rev |
line source |
pascal@19515
|
1 ;***************************************************************
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pascal@19515
|
2 ;****** This file is distributed under GPL
|
pascal@19515
|
3 ;***************************************************************
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pascal@19515
|
4 ideal
|
pascal@19515
|
5 %crefref
|
pascal@19515
|
6 %noincl
|
pascal@19515
|
7 %nomacs
|
pascal@19636
|
8 ifdef NO386
|
pascal@19636
|
9 p8086
|
pascal@19636
|
10 else
|
pascal@19515
|
11 p386
|
pascal@19636
|
12 endif
|
pascal@19515
|
13
|
pascal@19515
|
14 group DGROUP _TEXT,_DATA,_BSS
|
pascal@19515
|
15 assume cs:DGROUP,ds:DGROUP
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pascal@19515
|
16
|
pascal@19515
|
17 segment _DATA byte public use16 'DATA'
|
pascal@19515
|
18
|
pascal@20451
|
19 global _heap_top
|
pascal@20451
|
20 extrn _bss_end
|
pascal@19546
|
21 _heap_top dw _bss_end
|
pascal@19546
|
22 msg_hang db "High mem corrupted - not exiting to DOS"
|
pascal@20527
|
23 msg_lf db 10,0
|
pascal@20451
|
24 vcpi_alloc_err db "VCPI "
|
pascal@20451
|
25 msg_malloc db "malloc error",0
|
pascal@19825
|
26 ifdef EXTRA
|
pascal@19825
|
27 tazboot_cmd db "tazboot.cmd",0
|
pascal@19825
|
28 endif
|
pascal@19515
|
29
|
pascal@19515
|
30 ends _DATA
|
pascal@19515
|
31
|
pascal@19515
|
32 segment _BSS byte public use16 'BSS'
|
pascal@19515
|
33
|
pascal@20538
|
34 _xfer_buf db 4096 dup (?)
|
pascal@19515
|
35 global _no_exit:byte
|
pascal@19515
|
36 _no_exit db ?
|
pascal@19515
|
37 filecnt db ? ; in fact 0 minus file count...
|
pascal@19515
|
38 nextfilename dw ?
|
pascal@19571
|
39 ifdef LARGE_IMAGES
|
pascal@19571
|
40 curdata dw ?
|
pascal@19571
|
41 endif
|
pascal@19825
|
42 ifdef EXTRA
|
pascal@19825
|
43 ultoabuf db 12 dup (?)
|
pascal@19825
|
44 endif
|
pascal@19515
|
45
|
pascal@19515
|
46 ends _BSS
|
pascal@19515
|
47
|
pascal@19515
|
48 segment _TEXT byte public use16 'CODE'
|
pascal@19515
|
49
|
pascal@19515
|
50 ;***************************************************************
|
pascal@20538
|
51 ;_fastcall void strcpy(const char* a, const char* b);
|
pascal@20539
|
52 ;_fastcall void strcat(const char* a, const char* b);
|
pascal@20539
|
53 ;_fastcall void strcatb(const char* a, const char* b);
|
pascal@19538
|
54 ;***************************************************************
|
pascal@20528
|
55 global @strcatb$qpxzct1:near
|
pascal@20528
|
56 proc @strcatb$qpxzct1 near
|
pascal@19538
|
57
|
pascal@19826
|
58 ifdef EXTRA
|
pascal@20142
|
59 mov cl,7Fh
|
pascal@20539
|
60 db 0bah ; mov dx,imm opcode
|
pascal@20528
|
61 global @strcat$qpxzct1:near
|
pascal@20528
|
62 @strcat$qpxzct1:
|
pascal@20142
|
63 mov cl,80h
|
pascal@20539
|
64 db 0bah ; mov dx,imm opcode
|
pascal@20528
|
65 global @strcpy$qpxzct1:near
|
pascal@20528
|
66 @strcpy$qpxzct1:
|
pascal@20142
|
67 xor cx,cx
|
pascal@19826
|
68 endif
|
pascal@19538
|
69 push si
|
pascal@20538
|
70 mov si,bx ; a
|
pascal@20538
|
71 xchg ax,dx ; b
|
pascal@19826
|
72 ifdef EXTRA
|
pascal@20142
|
73 jcxz @@nocat
|
pascal@19826
|
74 endif
|
pascal@19538
|
75 @@catlp:
|
pascal@19538
|
76 lodsb
|
pascal@20527
|
77 or al,al
|
pascal@19538
|
78 jne @@catlp
|
pascal@19538
|
79 dec si
|
pascal@19826
|
80 ifdef EXTRA
|
pascal@20142
|
81 cmp dx,si
|
pascal@20142
|
82 adc al,cl ; set S when dx != si or cl = 80
|
pascal@20142
|
83 mov al,20h
|
pascal@20142
|
84 jns @@cpyhead
|
pascal@19826
|
85 endif
|
pascal@19538
|
86 @@nocat:
|
pascal@19538
|
87 @@cpylp:
|
pascal@20142
|
88 mov al,[bx]
|
pascal@20142
|
89 inc bx
|
pascal@20142
|
90 @@cpyhead:
|
pascal@19538
|
91 mov [si],al
|
pascal@19538
|
92 inc si
|
pascal@20527
|
93 or al,al
|
pascal@19538
|
94 jne @@cpylp
|
pascal@20142
|
95 strfound:
|
pascal@20142
|
96 xchg ax,dx
|
pascal@20142
|
97 strend:
|
pascal@19538
|
98 pop si
|
pascal@20142
|
99 ret
|
pascal@19538
|
100
|
pascal@20528
|
101 endp @strcatb$qpxzct1
|
pascal@19538
|
102
|
pascal@19538
|
103
|
pascal@20146
|
104 ifdef EXTRA
|
pascal@20146
|
105 p8086
|
pascal@20146
|
106 ;***************************************************************
|
pascal@20538
|
107 ;_fastcall char strstr(const char* a,const char* b);
|
pascal@20146
|
108 ;***************************************************************
|
pascal@20528
|
109 global @strstr$qpxzct1:near
|
pascal@20528
|
110 proc @strstr$qpxzct1 near
|
pascal@20146
|
111
|
pascal@20538
|
112 xchg ax,cx ; b
|
pascal@20538
|
113 mov dx,bx ; a
|
pascal@20146
|
114 push si
|
pascal@20146
|
115 @@loop:
|
pascal@20146
|
116 xor ax,ax
|
pascal@20146
|
117 mov si,dx
|
pascal@20146
|
118 cmp [si],al ; *a
|
pascal@20146
|
119 jz strend ; return ax = NULL
|
pascal@20146
|
120 mov bx,cx
|
pascal@20146
|
121 @@match:
|
pascal@20146
|
122 or ah,[bx] ; *b
|
pascal@20146
|
123 jz strfound
|
pascal@20146
|
124 inc bx
|
pascal@20146
|
125 lodsb
|
pascal@20146
|
126 sub ah,al
|
pascal@20146
|
127 jz @@match
|
pascal@20146
|
128 inc dx
|
pascal@20146
|
129 jmp @@loop
|
pascal@20146
|
130
|
pascal@20528
|
131 endp @strstr$qpxzct1
|
pascal@20146
|
132
|
pascal@20146
|
133
|
pascal@20146
|
134 ;***************************************************************
|
pascal@20538
|
135 ;_fastcall int strcmp(const char* a,const char* b);
|
pascal@20146
|
136 ;***************************************************************
|
pascal@20528
|
137 global @strcmp$qpxzct1:near
|
pascal@20528
|
138 proc @strcmp$qpxzct1 near
|
pascal@20146
|
139
|
pascal@20146
|
140 push si
|
pascal@20146
|
141 xchg ax,si
|
pascal@20146
|
142 dec bx
|
pascal@20146
|
143 @@lp:
|
pascal@20146
|
144 inc bx
|
pascal@20146
|
145 lodsb
|
pascal@20146
|
146 sub al,[bx]
|
pascal@20146
|
147 jnz @@out
|
pascal@20510
|
148 or al,al
|
pascal@20146
|
149 jnz @@lp
|
pascal@20146
|
150 @@out:
|
pascal@20146
|
151 cbw
|
pascal@20146
|
152 pop si
|
pascal@20146
|
153 ret
|
pascal@20146
|
154
|
pascal@20528
|
155 endp @strcmp$qpxzct1
|
pascal@20146
|
156 endif
|
pascal@20146
|
157
|
pascal@20146
|
158
|
pascal@19538
|
159 ;***************************************************************
|
pascal@20538
|
160 ;_fastcall void puts(const char* s):
|
pascal@19515
|
161 ;***************************************************************
|
pascal@20528
|
162 global @puts$qpxzc:near
|
pascal@20528
|
163 proc @puts$qpxzc near
|
pascal@19515
|
164
|
pascal@20486
|
165 ; global puts:near ; puts(bx)
|
pascal@19515
|
166 puts:
|
pascal@20510
|
167 call @@putsz
|
pascal@20527
|
168 mov bx,offset msg_lf
|
pascal@20527
|
169 mov dl,13
|
pascal@20510
|
170 @@putcz:
|
pascal@20160
|
171 mov ah,2
|
pascal@20146
|
172 int 21h
|
pascal@20510
|
173 @@putsz:
|
pascal@20160
|
174 mov dl,[bx]
|
pascal@20146
|
175 inc bx
|
pascal@20160
|
176 or dl,dl
|
pascal@20510
|
177 jne @@putcz ; ZF=1 (for malloc failure)
|
pascal@19538
|
178 ret
|
pascal@19515
|
179
|
pascal@20528
|
180 endp @puts$qpxzc
|
pascal@19515
|
181
|
pascal@19515
|
182
|
pascal@19515
|
183 ;***************************************************************
|
pascal@20538
|
184 ;_fastcall int fileattr(const char* name);
|
pascal@19538
|
185 ;***************************************************************
|
pascal@20528
|
186 global @fileattr$qpxzc:near
|
pascal@20528
|
187 proc @fileattr$qpxzc near
|
pascal@19538
|
188
|
pascal@19538
|
189 mov ax,4300h
|
pascal@20538
|
190 call dos_filename
|
pascal@19538
|
191 xchg ax,cx
|
pascal@19538
|
192 jmp chkc
|
pascal@19538
|
193
|
pascal@20528
|
194 endp @fileattr$qpxzc
|
pascal@19538
|
195
|
pascal@19538
|
196
|
pascal@19538
|
197 ;***************************************************************
|
pascal@20538
|
198 ;_fastcall int open(const char* name, int flags=O_RDONLY);
|
pascal@19515
|
199 ;***************************************************************
|
pascal@20538
|
200 global openargs:near ; openargs(bx)
|
pascal@20538
|
201 openargs:
|
pascal@20538
|
202 cmp [byte bx],'@'
|
pascal@20538
|
203 stc
|
pascal@20538
|
204 jne fail
|
pascal@20538
|
205 inc bx
|
pascal@20538
|
206
|
pascal@20528
|
207 global @open$qpxzc:near
|
pascal@20528
|
208 proc @open$qpxzc near
|
pascal@19515
|
209
|
pascal@19546
|
210 global open:near ; open(bx)
|
pascal@19515
|
211 open:
|
pascal@20538
|
212 mov ax,3d00h ; read-only+compatibility
|
pascal@20538
|
213 ;mov cl,0 ; attribute mask
|
pascal@20538
|
214 dos_filename:
|
pascal@19515
|
215 mov dx,bx
|
pascal@19515
|
216 dos:
|
pascal@19515
|
217 int 21h
|
pascal@19538
|
218 chkc:
|
pascal@19515
|
219 jnc doret
|
pascal@19515
|
220 fail:
|
pascal@19515
|
221 sbb ax,ax ; ax=-1 CF
|
pascal@19515
|
222 cwd
|
pascal@19515
|
223 doret:
|
pascal@19515
|
224 ifndef NO386
|
pascal@19538
|
225 push dx ; see next_chunk:lseek
|
pascal@19538
|
226 push ax
|
pascal@19538
|
227 pop eax
|
pascal@19515
|
228 endif
|
pascal@19515
|
229 ret
|
pascal@19515
|
230
|
pascal@20528
|
231 endp @open$qpxzc
|
pascal@19515
|
232
|
pascal@19515
|
233
|
pascal@19515
|
234 ;***************************************************************
|
pascal@20538
|
235 ;_fastcall int close(int fd);
|
pascal@19515
|
236 ;***************************************************************
|
pascal@20528
|
237 global @close$qi:near
|
pascal@20528
|
238 proc @close$qi near
|
pascal@19515
|
239
|
pascal@20540
|
240 global close:near ; close(ax)
|
pascal@19515
|
241 close:
|
pascal@20540
|
242 xchg ax,bx
|
pascal@19515
|
243 mov ah,3Eh
|
pascal@19515
|
244 or bx,bx
|
pascal@19515
|
245 jnz dos
|
pascal@19515
|
246 ret
|
pascal@19515
|
247
|
pascal@20528
|
248 endp @close$qi
|
pascal@19515
|
249
|
pascal@19515
|
250
|
pascal@19515
|
251 ;***************************************************************
|
pascal@20538
|
252 ;_fastcall int read(int fd, void* data, int sz);
|
pascal@20538
|
253 ;_fastcall int write(int fd, const void* data, int sz);
|
pascal@19515
|
254 ;***************************************************************
|
pascal@20528
|
255 global @read$qipvi:near
|
pascal@20528
|
256 proc @read$qipvi near
|
pascal@19515
|
257
|
pascal@20146
|
258 ifdef WRITE
|
pascal@19580
|
259 stc
|
pascal@19634
|
260 db 0B0h ; mov al,im
|
pascal@20528
|
261 global @write$qipvi:near
|
pascal@20528
|
262 @write$qipvi:
|
pascal@19580
|
263 clc
|
pascal@20146
|
264 endif
|
pascal@20538
|
265 xchg ax,bx ; fd
|
pascal@20538
|
266 xchg ax,dx ; data
|
pascal@20538
|
267 xchg ax,cx ; sz
|
pascal@20146
|
268 ifdef WRITE
|
pascal@19580
|
269 mov ah,40h
|
pascal@19580
|
270 sbb ah,0
|
pascal@20146
|
271 else
|
pascal@20528
|
272 global @read$cxdxbx:near
|
pascal@20528
|
273 @read$cxdxbx:
|
pascal@20146
|
274 mov ah,3Fh
|
pascal@20146
|
275 endif
|
pascal@19515
|
276 jcxz fail
|
pascal@19515
|
277 jmp dos
|
pascal@19515
|
278
|
pascal@20528
|
279 endp @read$qipvi
|
pascal@19515
|
280
|
pascal@19515
|
281 ;***************************************************************
|
pascal@20538
|
282 ;_fastcall long lseekset(int fd, unsigned sz);
|
pascal@19515
|
283 ;***************************************************************
|
pascal@19899
|
284
|
pascal@20538
|
285 global @lseekset$qiui:near
|
pascal@20538
|
286 proc @lseekset$qiui near
|
pascal@19515
|
287
|
pascal@20538
|
288 xchg ax,bx ; fd
|
pascal@20538
|
289 xor cx,cx ; sz hi
|
pascal@19571
|
290 lseekset:
|
pascal@19571
|
291 clc
|
pascal@19634
|
292 db 0B0h ; mov al,im
|
pascal@20486
|
293 ; global rewind:near
|
pascal@19634
|
294 rewind: ; rewind(bx)
|
pascal@19634
|
295 stc
|
pascal@19571
|
296 mov ax,4200h
|
pascal@19571
|
297 jnc dos
|
pascal@19571
|
298 lseek0: ; lseek0(bx,ax=dir)
|
pascal@19571
|
299 cwd
|
pascal@19571
|
300 xor cx,cx
|
pascal@19515
|
301 jmp dos
|
pascal@19515
|
302
|
pascal@20538
|
303 endp @lseekset$qiui
|
pascal@19825
|
304
|
pascal@20538
|
305 ifdef EXTRA
|
pascal@20538
|
306
|
pascal@20534
|
307 ;typedef unsigned dirsizetype;
|
pascal@20534
|
308 struc isostate ; struct isostate {
|
pascal@20534
|
309 fd dw ? ; 0 int fd;
|
pascal@20534
|
310 filemod dw ? ; 2 unsigned short filemod;
|
pascal@20534
|
311 fileofs dd ? ; 4 unsigned long fileofs;
|
pascal@20534
|
312 filesize dd ? ; 8 unsigned long filesize;
|
pascal@20534
|
313 filename dw ? ;12 char *filename;
|
pascal@20534
|
314 curdirsize dw ? ;14 dirsizetype curdirsize;
|
pascal@20534
|
315 dirsize dw ? ;16 dirsizetype dirsize;
|
pascal@20534
|
316 curdirofs dd ? ;18 unsigned long curdirofs;
|
pascal@20534
|
317 dirofs dd ? ;22 unsigned long dirofs;
|
pascal@20534
|
318 curpos dw ? ;26 unsigned curpos;
|
pascal@20534
|
319 buffer db 2560 dup(?) ;28 char buffer[2048+512];
|
pascal@20534
|
320 ends ; } isostate;
|
pascal@19825
|
321 ;***************************************************************
|
pascal@20538
|
322 ;_fastcall long isolseek(const unsigned long *offset);
|
pascal@19825
|
323 ;***************************************************************
|
pascal@20528
|
324 global @isolseek$qpxul:near
|
pascal@20528
|
325 proc @isolseek$qpxul near
|
pascal@19825
|
326
|
pascal@20534
|
327 isolseek:
|
pascal@19825
|
328 mov dx,[bx]
|
pascal@19825
|
329 mov cx,[bx+2]
|
pascal@19825
|
330 extrn _isostate:isostate
|
pascal@19825
|
331 mov bx,[_isostate.fd]
|
pascal@20538
|
332 jmp lseekset
|
pascal@20534
|
333
|
pascal@20538
|
334 endp @isolseek$qpxul
|
pascal@20534
|
335
|
pascal@20534
|
336 ;***************************************************************
|
pascal@20538
|
337 ;_fastcall int isoreadsector(const unsigned long *offset);
|
pascal@20534
|
338 ;***************************************************************
|
pascal@20534
|
339 global @isoreadsector$qpxul:near
|
pascal@20534
|
340 proc @isoreadsector$qpxul near
|
pascal@20534
|
341
|
pascal@20534
|
342 call isolseek
|
pascal@20528
|
343 and ax,dx
|
pascal@20528
|
344 inc ax
|
pascal@20534
|
345 jz @@fail
|
pascal@20534
|
346 mov cx,2560
|
pascal@20534
|
347 mov dx,offset _isostate.buffer
|
pascal@20534
|
348 mov bx,[_isostate.fd]
|
pascal@20534
|
349 call @read$cxdxbx ; read(fd,buffer,2560)
|
pascal@20534
|
350 @@fail:
|
pascal@20534
|
351 cmp ax,2048
|
pascal@20534
|
352 sbb ax,ax
|
pascal@20528
|
353 ret
|
pascal@20534
|
354
|
pascal@20534
|
355 endp @isoreadsector$qpxul
|
pascal@20534
|
356
|
pascal@19825
|
357 endif
|
pascal@19515
|
358
|
pascal@19515
|
359
|
pascal@19515
|
360 ;***************************************************************
|
pascal@20538
|
361 ;_fastcall int strhead(const char* a,const char* b);
|
pascal@19515
|
362 ;***************************************************************
|
pascal@20528
|
363 global @strhead$qpxzct1:near
|
pascal@20528
|
364 proc @strhead$qpxzct1 near
|
pascal@19515
|
365
|
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@20528
|
379 endp @strhead$qpxzct1
|
pascal@19515
|
380
|
pascal@19515
|
381
|
pascal@19515
|
382 ;***************************************************************
|
pascal@20538
|
383 ;_fastcall char* malloc_or_die(unsigned size);
|
pascal@19515
|
384 ;***************************************************************
|
pascal@20528
|
385 global @malloc_or_die$qui:near
|
pascal@20528
|
386 proc @malloc_or_die$qui near
|
pascal@19515
|
387
|
pascal@20540
|
388 xchg ax,cx ; size
|
pascal@19515
|
389 global malloc_or_die:near ; malloc_or_die(cx)
|
pascal@19515
|
390 malloc_or_die:
|
pascal@20510
|
391 mov ax,[_heap_top] ; return value
|
pascal@20510
|
392 mov bx,sp
|
pascal@20510
|
393 add bh,-14h ; MIN_STACK=_1k+PAGE_SIZE
|
pascal@20510
|
394 sub bx,ax ; can't overflow
|
pascal@20510
|
395 cmp bx,cx
|
pascal@20456
|
396 mov bx,offset msg_malloc
|
pascal@20510
|
397 jb die
|
pascal@20510
|
398 add [_heap_top],cx ; _BEG has zero'd heap
|
pascal@19515
|
399 ret
|
pascal@19515
|
400
|
pascal@20528
|
401 endp @malloc_or_die$qui
|
pascal@19515
|
402
|
pascal@19515
|
403
|
pascal@19515
|
404 ;***************************************************************
|
pascal@20538
|
405 ;_fastcall int die(const char* msg);
|
pascal@19538
|
406 ;int exit();
|
pascal@19515
|
407 ;int abort();
|
pascal@19515
|
408 ;***************************************************************
|
pascal@20528
|
409 global @die$qpxzc:near
|
pascal@20528
|
410 proc @die$qpxzc near
|
pascal@20528
|
411 @die$qpxzc:
|
pascal@19515
|
412 global die:near ; die(bx)
|
pascal@19515
|
413 die:
|
pascal@19515
|
414 call puts
|
pascal@20486
|
415 ; global _exit:near
|
pascal@19538
|
416 _exit:
|
pascal@19515
|
417 mov al,[_no_exit]
|
pascal@20527
|
418 or al,al
|
pascal@19515
|
419 jne @@hang
|
pascal@19515
|
420 extrn exit:near
|
pascal@19515
|
421 inc ax
|
pascal@19515
|
422 jmp near exit
|
pascal@19515
|
423 @@hang:
|
pascal@19515
|
424 mov bx, offset msg_hang
|
pascal@19515
|
425 call puts
|
pascal@20486
|
426 ; global _abort:near
|
pascal@19515
|
427 _abort:
|
pascal@19515
|
428 cli
|
pascal@19515
|
429 @@stop:
|
pascal@19515
|
430 hlt
|
pascal@19515
|
431 jmp @@stop
|
pascal@19515
|
432
|
pascal@20528
|
433 endp @die$qpxzc
|
pascal@19515
|
434
|
pascal@19546
|
435 struc image_himem ;struct image_himem {
|
pascal@19546
|
436 fd dw ? ; 0 int fd;
|
pascal@19546
|
437 fallback dd ? ; 2 u32 fallback;
|
pascal@19546
|
438 size dd ? ; 6 u32 size;
|
pascal@19546
|
439 remaining dd ? ;10 u32 remaining;
|
pascal@19546
|
440 buf dd ? ;14 u32 buf;
|
pascal@19546
|
441 bufv dw ? ;18 u32 *bufv;
|
pascal@19546
|
442 errmsg dw ? ;20 char *errmsg;
|
pascal@19546
|
443 chunk_size dd ? ;22 u32 chunk_size;
|
pascal@19546
|
444 next_chunk dw ? ;26 void (*next_chunk)(struct image_himem *);
|
pascal@19546
|
445 state dw ? ;28 u16 state;
|
pascal@19546
|
446 fd2close dw ? ;30 u16 fd2close;
|
pascal@19546
|
447 ends ;};
|
pascal@19515
|
448
|
pascal@19636
|
449 ;***************************************************************
|
pascal@20484
|
450 ;long next_chunk(struct image_himem *di);
|
pascal@19636
|
451 ;***************************************************************
|
pascal@19636
|
452 proc next_chunk near
|
pascal@19636
|
453
|
pascal@19636
|
454 push si
|
pascal@20540
|
455 mov ax,[(image_himem di).fd]
|
pascal@19636
|
456 call close
|
pascal@19636
|
457 ifndef NO386
|
pascal@19636
|
458 xor eax,eax
|
pascal@19636
|
459 else
|
pascal@19636
|
460 xor ax,ax
|
pascal@20485
|
461 cwd
|
pascal@19636
|
462 endif
|
pascal@19636
|
463 mov [(image_himem di).fd],ax
|
pascal@19636
|
464 mov bx,[(image_himem di).state]
|
pascal@19636
|
465 cmp al,[bx] ; ""
|
pascal@19636
|
466 jz @@end
|
pascal@19636
|
467 mov si,bx
|
pascal@19636
|
468 @@scan:
|
pascal@19636
|
469 lodsb
|
pascal@19636
|
470 mov cx,si
|
pascal@19636
|
471 cmp al,','
|
pascal@19636
|
472 jz @@eos
|
pascal@20527
|
473 or al,al
|
pascal@19636
|
474 jnz @@scan
|
pascal@19636
|
475 dec cx
|
pascal@19636
|
476 @@eos:
|
pascal@19636
|
477 mov [(image_himem di).state],cx
|
pascal@19636
|
478 dec si
|
pascal@19636
|
479 push [word si]
|
pascal@20485
|
480 mov [byte si],ah ; set temp eos
|
pascal@19636
|
481 call open
|
pascal@19636
|
482 pop [word si] ; restore string
|
pascal@19636
|
483 jc @@die
|
pascal@19636
|
484 mov [(image_himem di).fd],ax
|
pascal@19636
|
485 mov [(image_himem di).fd2close],ax
|
pascal@19636
|
486 xchg ax,bx
|
pascal@19636
|
487 mov ax,4202h ; SEEK_END
|
pascal@19636
|
488 call lseek0
|
pascal@19636
|
489 @@die:
|
pascal@19636
|
490 mov bx,[(image_himem di).errmsg]
|
pascal@19636
|
491 jc die
|
pascal@19636
|
492 mov bx,[(image_himem di).fd]
|
pascal@19636
|
493 ifndef NO386
|
pascal@19636
|
494 push eax
|
pascal@19636
|
495 call rewind
|
pascal@19636
|
496 pop eax
|
pascal@19636
|
497 @@end:
|
pascal@19636
|
498 mov [(image_himem di).chunk_size],eax
|
pascal@19636
|
499 else
|
pascal@19636
|
500 push ax
|
pascal@19636
|
501 push dx
|
pascal@19636
|
502 call rewind
|
pascal@19636
|
503 pop dx
|
pascal@19636
|
504 pop ax
|
pascal@19636
|
505 @@end:
|
pascal@19636
|
506 mov [word (image_himem di).chunk_size],ax
|
pascal@19636
|
507 mov [word ((image_himem di).chunk_size)+2],dx
|
pascal@19636
|
508 endif
|
pascal@19636
|
509 pop si
|
pascal@19636
|
510 ret
|
pascal@19636
|
511
|
pascal@19636
|
512 endp next_chunk
|
pascal@19636
|
513
|
pascal@19636
|
514
|
pascal@19571
|
515 ifdef LARGE_IMAGES
|
pascal@19571
|
516 struc data_himem ;struct data_himem {
|
pascal@19571
|
517 first dd ? ; 0 u32 first;
|
pascal@19571
|
518 cacheidx dw ? ; 4 int cacheidx;
|
pascal@19571
|
519 pageidx dw ? ; 6 int pageidx;
|
pascal@19571
|
520 cache dd 1024 dup(?) ; 8 int cache;
|
pascal@19571
|
521 page dd 1024 dup(?) ;4104 int page;
|
pascal@19571
|
522 ends ;}; // size=8200
|
pascal@19571
|
523 endif
|
pascal@19571
|
524
|
pascal@19515
|
525 ;***************************************************************
|
pascal@20538
|
526 ;_fastcall u32* malloc_bufv_or_die(struct image_himem *m);
|
pascal@19538
|
527 ;***************************************************************
|
pascal@20528
|
528 global @malloc_bufv_or_die$qp11image_himem:near
|
pascal@20528
|
529 proc @malloc_bufv_or_die$qp11image_himem near
|
pascal@19538
|
530
|
pascal@19636
|
531 p386
|
pascal@19538
|
532 push si
|
pascal@20538
|
533 mov si,bx
|
pascal@19571
|
534 ifdef LARGE_IMAGES
|
pascal@20527
|
535 movzx ecx,[word ((image_himem si).size) + 2]
|
pascal@19571
|
536 shr cx,4 ; pages index size = size >> 20
|
pascal@19571
|
537 add cx,8+4096+8
|
pascal@19571
|
538 call malloc_or_die
|
pascal@20527
|
539 mov cx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19571
|
540 add ecx,[(image_himem si).size]
|
pascal@19571
|
541 shr ecx,12
|
pascal@19571
|
542 mov [curdata],ax
|
pascal@19571
|
543 else
|
pascal@19546
|
544 mov ecx,[(image_himem si).size]
|
pascal@19538
|
545 dec ecx
|
pascal@19538
|
546 shr ecx,12
|
pascal@19538
|
547 inc cx ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19538
|
548 push cx
|
pascal@19538
|
549 inc cx ; cnt+1
|
pascal@19538
|
550 shl cx,2 ; bufv => vcpi => vm86
|
pascal@19538
|
551 ; our malloc zeroes allocated mem: bufv[cnt]=0;
|
pascal@19538
|
552 ; Allocate pages, storing addrs in addrbuf
|
pascal@19538
|
553 call malloc_or_die
|
pascal@19571
|
554 pop cx
|
pascal@19571
|
555 push ax
|
pascal@19571
|
556 endif
|
pascal@19546
|
557 mov [(image_himem si).bufv],ax
|
pascal@19571
|
558 xchg ax,si
|
pascal@19538
|
559 @@vcpi_alloc:
|
pascal@19538
|
560 xor edx,edx
|
pascal@19538
|
561 mov ax,0DE04h
|
pascal@19538
|
562 int 67h
|
pascal@19538
|
563 or ah,ah
|
pascal@19538
|
564 mov bx,offset vcpi_alloc_err
|
pascal@19571
|
565 jnz die
|
pascal@19571
|
566 ; for (i = cnt-1; i >= 0; i--)
|
pascal@19571
|
567 ifdef LARGE_IMAGES
|
pascal@19571
|
568 mov eax,ecx
|
pascal@19571
|
569 dec eax
|
pascal@19571
|
570 else
|
pascal@19571
|
571 mov ax,cx
|
pascal@19571
|
572 dec ax
|
pascal@19571
|
573 cwde
|
pascal@19571
|
574 endif
|
pascal@19571
|
575 shl eax,12 ; i*_4k
|
pascal@19571
|
576 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
|
pascal@19899
|
577 extrn _imgs
|
pascal@19899
|
578 mov bx,offset _imgs+2
|
pascal@19571
|
579 push eax
|
pascal@19571
|
580 add eax,[bx-2+2]
|
pascal@19571
|
581 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
|
pascal@19571
|
582 pop eax ; i*_4k
|
pascal@19571
|
583 jbe @@pmok
|
pascal@19571
|
584 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
|
pascal@19571
|
585 jae @@vcpi_alloc
|
pascal@19571
|
586 @@pmok:
|
pascal@19571
|
587 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
|
pascal@19899
|
588 extrn _imgs
|
pascal@19899
|
589 mov bx,offset _imgs+32+2
|
pascal@19571
|
590 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
591 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
|
pascal@19571
|
592 ja @@initrdok
|
pascal@19571
|
593 mov eax,[bx-2+6] ; initrd.size
|
pascal@19571
|
594 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
595 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
|
pascal@19571
|
596 @@jnc_vcpi_alloc:
|
pascal@19571
|
597 ja @@vcpi_alloc
|
pascal@19571
|
598 @@initrdok:
|
pascal@19571
|
599 ifdef LARGE_IMAGES
|
pascal@19571
|
600 cmp [(data_himem si).first],0
|
pascal@19571
|
601 jne @@notfirst
|
pascal@19571
|
602 mov [(data_himem si).first],edx
|
pascal@19571
|
603 @@notfirst:
|
pascal@19571
|
604 mov bx,[(data_himem si).cacheidx]
|
pascal@19571
|
605 cmp bh,4
|
pascal@19571
|
606 jae @@nextpage
|
pascal@19571
|
607 shl bx,2
|
pascal@19571
|
608 inc [(data_himem si).cacheidx]
|
pascal@19571
|
609 mov [(data_himem bx+si).cache],edx
|
pascal@19571
|
610 loopd @@vcpi_alloc
|
pascal@19571
|
611 mov [(data_himem bx+si).cache],ecx ; last is 0
|
pascal@19571
|
612 @@nextpage:
|
pascal@19571
|
613 and [(data_himem si).cacheidx],0
|
pascal@19571
|
614 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
615 mov [(data_himem bx+si).page],edx
|
pascal@19571
|
616 add [(data_himem si).pageidx],4
|
pascal@19571
|
617 push cx
|
pascal@19571
|
618 lea cx,[(data_himem si).cache]
|
pascal@19571
|
619 ifdef NO386
|
pascal@19571
|
620 push edx
|
pascal@19571
|
621 pop dx
|
pascal@19571
|
622 pop ax
|
pascal@19571
|
623 endif
|
pascal@19571
|
624 call storepage ; storepage(edx,cx)
|
pascal@19571
|
625 pop cx
|
pascal@19571
|
626 or ecx,ecx ; clear C
|
pascal@19571
|
627 jnz @@jnc_vcpi_alloc
|
pascal@19571
|
628 mov [dword (data_himem si).cacheidx],ecx
|
pascal@19571
|
629 xchg ax,si
|
pascal@19571
|
630 else
|
pascal@19571
|
631 mov [si],edx
|
pascal@19571
|
632 lodsd ; si=+4
|
pascal@19538
|
633 loop @@vcpi_alloc
|
pascal@19538
|
634 pop ax
|
pascal@19571
|
635 endif
|
pascal@19538
|
636 pop si
|
pascal@19538
|
637 ret
|
pascal@19636
|
638 ifdef NO386
|
pascal@19636
|
639 p8086
|
pascal@19636
|
640 endif
|
pascal@19538
|
641
|
pascal@20528
|
642 endp @malloc_bufv_or_die$qp11image_himem
|
pascal@19538
|
643
|
pascal@19538
|
644
|
pascal@19538
|
645 ;***************************************************************
|
pascal@20538
|
646 ;_fastcall void memcpy_image(struct image_himem *m);
|
pascal@19515
|
647 ;***************************************************************
|
pascal@20528
|
648 global @memcpy_image$qp11image_himem:near
|
pascal@20528
|
649 proc @memcpy_image$qp11image_himem near
|
pascal@19515
|
650
|
pascal@19571
|
651 ifndef NO386
|
pascal@19571
|
652 mov edx,[(image_himem bx).fallback]
|
pascal@19571
|
653 mov eax,[(image_himem bx).buf]
|
pascal@19571
|
654 cmp eax,edx ; if (m->fallback != m->buf)
|
pascal@19571
|
655 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
656 ifdef LARGE_IMAGES
|
pascal@19571
|
657 mov ecx,[(image_himem bx).size]
|
pascal@20146
|
658 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
|
pascal@19571
|
659 push ecx
|
pascal@19571
|
660 else
|
pascal@19571
|
661 push [(image_himem bx).size]
|
pascal@19571
|
662 endif
|
pascal@19571
|
663 push eax
|
pascal@19571
|
664 push 0
|
pascal@19571
|
665 call_memcpy32:
|
pascal@19571
|
666 push edx
|
pascal@19571
|
667 else
|
pascal@19571
|
668 mov ax,[word ((image_himem bx).fallback)]
|
pascal@19571
|
669 mov dx,[word ((image_himem bx).fallback)+2]
|
pascal@19571
|
670 mov cx,[word ((image_himem bx).buf)]
|
pascal@19571
|
671 cmp ax,cx ; if (m->fallback != m->buf)
|
pascal@19571
|
672 jnz @@do
|
pascal@19571
|
673 cmp dx,[word ((image_himem bx).buf)+2]
|
pascal@19571
|
674 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
675 @@do:
|
pascal@19571
|
676 push [word ((image_himem bx).size)+2]
|
pascal@19571
|
677 push [word ((image_himem bx).size)]
|
pascal@19571
|
678 push [word ((image_himem bx).buf)+2]
|
pascal@19571
|
679 push cx
|
pascal@19571
|
680 xor cx,cx
|
pascal@19571
|
681 push cx
|
pascal@19571
|
682 call_memcpy32:
|
pascal@19571
|
683 push dx
|
pascal@19571
|
684 push ax
|
pascal@19571
|
685 ifdef LARGE_IMAGES
|
pascal@19571
|
686 jmp @@memcpy
|
pascal@20146
|
687 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
|
pascal@19636
|
688 p386
|
pascal@19571
|
689 push ecx
|
pascal@19571
|
690 push eax
|
pascal@19571
|
691 push 0
|
pascal@19571
|
692 push edx
|
pascal@19636
|
693 ifdef NO386
|
pascal@19636
|
694 p8086
|
pascal@19636
|
695 endif
|
pascal@19571
|
696 endif
|
pascal@19571
|
697 endif
|
pascal@19571
|
698 @@memcpy:
|
pascal@20528
|
699 extrn memcpy32:near
|
pascal@20528
|
700 call near memcpy32
|
pascal@19571
|
701 @@skip:
|
pascal@19571
|
702 ret
|
pascal@19571
|
703
|
pascal@20528
|
704 endp @memcpy_image$qp11image_himem
|
pascal@19571
|
705
|
pascal@19571
|
706 ;***************************************************************
|
pascal@20538
|
707 ;_fastcall void storepage(u32 *dst);
|
pascal@19571
|
708 ;***************************************************************
|
pascal@20538
|
709 global @storepage$qpul:near
|
pascal@20538
|
710 proc @storepage$qpul near
|
pascal@19571
|
711
|
pascal@19571
|
712 ifndef NO386
|
pascal@19571
|
713 mov edx,[bx]
|
pascal@19571
|
714 else
|
pascal@19571
|
715 mov ax,[bx]
|
pascal@19571
|
716 mov dx,[bx+2]
|
pascal@19571
|
717 endif
|
pascal@20538
|
718 mov cx,offset _xfer_buf
|
pascal@20146
|
719 storepage: ; storepage(edx,cx)
|
pascal@19571
|
720 ifndef NO386
|
pascal@19571
|
721 push 0
|
pascal@19571
|
722 push 4096
|
pascal@19571
|
723 push 0
|
pascal@19571
|
724 else
|
pascal@19571
|
725 xor bx,bx
|
pascal@19571
|
726 push bx
|
pascal@19571
|
727 mov bh,4096/256
|
pascal@19571
|
728 push bx
|
pascal@19571
|
729 xor bx,bx
|
pascal@19571
|
730 push bx
|
pascal@19571
|
731 endif
|
pascal@19571
|
732 push cx
|
pascal@19571
|
733 push ds
|
pascal@19571
|
734 jmp call_memcpy32
|
pascal@19571
|
735
|
pascal@20538
|
736 endp @storepage$qpul
|
pascal@19571
|
737
|
pascal@19571
|
738
|
pascal@19571
|
739 ifdef LARGE_IMAGES
|
pascal@19636
|
740 p386
|
pascal@19571
|
741 ;***************************************************************
|
pascal@20538
|
742 ;_fastcall void reset_bufv(u32 *p);
|
pascal@19571
|
743 ;***************************************************************
|
pascal@20528
|
744 global @reset_bufv$qpul:near
|
pascal@20528
|
745 proc @reset_bufv$qpul near
|
pascal@19571
|
746
|
pascal@20524
|
747 mov [curdata],bx
|
pascal@19571
|
748 and [dword (data_himem bx).cacheidx],0
|
pascal@19571
|
749 ret
|
pascal@19571
|
750
|
pascal@20528
|
751 endp @reset_bufv$qpul
|
pascal@19571
|
752
|
pascal@19571
|
753 ;***************************************************************
|
pascal@19571
|
754 ;u32* prev_bufv();
|
pascal@19571
|
755 ;u32* prev_bufv();
|
pascal@19571
|
756 ;***************************************************************
|
pascal@19571
|
757 global _prev_bufv:near
|
pascal@19571
|
758 global _next_bufv:near
|
pascal@19571
|
759 proc _prev_bufv near
|
pascal@19571
|
760
|
pascal@19571
|
761 stc
|
pascal@19571
|
762 db 73h ; jnc
|
pascal@19571
|
763 _next_bufv:
|
pascal@19571
|
764 clc
|
pascal@20528
|
765 push si
|
pascal@20528
|
766 mov si,[curdata]
|
pascal@19571
|
767 sbb ax,ax
|
pascal@20527
|
768 cmc
|
pascal@20527
|
769 adc ax,[(data_himem si).cacheidx] ; -1/+1
|
pascal@19571
|
770 xor ecx,ecx
|
pascal@19571
|
771 test ax,0fc00h
|
pascal@19571
|
772 jz @@gotpage
|
pascal@19571
|
773 push ax ; FFFF / 0400
|
pascal@19571
|
774 sar ax,8 ; FFFC / 0004
|
pascal@19571
|
775 and al,0fch
|
pascal@19571
|
776 add [(data_himem si).pageidx],ax
|
pascal@19571
|
777 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
778 lea bx,[(data_himem bx+si).page]
|
pascal@19571
|
779 mov edx,ds
|
pascal@19571
|
780 shl edx,4
|
pascal@19571
|
781 lea cx,[(data_himem si).cache]
|
pascal@19571
|
782 add edx,ecx
|
pascal@19571
|
783 mov eax,[bx]
|
pascal@19571
|
784 or eax,eax
|
pascal@19571
|
785 jnz @@pageok
|
pascal@19571
|
786 pop ax
|
pascal@19571
|
787 xchg ax,bx
|
pascal@19571
|
788 pop si
|
pascal@19571
|
789 ret
|
pascal@19571
|
790 @@pageok:
|
pascal@19571
|
791 mov cx,4096
|
pascal@19571
|
792 call memcpy_imagez ; get page
|
pascal@19571
|
793 pop ax ; FFFF / 0400
|
pascal@19571
|
794 cbw
|
pascal@19571
|
795 shr ax,6 ; 03FF / 0000
|
pascal@19571
|
796 @@gotpage:
|
pascal@19571
|
797 mov [(data_himem si).cacheidx],ax
|
pascal@19571
|
798 shl ax,2
|
pascal@19571
|
799 xchg ax,bx
|
pascal@19571
|
800 lea ax,[(data_himem bx+si).cache]
|
pascal@19571
|
801 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
|
pascal@19571
|
802 jnz @@notfirst2
|
pascal@19571
|
803 xchg ax,si ; &first
|
pascal@19571
|
804 @@notfirst2:
|
pascal@19571
|
805 pop si
|
pascal@19571
|
806 ret
|
pascal@19571
|
807
|
pascal@19571
|
808 endp _prev_bufv
|
pascal@19571
|
809 endif
|
pascal@19571
|
810
|
pascal@20146
|
811 ifdef NO386
|
pascal@20146
|
812 p8086
|
pascal@20146
|
813 endif
|
pascal@19571
|
814
|
pascal@19571
|
815 ;***************************************************************
|
pascal@20538
|
816 ;_fastcall void open_image(const char *name, struct image_himem *m);
|
pascal@19515
|
817 ;***************************************************************
|
pascal@20528
|
818 global @open_image$qpxzcp11image_himem:near
|
pascal@20528
|
819 proc @open_image$qpxzcp11image_himem near
|
pascal@19515
|
820
|
pascal@20484
|
821 push di
|
pascal@20485
|
822 xchg ax,di
|
pascal@20538
|
823 ifdef EXTRA
|
pascal@20538
|
824 cmp [(image_himem di).fd],0 ; iso image/kernel ?
|
pascal@20538
|
825 jnz @@alreadydone
|
pascal@20538
|
826 endif
|
pascal@20484
|
827 mov [(image_himem di).state],bx
|
pascal@20484
|
828 push bx
|
pascal@20534
|
829 ifdef EXTRA
|
pascal@20538
|
830 cmp [(image_himem di).next_chunk],0 ; iso image/initrd ?
|
pascal@20538
|
831 jnz @@next
|
pascal@20534
|
832 endif
|
pascal@20534
|
833 mov [(image_himem di).next_chunk],offset next_chunk
|
pascal@19515
|
834 @@next:
|
pascal@19546
|
835 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
836 ifndef NO386
|
pascal@19515
|
837 add eax,3
|
pascal@19515
|
838 and al,0FCh
|
pascal@19546
|
839 add [(image_himem di).size],eax ; m->size += m->chunk_size
|
pascal@19515
|
840 or eax,eax
|
pascal@19515
|
841 else
|
pascal@19515
|
842 add ax,3
|
pascal@19515
|
843 adc dx,0
|
pascal@19515
|
844 and al,0FCh
|
pascal@19546
|
845 add [word (image_himem di).size],ax ; m->size += m->chunk_size
|
pascal@19546
|
846 adc [word ((image_himem di).size)+2],dx
|
pascal@20520
|
847 or ax,dx
|
pascal@19515
|
848 endif
|
pascal@20520
|
849 jnz @@next
|
pascal@20484
|
850 pop [(image_himem di).state]
|
pascal@19546
|
851 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@20538
|
852 @@alreadydone:
|
pascal@20484
|
853 pop di
|
pascal@19515
|
854 ret
|
pascal@19515
|
855
|
pascal@20528
|
856 endp @open_image$qpxzcp11image_himem
|
pascal@19515
|
857
|
pascal@19515
|
858
|
pascal@19515
|
859 ;***************************************************************
|
pascal@20538
|
860 ;_fastcall int read_image(struct image_himem *m);
|
pascal@19515
|
861 ;***************************************************************
|
pascal@20538
|
862 global @read_image$qp11image_himem:near
|
pascal@20538
|
863 proc @read_image$qp11image_himem near
|
pascal@19515
|
864
|
pascal@20539
|
865 push si di
|
pascal@20538
|
866 mov di,bx
|
pascal@20539
|
867 mov si,4096
|
pascal@20539
|
868 push si ; original size
|
pascal@19515
|
869 @@loop:
|
pascal@19538
|
870 ifndef NO386
|
pascal@20539
|
871 movzx ecx,si
|
pascal@19546
|
872 mov eax,[(image_himem di).chunk_size]
|
pascal@19538
|
873 cmp ecx,eax
|
pascal@19538
|
874 jb @@szok
|
pascal@19538
|
875 else
|
pascal@20539
|
876 mov cx,si
|
pascal@19546
|
877 mov ax,[word (image_himem di).chunk_size]
|
pascal@19538
|
878 cmp cx,ax
|
pascal@19515
|
879 jb @@szok
|
pascal@19546
|
880 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
|
pascal@19515
|
881 jne @@szok
|
pascal@20484
|
882 endif
|
pascal@19515
|
883 xchg ax,cx
|
pascal@19515
|
884 @@szok:
|
pascal@19538
|
885 jcxz image_done
|
pascal@20539
|
886 mov dx,offset _xfer_buf
|
pascal@20538
|
887 mov bx,[di]
|
pascal@20528
|
888 call @read$cxdxbx
|
pascal@19538
|
889 jc image_done
|
pascal@19515
|
890 xor cx,cx
|
pascal@20539
|
891 cwd ; ax < 8000h
|
pascal@19538
|
892 ifndef NO386
|
pascal@19538
|
893 cwde ; ax < 8000h
|
pascal@19546
|
894 sub [(image_himem di).chunk_size],eax
|
pascal@20539
|
895 mov bx,ax
|
pascal@19538
|
896 else
|
pascal@19546
|
897 sub [word (image_himem di).chunk_size],ax
|
pascal@20539
|
898 xchg ax,bx
|
pascal@19546
|
899 sbb [word ((image_himem di).chunk_size)+2],dx
|
pascal@19538
|
900 jnz @@fill
|
pascal@19546
|
901 cmp [word (image_himem di).chunk_size],dx
|
pascal@19538
|
902 endif
|
pascal@19538
|
903 jnz @@fill
|
pascal@20539
|
904 dec cx
|
pascal@19515
|
905 @@fill:
|
pascal@20539
|
906 test bl,3
|
pascal@19515
|
907 je @@filled
|
pascal@20539
|
908 mov [bx+_xfer_buf],dh
|
pascal@20539
|
909 inc bx
|
pascal@19515
|
910 jmp @@fill
|
pascal@19515
|
911 @@filled:
|
pascal@19538
|
912 ifndef NO386
|
pascal@19546
|
913 sub [(image_himem di).remaining],eax
|
pascal@19538
|
914 else
|
pascal@20539
|
915 sub [word (image_himem di).remaining],bx
|
pascal@19546
|
916 sbb [word ((image_himem di).remaining)+2],dx
|
pascal@19538
|
917 endif
|
pascal@20539
|
918 sub si,ax
|
pascal@19538
|
919 pushf
|
pascal@20539
|
920 and cx,[(image_himem di).next_chunk]
|
pascal@20484
|
921 jcxz @@same_chunk
|
pascal@20539
|
922 call cx
|
pascal@19538
|
923 @@same_chunk:
|
pascal@19538
|
924 popf
|
pascal@19538
|
925 jnz @@loop
|
pascal@20484
|
926 image_done:
|
pascal@20528
|
927 pop ax ; original size
|
pascal@20539
|
928 sub ax,si
|
pascal@20539
|
929 pop di si
|
pascal@20538
|
930 ret
|
pascal@19515
|
931
|
pascal@20538
|
932 endp @read_image$qp11image_himem
|
pascal@19515
|
933
|
pascal@19515
|
934
|
pascal@19515
|
935 ;***************************************************************
|
pascal@20528
|
936 ;pascal unsigned long strtol(const char *s);
|
pascal@19515
|
937 ;***************************************************************
|
pascal@20528
|
938 global @strtol$qpxzc:near
|
pascal@20528
|
939 proc @strtol$qpxzc near
|
pascal@19515
|
940
|
pascal@20538
|
941 pop ax
|
pascal@20538
|
942 pop bx ; s
|
pascal@19515
|
943 push ax
|
pascal@20528
|
944 ifndef NO386
|
pascal@19515
|
945 xor ebx,ebx
|
pascal@19515
|
946 push si
|
pascal@19634
|
947 jcxz @@end
|
pascal@19515
|
948 mov si,cx
|
pascal@19515
|
949 xor ecx,ecx
|
pascal@19515
|
950 xor eax,eax
|
pascal@19515
|
951 lodsb
|
pascal@19634
|
952 mov dx,ax
|
pascal@19634
|
953 or al,20h
|
pascal@19634
|
954 cmp al,'n' ; vga=normal
|
pascal@19538
|
955 je @@vga
|
pascal@19538
|
956 dec cx
|
pascal@19634
|
957 cmp al,'e' ; vga=extended
|
pascal@19538
|
958 je @@vga
|
pascal@19538
|
959 dec cx
|
pascal@19634
|
960 cmp al,'a' ; vga=ask
|
pascal@19538
|
961 jne @@notvga
|
pascal@19538
|
962 @@vga:
|
pascal@19538
|
963 dec cx
|
pascal@19538
|
964 xchg ax,cx
|
pascal@19538
|
965 cwd
|
pascal@19634
|
966 jmp @@popsiret
|
pascal@19538
|
967 @@notvga:
|
pascal@19538
|
968 mov cx,10 ; radix
|
pascal@19634
|
969 xchg ax,dx
|
pascal@19515
|
970 cmp al,'+'
|
pascal@19515
|
971 je @@radixskip
|
pascal@19515
|
972 cmp al,'-'
|
pascal@19515
|
973 clc
|
pascal@19515
|
974 jne @@radixkeep
|
pascal@19515
|
975 stc
|
pascal@19515
|
976 @@radixskip:
|
pascal@19515
|
977 lodsb
|
pascal@19515
|
978 @@radixkeep:
|
pascal@19515
|
979 pushf
|
pascal@19515
|
980 cmp al,'0'
|
pascal@19515
|
981 jne @@radixok
|
pascal@19515
|
982 mov cl,8
|
pascal@19515
|
983 lodsb
|
pascal@19634
|
984 or al,20h
|
pascal@19634
|
985 cmp al,'x'
|
pascal@19515
|
986 jne @@radixok
|
pascal@19515
|
987 mov cl,16
|
pascal@19515
|
988 @@strtollp:
|
pascal@19515
|
989 lodsb
|
pascal@19515
|
990 @@radixok:
|
pascal@19634
|
991 or al,20h
|
pascal@19515
|
992 sub al,'0'
|
pascal@19515
|
993 jb @@endstrtol
|
pascal@19515
|
994 cmp al,9
|
pascal@19515
|
995 jbe @@digitok
|
pascal@19515
|
996 cmp al,'a'-'0'
|
pascal@19515
|
997 jb @@endstrtol
|
pascal@19515
|
998 sub al,'a'-'0'-10
|
pascal@19515
|
999 @@digitok:
|
pascal@19515
|
1000 cmp al,cl
|
pascal@19515
|
1001 jae @@endstrtol
|
pascal@19515
|
1002 xchg eax,ebx
|
pascal@19515
|
1003 mul ecx
|
pascal@19515
|
1004 add eax,ebx
|
pascal@19515
|
1005 xchg eax,ebx
|
pascal@19515
|
1006 jmp @@strtollp
|
pascal@19515
|
1007 @@endstrtol:
|
pascal@19515
|
1008 mov cl,10
|
pascal@19515
|
1009 cmp al,'k'-'a'+10
|
pascal@19515
|
1010 je @@shift
|
pascal@19515
|
1011 mov cl,20
|
pascal@19515
|
1012 cmp al,'m'-'a'+10
|
pascal@19515
|
1013 je @@shift
|
pascal@19515
|
1014 mov cl,30
|
pascal@19515
|
1015 cmp al,'g'-'a'+10
|
pascal@19515
|
1016 jne @@noshift
|
pascal@19515
|
1017 @@shift:
|
pascal@19515
|
1018 shl ebx,cl
|
pascal@19515
|
1019 @@noshift:
|
pascal@19515
|
1020 popf
|
pascal@19515
|
1021 jnc @@end
|
pascal@19515
|
1022 neg ebx
|
pascal@19515
|
1023 @@end:
|
pascal@19515
|
1024 push ebx
|
pascal@19515
|
1025 pop ax
|
pascal@19515
|
1026 pop dx
|
pascal@19634
|
1027 @@popsiret:
|
pascal@19515
|
1028 pop si
|
pascal@19515
|
1029 else
|
pascal@19515
|
1030 push si
|
pascal@19515
|
1031 push di
|
pascal@19515
|
1032 xor ax,ax
|
pascal@19515
|
1033 cwd
|
pascal@19634
|
1034 jcxz @@goend
|
pascal@19515
|
1035 xchg ax,di
|
pascal@19515
|
1036 mov si,cx
|
pascal@19538
|
1037 lodsb
|
pascal@19634
|
1038 mov bx,ax
|
pascal@19634
|
1039 or al,20h
|
pascal@19538
|
1040 mov cx,-1
|
pascal@19634
|
1041 cmp al,'n' ; vga=normal
|
pascal@19538
|
1042 je @@vga
|
pascal@19538
|
1043 dec cx
|
pascal@19634
|
1044 cmp al,'e' ; vga=extended
|
pascal@19538
|
1045 je @@vga
|
pascal@19538
|
1046 dec cx
|
pascal@19634
|
1047 cmp al,'a' ; vga=ask
|
pascal@19538
|
1048 jne @@notvga
|
pascal@19538
|
1049 @@vga:
|
pascal@19538
|
1050 xchg ax,cx
|
pascal@19538
|
1051 @@goend:
|
pascal@19634
|
1052 jmp @@popdisiret
|
pascal@19538
|
1053 @@notvga:
|
pascal@19515
|
1054 mov cx,10 ; radix
|
pascal@19634
|
1055 xchg ax,bx
|
pascal@19515
|
1056 cmp al,'+'
|
pascal@19515
|
1057 je @@radixskip
|
pascal@19515
|
1058 cmp al,'-'
|
pascal@19515
|
1059 clc
|
pascal@19515
|
1060 jne @@radixkeep
|
pascal@19515
|
1061 stc
|
pascal@19515
|
1062 @@radixskip:
|
pascal@19515
|
1063 lodsb
|
pascal@19515
|
1064 @@radixkeep:
|
pascal@19515
|
1065 pushf
|
pascal@19515
|
1066 cmp al,'0'
|
pascal@19515
|
1067 jne @@radixok
|
pascal@19515
|
1068 mov cl,8
|
pascal@19515
|
1069 lodsb
|
pascal@20146
|
1070 or al,20h
|
pascal@19634
|
1071 cmp al,'x'
|
pascal@19515
|
1072 jne @@radixok
|
pascal@19515
|
1073 mov cl,16
|
pascal@19515
|
1074 @@strtollp:
|
pascal@19515
|
1075 lodsb
|
pascal@19515
|
1076 @@radixok:
|
pascal@19634
|
1077 or al,20h
|
pascal@19515
|
1078 sub al,'0'
|
pascal@19515
|
1079 jb @@endstrtol
|
pascal@19515
|
1080 cmp al,9
|
pascal@19515
|
1081 jbe @@digitok
|
pascal@19515
|
1082 cmp al,'a'-'0'
|
pascal@19515
|
1083 jb @@endstrtol
|
pascal@19515
|
1084 sub al,'a'-'0'-10
|
pascal@19515
|
1085 @@digitok:
|
pascal@19515
|
1086 cmp al,cl
|
pascal@19515
|
1087 jae @@endstrtol
|
pascal@19515
|
1088
|
pascal@19515
|
1089 push ax
|
pascal@19515
|
1090 push si
|
pascal@19515
|
1091 push dx
|
pascal@19515
|
1092 xchg ax,di
|
pascal@19515
|
1093 mul cx
|
pascal@19515
|
1094 xchg ax,di
|
pascal@19515
|
1095 xchg ax,dx
|
pascal@19515
|
1096 xchg ax,si
|
pascal@19515
|
1097 pop ax
|
pascal@19515
|
1098 mul cx
|
pascal@19515
|
1099 add ax,si
|
pascal@19515
|
1100 pop si
|
pascal@19515
|
1101 xchg ax,dx
|
pascal@19515
|
1102 pop ax
|
pascal@19515
|
1103 mov ah,0
|
pascal@19515
|
1104 add di,ax
|
pascal@19515
|
1105 adc dx,0
|
pascal@19515
|
1106
|
pascal@19515
|
1107 jmp @@strtollp
|
pascal@19515
|
1108 @@endstrtol:
|
pascal@19515
|
1109 mov cl,10
|
pascal@19515
|
1110 cmp al,'k'-'a'+10
|
pascal@19515
|
1111 je @@shift
|
pascal@19515
|
1112 mov cl,20
|
pascal@19515
|
1113 cmp al,'m'-'a'+10
|
pascal@19515
|
1114 je @@shift
|
pascal@19515
|
1115 mov cl,30
|
pascal@19515
|
1116 cmp al,'g'-'a'+10
|
pascal@19515
|
1117 jne @@noshift
|
pascal@19515
|
1118 @@shift:
|
pascal@19515
|
1119 rcl di,1
|
pascal@19515
|
1120 shl dx,1
|
pascal@19515
|
1121 loop @@shift
|
pascal@19515
|
1122 @@noshift:
|
pascal@19515
|
1123 popf
|
pascal@19515
|
1124 jnc @@end
|
pascal@19515
|
1125 not dx
|
pascal@19515
|
1126 neg di
|
pascal@19515
|
1127 jne @@end
|
pascal@19515
|
1128 inc dx
|
pascal@19515
|
1129 @@end:
|
pascal@19515
|
1130 xchg ax,di
|
pascal@19634
|
1131 @@popdisiret:
|
pascal@19515
|
1132 pop di
|
pascal@19515
|
1133 pop si
|
pascal@19515
|
1134 endif
|
pascal@20528
|
1135 strtol_ret:
|
pascal@19515
|
1136 ret
|
pascal@19515
|
1137
|
pascal@20528
|
1138 endp @strtol$qpxzc
|
pascal@19515
|
1139
|
pascal@19515
|
1140
|
pascal@19515
|
1141 ifdef NO386
|
pascal@19515
|
1142 ;***************************************************************
|
pascal@19515
|
1143 ;u16 topseg();
|
pascal@19515
|
1144 ;***************************************************************
|
pascal@19515
|
1145 global _topseg:near
|
pascal@19515
|
1146 proc _topseg near
|
pascal@19515
|
1147
|
pascal@19515
|
1148 int 12h
|
pascal@19515
|
1149 jnc @@max640k
|
pascal@19515
|
1150 mov ax,640 ; 9000
|
pascal@19515
|
1151 @@max640k:
|
pascal@19634
|
1152 dec ax
|
pascal@19515
|
1153 and al,0C0h
|
pascal@19515
|
1154 mov cl,6
|
pascal@19515
|
1155 shl ax,cl
|
pascal@19515
|
1156 ret
|
pascal@19515
|
1157
|
pascal@19515
|
1158 endp _topseg
|
pascal@19515
|
1159 endif
|
pascal@19515
|
1160
|
pascal@19825
|
1161 ifdef EXTRA
|
pascal@19825
|
1162 p8086
|
pascal@19825
|
1163 ;***************************************************************
|
pascal@19825
|
1164 ;char *progname(void)
|
pascal@19825
|
1165 ;***************************************************************
|
pascal@19825
|
1166 global _progname:near
|
pascal@19825
|
1167 proc _progname near
|
pascal@19825
|
1168
|
pascal@19825
|
1169 push si di es
|
pascal@19825
|
1170 mov ah,30h
|
pascal@19825
|
1171 int 21h
|
pascal@19875
|
1172 xor di,di
|
pascal@19825
|
1173 cmp al,3
|
pascal@19874
|
1174 mov ax,di
|
pascal@19825
|
1175 jb @@skip
|
pascal@19873
|
1176 ;mov es,[cs:2Ch]
|
pascal@19874
|
1177 mov es,[di+2Ch]
|
pascal@20146
|
1178 mov cx,sp ; big enough
|
pascal@19870
|
1179 @@loop:
|
pascal@19825
|
1180 repne
|
pascal@19825
|
1181 scasb
|
pascal@19825
|
1182 scasb
|
pascal@19870
|
1183 jne @@loop
|
pascal@19870
|
1184 inc di
|
pascal@19870
|
1185 inc di
|
pascal@19870
|
1186 mov si,di ; progname @es:di
|
pascal@19870
|
1187 repne
|
pascal@19870
|
1188 scasb
|
pascal@19870
|
1189 mov cx,di
|
pascal@19874
|
1190 sub cx,si ; progname len
|
pascal@19870
|
1191 call malloc_or_die ; keep cx
|
pascal@19870
|
1192 mov di,ax
|
pascal@19825
|
1193 push ds
|
pascal@19825
|
1194 push es
|
pascal@19825
|
1195 pop ds
|
pascal@19825
|
1196 pop es
|
pascal@19870
|
1197 rep
|
pascal@19870
|
1198 movsb
|
pascal@19870
|
1199 push es
|
pascal@19825
|
1200 pop ds
|
pascal@19825
|
1201 @@skip:
|
pascal@19825
|
1202 pop es di si
|
pascal@19825
|
1203 ret
|
pascal@19825
|
1204
|
pascal@19825
|
1205 endp _progname
|
pascal@19825
|
1206
|
pascal@19825
|
1207
|
pascal@19825
|
1208 ;***************************************************************
|
pascal@20538
|
1209 ;_fastcall void chdirname(char *path)
|
pascal@19825
|
1210 ;***************************************************************
|
pascal@20528
|
1211 global @chdirname$qpzc:near
|
pascal@20528
|
1212 proc @chdirname$qpzc near
|
pascal@19825
|
1213
|
pascal@20146
|
1214 cmp [byte bx+1],3Ah ; ':'
|
pascal@19825
|
1215 jne @@nodisk
|
pascal@19875
|
1216 mov dl,20h
|
pascal@19875
|
1217 or dl,[bx]
|
pascal@19825
|
1218 sub dl,61h
|
pascal@19825
|
1219 mov ah,0Eh
|
pascal@19825
|
1220 int 21h
|
pascal@19825
|
1221 inc bx
|
pascal@19825
|
1222 inc bx
|
pascal@19825
|
1223 @@nodisk:
|
pascal@19825
|
1224 xor cx,cx
|
pascal@19825
|
1225 @@next:
|
pascal@19825
|
1226 mov al,[bx]
|
pascal@19825
|
1227 cmp al,5Ch
|
pascal@19825
|
1228 jne @@tsteos
|
pascal@19875
|
1229 mov dx,bx
|
pascal@19875
|
1230 inc cx
|
pascal@19825
|
1231 @@tsteos:
|
pascal@19825
|
1232 inc bx
|
pascal@19825
|
1233 or al,al
|
pascal@19825
|
1234 jnz @@next
|
pascal@19825
|
1235 jcxz @@end
|
pascal@19875
|
1236 mov bx,dx
|
pascal@19825
|
1237 push [word bx]
|
pascal@19825
|
1238 mov [bx],al
|
pascal@19875
|
1239 stc
|
pascal@20146
|
1240 mov ax,713Bh ; chdir long filename (ds:dx)
|
pascal@19875
|
1241 int 21h
|
pascal@20146
|
1242 mov ah,3Bh ; chdir(ds:dx)
|
pascal@20510
|
1243 jnc @@chdirdone
|
pascal@19875
|
1244 int 21h
|
pascal@20510
|
1245 @@chdirdone:
|
pascal@19825
|
1246 pop [word bx]
|
pascal@19825
|
1247 @@end:
|
pascal@19825
|
1248 ret
|
pascal@19825
|
1249
|
pascal@20528
|
1250 endp @chdirname$qpzc
|
pascal@19825
|
1251
|
pascal@19825
|
1252
|
pascal@19825
|
1253 ;***************************************************************
|
pascal@20538
|
1254 ;_fastcall char *ultoa(unsigned long n);
|
pascal@19825
|
1255 ;***************************************************************
|
pascal@20528
|
1256 global @ultoa$qul:near
|
pascal@20528
|
1257 proc @ultoa$qul near
|
pascal@19825
|
1258
|
pascal@20538
|
1259 xchg ax,cx
|
pascal@20538
|
1260 xchg ax,dx ; AX:CX = n
|
pascal@19825
|
1261 push si
|
pascal@19825
|
1262 mov si,10
|
pascal@19825
|
1263 mov bx,offset ultoabuf+11
|
pascal@19825
|
1264 @@loop:
|
pascal@19825
|
1265 dec bx
|
pascal@19825
|
1266 xor dx,dx
|
pascal@19825
|
1267 div si ; DX:AX = 0000:hi(n)
|
pascal@19825
|
1268 xchg ax,cx ; CX = hi(n)/10
|
pascal@19825
|
1269 div si ; DX:AX = hi(n)%10:lo(n)
|
pascal@19825
|
1270 xchg ax,cx ; CX = lo(n/10)
|
pascal@20528
|
1271 ; AX = hi(n)/10 = hi(n/10)
|
pascal@20528
|
1272 mov [byte bx],'0'
|
pascal@20528
|
1273 add [bx],dl ; DL = n%10
|
pascal@20528
|
1274 mov dx,ax
|
pascal@20528
|
1275 or dx,cx
|
pascal@19825
|
1276 jnz @@loop
|
pascal@19825
|
1277 xchg ax,bx
|
pascal@19825
|
1278 pop si
|
pascal@19825
|
1279 ret
|
pascal@19825
|
1280
|
pascal@20528
|
1281 endp @ultoa$qul
|
pascal@19825
|
1282
|
pascal@19825
|
1283
|
pascal@19825
|
1284 ;***************************************************************
|
pascal@20538
|
1285 ;_fastcall unsigned long kver2ul(char *kernel_version);
|
pascal@19825
|
1286 ;***************************************************************
|
pascal@20528
|
1287 global @kver2ul$qpzc:near
|
pascal@20528
|
1288 proc @kver2ul$qpzc near
|
pascal@19825
|
1289
|
pascal@20146
|
1290 push si
|
pascal@20538
|
1291 mov si,bx
|
pascal@20146
|
1292 xor bx,bx
|
pascal@20146
|
1293 mov cx,304h
|
pascal@19825
|
1294 @@number:
|
pascal@19825
|
1295 xor ax,ax
|
pascal@20146
|
1296 cwd
|
pascal@19825
|
1297 @@digit:
|
pascal@19825
|
1298 shl al,cl
|
pascal@19825
|
1299 shl ax,cl
|
pascal@19825
|
1300 lodsb
|
pascal@19825
|
1301 sub al,30h
|
pascal@19825
|
1302 cmp al,9
|
pascal@19825
|
1303 jbe @@digit
|
pascal@20146
|
1304 mov dl,bh
|
pascal@20146
|
1305 mov bh,bl
|
pascal@20146
|
1306 mov bl,ah
|
pascal@20146
|
1307 dec ch
|
pascal@20146
|
1308 jnz @@number
|
pascal@20146
|
1309 xchg ax,bx
|
pascal@20146
|
1310 pop si
|
pascal@19825
|
1311 kver2ulret:
|
pascal@19825
|
1312 ret
|
pascal@19825
|
1313
|
pascal@20528
|
1314 endp @kver2ul$qpzc
|
pascal@19825
|
1315
|
pascal@20528
|
1316 endif
|
pascal@19825
|
1317
|
pascal@19825
|
1318 ;***************************************************************
|
pascal@19825
|
1319 ;void try_default_args();
|
pascal@20538
|
1320 ;_fastcall void set_cmdline(const char *filename);
|
pascal@19825
|
1321 ;***************************************************************
|
pascal@20528
|
1322 ifdef EXTRA
|
pascal@20528
|
1323
|
pascal@19825
|
1324 global _try_default_args:near
|
pascal@19825
|
1325 proc _try_default_args near
|
pascal@19825
|
1326
|
pascal@19825
|
1327 mov bx,offset tazboot_cmd
|
pascal@19825
|
1328 call open
|
pascal@19825
|
1329 jc kver2ulret
|
pascal@19825
|
1330 mov cx,4096
|
pascal@19825
|
1331 mov di,[_heap_top]
|
pascal@19825
|
1332 extrn read_cmdline:near
|
pascal@19825
|
1333 jmp near read_cmdline ; read_cmdline(ax,di,cx)
|
pascal@19825
|
1334
|
pascal@19825
|
1335 endp _try_default_args
|
pascal@19825
|
1336
|
pascal@20528
|
1337 endif
|
pascal@19825
|
1338
|
pascal@19515
|
1339 ends _TEXT
|
pascal@19515
|
1340
|
pascal@19515
|
1341 end
|
pascal@19515
|
1342
|
pascal@19515
|
1343 ;###### END OF FILE ############################################
|
pascal@19825
|
1344
|