rev |
line source |
pascal@19515
|
1 ;***************************************************************
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pascal@19515
|
2 ;****** This file is distributed under GPL
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pascal@19515
|
3 ;***************************************************************
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pascal@19515
|
4 ideal
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pascal@19515
|
5 %crefref
|
pascal@19515
|
6 %noincl
|
pascal@19515
|
7 %nomacs
|
pascal@19636
|
8 ifdef NO386
|
pascal@19636
|
9 p8086
|
pascal@19636
|
10 else
|
pascal@19515
|
11 p386
|
pascal@19636
|
12 endif
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pascal@19515
|
13
|
pascal@19515
|
14 group DGROUP _TEXT,_DATA,_BSS
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pascal@19515
|
15 assume cs:DGROUP,ds:DGROUP
|
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@20630
|
51 ;_fastcall void strcpy(bx:const char* a, ax:const char* b);
|
pascal@20630
|
52 ;_fastcall void strcat(bx:const char* a, ax:const char* b);
|
pascal@20630
|
53 ;_fastcall void strcatb(bx:const char* a, ax: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@20630
|
70 xchg ax,bx ; b
|
pascal@20630
|
71 xchg ax,si ; a
|
pascal@19826
|
72 ifdef EXTRA
|
pascal@20142
|
73 jcxz @@nocat
|
pascal@19826
|
74 endif
|
pascal@19538
|
75 @@catlp:
|
pascal@20630
|
76 lodsb ; a=si
|
pascal@20527
|
77 or al,al
|
pascal@19538
|
78 jne @@catlp
|
pascal@19538
|
79 dec si
|
pascal@19826
|
80 ifdef EXTRA
|
pascal@20630
|
81 cmp bx,si
|
pascal@20630
|
82 adc al,cl ; set S when bx != 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$qpxzct1
|
pascal@19538
|
102
|
pascal@19538
|
103
|
pascal@20146
|
104 ifdef EXTRA
|
pascal@20146
|
105 p8086
|
pascal@20146
|
106 ;***************************************************************
|
pascal@20630
|
107 ;_fastcall char strstr(bx:const char* a, ax:const char* b);
|
pascal@20146
|
108 ;***************************************************************
|
pascal@20528
|
109 global @strstr$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@20630
|
135 ;_fastcall int strcmp(bx:const char* a, ax: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@20630
|
148 or al,[bx]
|
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$qpxzct1
|
pascal@20146
|
156 endif
|
pascal@20146
|
157
|
pascal@20146
|
158
|
pascal@19538
|
159 ;***************************************************************
|
pascal@20630
|
160 ;_fastcall void puts(bx:const char* s):
|
pascal@19515
|
161 ;***************************************************************
|
pascal@20528
|
162 global @puts$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
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pascal@19515
|
181
|
pascal@19515
|
182
|
pascal@19538
|
183
|
pascal@19538
|
184 ;***************************************************************
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pascal@20630
|
185 ;_fastcall int open(bx:const char* name, int flags=O_RDONLY);
|
pascal@19515
|
186 ;***************************************************************
|
pascal@20538
|
187 global openargs:near ; openargs(bx)
|
pascal@20538
|
188 openargs:
|
pascal@20538
|
189 cmp [byte bx],'@'
|
pascal@20538
|
190 stc
|
pascal@20538
|
191 jne fail
|
pascal@20538
|
192 inc bx
|
pascal@20538
|
193
|
pascal@20528
|
194 global @open$qpxzc:near
|
pascal@20528
|
195 proc @open$qpxzc near
|
pascal@19515
|
196
|
pascal@19546
|
197 global open:near ; open(bx)
|
pascal@19515
|
198 open:
|
pascal@20630
|
199 ifdef LONG_FILENAME
|
pascal@20630
|
200 mov ax,716Ch
|
pascal@20632
|
201 push bx di si
|
pascal@20630
|
202 mov si,bx
|
pascal@20630
|
203 xor bx,bx ; R/O
|
pascal@20630
|
204 xor cx,cx ; attributes
|
pascal@20632
|
205 xor di,di ; alias hint
|
pascal@20630
|
206 cwd ; action = open
|
pascal@20630
|
207 int 21h
|
pascal@20632
|
208 pop si di bx
|
pascal@20630
|
209 jnc doret
|
pascal@20630
|
210 endif
|
pascal@20538
|
211 mov ax,3d00h ; read-only+compatibility
|
pascal@20538
|
212 ;mov cl,0 ; attribute mask
|
pascal@19515
|
213 mov dx,bx
|
pascal@19515
|
214 dos:
|
pascal@19515
|
215 int 21h
|
pascal@19538
|
216 chkc:
|
pascal@19515
|
217 jnc doret
|
pascal@19515
|
218 fail:
|
pascal@19515
|
219 sbb ax,ax ; ax=-1 CF
|
pascal@19515
|
220 cwd
|
pascal@19515
|
221 doret:
|
pascal@19515
|
222 ifndef NO386
|
pascal@19538
|
223 push dx ; see next_chunk:lseek
|
pascal@19538
|
224 push ax
|
pascal@19538
|
225 pop eax
|
pascal@19515
|
226 endif
|
pascal@19515
|
227 ret
|
pascal@19515
|
228
|
pascal@20528
|
229 endp @open$qpxzc
|
pascal@19515
|
230
|
pascal@19515
|
231
|
pascal@19515
|
232 ;***************************************************************
|
pascal@20632
|
233 ;_fastcall int fileexist(bx:const char* name);
|
pascal@20632
|
234 ;***************************************************************
|
pascal@20632
|
235 global @fileexist$qpxzc:near
|
pascal@20632
|
236 @fileexist$qpxzc:
|
pascal@20632
|
237 call @open$qpxzc
|
pascal@20632
|
238 jc fail
|
pascal@20632
|
239
|
pascal@20632
|
240 ;***************************************************************
|
pascal@20630
|
241 ;_fastcall int close(ax:int fd);
|
pascal@19515
|
242 ;***************************************************************
|
pascal@20528
|
243 global @close$qi:near
|
pascal@20528
|
244 proc @close$qi near
|
pascal@19515
|
245
|
pascal@20540
|
246 global close:near ; close(ax)
|
pascal@19515
|
247 close:
|
pascal@20540
|
248 xchg ax,bx
|
pascal@19515
|
249 mov ah,3Eh
|
pascal@19515
|
250 or bx,bx
|
pascal@19515
|
251 jnz dos
|
pascal@19515
|
252 ret
|
pascal@19515
|
253
|
pascal@20528
|
254 endp @close$qi
|
pascal@19515
|
255
|
pascal@19515
|
256
|
pascal@19515
|
257 ;***************************************************************
|
pascal@20630
|
258 ;_fastcall int read(ax:int fd, bx:void* data, dx:int sz);
|
pascal@20630
|
259 ;_fastcall int write(ax:int fd, bx:const void* data, dx:int sz);
|
pascal@19515
|
260 ;***************************************************************
|
pascal@20528
|
261 global @read$qipvi:near
|
pascal@20528
|
262 proc @read$qipvi near
|
pascal@19515
|
263
|
pascal@20146
|
264 ifdef WRITE
|
pascal@19580
|
265 stc
|
pascal@19634
|
266 db 0B0h ; mov al,im
|
pascal@20528
|
267 global @write$qipvi:near
|
pascal@20528
|
268 @write$qipvi:
|
pascal@19580
|
269 clc
|
pascal@20146
|
270 endif
|
pascal@20632
|
271 @read$dxbxax:
|
pascal@20538
|
272 xchg ax,bx ; fd
|
pascal@20538
|
273 xchg ax,dx ; data
|
pascal@20538
|
274 xchg ax,cx ; sz
|
pascal@20146
|
275 ifdef WRITE
|
pascal@19580
|
276 mov ah,40h
|
pascal@19580
|
277 sbb ah,0
|
pascal@20146
|
278 else
|
pascal@20528
|
279 global @read$cxdxbx:near
|
pascal@20528
|
280 @read$cxdxbx:
|
pascal@20146
|
281 mov ah,3Fh
|
pascal@20146
|
282 endif
|
pascal@19515
|
283 jcxz fail
|
pascal@19515
|
284 jmp dos
|
pascal@19515
|
285
|
pascal@20528
|
286 endp @read$qipvi
|
pascal@19515
|
287
|
pascal@19515
|
288 ;***************************************************************
|
pascal@20630
|
289 ;_fastcall long lseekcur(ax:int fd, dx:int whence);
|
pascal@19515
|
290 ;***************************************************************
|
pascal@19899
|
291
|
pascal@20548
|
292 global @lseekcur$qii:near ; fd=ax whence=dx
|
pascal@20542
|
293 proc @lseekcur$qii near
|
pascal@20542
|
294
|
pascal@20632
|
295 mov cl,1
|
pascal@20542
|
296 xchg ax,bx
|
pascal@20542
|
297 xchg ax,dx
|
pascal@20542
|
298 cwd
|
pascal@20542
|
299 xchg ax,dx
|
pascal@20542
|
300 xchg ax,cx
|
pascal@20542
|
301 jmp lseek
|
pascal@20542
|
302 rewind: ; rewind(ax)
|
pascal@20542
|
303 mov bl,0
|
pascal@20632
|
304 lseek0: ; lseek0(ax,bl=dir)
|
pascal@20542
|
305 xor dx,dx
|
pascal@19571
|
306 xor cx,cx
|
pascal@20632
|
307 lseekset:
|
pascal@20542
|
308 xchg ax,bx
|
pascal@20542
|
309 lseek:
|
pascal@20548
|
310 mov ah,42h ; bx=fd cx:dx=offset al=whence
|
pascal@19515
|
311 jmp dos
|
pascal@19515
|
312
|
pascal@20542
|
313 endp @lseekcur$qii
|
pascal@19825
|
314
|
pascal@20538
|
315 ifdef EXTRA
|
pascal@20538
|
316
|
pascal@20534
|
317 ;typedef unsigned dirsizetype;
|
pascal@20534
|
318 struc isostate ; struct isostate {
|
pascal@20534
|
319 fd dw ? ; 0 int fd;
|
pascal@20534
|
320 filemod dw ? ; 2 unsigned short filemod;
|
pascal@20534
|
321 fileofs dd ? ; 4 unsigned long fileofs;
|
pascal@20534
|
322 filesize dd ? ; 8 unsigned long filesize;
|
pascal@20534
|
323 filename dw ? ;12 char *filename;
|
pascal@20534
|
324 curdirsize dw ? ;14 dirsizetype curdirsize;
|
pascal@20534
|
325 dirsize dw ? ;16 dirsizetype dirsize;
|
pascal@20534
|
326 curdirofs dd ? ;18 unsigned long curdirofs;
|
pascal@20534
|
327 dirofs dd ? ;22 unsigned long dirofs;
|
pascal@20534
|
328 curpos dw ? ;26 unsigned curpos;
|
pascal@20534
|
329 buffer db 2560 dup(?) ;28 char buffer[2048+512];
|
pascal@20534
|
330 ends ; } isostate;
|
pascal@19825
|
331 ;***************************************************************
|
pascal@20630
|
332 ;_fastcall long isolseek(bx:const unsigned long *offset);
|
pascal@20632
|
333 ;_fastcall long lseekset2(ax:int fd, bx:unsigned long* whence);
|
pascal@19825
|
334 ;***************************************************************
|
pascal@20528
|
335 global @isolseek$qpxul:near
|
pascal@20528
|
336 proc @isolseek$qpxul near
|
pascal@19825
|
337
|
pascal@20534
|
338 isolseek:
|
pascal@20632
|
339 extrn _isostate:isostate
|
pascal@20632
|
340 mov ax,[_isostate.fd]
|
pascal@20632
|
341 global @lseekset2$qipul
|
pascal@20632
|
342 @lseekset2$qipul:
|
pascal@19825
|
343 mov dx,[bx]
|
pascal@19825
|
344 mov cx,[bx+2]
|
pascal@20632
|
345 mov bl,0
|
pascal@20538
|
346 jmp lseekset
|
pascal@20534
|
347
|
pascal@20538
|
348 endp @isolseek$qpxul
|
pascal@20534
|
349
|
pascal@20534
|
350 ;***************************************************************
|
pascal@20630
|
351 ;_fastcall int isoreadsector(bx:const unsigned long *offset);
|
pascal@20534
|
352 ;***************************************************************
|
pascal@20534
|
353 global @isoreadsector$qpxul:near
|
pascal@20534
|
354 proc @isoreadsector$qpxul near
|
pascal@20534
|
355
|
pascal@20534
|
356 call isolseek
|
pascal@20632
|
357 jc doret
|
pascal@20632
|
358 mov dx,2560
|
pascal@20632
|
359 mov bx,offset _isostate.buffer
|
pascal@20632
|
360 mov ax,[_isostate.fd]
|
pascal@20632
|
361 jmp @read$dxbxax ; read(fd,buffer,2560)
|
pascal@20534
|
362
|
pascal@20534
|
363 endp @isoreadsector$qpxul
|
pascal@20534
|
364
|
pascal@19825
|
365 endif
|
pascal@19515
|
366
|
pascal@19515
|
367
|
pascal@19515
|
368 ;***************************************************************
|
pascal@20630
|
369 ;_fastcall int strhead(bx:const char* a, ax:const char* b);
|
pascal@19515
|
370 ;***************************************************************
|
pascal@20528
|
371 global @strhead$qpxzct1:near
|
pascal@20528
|
372 proc @strhead$qpxzct1 near
|
pascal@19515
|
373
|
pascal@19515
|
374 @@loop:
|
pascal@19634
|
375 xchg ax,bx
|
pascal@19515
|
376 mov cl,[bx] ; cl = *b++
|
pascal@19515
|
377 inc bx
|
pascal@19515
|
378 or cl,cl ; clear C
|
pascal@19515
|
379 jz fail ; return 0
|
pascal@19515
|
380 xchg ax,bx
|
pascal@19515
|
381 xor cl,[bx] ; cl -= *a++
|
pascal@19634
|
382 inc bx
|
pascal@19515
|
383 and cl,0dfh ; case insensitive
|
pascal@19634
|
384 jz @@loop
|
pascal@19634
|
385 ret ; return b (is not 0)
|
pascal@19515
|
386
|
pascal@20528
|
387 endp @strhead$qpxzct1
|
pascal@19515
|
388
|
pascal@19515
|
389
|
pascal@19515
|
390 ;***************************************************************
|
pascal@20630
|
391 ;_fastcall char* malloc_or_die(ax:unsigned size);
|
pascal@19515
|
392 ;***************************************************************
|
pascal@20528
|
393 global @malloc_or_die$qui:near
|
pascal@20528
|
394 proc @malloc_or_die$qui near
|
pascal@19515
|
395
|
pascal@20540
|
396 xchg ax,cx ; size
|
pascal@19515
|
397 global malloc_or_die:near ; malloc_or_die(cx)
|
pascal@19515
|
398 malloc_or_die:
|
pascal@20510
|
399 mov ax,[_heap_top] ; return value
|
pascal@20510
|
400 mov bx,sp
|
pascal@20510
|
401 add bh,-14h ; MIN_STACK=_1k+PAGE_SIZE
|
pascal@20510
|
402 sub bx,ax ; can't overflow
|
pascal@20510
|
403 cmp bx,cx
|
pascal@20456
|
404 mov bx,offset msg_malloc
|
pascal@20510
|
405 jb die
|
pascal@20510
|
406 add [_heap_top],cx ; _BEG has zero'd heap
|
pascal@19515
|
407 ret
|
pascal@19515
|
408
|
pascal@20528
|
409 endp @malloc_or_die$qui
|
pascal@19515
|
410
|
pascal@19515
|
411
|
pascal@19515
|
412 ;***************************************************************
|
pascal@20630
|
413 ;_fastcall int die(bx:const char* msg);
|
pascal@19538
|
414 ;int exit();
|
pascal@19515
|
415 ;int abort();
|
pascal@19515
|
416 ;***************************************************************
|
pascal@20528
|
417 global @die$qpxzc:near
|
pascal@20528
|
418 proc @die$qpxzc near
|
pascal@20528
|
419 @die$qpxzc:
|
pascal@19515
|
420 global die:near ; die(bx)
|
pascal@19515
|
421 die:
|
pascal@19515
|
422 call puts
|
pascal@20486
|
423 ; global _exit:near
|
pascal@19538
|
424 _exit:
|
pascal@19515
|
425 mov al,[_no_exit]
|
pascal@20527
|
426 or al,al
|
pascal@19515
|
427 jne @@hang
|
pascal@19515
|
428 extrn exit:near
|
pascal@19515
|
429 inc ax
|
pascal@19515
|
430 jmp near exit
|
pascal@19515
|
431 @@hang:
|
pascal@19515
|
432 mov bx, offset msg_hang
|
pascal@19515
|
433 call puts
|
pascal@20486
|
434 ; global _abort:near
|
pascal@19515
|
435 _abort:
|
pascal@19515
|
436 cli
|
pascal@19515
|
437 @@stop:
|
pascal@19515
|
438 hlt
|
pascal@19515
|
439 jmp @@stop
|
pascal@19515
|
440
|
pascal@20528
|
441 endp @die$qpxzc
|
pascal@19515
|
442
|
pascal@19546
|
443 struc image_himem ;struct image_himem {
|
pascal@19546
|
444 fd dw ? ; 0 int fd;
|
pascal@19546
|
445 fallback dd ? ; 2 u32 fallback;
|
pascal@19546
|
446 size dd ? ; 6 u32 size;
|
pascal@19546
|
447 remaining dd ? ;10 u32 remaining;
|
pascal@19546
|
448 buf dd ? ;14 u32 buf;
|
pascal@19546
|
449 bufv dw ? ;18 u32 *bufv;
|
pascal@19546
|
450 errmsg dw ? ;20 char *errmsg;
|
pascal@19546
|
451 chunk_size dd ? ;22 u32 chunk_size;
|
pascal@19546
|
452 next_chunk dw ? ;26 void (*next_chunk)(struct image_himem *);
|
pascal@19546
|
453 state dw ? ;28 u16 state;
|
pascal@19546
|
454 fd2close dw ? ;30 u16 fd2close;
|
pascal@19546
|
455 ends ;};
|
pascal@19515
|
456
|
pascal@19636
|
457 ;***************************************************************
|
pascal@20630
|
458 ;static long next_chunk(struct image_himem *di);
|
pascal@19636
|
459 ;***************************************************************
|
pascal@19636
|
460 proc next_chunk near
|
pascal@19636
|
461
|
pascal@19636
|
462 push si
|
pascal@20540
|
463 mov ax,[(image_himem di).fd]
|
pascal@19636
|
464 call close
|
pascal@19636
|
465 ifndef NO386
|
pascal@19636
|
466 xor eax,eax
|
pascal@19636
|
467 else
|
pascal@19636
|
468 xor ax,ax
|
pascal@20485
|
469 cwd
|
pascal@19636
|
470 endif
|
pascal@19636
|
471 mov [(image_himem di).fd],ax
|
pascal@19636
|
472 mov bx,[(image_himem di).state]
|
pascal@19636
|
473 cmp al,[bx] ; ""
|
pascal@19636
|
474 jz @@end
|
pascal@19636
|
475 mov si,bx
|
pascal@19636
|
476 @@scan:
|
pascal@19636
|
477 lodsb
|
pascal@19636
|
478 mov cx,si
|
pascal@19636
|
479 cmp al,','
|
pascal@19636
|
480 jz @@eos
|
pascal@20527
|
481 or al,al
|
pascal@19636
|
482 jnz @@scan
|
pascal@19636
|
483 dec cx
|
pascal@19636
|
484 @@eos:
|
pascal@19636
|
485 mov [(image_himem di).state],cx
|
pascal@19636
|
486 dec si
|
pascal@19636
|
487 push [word si]
|
pascal@20485
|
488 mov [byte si],ah ; set temp eos
|
pascal@19636
|
489 call open
|
pascal@19636
|
490 pop [word si] ; restore string
|
pascal@19636
|
491 jc @@die
|
pascal@19636
|
492 mov [(image_himem di).fd],ax
|
pascal@19636
|
493 mov [(image_himem di).fd2close],ax
|
pascal@20542
|
494 mov bl,02h ; SEEK_END
|
pascal@19636
|
495 call lseek0
|
pascal@19636
|
496 @@die:
|
pascal@19636
|
497 mov bx,[(image_himem di).errmsg]
|
pascal@19636
|
498 jc die
|
pascal@19636
|
499 ifndef NO386
|
pascal@19636
|
500 push eax
|
pascal@20548
|
501 mov ax,[(image_himem di).fd]
|
pascal@19636
|
502 call rewind
|
pascal@19636
|
503 pop eax
|
pascal@19636
|
504 @@end:
|
pascal@19636
|
505 mov [(image_himem di).chunk_size],eax
|
pascal@19636
|
506 else
|
pascal@19636
|
507 push ax
|
pascal@19636
|
508 push dx
|
pascal@20548
|
509 mov ax,[(image_himem di).fd]
|
pascal@19636
|
510 call rewind
|
pascal@19636
|
511 pop dx
|
pascal@19636
|
512 pop ax
|
pascal@19636
|
513 @@end:
|
pascal@19636
|
514 mov [word (image_himem di).chunk_size],ax
|
pascal@19636
|
515 mov [word ((image_himem di).chunk_size)+2],dx
|
pascal@19636
|
516 endif
|
pascal@19636
|
517 pop si
|
pascal@19636
|
518 ret
|
pascal@19636
|
519
|
pascal@19636
|
520 endp next_chunk
|
pascal@19636
|
521
|
pascal@19636
|
522
|
pascal@19571
|
523 ifdef LARGE_IMAGES
|
pascal@19571
|
524 struc data_himem ;struct data_himem {
|
pascal@19571
|
525 first dd ? ; 0 u32 first;
|
pascal@19571
|
526 cacheidx dw ? ; 4 int cacheidx;
|
pascal@19571
|
527 pageidx dw ? ; 6 int pageidx;
|
pascal@19571
|
528 cache dd 1024 dup(?) ; 8 int cache;
|
pascal@19571
|
529 page dd 1024 dup(?) ;4104 int page;
|
pascal@19571
|
530 ends ;}; // size=8200
|
pascal@19571
|
531 endif
|
pascal@19571
|
532
|
pascal@19515
|
533 ;***************************************************************
|
pascal@20630
|
534 ;_fastcall u32* malloc_bufv_or_die(bx:struct image_himem *m);
|
pascal@19538
|
535 ;***************************************************************
|
pascal@20528
|
536 global @malloc_bufv_or_die$qp11image_himem:near
|
pascal@20528
|
537 proc @malloc_bufv_or_die$qp11image_himem near
|
pascal@19538
|
538
|
pascal@19636
|
539 p386
|
pascal@19538
|
540 push si
|
pascal@20538
|
541 mov si,bx
|
pascal@19571
|
542 ifdef LARGE_IMAGES
|
pascal@20527
|
543 movzx ecx,[word ((image_himem si).size) + 2]
|
pascal@19571
|
544 shr cx,4 ; pages index size = size >> 20
|
pascal@19571
|
545 add cx,8+4096+8
|
pascal@19571
|
546 call malloc_or_die
|
pascal@20527
|
547 mov cx,4096+4095 ; cnt = 1+(m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19571
|
548 add ecx,[(image_himem si).size]
|
pascal@19571
|
549 shr ecx,12
|
pascal@19571
|
550 mov [curdata],ax
|
pascal@19571
|
551 else
|
pascal@19546
|
552 mov ecx,[(image_himem si).size]
|
pascal@19538
|
553 dec ecx
|
pascal@19538
|
554 shr ecx,12
|
pascal@19538
|
555 inc cx ; cnt = (m->size+PAGE_MASK)/PAGE_SIZE;
|
pascal@19538
|
556 push cx
|
pascal@19538
|
557 inc cx ; cnt+1
|
pascal@19538
|
558 shl cx,2 ; bufv => vcpi => vm86
|
pascal@19538
|
559 ; our malloc zeroes allocated mem: bufv[cnt]=0;
|
pascal@19538
|
560 ; Allocate pages, storing addrs in addrbuf
|
pascal@19538
|
561 call malloc_or_die
|
pascal@19571
|
562 pop cx
|
pascal@19571
|
563 push ax
|
pascal@19571
|
564 endif
|
pascal@19546
|
565 mov [(image_himem si).bufv],ax
|
pascal@19571
|
566 xchg ax,si
|
pascal@19538
|
567 @@vcpi_alloc:
|
pascal@19538
|
568 xor edx,edx
|
pascal@19538
|
569 mov ax,0DE04h
|
pascal@19538
|
570 int 67h
|
pascal@19538
|
571 or ah,ah
|
pascal@19538
|
572 mov bx,offset vcpi_alloc_err
|
pascal@19571
|
573 jnz die
|
pascal@19571
|
574 ; for (i = cnt-1; i >= 0; i--)
|
pascal@19571
|
575 ifdef LARGE_IMAGES
|
pascal@19571
|
576 mov eax,ecx
|
pascal@19571
|
577 dec eax
|
pascal@19571
|
578 else
|
pascal@19571
|
579 mov ax,cx
|
pascal@19571
|
580 dec ax
|
pascal@19571
|
581 cwde
|
pascal@19571
|
582 endif
|
pascal@19571
|
583 shl eax,12 ; i*_4k
|
pascal@19571
|
584 ; if (edx < pm.fallback+i*_4k && edx >= pm.fallback) again
|
pascal@19899
|
585 extrn _imgs
|
pascal@19899
|
586 mov bx,offset _imgs+2
|
pascal@19571
|
587 push eax
|
pascal@19571
|
588 add eax,[bx-2+2]
|
pascal@19571
|
589 cmp eax,edx ; pm.fallback+i*_4k <= edx ?
|
pascal@19571
|
590 pop eax ; i*_4k
|
pascal@19571
|
591 jbe @@pmok
|
pascal@19571
|
592 cmp edx,[bx-2+2] ; edx >= pm.fallback ?
|
pascal@19571
|
593 jae @@vcpi_alloc
|
pascal@19571
|
594 @@pmok:
|
pascal@19571
|
595 ; if (edx >= initrd.fallback+i*_4k && edx < initrd.fallback+initrd.size) again
|
pascal@19899
|
596 extrn _imgs
|
pascal@19899
|
597 mov bx,offset _imgs+32+2
|
pascal@19571
|
598 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
599 cmp eax,edx ; initrd.fallback+i*_4k > edx ?
|
pascal@19571
|
600 ja @@initrdok
|
pascal@19571
|
601 mov eax,[bx-2+6] ; initrd.size
|
pascal@19571
|
602 add eax,[bx-2+2] ; +initrd.fallback
|
pascal@19571
|
603 cmp eax,edx ; initrd.fallback+initrd.size > edx ?
|
pascal@19571
|
604 @@jnc_vcpi_alloc:
|
pascal@19571
|
605 ja @@vcpi_alloc
|
pascal@19571
|
606 @@initrdok:
|
pascal@19571
|
607 ifdef LARGE_IMAGES
|
pascal@19571
|
608 cmp [(data_himem si).first],0
|
pascal@19571
|
609 jne @@notfirst
|
pascal@19571
|
610 mov [(data_himem si).first],edx
|
pascal@19571
|
611 @@notfirst:
|
pascal@19571
|
612 mov bx,[(data_himem si).cacheidx]
|
pascal@19571
|
613 cmp bh,4
|
pascal@19571
|
614 jae @@nextpage
|
pascal@19571
|
615 shl bx,2
|
pascal@19571
|
616 inc [(data_himem si).cacheidx]
|
pascal@19571
|
617 mov [(data_himem bx+si).cache],edx
|
pascal@19571
|
618 loopd @@vcpi_alloc
|
pascal@19571
|
619 mov [(data_himem bx+si).cache],ecx ; last is 0
|
pascal@19571
|
620 @@nextpage:
|
pascal@19571
|
621 and [(data_himem si).cacheidx],0
|
pascal@19571
|
622 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
623 mov [(data_himem bx+si).page],edx
|
pascal@19571
|
624 add [(data_himem si).pageidx],4
|
pascal@19571
|
625 push cx
|
pascal@19571
|
626 lea cx,[(data_himem si).cache]
|
pascal@19571
|
627 ifdef NO386
|
pascal@19571
|
628 push edx
|
pascal@19571
|
629 pop dx
|
pascal@19571
|
630 pop ax
|
pascal@19571
|
631 endif
|
pascal@19571
|
632 call storepage ; storepage(edx,cx)
|
pascal@19571
|
633 pop cx
|
pascal@19571
|
634 or ecx,ecx ; clear C
|
pascal@19571
|
635 jnz @@jnc_vcpi_alloc
|
pascal@19571
|
636 mov [dword (data_himem si).cacheidx],ecx
|
pascal@19571
|
637 xchg ax,si
|
pascal@19571
|
638 else
|
pascal@19571
|
639 mov [si],edx
|
pascal@19571
|
640 lodsd ; si=+4
|
pascal@19538
|
641 loop @@vcpi_alloc
|
pascal@19538
|
642 pop ax
|
pascal@19571
|
643 endif
|
pascal@19538
|
644 pop si
|
pascal@19538
|
645 ret
|
pascal@19636
|
646 ifdef NO386
|
pascal@19636
|
647 p8086
|
pascal@19636
|
648 endif
|
pascal@19538
|
649
|
pascal@20528
|
650 endp @malloc_bufv_or_die$qp11image_himem
|
pascal@19538
|
651
|
pascal@19538
|
652
|
pascal@19538
|
653 ;***************************************************************
|
pascal@20630
|
654 ;_fastcall void memcpy_image(bx:struct image_himem *m);
|
pascal@19515
|
655 ;***************************************************************
|
pascal@20528
|
656 global @memcpy_image$qp11image_himem:near
|
pascal@20528
|
657 proc @memcpy_image$qp11image_himem near
|
pascal@19515
|
658
|
pascal@19571
|
659 ifndef NO386
|
pascal@19571
|
660 mov edx,[(image_himem bx).fallback]
|
pascal@19571
|
661 mov eax,[(image_himem bx).buf]
|
pascal@19571
|
662 cmp eax,edx ; if (m->fallback != m->buf)
|
pascal@19571
|
663 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
664 ifdef LARGE_IMAGES
|
pascal@19571
|
665 mov ecx,[(image_himem bx).size]
|
pascal@20146
|
666 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
|
pascal@19571
|
667 push ecx
|
pascal@19571
|
668 else
|
pascal@19571
|
669 push [(image_himem bx).size]
|
pascal@19571
|
670 endif
|
pascal@19571
|
671 push eax
|
pascal@19571
|
672 push 0
|
pascal@19571
|
673 call_memcpy32:
|
pascal@19571
|
674 push edx
|
pascal@19571
|
675 else
|
pascal@19571
|
676 mov ax,[word ((image_himem bx).fallback)]
|
pascal@19571
|
677 mov dx,[word ((image_himem bx).fallback)+2]
|
pascal@19571
|
678 mov cx,[word ((image_himem bx).buf)]
|
pascal@19571
|
679 cmp ax,cx ; if (m->fallback != m->buf)
|
pascal@19571
|
680 jnz @@do
|
pascal@19571
|
681 cmp dx,[word ((image_himem bx).buf)+2]
|
pascal@19571
|
682 jz @@skip ; memcpy32(m->fallback,0,m->buf,m->size)
|
pascal@19571
|
683 @@do:
|
pascal@19571
|
684 push [word ((image_himem bx).size)+2]
|
pascal@19571
|
685 push [word ((image_himem bx).size)]
|
pascal@19571
|
686 push [word ((image_himem bx).buf)+2]
|
pascal@19571
|
687 push cx
|
pascal@19571
|
688 xor cx,cx
|
pascal@19571
|
689 push cx
|
pascal@19571
|
690 call_memcpy32:
|
pascal@19571
|
691 push dx
|
pascal@19571
|
692 push ax
|
pascal@19571
|
693 ifdef LARGE_IMAGES
|
pascal@19571
|
694 jmp @@memcpy
|
pascal@20146
|
695 memcpy_imagez: ; memcpy_imagez(edx,eax,ecx)
|
pascal@19636
|
696 p386
|
pascal@19571
|
697 push ecx
|
pascal@19571
|
698 push eax
|
pascal@19571
|
699 push 0
|
pascal@19571
|
700 push edx
|
pascal@19636
|
701 ifdef NO386
|
pascal@19636
|
702 p8086
|
pascal@19636
|
703 endif
|
pascal@19571
|
704 endif
|
pascal@19571
|
705 endif
|
pascal@19571
|
706 @@memcpy:
|
pascal@20528
|
707 extrn memcpy32:near
|
pascal@20528
|
708 call near memcpy32
|
pascal@19571
|
709 @@skip:
|
pascal@19571
|
710 ret
|
pascal@19571
|
711
|
pascal@20528
|
712 endp @memcpy_image$qp11image_himem
|
pascal@19571
|
713
|
pascal@19571
|
714 ;***************************************************************
|
pascal@20630
|
715 ;_fastcall void storepage(bx:u32 *dst);
|
pascal@19571
|
716 ;***************************************************************
|
pascal@20538
|
717 global @storepage$qpul:near
|
pascal@20538
|
718 proc @storepage$qpul near
|
pascal@19571
|
719
|
pascal@19571
|
720 ifndef NO386
|
pascal@19571
|
721 mov edx,[bx]
|
pascal@19571
|
722 else
|
pascal@19571
|
723 mov ax,[bx]
|
pascal@19571
|
724 mov dx,[bx+2]
|
pascal@19571
|
725 endif
|
pascal@20538
|
726 mov cx,offset _xfer_buf
|
pascal@20146
|
727 storepage: ; storepage(edx,cx)
|
pascal@19571
|
728 ifndef NO386
|
pascal@19571
|
729 push 0
|
pascal@19571
|
730 push 4096
|
pascal@19571
|
731 push 0
|
pascal@19571
|
732 else
|
pascal@19571
|
733 xor bx,bx
|
pascal@19571
|
734 push bx
|
pascal@19571
|
735 mov bh,4096/256
|
pascal@19571
|
736 push bx
|
pascal@19571
|
737 xor bx,bx
|
pascal@19571
|
738 push bx
|
pascal@19571
|
739 endif
|
pascal@19571
|
740 push cx
|
pascal@19571
|
741 push ds
|
pascal@19571
|
742 jmp call_memcpy32
|
pascal@19571
|
743
|
pascal@20538
|
744 endp @storepage$qpul
|
pascal@19571
|
745
|
pascal@19571
|
746
|
pascal@19571
|
747 ifdef LARGE_IMAGES
|
pascal@19636
|
748 p386
|
pascal@19571
|
749 ;***************************************************************
|
pascal@20630
|
750 ;_fastcall void reset_bufv(bx:u32 *p);
|
pascal@19571
|
751 ;***************************************************************
|
pascal@20528
|
752 global @reset_bufv$qpul:near
|
pascal@20528
|
753 proc @reset_bufv$qpul near
|
pascal@19571
|
754
|
pascal@20524
|
755 mov [curdata],bx
|
pascal@19571
|
756 and [dword (data_himem bx).cacheidx],0
|
pascal@19571
|
757 ret
|
pascal@19571
|
758
|
pascal@20528
|
759 endp @reset_bufv$qpul
|
pascal@19571
|
760
|
pascal@19571
|
761 ;***************************************************************
|
pascal@19571
|
762 ;u32* prev_bufv();
|
pascal@19571
|
763 ;u32* prev_bufv();
|
pascal@19571
|
764 ;***************************************************************
|
pascal@19571
|
765 global _prev_bufv:near
|
pascal@19571
|
766 global _next_bufv:near
|
pascal@19571
|
767 proc _prev_bufv near
|
pascal@19571
|
768
|
pascal@19571
|
769 stc
|
pascal@19571
|
770 db 73h ; jnc
|
pascal@19571
|
771 _next_bufv:
|
pascal@19571
|
772 clc
|
pascal@20528
|
773 push si
|
pascal@20528
|
774 mov si,[curdata]
|
pascal@19571
|
775 sbb ax,ax
|
pascal@20527
|
776 cmc
|
pascal@20527
|
777 adc ax,[(data_himem si).cacheidx] ; -1/+1
|
pascal@19571
|
778 xor ecx,ecx
|
pascal@19571
|
779 test ax,0fc00h
|
pascal@19571
|
780 jz @@gotpage
|
pascal@19571
|
781 push ax ; FFFF / 0400
|
pascal@19571
|
782 sar ax,8 ; FFFC / 0004
|
pascal@19571
|
783 and al,0fch
|
pascal@19571
|
784 add [(data_himem si).pageidx],ax
|
pascal@19571
|
785 mov bx,[(data_himem si).pageidx]
|
pascal@19571
|
786 lea bx,[(data_himem bx+si).page]
|
pascal@19571
|
787 mov edx,ds
|
pascal@19571
|
788 shl edx,4
|
pascal@19571
|
789 lea cx,[(data_himem si).cache]
|
pascal@19571
|
790 add edx,ecx
|
pascal@19571
|
791 mov eax,[bx]
|
pascal@19571
|
792 or eax,eax
|
pascal@19571
|
793 jnz @@pageok
|
pascal@19571
|
794 pop ax
|
pascal@19571
|
795 xchg ax,bx
|
pascal@19571
|
796 pop si
|
pascal@19571
|
797 ret
|
pascal@19571
|
798 @@pageok:
|
pascal@19571
|
799 mov cx,4096
|
pascal@19571
|
800 call memcpy_imagez ; get page
|
pascal@19571
|
801 pop ax ; FFFF / 0400
|
pascal@19571
|
802 cbw
|
pascal@19571
|
803 shr ax,6 ; 03FF / 0000
|
pascal@19571
|
804 @@gotpage:
|
pascal@19571
|
805 mov [(data_himem si).cacheidx],ax
|
pascal@19571
|
806 shl ax,2
|
pascal@19571
|
807 xchg ax,bx
|
pascal@19571
|
808 lea ax,[(data_himem bx+si).cache]
|
pascal@19571
|
809 or bx,[(data_himem si).pageidx] ; !pageidx && !cacheidx
|
pascal@19571
|
810 jnz @@notfirst2
|
pascal@19571
|
811 xchg ax,si ; &first
|
pascal@19571
|
812 @@notfirst2:
|
pascal@19571
|
813 pop si
|
pascal@19571
|
814 ret
|
pascal@19571
|
815
|
pascal@19571
|
816 endp _prev_bufv
|
pascal@19571
|
817 endif
|
pascal@19571
|
818
|
pascal@20146
|
819 ifdef NO386
|
pascal@20146
|
820 p8086
|
pascal@20146
|
821 endif
|
pascal@19571
|
822
|
pascal@19571
|
823 ;***************************************************************
|
pascal@20630
|
824 ;_fastcall void open_image(bx:const char *name, ax:struct image_himem *m);
|
pascal@19515
|
825 ;***************************************************************
|
pascal@20528
|
826 global @open_image$qpxzcp11image_himem:near
|
pascal@20528
|
827 proc @open_image$qpxzcp11image_himem near
|
pascal@19515
|
828
|
pascal@20484
|
829 push di
|
pascal@20485
|
830 xchg ax,di
|
pascal@20538
|
831 ifdef EXTRA
|
pascal@20538
|
832 cmp [(image_himem di).fd],0 ; iso image/kernel ?
|
pascal@20538
|
833 jnz @@alreadydone
|
pascal@20538
|
834 endif
|
pascal@20484
|
835 mov [(image_himem di).state],bx
|
pascal@20484
|
836 push bx
|
pascal@20534
|
837 ifdef EXTRA
|
pascal@20538
|
838 cmp [(image_himem di).next_chunk],0 ; iso image/initrd ?
|
pascal@20538
|
839 jnz @@next
|
pascal@20534
|
840 endif
|
pascal@20534
|
841 mov [(image_himem di).next_chunk],offset next_chunk
|
pascal@19515
|
842 @@next:
|
pascal@19546
|
843 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@19515
|
844 ifndef NO386
|
pascal@19515
|
845 add eax,3
|
pascal@19515
|
846 and al,0FCh
|
pascal@19546
|
847 add [(image_himem di).size],eax ; m->size += m->chunk_size
|
pascal@19515
|
848 or eax,eax
|
pascal@19515
|
849 else
|
pascal@19515
|
850 add ax,3
|
pascal@19515
|
851 adc dx,0
|
pascal@19515
|
852 and al,0FCh
|
pascal@19546
|
853 add [word (image_himem di).size],ax ; m->size += m->chunk_size
|
pascal@19546
|
854 adc [word ((image_himem di).size)+2],dx
|
pascal@20520
|
855 or ax,dx
|
pascal@19515
|
856 endif
|
pascal@20520
|
857 jnz @@next
|
pascal@20484
|
858 pop [(image_himem di).state]
|
pascal@19546
|
859 call [(image_himem di).next_chunk] ; m->next_chunk()
|
pascal@20538
|
860 @@alreadydone:
|
pascal@20484
|
861 pop di
|
pascal@19515
|
862 ret
|
pascal@19515
|
863
|
pascal@20528
|
864 endp @open_image$qpxzcp11image_himem
|
pascal@19515
|
865
|
pascal@19515
|
866
|
pascal@19515
|
867 ;***************************************************************
|
pascal@20630
|
868 ;_fastcall int read_image(bx:struct image_himem *m);
|
pascal@19515
|
869 ;***************************************************************
|
pascal@20538
|
870 global @read_image$qp11image_himem:near
|
pascal@20538
|
871 proc @read_image$qp11image_himem near
|
pascal@19515
|
872
|
pascal@20539
|
873 push si di
|
pascal@20538
|
874 mov di,bx
|
pascal@20539
|
875 mov si,4096
|
pascal@20539
|
876 push si ; original size
|
pascal@19515
|
877 @@loop:
|
pascal@19538
|
878 ifndef NO386
|
pascal@20539
|
879 movzx ecx,si
|
pascal@19546
|
880 mov eax,[(image_himem di).chunk_size]
|
pascal@19538
|
881 cmp ecx,eax
|
pascal@19538
|
882 jb @@szok
|
pascal@19538
|
883 else
|
pascal@20539
|
884 mov cx,si
|
pascal@19546
|
885 mov ax,[word (image_himem di).chunk_size]
|
pascal@19538
|
886 cmp cx,ax
|
pascal@19515
|
887 jb @@szok
|
pascal@19546
|
888 cmp [word ((image_himem di).chunk_size)+2],0 ; hi m->chunk_size
|
pascal@19515
|
889 jne @@szok
|
pascal@20484
|
890 endif
|
pascal@19515
|
891 xchg ax,cx
|
pascal@19515
|
892 @@szok:
|
pascal@19538
|
893 jcxz image_done
|
pascal@20539
|
894 mov dx,offset _xfer_buf
|
pascal@20538
|
895 mov bx,[di]
|
pascal@20528
|
896 call @read$cxdxbx
|
pascal@19538
|
897 jc image_done
|
pascal@19515
|
898 xor cx,cx
|
pascal@20539
|
899 cwd ; ax < 8000h
|
pascal@19538
|
900 ifndef NO386
|
pascal@19538
|
901 cwde ; ax < 8000h
|
pascal@19546
|
902 sub [(image_himem di).chunk_size],eax
|
pascal@20541
|
903 xchg eax,ebx
|
pascal@19538
|
904 else
|
pascal@19546
|
905 sub [word (image_himem di).chunk_size],ax
|
pascal@20539
|
906 xchg ax,bx
|
pascal@19546
|
907 sbb [word ((image_himem di).chunk_size)+2],dx
|
pascal@19538
|
908 jnz @@fill
|
pascal@19546
|
909 cmp [word (image_himem di).chunk_size],dx
|
pascal@19538
|
910 endif
|
pascal@19538
|
911 jnz @@fill
|
pascal@20539
|
912 dec cx
|
pascal@19515
|
913 @@fill:
|
pascal@20539
|
914 test bl,3
|
pascal@19515
|
915 je @@filled
|
pascal@20539
|
916 mov [bx+_xfer_buf],dh
|
pascal@20539
|
917 inc bx
|
pascal@19515
|
918 jmp @@fill
|
pascal@19515
|
919 @@filled:
|
pascal@19538
|
920 ifndef NO386
|
pascal@20541
|
921 sub [(image_himem di).remaining],ebx
|
pascal@19538
|
922 else
|
pascal@20539
|
923 sub [word (image_himem di).remaining],bx
|
pascal@19546
|
924 sbb [word ((image_himem di).remaining)+2],dx
|
pascal@19538
|
925 endif
|
pascal@20541
|
926 sub si,bx
|
pascal@19538
|
927 pushf
|
pascal@20539
|
928 and cx,[(image_himem di).next_chunk]
|
pascal@20484
|
929 jcxz @@same_chunk
|
pascal@20539
|
930 call cx
|
pascal@19538
|
931 @@same_chunk:
|
pascal@19538
|
932 popf
|
pascal@19538
|
933 jnz @@loop
|
pascal@20484
|
934 image_done:
|
pascal@20528
|
935 pop ax ; original size
|
pascal@20539
|
936 sub ax,si
|
pascal@20539
|
937 pop di si
|
pascal@20538
|
938 ret
|
pascal@19515
|
939
|
pascal@20538
|
940 endp @read_image$qp11image_himem
|
pascal@19515
|
941
|
pascal@19515
|
942
|
pascal@19515
|
943 ;***************************************************************
|
pascal@20528
|
944 ;pascal unsigned long strtol(const char *s);
|
pascal@19515
|
945 ;***************************************************************
|
pascal@20528
|
946 global @strtol$qpxzc:near
|
pascal@20528
|
947 proc @strtol$qpxzc near
|
pascal@19515
|
948
|
pascal@20538
|
949 pop ax
|
pascal@20538
|
950 pop bx ; s
|
pascal@19515
|
951 push ax
|
pascal@20528
|
952 ifndef NO386
|
pascal@19515
|
953 xor ebx,ebx
|
pascal@19515
|
954 push si
|
pascal@19634
|
955 jcxz @@end
|
pascal@19515
|
956 mov si,cx
|
pascal@19515
|
957 xor ecx,ecx
|
pascal@19515
|
958 xor eax,eax
|
pascal@19515
|
959 lodsb
|
pascal@19634
|
960 mov dx,ax
|
pascal@19634
|
961 or al,20h
|
pascal@19634
|
962 cmp al,'n' ; vga=normal
|
pascal@19538
|
963 je @@vga
|
pascal@19538
|
964 dec cx
|
pascal@19634
|
965 cmp al,'e' ; vga=extended
|
pascal@19538
|
966 je @@vga
|
pascal@19538
|
967 dec cx
|
pascal@19634
|
968 cmp al,'a' ; vga=ask
|
pascal@19538
|
969 jne @@notvga
|
pascal@19538
|
970 @@vga:
|
pascal@19538
|
971 dec cx
|
pascal@19538
|
972 xchg ax,cx
|
pascal@19538
|
973 cwd
|
pascal@19634
|
974 jmp @@popsiret
|
pascal@19538
|
975 @@notvga:
|
pascal@19538
|
976 mov cx,10 ; radix
|
pascal@19634
|
977 xchg ax,dx
|
pascal@19515
|
978 cmp al,'+'
|
pascal@19515
|
979 je @@radixskip
|
pascal@19515
|
980 cmp al,'-'
|
pascal@19515
|
981 clc
|
pascal@19515
|
982 jne @@radixkeep
|
pascal@19515
|
983 stc
|
pascal@19515
|
984 @@radixskip:
|
pascal@19515
|
985 lodsb
|
pascal@19515
|
986 @@radixkeep:
|
pascal@19515
|
987 pushf
|
pascal@19515
|
988 cmp al,'0'
|
pascal@19515
|
989 jne @@radixok
|
pascal@19515
|
990 mov cl,8
|
pascal@19515
|
991 lodsb
|
pascal@19634
|
992 or al,20h
|
pascal@19634
|
993 cmp al,'x'
|
pascal@19515
|
994 jne @@radixok
|
pascal@19515
|
995 mov cl,16
|
pascal@19515
|
996 @@strtollp:
|
pascal@19515
|
997 lodsb
|
pascal@19515
|
998 @@radixok:
|
pascal@19634
|
999 or al,20h
|
pascal@19515
|
1000 sub al,'0'
|
pascal@19515
|
1001 jb @@endstrtol
|
pascal@19515
|
1002 cmp al,9
|
pascal@19515
|
1003 jbe @@digitok
|
pascal@19515
|
1004 cmp al,'a'-'0'
|
pascal@19515
|
1005 jb @@endstrtol
|
pascal@19515
|
1006 sub al,'a'-'0'-10
|
pascal@19515
|
1007 @@digitok:
|
pascal@19515
|
1008 cmp al,cl
|
pascal@19515
|
1009 jae @@endstrtol
|
pascal@19515
|
1010 xchg eax,ebx
|
pascal@19515
|
1011 mul ecx
|
pascal@19515
|
1012 add eax,ebx
|
pascal@19515
|
1013 xchg eax,ebx
|
pascal@19515
|
1014 jmp @@strtollp
|
pascal@19515
|
1015 @@endstrtol:
|
pascal@19515
|
1016 mov cl,10
|
pascal@19515
|
1017 cmp al,'k'-'a'+10
|
pascal@19515
|
1018 je @@shift
|
pascal@19515
|
1019 mov cl,20
|
pascal@19515
|
1020 cmp al,'m'-'a'+10
|
pascal@19515
|
1021 je @@shift
|
pascal@19515
|
1022 mov cl,30
|
pascal@19515
|
1023 cmp al,'g'-'a'+10
|
pascal@19515
|
1024 jne @@noshift
|
pascal@19515
|
1025 @@shift:
|
pascal@19515
|
1026 shl ebx,cl
|
pascal@19515
|
1027 @@noshift:
|
pascal@19515
|
1028 popf
|
pascal@19515
|
1029 jnc @@end
|
pascal@19515
|
1030 neg ebx
|
pascal@19515
|
1031 @@end:
|
pascal@19515
|
1032 push ebx
|
pascal@19515
|
1033 pop ax
|
pascal@19515
|
1034 pop dx
|
pascal@19634
|
1035 @@popsiret:
|
pascal@19515
|
1036 pop si
|
pascal@19515
|
1037 else
|
pascal@19515
|
1038 push si
|
pascal@19515
|
1039 push di
|
pascal@19515
|
1040 xor ax,ax
|
pascal@19515
|
1041 cwd
|
pascal@19634
|
1042 jcxz @@goend
|
pascal@19515
|
1043 xchg ax,di
|
pascal@19515
|
1044 mov si,cx
|
pascal@19538
|
1045 lodsb
|
pascal@19634
|
1046 mov bx,ax
|
pascal@19634
|
1047 or al,20h
|
pascal@19538
|
1048 mov cx,-1
|
pascal@19634
|
1049 cmp al,'n' ; vga=normal
|
pascal@19538
|
1050 je @@vga
|
pascal@19538
|
1051 dec cx
|
pascal@19634
|
1052 cmp al,'e' ; vga=extended
|
pascal@19538
|
1053 je @@vga
|
pascal@19538
|
1054 dec cx
|
pascal@19634
|
1055 cmp al,'a' ; vga=ask
|
pascal@19538
|
1056 jne @@notvga
|
pascal@19538
|
1057 @@vga:
|
pascal@19538
|
1058 xchg ax,cx
|
pascal@19538
|
1059 @@goend:
|
pascal@19634
|
1060 jmp @@popdisiret
|
pascal@19538
|
1061 @@notvga:
|
pascal@19515
|
1062 mov cx,10 ; radix
|
pascal@19634
|
1063 xchg ax,bx
|
pascal@19515
|
1064 cmp al,'+'
|
pascal@19515
|
1065 je @@radixskip
|
pascal@19515
|
1066 cmp al,'-'
|
pascal@19515
|
1067 clc
|
pascal@19515
|
1068 jne @@radixkeep
|
pascal@19515
|
1069 stc
|
pascal@19515
|
1070 @@radixskip:
|
pascal@19515
|
1071 lodsb
|
pascal@19515
|
1072 @@radixkeep:
|
pascal@19515
|
1073 pushf
|
pascal@19515
|
1074 cmp al,'0'
|
pascal@19515
|
1075 jne @@radixok
|
pascal@19515
|
1076 mov cl,8
|
pascal@19515
|
1077 lodsb
|
pascal@20146
|
1078 or al,20h
|
pascal@19634
|
1079 cmp al,'x'
|
pascal@19515
|
1080 jne @@radixok
|
pascal@19515
|
1081 mov cl,16
|
pascal@19515
|
1082 @@strtollp:
|
pascal@19515
|
1083 lodsb
|
pascal@19515
|
1084 @@radixok:
|
pascal@19634
|
1085 or al,20h
|
pascal@19515
|
1086 sub al,'0'
|
pascal@19515
|
1087 jb @@endstrtol
|
pascal@19515
|
1088 cmp al,9
|
pascal@19515
|
1089 jbe @@digitok
|
pascal@19515
|
1090 cmp al,'a'-'0'
|
pascal@19515
|
1091 jb @@endstrtol
|
pascal@19515
|
1092 sub al,'a'-'0'-10
|
pascal@19515
|
1093 @@digitok:
|
pascal@19515
|
1094 cmp al,cl
|
pascal@19515
|
1095 jae @@endstrtol
|
pascal@19515
|
1096
|
pascal@19515
|
1097 push ax
|
pascal@19515
|
1098 push si
|
pascal@19515
|
1099 push dx
|
pascal@19515
|
1100 xchg ax,di
|
pascal@19515
|
1101 mul cx
|
pascal@19515
|
1102 xchg ax,di
|
pascal@19515
|
1103 xchg ax,dx
|
pascal@19515
|
1104 xchg ax,si
|
pascal@19515
|
1105 pop ax
|
pascal@19515
|
1106 mul cx
|
pascal@19515
|
1107 add ax,si
|
pascal@19515
|
1108 pop si
|
pascal@19515
|
1109 xchg ax,dx
|
pascal@19515
|
1110 pop ax
|
pascal@19515
|
1111 mov ah,0
|
pascal@19515
|
1112 add di,ax
|
pascal@19515
|
1113 adc dx,0
|
pascal@19515
|
1114
|
pascal@19515
|
1115 jmp @@strtollp
|
pascal@19515
|
1116 @@endstrtol:
|
pascal@19515
|
1117 mov cl,10
|
pascal@19515
|
1118 cmp al,'k'-'a'+10
|
pascal@19515
|
1119 je @@shift
|
pascal@19515
|
1120 mov cl,20
|
pascal@19515
|
1121 cmp al,'m'-'a'+10
|
pascal@19515
|
1122 je @@shift
|
pascal@19515
|
1123 mov cl,30
|
pascal@19515
|
1124 cmp al,'g'-'a'+10
|
pascal@19515
|
1125 jne @@noshift
|
pascal@19515
|
1126 @@shift:
|
pascal@19515
|
1127 rcl di,1
|
pascal@19515
|
1128 shl dx,1
|
pascal@19515
|
1129 loop @@shift
|
pascal@19515
|
1130 @@noshift:
|
pascal@19515
|
1131 popf
|
pascal@19515
|
1132 jnc @@end
|
pascal@19515
|
1133 not dx
|
pascal@19515
|
1134 neg di
|
pascal@19515
|
1135 jne @@end
|
pascal@19515
|
1136 inc dx
|
pascal@19515
|
1137 @@end:
|
pascal@19515
|
1138 xchg ax,di
|
pascal@19634
|
1139 @@popdisiret:
|
pascal@19515
|
1140 pop di
|
pascal@19515
|
1141 pop si
|
pascal@19515
|
1142 endif
|
pascal@20528
|
1143 strtol_ret:
|
pascal@19515
|
1144 ret
|
pascal@19515
|
1145
|
pascal@20528
|
1146 endp @strtol$qpxzc
|
pascal@19515
|
1147
|
pascal@19515
|
1148
|
pascal@19515
|
1149 ifdef NO386
|
pascal@19515
|
1150 ;***************************************************************
|
pascal@19515
|
1151 ;u16 topseg();
|
pascal@19515
|
1152 ;***************************************************************
|
pascal@19515
|
1153 global _topseg:near
|
pascal@19515
|
1154 proc _topseg near
|
pascal@19515
|
1155
|
pascal@19515
|
1156 int 12h
|
pascal@19515
|
1157 jnc @@max640k
|
pascal@19515
|
1158 mov ax,640 ; 9000
|
pascal@19515
|
1159 @@max640k:
|
pascal@19634
|
1160 dec ax
|
pascal@19515
|
1161 and al,0C0h
|
pascal@19515
|
1162 mov cl,6
|
pascal@19515
|
1163 shl ax,cl
|
pascal@19515
|
1164 ret
|
pascal@19515
|
1165
|
pascal@19515
|
1166 endp _topseg
|
pascal@19515
|
1167 endif
|
pascal@19515
|
1168
|
pascal@19825
|
1169 ifdef EXTRA
|
pascal@19825
|
1170 p8086
|
pascal@19825
|
1171 ;***************************************************************
|
pascal@19825
|
1172 ;char *progname(void)
|
pascal@19825
|
1173 ;***************************************************************
|
pascal@19825
|
1174 global _progname:near
|
pascal@19825
|
1175 proc _progname near
|
pascal@19825
|
1176
|
pascal@19825
|
1177 push si di es
|
pascal@19825
|
1178 mov ah,30h
|
pascal@19825
|
1179 int 21h
|
pascal@19875
|
1180 xor di,di
|
pascal@19825
|
1181 cmp al,3
|
pascal@19874
|
1182 mov ax,di
|
pascal@19825
|
1183 jb @@skip
|
pascal@19873
|
1184 ;mov es,[cs:2Ch]
|
pascal@19874
|
1185 mov es,[di+2Ch]
|
pascal@20146
|
1186 mov cx,sp ; big enough
|
pascal@19870
|
1187 @@loop:
|
pascal@19825
|
1188 repne
|
pascal@19825
|
1189 scasb
|
pascal@19825
|
1190 scasb
|
pascal@19870
|
1191 jne @@loop
|
pascal@19870
|
1192 inc di
|
pascal@19870
|
1193 inc di
|
pascal@19870
|
1194 mov si,di ; progname @es:di
|
pascal@19870
|
1195 repne
|
pascal@19870
|
1196 scasb
|
pascal@19870
|
1197 mov cx,di
|
pascal@19874
|
1198 sub cx,si ; progname len
|
pascal@19870
|
1199 call malloc_or_die ; keep cx
|
pascal@19870
|
1200 mov di,ax
|
pascal@19825
|
1201 push ds
|
pascal@19825
|
1202 push es
|
pascal@19825
|
1203 pop ds
|
pascal@19825
|
1204 pop es
|
pascal@19870
|
1205 rep
|
pascal@19870
|
1206 movsb
|
pascal@19870
|
1207 push es
|
pascal@19825
|
1208 pop ds
|
pascal@19825
|
1209 @@skip:
|
pascal@19825
|
1210 pop es di si
|
pascal@19825
|
1211 ret
|
pascal@19825
|
1212
|
pascal@19825
|
1213 endp _progname
|
pascal@19825
|
1214
|
pascal@19825
|
1215
|
pascal@19825
|
1216 ;***************************************************************
|
pascal@20630
|
1217 ;_fastcall void chdirname(bx:char *path)
|
pascal@19825
|
1218 ;***************************************************************
|
pascal@20528
|
1219 global @chdirname$qpzc:near
|
pascal@20528
|
1220 proc @chdirname$qpzc near
|
pascal@19825
|
1221
|
pascal@20146
|
1222 cmp [byte bx+1],3Ah ; ':'
|
pascal@19825
|
1223 jne @@nodisk
|
pascal@19875
|
1224 mov dl,20h
|
pascal@19875
|
1225 or dl,[bx]
|
pascal@19825
|
1226 sub dl,61h
|
pascal@19825
|
1227 mov ah,0Eh
|
pascal@19825
|
1228 int 21h
|
pascal@19825
|
1229 inc bx
|
pascal@19825
|
1230 inc bx
|
pascal@19825
|
1231 @@nodisk:
|
pascal@19825
|
1232 xor cx,cx
|
pascal@19825
|
1233 @@next:
|
pascal@19825
|
1234 mov al,[bx]
|
pascal@19825
|
1235 cmp al,5Ch
|
pascal@19825
|
1236 jne @@tsteos
|
pascal@19875
|
1237 mov dx,bx
|
pascal@19875
|
1238 inc cx
|
pascal@19825
|
1239 @@tsteos:
|
pascal@19825
|
1240 inc bx
|
pascal@19825
|
1241 or al,al
|
pascal@19825
|
1242 jnz @@next
|
pascal@19825
|
1243 jcxz @@end
|
pascal@19875
|
1244 mov bx,dx
|
pascal@19825
|
1245 push [word bx]
|
pascal@19825
|
1246 mov [bx],al
|
pascal@20630
|
1247 ifdef LONG_FILENAME
|
pascal@19875
|
1248 stc
|
pascal@20146
|
1249 mov ax,713Bh ; chdir long filename (ds:dx)
|
pascal@19875
|
1250 int 21h
|
pascal@20630
|
1251 jnc @@chdirdone
|
pascal@20630
|
1252 endif
|
pascal@20146
|
1253 mov ah,3Bh ; chdir(ds:dx)
|
pascal@19875
|
1254 int 21h
|
pascal@20510
|
1255 @@chdirdone:
|
pascal@19825
|
1256 pop [word bx]
|
pascal@19825
|
1257 @@end:
|
pascal@19825
|
1258 ret
|
pascal@19825
|
1259
|
pascal@20528
|
1260 endp @chdirname$qpzc
|
pascal@19825
|
1261
|
pascal@19825
|
1262
|
pascal@19825
|
1263 ;***************************************************************
|
pascal@20630
|
1264 ;_fastcall char *ultoa(axdx:unsigned long n);
|
pascal@19825
|
1265 ;***************************************************************
|
pascal@20528
|
1266 global @ultoa$qul:near
|
pascal@20528
|
1267 proc @ultoa$qul near
|
pascal@19825
|
1268
|
pascal@20538
|
1269 xchg ax,cx
|
pascal@20538
|
1270 xchg ax,dx ; AX:CX = n
|
pascal@19825
|
1271 push si
|
pascal@19825
|
1272 mov si,10
|
pascal@19825
|
1273 mov bx,offset ultoabuf+11
|
pascal@19825
|
1274 @@loop:
|
pascal@19825
|
1275 dec bx
|
pascal@19825
|
1276 xor dx,dx
|
pascal@19825
|
1277 div si ; DX:AX = 0000:hi(n)
|
pascal@19825
|
1278 xchg ax,cx ; CX = hi(n)/10
|
pascal@19825
|
1279 div si ; DX:AX = hi(n)%10:lo(n)
|
pascal@19825
|
1280 xchg ax,cx ; CX = lo(n/10)
|
pascal@20528
|
1281 ; AX = hi(n)/10 = hi(n/10)
|
pascal@20528
|
1282 mov [byte bx],'0'
|
pascal@20528
|
1283 add [bx],dl ; DL = n%10
|
pascal@20528
|
1284 mov dx,ax
|
pascal@20528
|
1285 or dx,cx
|
pascal@19825
|
1286 jnz @@loop
|
pascal@19825
|
1287 xchg ax,bx
|
pascal@19825
|
1288 pop si
|
pascal@19825
|
1289 ret
|
pascal@19825
|
1290
|
pascal@20528
|
1291 endp @ultoa$qul
|
pascal@19825
|
1292
|
pascal@19825
|
1293
|
pascal@19825
|
1294 ;***************************************************************
|
pascal@20630
|
1295 ;_fastcall unsigned long kver2ul(bx:char *kernel_version);
|
pascal@19825
|
1296 ;***************************************************************
|
pascal@20528
|
1297 global @kver2ul$qpzc:near
|
pascal@20528
|
1298 proc @kver2ul$qpzc near
|
pascal@19825
|
1299
|
pascal@20146
|
1300 push si
|
pascal@20538
|
1301 mov si,bx
|
pascal@20146
|
1302 xor bx,bx
|
pascal@20146
|
1303 mov cx,304h
|
pascal@19825
|
1304 @@number:
|
pascal@19825
|
1305 xor ax,ax
|
pascal@20146
|
1306 cwd
|
pascal@19825
|
1307 @@digit:
|
pascal@19825
|
1308 shl al,cl
|
pascal@19825
|
1309 shl ax,cl
|
pascal@19825
|
1310 lodsb
|
pascal@19825
|
1311 sub al,30h
|
pascal@19825
|
1312 cmp al,9
|
pascal@19825
|
1313 jbe @@digit
|
pascal@20146
|
1314 mov dl,bh
|
pascal@20146
|
1315 mov bh,bl
|
pascal@20146
|
1316 mov bl,ah
|
pascal@20146
|
1317 dec ch
|
pascal@20146
|
1318 jnz @@number
|
pascal@20146
|
1319 xchg ax,bx
|
pascal@20146
|
1320 pop si
|
pascal@19825
|
1321 kver2ulret:
|
pascal@19825
|
1322 ret
|
pascal@19825
|
1323
|
pascal@20528
|
1324 endp @kver2ul$qpzc
|
pascal@19825
|
1325
|
pascal@20528
|
1326 endif
|
pascal@19825
|
1327
|
pascal@19825
|
1328 ;***************************************************************
|
pascal@19825
|
1329 ;void try_default_args();
|
pascal@19825
|
1330 ;***************************************************************
|
pascal@20528
|
1331 ifdef EXTRA
|
pascal@20528
|
1332
|
pascal@19825
|
1333 global _try_default_args:near
|
pascal@19825
|
1334 proc _try_default_args near
|
pascal@19825
|
1335
|
pascal@19825
|
1336 mov bx,offset tazboot_cmd
|
pascal@19825
|
1337 call open
|
pascal@19825
|
1338 jc kver2ulret
|
pascal@19825
|
1339 mov cx,4096
|
pascal@19825
|
1340 mov di,[_heap_top]
|
pascal@19825
|
1341 extrn read_cmdline:near
|
pascal@19825
|
1342 jmp near read_cmdline ; read_cmdline(ax,di,cx)
|
pascal@19825
|
1343
|
pascal@19825
|
1344 endp _try_default_args
|
pascal@19825
|
1345
|
pascal@20528
|
1346 endif
|
pascal@19825
|
1347
|
pascal@19515
|
1348 ends _TEXT
|
pascal@19515
|
1349
|
pascal@19515
|
1350 end
|
pascal@19515
|
1351
|
pascal@19515
|
1352 ;###### END OF FILE ############################################
|
pascal@19825
|
1353
|