
|
626 shl bx,2
|
pascal@19571
|
627 inc [(data_himem si).cacheidx]
|
pascal@19571
|
628 mov [(data_himem bx+si).cache],edx
|
pascal@19571
|
629 loopd @@vcpi_alloc
|
pascal@19571
|
630 mov [(data_himem bx+si).cache],ecx ; last is 0
|
pascal@19571
|
631 @@nextpage:
|
pascal@19571
|
632 and [(data_himem si).cacheidx],0
|
pascal@19571
|
633 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
634 mov [(data_himem bx+si).page],edx
|
pascal@19571
|
635 add [(data_himem si).pageidx],4
|
pascal@19571
|
636 push cx
|
pascal@19571
|
637 lea cx,[(data_himem si).cache]
|
pascal@19571
|
638 ifdef NO386
|
pascal@19571
|
639 push edx
|
pascal@19571
|
640 pop dx
|
pascal@19571
|
641 pop ax
|
pascal@19571
|
642 endif
|
pascal@19571
|
643 call storepage ; storepage(edx,cx)
|
pascal@19571
|
644 pop cx
|
pascal@19571
|
645 or ecx,ecx ; clear C
|
pascal@19571
|
646 jnz @@jnc_vcpi_alloc
|
pascal@19571
|
647 mov [dword (data_himem si).cacheidx],ecx
|
pascal@19571
|
648 xchg ax,si
|
pascal@19571
|
649 else
|
pascal@19571
|
650 mov [si],edx
|
pascal@19571
|
651 lodsd ; si=+4
|
pascal@19538
|
652 loop @@vcpi_alloc
|
pascal@19538
|
653 pop ax
|
pascal@19571
|
654 endif
|
pascal@19538
|
655 pop si
|
pascal@19538
|
656 ret
|
pascal@19636
|
657 ifdef NO386
|
pascal@19636
|
658 p8086
|
pascal@19636
|
659 endif
|
pascal@19538
|
660
|
pascal@19538
|
661 endp _malloc_bufv_or_die
|
pascal@19538
|
662
|
pascal@19538
|
663
|
pascal@19538
|
664 ;***************************************************************
|
pascal@19571
|
665 ; void memcpy_image(struct image_himem *m);
|
pascal@19515
|
666 ;***************************************************************
|
pascal@19571
|
667 global _memcpy_image:near
|
pascal@19571
|
668 proc _memcpy_image near
|
pascal@19515
|
669
|
pascal@19571
|
670 pop ax ;caller return address
|
pascal@19515
|
671 pop bx
|
pascal@19571
|
672 push bx
|
pascal@19571
|
673 push ax
|
pascal@19571
|
674 ifndef NO386
|
pascal@19571
|
675 mov edx,[(image_himem bx).fallback]
|
pascal@19571
|
676 mov eax,[(image_himem bx).buf]
|
pascal@19571
|
677 cmp eax,edx ; if (m->fallback != m->buf)
|
pascal@19571
|
678 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
679 ifdef LARGE_IMAGES
|
pascal@19571
|
680 mov ecx,[(image_himem bx).size]
|
pascal@19571
|
681 memcpy_imagez:
|
pascal@19571
|
682 push ecx
|
pascal@19571
|
683 else
|
pascal@19571
|
684 push [(image_himem bx).size]
|
pascal@19571
|
685 endif
|
pascal@19571
|
686 push eax
|
pascal@19571
|
687 push 0
|
pascal@19571
|
688 call_memcpy32:
|
pascal@19571
|
689 push edx
|
pascal@19571
|
690 else
|
pascal@19571
|
691 mov ax,[word ((image_himem bx).fallback)]
|
pascal@19571
|
692 mov dx,[word ((image_himem bx).fallback)+2]
|
pascal@19571
|
693 mov cx,[word ((image_himem bx).buf)]
|
pascal@19571
|
694 cmp ax,cx ; if (m->fallback != m->buf)
|
pascal@19571
|
695 jnz @@do
|
pascal@19571
|
696 cmp dx,[word ((image_himem bx).buf)+2]
|
pascal@19571
|
697 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
698 @@do:
|
pascal@19571
|
699 push [word ((image_himem bx).size)+2]
|
pascal@19571
|
700 push [word ((image_himem bx).size)]
|
pascal@19571
|
701 push [word ((image_himem bx).buf)+2]
|
pascal@19571
|
702 push cx
|
pascal@19571
|
703 xor cx,cx
|
pascal@19571
|
704 push cx
|
pascal@19571
|
705 call_memcpy32:
|
pascal@19571
|
706 push dx
|
pascal@19571
|
707 push ax
|
pascal@19571
|
708 ifdef LARGE_IMAGES
|
pascal@19571
|
709 jmp @@memcpy
|
pascal@19571
|
710 memcpy_imagez:
|
pascal@19636
|
711 p386
|
pascal@19571
|
712 push ecx
|
pascal@19571
|
713 push eax
|
pascal@19571
|
714 push 0
|
pascal@19571
|
715 push edx
|
pascal@19636
|
716 ifdef NO386
|
pascal@19636
|
717 p8086
|
pascal@19636
|
718 endif
|
pascal@19571
|
719 endif
|
pascal@19571
|
720 endif
|
pascal@19571
|
721 @@memcpy:
|
pascal@19571
|
722 extrn _memcpy32:near
|
pascal@19571
|
723 call near _memcpy32
|
pascal@19571
|
724 add sp,14
|
pascal@19571
|
725 @@skip:
|
pascal@19571
|
726 ret
|
pascal@19571
|
727
|
pascal@19571
|
728 endp _memcpy_image
|
pascal@19571
|
729
|
pascal@19571
|
730 ;***************************************************************
|
pascal@19571
|
731 ;void storepage(u32 *dst, u16 src);
|
pascal@19571
|
732 ;***************************************************************
|
pascal@19571
|
733 global _storepage:near
|
pascal@19571
|
734 proc _storepage near
|
pascal@19571
|
735
|
pascal@19571
|
736 pop ax ;caller return address
|
pascal@19571
|
737 pop bx
|
pascal@19571
|
738 pop cx
|
pascal@19571
|
739 push cx
|
pascal@19571
|
740 push bx
|
pascal@19571
|
741 push ax
|
pascal@19571
|
742 ifndef NO386
|
pascal@19571
|
743 mov edx,[bx]
|
pascal@19571
|
744 else
|
pascal@19571
|
745 mov ax,[bx]
|
pascal@19571
|
746 mov dx,[bx+2]
|
pascal@19571
|
747 endif
|
pascal@19571
|
748 storepage:
|
pascal@19571
|
749 ifndef NO386
|
pascal@19571
|
750 push 0
|
pascal@19571
|
751 push 4096
|
pascal@19571
|
752 push 0
|
pascal@19571
|
753 else
|
pascal@19571
|
754 xor bx,bx
|
pascal@19571
|
755 push bx
|
pascal@19571
|
756 mov bh,4096/256
|
pascal@19571
|
757 push bx
|
pascal@19571
|
758 xor bx,bx
|
pascal@19571
|
759 push bx
|
pascal@19571
|
760 endif
|
pascal@19571
|
761 push cx
|
pascal@19571
|
762 push ds
|
pascal@19571
|
763 jmp call_memcpy32
|
pascal@19571
|
764
|
pascal@19571
|
765 endp _storepage
|
pascal@19571
|
766
|
pascal@19571
|
767
|
pascal@19571
|
768 ifdef LARGE_IMAGES
|
pascal@19636
|
769 p386
|
pascal@19571
|
770 ;***************************************************************
|
pascal@19571
|
771 ;void reset_bufv(u32 *p);
|
pascal@19571
|
772 ;***************************************************************
|
pascal@19571
|
773 global _reset_bufv:near
|
pascal@19571
|
774 proc _reset_bufv near
|
pascal@19571
|
775
|
pascal@19634
|
776 pop ax ;caller return address
|
pascal@19634
|
777 pop bx
|
pascal@19634
|
778 push bx
|
pascal@19515
|
779 push ax
|
pascal@19634
|
780 mov [curdata],bx
|
pascal@19571
|
781 and [dword (data_himem bx).cacheidx],0
|
pascal@19571
|
782 ret
|
pascal@19571
|
783
|
pascal@19571
|
784 endp _reset_bufv
|
pascal@19571
|
785
|
pascal@19571
|
786 ;***************************************************************
|
pascal@19571
|
787 ;u32* prev_bufv();
|
pascal@19571
|
788 ;u32* prev_bufv();
|
pascal@19571
|
789 ;***************************************************************
|
pascal@19571
|
790 global _prev_bufv:near
|
pascal@19571
|
791 global _next_bufv:near
|
pascal@19571
|
792 proc _prev_bufv near
|
pascal@19571
|
793
|
pascal@19571
|
794 stc
|
pascal@19571
|
795 db 73h ; jnc
|
pascal@19571
|
796 _next_bufv:
|
pascal@19571
|
797 clc
|
pascal@19571
|
798 sbb ax,ax
|
pascal@19571
|
799 stc
|
pascal@19571
|
800 rcl ax,1 ; -1/+1
|
pascal@19571
|
801 xor ecx,ecx
|
pascal@19571
|
802 push si
|
pascal@19571
|
803 mov si,[curdata]
|
pascal@19571
|
804 add ax,[(data_himem si).cacheidx]
|
pascal@19571
|
805 test ax,0fc00h
|
pascal@19571
|
806 jz @@gotpage
|
pascal@19571
|
807 push ax ; FFFF / 0400
|
pascal@19571
|
808 sar ax,8 ; FFFC / 0004
|
pascal@19571
|
809 and al,0fch
|
pascal@19571
|
810 add [(data_himem si).pageidx],ax
|
pascal@19571
|
811 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
812 lea bx,[(data_himem bx+si).page]
|
pascal@19571
|
813 mov edx,ds
|
pascal@19571
|
814 shl edx,4
|
pascal@19571
|
815 lea cx,[(data_himem si).cache]
|
pascal@19571
|
816 add edx,ecx
|
pascal@19571
|
817 mov eax,[bx]
|
pascal@19571
|
818 or eax,eax
|
pascal@19571
|
819 jnz @@pageok
|
pascal@19571
|
820 pop ax
|
pascal@19571
|
821 xchg ax,bx
|
pascal@19571
|
822 pop si
|
pascal@19571
|
823 ret
|
pascal@19571
|
824 @@pageok:
|
pascal@19571
|
825 mov cx,4096
|
pascal@19571
|
826 call memcpy_imagez ; get page
|
pascal@19571
|
827 pop ax ; FFFF / 0400
|
pascal@19571
|
828 cbw
|
pascal@19571
|
829 shr ax,6 ; 03FF / 0000
|
pascal@19571
|
830 @@gotpage:
|
pascal@19571
|
831 mov [(data_himem si).cacheidx],ax
|
pascal@19571
|
832 shl ax,2
|
pascal@19571
|
833 xchg ax,bx
|
pascal@19571
|
834 lea ax,[(data_himem bx+si).cache]
|
pascal@19571
|
835 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
|
pascal@19571
|
836 jnz @@notfirst2
|
pascal@19571
|
837 xchg ax,si ; &first
|
pascal@19571
|
838 @@notfirst2:
|
pascal@19571
|
839 pop si
|
pascal@19571
|
840 ret
|
pascal@19636
|
841 ifdef NO386
|
pascal@19636
|
842 p8086
|
pascal@19636
|
843 endif
|
pascal@19571
|
844
|
pascal@19571
|
845 endp _prev_bufv
|
pascal@19571
|
846 endif
|
pascal@19571
|
847
|
pascal@19571
|
848
|
pascal@19571
|
849 ;***************************************************************
|
pascal@19515
|
850 ;void open_image(const char *name, struct image_himem *m);
|
pascal@19515
|
851 ;***************************************************************
|
pascal@19515
|
852 global _open_image:near
|
pascal@19515
|
853 proc _open_image near
|
pascal@19515
|
854
|
pascal@19515
|
855 arg fname :word, \
|
pascal@19515
|
856 m :word = PARAM_SIZE
|
pascal@19515
|
857
|
pascal@19515
|
858 push bp
|
pascal@19515
|
859 mov bp,sp
|
pascal@19515
|
860 push si di
|
pascal@19515
|
861 ifndef NO386
|
pascal@19515
|
862 xor eax,eax ; 1st loop flag + eos
|
pascal@19515
|
863 else
|
pascal@19515
|
864 xor ax,ax ; 1st loop flag + eos
|
pascal@19515
|
865 endif
|
pascal@19515
|
866 mov di,[m]
|
pascal@19546
|
867 cmp [(image_himem di).fd],ax
|
pascal@19515
|
868 jnz @@alreadydone
|
pascal@19515
|
869 ifndef NO386
|
pascal@19546
|
870 mov [(image_himem di).size],eax ; m->size = 0L
|
pascal@19515
|
871 else
|
pascal@19546
|
872 mov [word (image_himem di).size],ax ; m->size = 0L
|
pascal@19546
|
873 mov [word ((image_himem di).size)+2],ax
|
pascal@19515
|
874 endif
|
pascal@19571
|
875 mov [(image_himem di).next_chunk],offset next_chunk
|
pascal@19515
|
876 mov si,[fname]
|
pascal@19546
|
877 mov [(image_himem di).state],si
|
pascal@19515
|
878 @@next:
|
pascal@19515
|
879 push di
|
pascal@19546
|
880 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
881 pop di
|
pascal@19515
|
882 ifndef NO386
|
pascal@19515
|
883 add eax,3
|
pascal@19515
|
884 and al,0FCh
|
pascal@19546
|
885 add [(image_himem di).size],eax ; m->size += m->chunk_size
|
pascal@19515
|
886 or eax,eax
|
pascal@19515
|
887 jnz @@next
|
pascal@19515
|
888 else
|
pascal@19515
|
889 mov cx,ax
|
pascal@19515
|
890 or cx,dx
|
pascal@19515
|
891 add ax,3
|
pascal@19515
|
892 adc dx,0
|
pascal@19515
|
893 and al,0FCh
|
pascal@19546
|
894 add [word (image_himem di).size],ax ; m->size += m->chunk_size
|
pascal@19546
|
895 adc [word ((image_himem di).size)+2],dx
|
pascal@19538
|
896 inc cx ; jcxnz
|
pascal@19515
|
897 loop @@next
|
pascal@19515
|
898 endif
|
pascal@19546
|
899 mov [(image_himem di).state],si
|
pascal@19515
|
900 push di
|
pascal@19546
|
901 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
902 pop di
|
pascal@19515
|
903 @@alreadydone:
|
pascal@19515
|
904 push ax
|
pascal@19515
|
905 image_done:
|
pascal@19515
|
906 pop ax
|
pascal@19515
|
907 pop di si bp
|
pascal@19515
|
908 ret
|
pascal@19515
|
909
|
pascal@19515
|
910 endp _open_image
|
pascal@19515
|
911
|
pascal@19515
|
912
|
pascal@19515
|
913 ;***************************************************************
|
pascal@19515
|
914 ;int read_image(struct image_himem *m, void* data, int sz);
|
pascal@19515
|
915 ;***************************************************************
|
pascal@19515
|
916 global _read_image:near
|
pascal@19515
|
917 proc _read_image near
|
pascal@19515
|
918
|
pascal@19515
|
919 arg m :word, \
|
pascal@19515
|
920 data :word, \
|
pascal@19515
|
921 sz :word = PARAM_SIZE
|
pascal@19515
|
922
|
pascal@19515
|
923 push bp
|
pascal@19515
|
924 mov bp,sp
|
pascal@19515
|
925 push si di
|
pascal@19515
|
926 ifndef NO386
|
pascal@19515
|
927 push 0 ; return value
|
pascal@19515
|
928 else
|
pascal@19515
|
929 xor ax,ax
|
pascal@19515
|
930 push ax
|
pascal@19515
|
931 endif
|
pascal@19515
|
932 mov di,[m]
|
pascal@19515
|
933 @@loop:
|
pascal@19538
|
934 ifndef NO386
|
pascal@19538
|
935 xor ecx,ecx
|
pascal@19538
|
936 mov cx,[word sz]
|
pascal@19538
|
937 @@chksz:
|
pascal@19546
|
938 mov eax,[(image_himem di).chunk_size]
|
pascal@19538
|
939 cmp ecx,eax
|
pascal@19538
|
940 jb @@szok
|
pascal@19538
|
941 xchg eax,ecx
|
pascal@19538
|
942 else
|
pascal@19538
|
943 mov cx,[word sz]
|
pascal@19538
|
944 @@chksz:
|
pascal@19546
|
945 mov ax,[word (image_himem di).chunk_size]
|
pascal@19538
|
946 cmp cx,ax
|
pascal@19515
|
947 jb @@szok
|
pascal@19546
|
948 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
|
pascal@19515
|
949 jne @@szok
|
pascal@19515
|
950 xchg ax,cx
|
pascal@19538
|
951 endif
|
pascal@19515
|
952 @@szok:
|
pascal@19538
|
953 jcxz image_done
|
pascal@19538
|
954 push cx
|
pascal@19515
|
955 push [word data]
|
pascal@19515
|
956 push [word di]
|
pascal@19515
|
957 call _read
|
pascal@19538
|
958 pop dx
|
pascal@19515
|
959 pop bx
|
pascal@19538
|
960 pop dx
|
pascal@19538
|
961 jc image_done
|
pascal@19515
|
962 add bx,ax
|
pascal@19515
|
963 xor cx,cx
|
pascal@19538
|
964 ifndef NO386
|
pascal@19538
|
965 cwde ; ax < 8000h
|
pascal@19546
|
966 sub [(image_himem di).chunk_size],eax
|
pascal@19538
|
967 else
|
pascal@19538
|
968 cwd ; ax < 8000h
|
pascal@19546
|
969 sub [word (image_himem di).chunk_size],ax
|
pascal@19546
|
970 sbb [word ((image_himem di).chunk_size)+2],dx
|
pascal@19538
|
971 jnz @@fill
|
pascal@19546
|
972 cmp [word (image_himem di).chunk_size],dx
|
pascal@19538
|
973 endif
|
pascal@19538
|
974 jnz @@fill
|
pascal@19538
|
975 dec cx
|
pascal@19515
|
976 @@fill:
|
pascal@19515
|
977 test al,3
|
pascal@19515
|
978 je @@filled
|
pascal@19538
|
979 mov [bx],dl
|
pascal@19515
|
980 inc bx
|
pascal@19515
|
981 inc ax
|
pascal@19515
|
982 jmp @@fill
|
pascal@19515
|
983 @@filled:
|
pascal@19538
|
984 ifndef NO386
|
pascal@19546
|
985 sub [(image_himem di).remaining],eax
|
pascal@19538
|
986 else
|
pascal@19546
|
987 sub [word (image_himem di).remaining],ax
|
pascal@19546
|
988 sbb [word ((image_himem di).remaining)+2],dx
|
pascal@19538
|
989 endif
|
pascal@19515
|
990 add [bp-4-2],ax
|
pascal@19515
|
991 add [word data],ax
|
pascal@19515
|
992 sub [word sz],ax
|
pascal@19538
|
993 pushf
|
pascal@19546
|
994 and cx,[(image_himem di).next_chunk]
|
pascal@19538
|
995 jz @@same_chunk
|
pascal@19515
|
996 push di
|
pascal@19515
|
997 call cx ; m->next_chunk()
|
pascal@19515
|
998 pop di
|
pascal@19538
|
999 @@same_chunk:
|
pascal@19538
|
1000 popf
|
pascal@19538
|
1001 jnz @@loop
|
pascal@19538
|
1002 jmp image_done
|
pascal@19515
|
1003
|
pascal@19515
|
1004 endp _read_image
|
pascal@19515
|
1005
|
pascal@19515
|
1006
|
pascal@19515
|
1007 ;***************************************************************
|
pascal@19515
|
1008 ;unsigned long strtol(const char *s);
|
pascal@19515
|
1009 ;***************************************************************
|
pascal@19515
|
1010 global _strtol:near
|
pascal@19515
|
1011 proc _strtol near
|
pascal@19515
|
1012
|
pascal@19515
|
1013 ifndef NO386
|
pascal@19515
|
1014 pop ax ;caller return address
|
pascal@19515
|
1015 pop cx ; s
|
pascal@19515
|
1016 push cx
|
pascal@19515
|
1017 push ax
|
pascal@19515
|
1018 xor ebx,ebx
|
pascal@19515
|
1019 push si
|
pascal@19634
|
1020 jcxz @@end
|
pascal@19515
|
1021 mov si,cx
|
pascal@19515
|
1022 xor ecx,ecx
|
pascal@19515
|
1023 xor eax,eax
|
pascal@19515
|
1024 lodsb
|
pascal@19634
|
1025 mov dx,ax
|
pascal@19634
|
1026 or al,20h
|
pascal@19634
|
1027 cmp al,'n' ; vga=normal
|
pascal@19538
|
1028 je @@vga
|
pascal@19538
|
1029 dec cx
|
pascal@19634
|
1030 cmp al,'e' ; vga=extended
|
pascal@19538
|
1031 je @@vga
|
pascal@19538
|
1032 dec cx
|
pascal@19634
|
1033 cmp al,'a' ; vga=ask
|
pascal@19538
|
1034 jne @@notvga
|
pascal@19538
|
1035 @@vga:
|
pascal@19538
|
1036 dec cx
|
pascal@19538
|
1037 xchg ax,cx
|
pascal@19538
|
1038 cwd
|
pascal@19634
|
1039 jmp @@popsiret
|
pascal@19538
|
1040 @@notvga:
|
pascal@19538
|
1041 mov cx,10 ; radix
|
pascal@19634
|
1042 xchg ax,dx
|
pascal@19515
|
1043 cmp al,'+'
|
pascal@19515
|
1044 je @@radixskip
|
pascal@19515
|
1045 cmp al,'-'
|
pascal@19515
|
1046 clc
|
pascal@19515
|
1047 jne @@radixkeep
|
pascal@19515
|
1048 stc
|
pascal@19515
|
1049 @@radixskip:
|
pascal@19515
|
1050 lodsb
|
pascal@19515
|
1051 @@radixkeep:
|
pascal@19515
|
1052 pushf
|
pascal@19515
|
1053 cmp al,'0'
|
pascal@19515
|
1054 jne @@radixok
|
pascal@19515
|
1055 mov cl,8
|
pascal@19515
|
1056 lodsb
|
pascal@19634
|
1057 or al,20h
|
pascal@19634
|
1058 cmp al,'x'
|
pascal@19515
|
1059 jne @@radixok
|
pascal@19515
|
1060 mov cl,16
|
pascal@19515
|
1061 @@strtollp:
|
pascal@19515
|
1062 lodsb
|
pascal@19515
|
1063 @@radixok:
|
pascal@19634
|
1064 or al,20h
|
pascal@19515
|
1065 sub al,'0'
|
pascal@19515
|
1066 jb @@endstrtol
|
pascal@19515
|
1067 cmp al,9
|
pascal@19515
|
1068 jbe @@digitok
|
pascal@19515
|
1069 cmp al,'a'-'0'
|
pascal@19515
|
1070 jb @@endstrtol
|
pascal@19515
|
1071 sub al,'a'-'0'-10
|
pascal@19515
|
1072 @@digitok:
|
pascal@19515
|
1073 cmp al,cl
|
pascal@19515
|
1074 jae @@endstrtol
|
pascal@19515
|
1075 xchg eax,ebx
|
pascal@19515
|
1076 mul ecx
|
pascal@19515
|
1077 add eax,ebx
|
pascal@19515
|
1078 xchg eax,ebx
|
pascal@19515
|
1079 jmp @@strtollp
|
pascal@19515
|
1080 @@endstrtol:
|
pascal@19515
|
1081 mov cl,10
|
pascal@19515
|
1082 cmp al,'k'-'a'+10
|
pascal@19515
|
1083 je @@shift
|
pascal@19515
|
1084 mov cl,20
|
pascal@19515
|
1085 cmp al,'m'-'a'+10
|
pascal@19515
|
1086 je @@shift
|
pascal@19515
|
1087 mov cl,30
|
pascal@19515
|
1088 cmp al,'g'-'a'+10
|
pascal@19515
|
1089 jne @@noshift
|
pascal@19515
|
1090 @@shift:
|
pascal@19515
|
1091 shl ebx,cl
|
pascal@19515
|
1092 @@noshift:
|
pascal@19515
|
1093 popf
|
pascal@19515
|
1094 jnc @@end
|
pascal@19515
|
1095 neg ebx
|
pascal@19515
|
1096 @@end:
|
pascal@19515
|
1097 push ebx
|
pascal@19515
|
1098 pop ax
|
pascal@19515
|
1099 pop dx
|
pascal@19634
|
1100 @@popsiret:
|
pascal@19515
|
1101 pop si
|
pascal@19515
|
1102 else
|
pascal@19515
|
1103 pop ax ;caller return address
|
pascal@19515
|
1104 pop cx ; s
|
pascal@19515
|
1105 push cx
|
pascal@19515
|
1106 push ax
|
pascal@19515
|
1107 push si
|
pascal@19515
|
1108 push di
|
pascal@19515
|
1109 xor ax,ax
|
pascal@19515
|
1110 cwd
|
pascal@19634
|
1111 jcxz @@goend
|
pascal@19515
|
1112 xchg ax,di
|
pascal@19515
|
1113 mov si,cx
|
pascal@19538
|
1114 lodsb
|
pascal@19634
|
1115 mov bx,ax
|
pascal@19634
|
1116 or al,20h
|
pascal@19538
|
1117 mov cx,-1
|
pascal@19634
|
1118 cmp al,'n' ; vga=normal
|
pascal@19538
|
1119 je @@vga
|
pascal@19538
|
1120 dec cx
|
pascal@19634
|
1121 cmp al,'e' ; vga=extended
|
pascal@19538
|
1122 je @@vga
|
pascal@19538
|
1123 dec cx
|
pascal@19634
|
1124 cmp al,'a' ; vga=ask
|
pascal@19538
|
1125 jne @@notvga
|
pascal@19538
|
1126 @@vga:
|
pascal@19538
|
1127 xchg ax,cx
|
pascal@19538
|
1128 @@goend:
|
pascal@19634
|
1129 jmp @@popdisiret
|
pascal@19538
|
1130 @@notvga:
|
pascal@19515
|
1131 mov cx,10 ; radix
|
pascal@19634
|
1132 xchg ax,bx
|
pascal@19515
|
1133 cmp al,'+'
|
pascal@19515
|
1134 je @@radixskip
|
pascal@19515
|
1135 cmp al,'-'
|
pascal@19515
|
1136 clc
|
pascal@19515
|
1137 jne @@radixkeep
|
pascal@19515
|
1138 stc
|
pascal@19515
|
1139 @@radixskip:
|
pascal@19515
|
1140 lodsb
|
pascal@19515
|
1141 @@radixkeep:
|
pascal@19515
|
1142 pushf
|
pascal@19515
|
1143 cmp al,'0'
|
pascal@19515
|
1144 jne @@radixok
|
pascal@19515
|
1145 mov cl,8
|
pascal@19515
|
1146 lodsb
|
pascal@19634
|
1147 mov al,20h
|
pascal@19634
|
1148 cmp al,'x'
|
pascal@19515
|
1149 jne @@radixok
|
pascal@19515
|
1150 mov cl,16
|
pascal@19515
|
1151 @@strtollp:
|
pascal@19515
|
1152 lodsb
|
pascal@19515
|
1153 @@radixok:
|
pascal@19634
|
1154 or al,20h
|
pascal@19515
|
1155 sub al,'0'
|
pascal@19515
|
1156 jb @@endstrtol
|
pascal@19515
|
1157 cmp al,9
|
pascal@19515
|
1158 jbe @@digitok
|
pascal@19515
|
1159 cmp al,'a'-'0'
|
pascal@19515
|
1160 jb @@endstrtol
|
pascal@19515
|
1161 sub al,'a'-'0'-10
|
pascal@19515
|
1162 @@digitok:
|
pascal@19515
|
1163 cmp al,cl
|
pascal@19515
|
1164 jae @@endstrtol
|
pascal@19515
|
1165
|
pascal@19515
|
1166 push ax
|
pascal@19515
|
1167 push si
|
pascal@19515
|
1168 push dx
|
pascal@19515
|
1169 xchg ax,di
|
pascal@19515
|
1170 mul cx
|
pascal@19515
|
1171 xchg ax,di
|
pascal@19515
|
1172 xchg ax,dx
|
pascal@19515
|
1173 xchg ax,si
|
pascal@19515
|
1174 pop ax
|
pascal@19515
|
1175 mul cx
|
pascal@19515
|
1176 add ax,si
|
pascal@19515
|
1177 pop si
|
pascal@19515
|
1178 xchg ax,dx
|
pascal@19515
|
1179 pop ax
|
pascal@19515
|
1180 mov ah,0
|
pascal@19515
|
1181 add di,ax
|
pascal@19515
|
1182 adc dx,0
|
pascal@19515
|
1183
|
pascal@19515
|
1184 jmp @@strtollp
|
pascal@19515
|
1185 @@endstrtol:
|
pascal@19515
|
1186 mov cl,10
|
pascal@19515
|
1187 cmp al,'k'-'a'+10
|
pascal@19515
|
1188 je @@shift
|
pascal@19515
|
1189 mov cl,20
|
pascal@19515
|
1190 cmp al,'m'-'a'+10
|
pascal@19515
|
1191 je @@shift
|
pascal@19515
|
1192 mov cl,30
|
pascal@19515
|
1193 cmp al,'g'-'a'+10
|
pascal@19515
|
1194 jne @@noshift
|
pascal@19515
|
1195 @@shift:
|
pascal@19515
|
1196 rcl di,1
|
pascal@19515
|
1197 shl dx,1
|
pascal@19515
|
1198 loop @@shift
|
pascal@19515
|
1199 @@noshift:
|
pascal@19515
|
1200 popf
|
pascal@19515
|
1201 jnc @@end
|
pascal@19515
|
1202 not dx
|
pascal@19515
|
1203 neg di
|
pascal@19515
|
1204 jne @@end
|
pascal@19515
|
1205 inc dx
|
pascal@19515
|
1206 @@end:
|
pascal@19515
|
1207 xchg ax,di
|
pascal@19634
|
1208 @@popdisiret:
|
pascal@19515
|
1209 pop di
|
pascal@19515
|
1210 pop si
|
pascal@19515
|
1211 endif
|
pascal@19515
|
1212 ret
|
pascal@19515
|
1213
|
pascal@19515
|
1214 endp _strtol
|
pascal@19515
|
1215
|
pascal@19515
|
1216
|
pascal@19515
|
1217 ifdef NO386
|
pascal@19515
|
1218 ;***************************************************************
|
pascal@19515
|
1219 ;u16 topseg();
|
pascal@19515
|
1220 ;***************************************************************
|
pascal@19515
|
1221 global _topseg:near
|
pascal@19515
|
1222 proc _topseg near
|
pascal@19515
|
1223
|
pascal@19515
|
1224 int 12h
|
pascal@19515
|
1225 jnc @@max640k
|
pascal@19515
|
1226 mov ax,640 ; 9000
|
pascal@19515
|
1227 @@max640k:
|
pascal@19634
|
1228 dec ax
|
pascal@19515
|
1229 and al,0C0h
|
pascal@19515
|
1230 mov cl,6
|
pascal@19515
|
1231 shl ax,cl
|
pascal@19515
|
1232 ret
|
pascal@19515
|
1233
|
pascal@19515
|
1234 endp _topseg
|
pascal@19515
|
1235 endif
|
pascal@19515
|
1236
|
pascal@19825
|
1237 ifdef EXTRA
|
pascal@19825
|
1238 p8086
|
pascal@19825
|
1239
|
pascal@19825
|
1240 ;***************************************************************
|
pascal@19825
|
1241 ;int strcmp(const char* a,const char* b);
|
pascal@19825
|
1242 ;***************************************************************
|
pascal@19825
|
1243 global _strcmp:near
|
pascal@19825
|
1244 proc _strcmp near
|
pascal@19825
|
1245
|
pascal@19825
|
1246 pop cx ;caller return address
|
pascal@19825
|
1247 pop bx ; a
|
pascal@19825
|
1248 pop ax ; b
|
pascal@19825
|
1249 push ax
|
pascal@19825
|
1250 push bx
|
pascal@19825
|
1251 push cx
|
pascal@19825
|
1252 push si
|
pascal@19825
|
1253 xchg ax,si
|
pascal@19825
|
1254 sub bx,si
|
pascal@19825
|
1255 @@lp:
|
pascal@19825
|
1256 mov al,[si]
|
pascal@19825
|
1257 sub al,[bx+si]
|
pascal@19825
|
1258 jnz @@out
|
pascal@19825
|
1259 lodsb
|
pascal@19825
|
1260 cmp al,0
|
pascal@19825
|
1261 jne @@lp
|
pascal@19825
|
1262 @@out:
|
pascal@19825
|
1263 cbw
|
pascal@19825
|
1264 pop si
|
pascal@19825
|
1265 ret
|
pascal@19825
|
1266
|
pascal@19825
|
1267 endp _strcmp
|
pascal@19825
|
1268
|
pascal@19825
|
1269
|
pascal@19825
|
1270 ;***************************************************************
|
pascal@19825
|
1271 ;char strstr(const char* a,const char* b);
|
pascal@19825
|
1272 ;***************************************************************
|
pascal@19825
|
1273 global _strstr:near
|
pascal@19825
|
1274 proc _strstr near
|
pascal@19825
|
1275
|
pascal@19825
|
1276 pop ax ;caller return address
|
pascal@19825
|
1277 pop cx ; a
|
pascal@19825
|
1278 pop dx ; b
|
pascal@19825
|
1279 push dx
|
pascal@19825
|
1280 push cx
|
pascal@19825
|
1281 push ax
|
pascal@19825
|
1282 push si
|
pascal@19825
|
1283 @@loop:
|
pascal@19825
|
1284 xor ax,ax
|
pascal@19825
|
1285 mov si,cx
|
pascal@19825
|
1286 cmp [si],al ; *a
|
pascal@19825
|
1287 jz @@end ; return ax = NULL
|
pascal@19825
|
1288 mov bx,dx
|
pascal@19825
|
1289 sub bx,si
|
pascal@19825
|
1290 @@match:
|
pascal@19825
|
1291 or ah,[bx+si] ; *b
|
pascal@19825
|
1292 jz @@found
|
pascal@19825
|
1293 lodsb
|
pascal@19825
|
1294 sub ah,al
|
pascal@19825
|
1295 jz @@match
|
pascal@19825
|
1296 inc cx
|
pascal@19825
|
1297 jmp @@loop
|
pascal@19825
|
1298 @@found:
|
pascal@19825
|
1299 xchg ax,cx
|
pascal@19825
|
1300 @@end:
|
pascal@19825
|
1301 pop si
|
pascal@19825
|
1302 ret
|
pascal@19825
|
1303
|
pascal@19825
|
1304 endp _strstr
|
pascal@19825
|
1305
|
pascal@19825
|
1306
|
pascal@19825
|
1307 ;***************************************************************
|
pascal@19825
|
1308 ;char *progname(void)
|
pascal@19825
|
1309 ;***************************************************************
|
pascal@19825
|
1310 global _progname:near
|
pascal@19825
|
1311 proc _progname near
|
pascal@19825
|
1312
|
pascal@19825
|
1313 push si di es
|
pascal@19825
|
1314 mov ah,30h
|
pascal@19825
|
1315 int 21h
|
pascal@19825
|
1316 cmp al,3
|
pascal@19825
|
1317 jb @@skip
|
pascal@19825
|
1318 xor di,di
|
pascal@19825
|
1319 mov es,[cs:2Ch]
|
pascal@19825
|
1320 mov cx,-1
|
pascal@19825
|
1321 mov ax,di
|
pascal@19825
|
1322 @@loop1:
|
pascal@19825
|
1323 repne
|
pascal@19825
|
1324 scasb
|
pascal@19825
|
1325 scasb
|
pascal@19825
|
1326 jne @@loop1
|
pascal@19825
|
1327 lea si,[di+2]
|
pascal@19825
|
1328 mov bx, si
|
pascal@19825
|
1329 call strlen
|
pascal@19825
|
1330 xchg ax,cx
|
pascal@19825
|
1331 inc cx
|
pascal@19825
|
1332 call malloc_or_die
|
pascal@19825
|
1333 xchg ax,di
|
pascal@19825
|
1334 push ds
|
pascal@19825
|
1335 push ds
|
pascal@19825
|
1336 push es
|
pascal@19825
|
1337 pop ds
|
pascal@19825
|
1338 pop es
|
pascal@19825
|
1339 push di
|
pascal@19825
|
1340 @@loop2:
|
pascal@19825
|
1341 lodsb
|
pascal@19825
|
1342 stosb
|
pascal@19825
|
1343 or al,al
|
pascal@19825
|
1344 jnz @@loop2
|
pascal@19825
|
1345 pop ax
|
pascal@19825
|
1346 pop ds
|
pascal@19825
|
1347 @@skip:
|
pascal@19825
|
1348 pop es di si
|
pascal@19825
|
1349 ret
|
pascal@19825
|
1350
|
pascal@19825
|
1351 endp _progname
|
pascal@19825
|
1352
|
pascal@19825
|
1353
|
pascal@19825
|
1354 ;***************************************************************
|
pascal@19825
|
1355 ;int chdir(char *path);
|
pascal@19825
|
1356 ;***************************************************************
|
pascal@19825
|
1357 global _chdir:near
|
pascal@19825
|
1358 proc _chdir near
|
pascal@19825
|
1359
|
pascal@19825
|
1360 pop ax
|
pascal@19825
|
1361 pop dx
|
pascal@19825
|
1362 push dx
|
pascal@19825
|
1363 push ax
|
pascal@19825
|
1364 chdir:
|
pascal@19825
|
1365 stc
|
pascal@19825
|
1366 mov ax,713Bh
|
pascal@19825
|
1367 int 21h
|
pascal@19825
|
1368 jnc @@end
|
pascal@19825
|
1369 mov ah,3Bh
|
pascal@19825
|
1370 int 21h
|
pascal@19825
|
1371 @@end:
|
pascal@19825
|
1372 sbb ax,ax
|
pascal@19825
|
1373 ret
|
pascal@19825
|
1374
|
pascal@19825
|
1375 endp _chdir
|
pascal@19825
|
1376
|
pascal@19825
|
1377
|
pascal@19825
|
1378 ;***************************************************************
|
pascal@19825
|
1379 ;int chdirname(char *path)
|
pascal@19825
|
1380 ;***************************************************************
|
pascal@19825
|
1381 global _chdirname:near
|
pascal@19825
|
1382 proc _chdirname near
|
pascal@19825
|
1383
|
pascal@19825
|
1384 pop ax
|
pascal@19825
|
1385 pop bx
|
pascal@19825
|
1386 push bx
|
pascal@19825
|
1387 push ax
|
pascal@19825
|
1388
|
pascal@19825
|
1389 cmp [byte bx+1],3Ah
|
pascal@19825
|
1390 jne @@nodisk
|
pascal@19825
|
1391 mov dl,[bx]
|
pascal@19825
|
1392 or dl,20h
|
pascal@19825
|
1393 sub dl,61h
|
pascal@19825
|
1394 mov ah,0Eh
|
pascal@19825
|
1395 push bx
|
pascal@19825
|
1396 int 21h
|
pascal@19825
|
1397 pop bx
|
pascal@19825
|
1398 inc bx
|
pascal@19825
|
1399 inc bx
|
pascal@19825
|
1400 @@nodisk:
|
pascal@19825
|
1401 mov dx,bx
|
pascal@19825
|
1402 xor cx,cx
|
pascal@19825
|
1403 @@next:
|
pascal@19825
|
1404 mov al,[bx]
|
pascal@19825
|
1405 cmp al,5Ch
|
pascal@19825
|
1406 jne @@tsteos
|
pascal@19825
|
1407 mov cx,bx
|
pascal@19825
|
1408 @@tsteos:
|
pascal@19825
|
1409 inc bx
|
pascal@19825
|
1410 or al,al
|
pascal@19825
|
1411 jnz @@next
|
pascal@19825
|
1412 cbw
|
pascal@19825
|
1413 jcxz @@end
|
pascal@19825
|
1414 mov bx,cx
|
pascal@19825
|
1415 push [word bx]
|
pascal@19825
|
1416 mov [bx],al
|
pascal@19825
|
1417 push bx
|
pascal@19825
|
1418 call chdir
|
pascal@19825
|
1419 pop bx
|
pascal@19825
|
1420 pop [word bx]
|
pascal@19825
|
1421 @@end:
|
pascal@19825
|
1422 ret
|
pascal@19825
|
1423
|
pascal@19825
|
1424 endp _chdirname
|
pascal@19825
|
1425
|
pascal@19825
|
1426
|
pascal@19825
|
1427 ;***************************************************************
|
pascal@19825
|
1428 ;char *ultoa(unsigned long n);
|
pascal@19825
|
1429 ;***************************************************************
|
pascal@19825
|
1430 global _ultoa:near
|
pascal@19825
|
1431 proc _ultoa near
|
pascal@19825
|
1432
|
pascal@19825
|
1433 pop ax
|
pascal@19825
|
1434 pop cx
|
pascal@19825
|
1435 pop dx
|
pascal@19825
|
1436 push dx
|
pascal@19825
|
1437 push cx
|
pascal@19825
|
1438 push ax ; DX:CX = n
|
pascal@19825
|
1439 push si
|
pascal@19825
|
1440 mov si,10
|
pascal@19825
|
1441 mov bx,offset ultoabuf+11
|
pascal@19825
|
1442 @@loop:
|
pascal@19825
|
1443 dec bx
|
pascal@19825
|
1444 xchg ax,dx
|
pascal@19825
|
1445 xor dx,dx
|
pascal@19825
|
1446 div si ; DX:AX = 0000:hi(n)
|
pascal@19825
|
1447 xchg ax,cx ; CX = hi(n)/10
|
pascal@19825
|
1448 div si ; DX:AX = hi(n)%10:lo(n)
|
pascal@19825
|
1449 xchg ax,cx ; CX = lo(n/10)
|
pascal@19825
|
1450 xchg ax,dx ; DX = hi(n)/10 = hi(n/10)
|
pascal@19825
|
1451 add al,'0'
|
pascal@19825
|
1452 mov [bx],al
|
pascal@19825
|
1453 mov ax,cx
|
pascal@19825
|
1454 or ax,dx
|
pascal@19825
|
1455 jnz @@loop
|
pascal@19825
|
1456 xchg ax,bx
|
pascal@19825
|
1457 pop si
|
pascal@19825
|
1458 ret
|
pascal@19825
|
1459
|
pascal@19825
|
1460 endp _ultoa
|
pascal@19825
|
1461
|
pascal@19825
|
1462
|
pascal@19825
|
1463 ;***************************************************************
|
pascal@19825
|
1464 ;unsigned long kver2ul(char *kernel_version);
|
pascal@19825
|
1465 ;***************************************************************
|
pascal@19825
|
1466 global _kver2ul:near
|
pascal@19825
|
1467 proc _kver2ul near
|
pascal@19825
|
1468
|
pascal@19825
|
1469 pop bx
|
pascal@19825
|
1470 pop ax
|
pascal@19825
|
1471 push ax
|
pascal@19825
|
1472 push bx
|
pascal@19825
|
1473 push bp si di
|
pascal@19825
|
1474 xchg ax,si
|
pascal@19825
|
1475 xor di,di
|
pascal@19825
|
1476 push di
|
pascal@19825
|
1477 push di
|
pascal@19825
|
1478 mov bp,sp
|
pascal@19825
|
1479 inc di
|
pascal@19825
|
1480 inc di
|
pascal@19825
|
1481 mov cl,4
|
pascal@19825
|
1482 @@number:
|
pascal@19825
|
1483 xor ax,ax
|
pascal@19825
|
1484 @@digit:
|
pascal@19825
|
1485 shl al,cl
|
pascal@19825
|
1486 shl ax,cl
|
pascal@19825
|
1487 lodsb
|
pascal@19825
|
1488 sub al,30h
|
pascal@19825
|
1489 cmp al,9
|
pascal@19825
|
1490 jbe @@digit
|
pascal@19825
|
1491 mov [bp+di],ah
|
pascal@19825
|
1492 dec di
|
pascal@19825
|
1493 jns @@number
|
pascal@19825
|
1494 pop ax
|
pascal@19825
|
1495 pop dx
|
pascal@19825
|
1496 pop di si bp
|
pascal@19825
|
1497 kver2ulret:
|
pascal@19825
|
1498 ret
|
pascal@19825
|
1499
|
pascal@19825
|
1500 endp _kver2ul
|
pascal@19825
|
1501
|
pascal@19825
|
1502
|
pascal@19825
|
1503 ;***************************************************************
|
pascal@19825
|
1504 ;void try_default_args();
|
pascal@19825
|
1505 ;***************************************************************
|
pascal@19825
|
1506 global _try_default_args:near
|
pascal@19825
|
1507 proc _try_default_args near
|
pascal@19825
|
1508
|
pascal@19825
|
1509 mov bx,offset tazboot_cmd
|
pascal@19825
|
1510 call open
|
pascal@19825
|
1511 jc kver2ulret
|
pascal@19825
|
1512 mov cx,4096
|
pascal@19825
|
1513 mov di,[_heap_top]
|
pascal@19825
|
1514 push cx
|
pascal@19825
|
1515 extrn read_cmdline:near
|
pascal@19825
|
1516 jmp near read_cmdline ; read_cmdline(ax,di,cx)
|
pascal@19825
|
1517
|
pascal@19825
|
1518 endp _try_default_args
|
pascal@19825
|
1519
|
pascal@19825
|
1520 endif
|
pascal@19825
|
1521
|
pascal@19515
|
1522 ends _TEXT
|
pascal@19515
|
1523
|
pascal@19515
|
1524 end
|
pascal@19515
|
1525
|
pascal@19515
|
1526 ;###### END OF FILE ############################################
|
pascal@19825
|
1527
|