Rev 291 | Rev 321 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
164 | serge | 1 | |
212 | serge | 2 | |
164 | serge | 3 | |
4 | proc mem_test |
||
5 | |||
214 | serge | 6 | |
164 | serge | 7 | and eax, not (CR0_CD+CR0_NW) |
212 | serge | 8 | or eax, CR0_CD ;disable caching |
214 | serge | 9 | mov cr0, eax |
164 | serge | 10 | wbinvd ;invalidate cache |
214 | serge | 11 | |
164 | serge | 12 | |
214 | serge | 13 | mov ebx, 'TEST' |
164 | serge | 14 | @@: |
15 | add edi, 0x400000 |
||
16 | xchg ebx, dword [edi] |
||
17 | cmp dword [edi], 'TEST' |
||
18 | xchg ebx, dword [edi] |
||
19 | je @b |
||
20 | |||
21 | |||
212 | serge | 22 | mov cr0, eax |
164 | serge | 23 | mov eax, edi |
24 | mov [LFBSize], 0x00800000 |
||
214 | serge | 25 | ret |
164 | serge | 26 | endp |
27 | |||
28 | |||
29 | proc init_memEx |
||
30 | xor eax, eax |
||
31 | mov edi, sys_pgdir |
||
32 | mov ecx, 2048 |
||
33 | rep stosd |
||
34 | |||
35 | |||
36 | jnc .no_PSE |
||
37 | |||
38 | |||
39 | or ebx, CR4_PSE |
||
40 | mov eax, PG_LARGE+PG_SW |
||
41 | bt [cpu_caps], CAPS_PGE |
||
42 | jnc @F |
||
43 | or eax, PG_GLOBAL |
||
44 | or ebx, CR4_PGE |
||
45 | @@: |
||
46 | mov cr4, ebx |
||
168 | serge | 47 | |
48 | |||
164 | serge | 49 | add eax, 0x00400000 |
50 | mov dword [sys_pgdir+4], eax |
||
51 | add eax, 0x00400000 |
||
52 | mov dword [sys_pgdir+8], eax |
||
53 | |||
54 | |||
188 | serge | 55 | |
164 | serge | 56 | |
57 | sub ecx, 3 ;4 |
||
212 | serge | 58 | mov eax, tmp_page_tab+PG_SW |
164 | serge | 59 | mov edi, sys_pgdir+12 ;16 |
212 | serge | 60 | |
164 | serge | 61 | |
62 | .no_PSE: |
||
63 | mov eax, PG_SW |
||
64 | mov esi, tmp_page_tab |
||
65 | mov ecx, 3072/4; 4096/4 ;0x0 - 0x00FFFFFF |
||
212 | serge | 66 | .map_low: |
164 | serge | 67 | mov [esi], eax |
68 | add eax, 0x1000 |
||
69 | mov [esi+4], eax |
||
70 | add eax, 0x1000 |
||
71 | mov [esi+8], eax |
||
72 | add eax, 0x1000 |
||
73 | mov [esi+12], eax |
||
74 | add eax, 0x1000 |
||
75 | add esi, 16 |
||
76 | dec ecx |
||
77 | jnz .map_low ;ядро |
||
78 | |||
79 | |||
80 | mov eax, tmp_page_tab+PG_SW |
||
81 | mov edi, sys_pgdir |
||
82 | |||
83 | |||
84 | |||
85 | |||
86 | add eax, 0x1000 |
||
87 | add edi, 4 |
||
88 | dec ecx |
||
89 | jnz .map_kernel_tabs |
||
90 | |||
91 | |||
92 | bt [cpu_caps], CAPS_PSE |
||
93 | jc @F |
||
94 | add edi, 3072*4 ;4096*4 ;skip low kernel memory |
||
212 | serge | 95 | @@: |
164 | serge | 96 | mov ecx, [pg_data.kernel_tables] |
97 | sub ecx, 3 |
||
212 | serge | 98 | shl ecx, 10 |
164 | serge | 99 | xor eax, eax |
100 | cld |
||
101 | rep stosd |
||
102 | |||
103 | |||
188 | serge | 104 | |
105 | |||
164 | serge | 106 | endp |
107 | |||
108 | |||
109 | proc init_page_map |
||
110 | mov edi, sys_pgmap |
||
111 | mov ecx, 384/4 |
||
212 | serge | 112 | xor eax,eax |
164 | serge | 113 | cld |
114 | rep stosd |
||
115 | |||
116 | |||
117 | mov ecx, [pg_data.pagemap_size] |
||
118 | sub ecx, 384 |
||
212 | serge | 119 | shr ecx, 2 |
164 | serge | 120 | rep stosd |
121 | |||
122 | |||
212 | serge | 123 | mov edx, [pg_data.pages_count] |
164 | serge | 124 | mov ecx, [pg_data.kernel_tables] |
125 | bt [cpu_caps], CAPS_PSE |
||
126 | jnc @f |
||
127 | sub ecx, 3 |
||
212 | serge | 128 | @@: |
164 | serge | 129 | sub edx, 3072 |
212 | serge | 130 | sub edx, ecx |
164 | serge | 131 | mov [pg_data.pages_free], edx |
132 | |||
133 | |||
134 | mov ebx, ecx |
||
135 | shr ecx, 5 |
||
136 | rep stosd |
||
137 | |||
138 | |||
139 | mov ecx, ebx |
||
140 | and ecx, 31 |
||
141 | shl eax, cl |
||
142 | stosd |
||
143 | |||
144 | |||
212 | serge | 145 | mov ebx, sys_pgmap |
164 | serge | 146 | add ebx, [pg_data.pagemap_size] |
147 | mov [page_end], ebx |
||
148 | |||
149 | |||
150 | |||
151 | |||
152 | endp |
||
153 | |||
154 | |||
155 | proc alloc_page |
||
156 | |||
157 | |||
158 | cli |
||
159 | mov ebx, [page_start] |
||
160 | mov ecx, [page_end] |
||
161 | .l1: |
||
162 | bsf eax,[ebx]; |
||
163 | jnz .found |
||
164 | add ebx,4 |
||
165 | cmp ebx, ecx |
||
166 | jb .l1 |
||
167 | popfd |
||
168 | xor eax,eax |
||
169 | ret |
||
170 | .found: |
||
171 | btr [ebx], eax |
||
172 | mov [page_start],ebx |
||
173 | sub ebx, sys_pgmap |
||
174 | lea eax, [eax+ebx*8] |
||
254 | serge | 175 | shl eax, 12 |
164 | serge | 176 | dec [pg_data.pages_free] |
177 | popfd |
||
178 | ret |
||
179 | endp |
||
180 | |||
181 | |||
182 | proc alloc_pages stdcall, count:dword |
||
183 | pushfd |
||
184 | cli |
||
185 | mov eax, [count] |
||
186 | add eax, 7 |
||
187 | shr eax, 3 |
||
188 | mov [count], eax |
||
189 | cmp eax, [pg_data.pages_free] |
||
190 | ja .fail |
||
191 | |||
192 | |||
193 | mov ebx, [page_end] |
||
194 | .find: |
||
195 | mov edx, [count] |
||
196 | mov edi, ecx |
||
197 | .match: |
||
198 | cmp byte [ecx], 0xFF |
||
199 | jne .next |
||
200 | dec edx |
||
201 | jz .ok |
||
202 | inc ecx |
||
203 | cmp ecx,ebx |
||
204 | jb .match |
||
205 | .fail: xor eax, eax |
||
206 | popfd |
||
207 | ret |
||
208 | .next: |
||
209 | inc ecx |
||
210 | cmp ecx, ebx |
||
211 | jb .find |
||
212 | popfd |
||
213 | xor eax, eax |
||
214 | ret |
||
215 | .ok: |
||
216 | sub ecx, edi |
||
217 | inc ecx |
||
218 | mov esi, edi |
||
219 | xor eax, eax |
||
220 | rep stosb |
||
221 | sub esi, sys_pgmap |
||
222 | shl esi, 3+12 |
||
223 | mov eax, esi |
||
224 | mov ebx, [count] |
||
225 | shl ebx, 3 |
||
226 | sub [pg_data.pages_free], ebx |
||
227 | popfd |
||
228 | ret |
||
229 | endp |
||
230 | |||
231 | |||
232 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
||
233 | mov eax, [phis_addr] |
||
234 | and eax, not 0xFFF |
||
235 | or eax, [flags] |
||
236 | mov ebx, [lin_addr] |
||
237 | shr ebx, 12 |
||
238 | mov [pages_tab+ebx*4], eax |
||
239 | mov eax, [lin_addr] |
||
240 | invlpg [eax] |
||
241 | ret |
||
242 | endp |
||
243 | |||
244 | |||
245 | map_space: ;not implemented |
||
281 | serge | 246 | |
247 | |||
248 | |||
249 | |||
250 | |||
251 | |||
252 | proc free_page |
||
164 | serge | 253 | ;arg: eax page address |
254 | pushfd |
||
255 | cli |
||
256 | shr eax, 12 ;page index |
||
257 | mov ebx, sys_pgmap |
||
258 | bts [ebx], eax ;that's all! |
||
259 | cmc |
||
291 | serge | 260 | adc [pg_data.pages_free], 0 |
261 | shr eax, 3 |
||
164 | serge | 262 | and eax, not 3 ;dword offset from page_map |
263 | add eax, ebx |
||
264 | cmp [page_start], eax |
||
265 | ja @f |
||
266 | popfd |
||
267 | ret |
||
268 | @@: |
||
269 | mov [page_start], eax |
||
270 | popfd |
||
271 | ret |
||
272 | endp |
||
273 | |||
274 | |||
279 | serge | 275 | ; eax= page base |
281 | serge | 276 | ; ebx= liear address |
277 | ; ecx= count |
||
278 | |||
279 | |||
280 | commit_pages: ;not implemented |
||
281 | |||
282 | |||
283 | |||
284 | |||
285 | |||
286 | ; eax= base |
||
279 | serge | 287 | ; ecx= count |
281 | serge | 288 | |
279 | serge | 289 | |
164 | serge | 290 | release_pages: |
279 | serge | 291 | |
291 | serge | 292 | |
293 | mov ebx, pg_data.pg_mutex |
||
279 | serge | 294 | call wait_mutex ;ebx |
295 | |||
296 | |||
297 | mov edi, eax |
||
298 | |||
299 | |||
300 | add esi, pages_tab |
||
301 | |||
291 | serge | 302 | |
303 | mov ebx, [page_start] |
||
279 | serge | 304 | mov edx, sys_pgmap |
305 | @@: |
||
306 | xor eax, eax |
||
307 | xchg eax, [esi] |
||
308 | invlpg [edi] |
||
309 | |||
310 | |||
311 | jz .next |
||
312 | |||
313 | |||
314 | bts [edx], eax |
||
315 | cmc |
||
291 | serge | 316 | adc ebp, 0 |
317 | shr eax, 3 |
||
279 | serge | 318 | and eax, -4 |
319 | add eax, edx |
||
320 | cmp eax, ebx |
||
321 | jae .next |
||
322 | |||
323 | |||
324 | .next: |
||
325 | add edi, 0x1000 |
||
326 | add esi, 4 |
||
327 | dec ecx |
||
328 | jnz @B |
||
329 | mov [pg_data.pages_free], ebp |
||
291 | serge | 330 | and [pg_data.pg_mutex],0 |
279 | serge | 331 | pop ebp |
291 | serge | 332 | ret |
279 | serge | 333 | |
334 | |||
335 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
||
188 | serge | 336 | mov ebx, [lin_addr] |
164 | serge | 337 | shr ebx, 22 |
338 | mov eax, [phis_addr] |
||
339 | and eax, not 0xFFF |
||
340 | or eax, PG_UW ;+PG_NOCACHE |
||
341 | mov dword [current_pgdir+ebx*4], eax |
||
188 | serge | 342 | mov eax, [lin_addr] |
164 | serge | 343 | shr eax, 10 |
344 | add eax, pages_tab |
||
345 | invlpg [eax] |
||
346 | ret |
||
347 | endp |
||
348 | |||
349 | |||
350 | proc init_LFB |
||
351 | cmp dword [LFBAddress], -1 |
||
352 | jne @f |
||
353 | mov [0x2f0000+0x901c],byte 2 |
||
201 | serge | 354 | stdcall kernel_alloc, 0x280000 |
164 | serge | 355 | mov [LFBAddress], eax |
356 | ret |
||
357 | @@: |
||
358 | test [SCR_MODE],word 0100000000000000b |
||
359 | jnz @f |
||
211 | serge | 360 | mov [0x2f0000+0x901c],byte 2 |
361 | ret |
||
362 | @@: |
||
363 | call map_LFB |
||
164 | serge | 364 | ret |
365 | endp |
||
366 | |||
367 | |||
368 | proc map_LFB |
||
369 | locals |
||
370 | pg_count dd ? |
||
371 | endl |
||
372 | |||
373 | |||
374 | mov esi, [LFBAddress] |
||
375 | mov dword [exp_lfb+4], esi |
||
214 | serge | 376 | |
377 | |||
164 | serge | 378 | mov [pg_count], edi |
379 | shr edi, 10 |
||
380 | |||
381 | |||
382 | jnc .map_page_tables |
||
383 | mov ebx, esi |
||
384 | or esi, PG_LARGE+PG_UW |
||
385 | shr ebx, 20 |
||
386 | mov ecx, ebx |
||
387 | @@: |
||
388 | mov [sys_pgdir+ebx], esi |
||
389 | add ebx, 4 |
||
390 | add esi, 0x00400000 |
||
391 | dec edi |
||
392 | jnz @B |
||
393 | |||
394 | |||
207 | serge | 395 | jnc @F |
396 | or dword [sys_pgdir+ecx], PG_GLOBAL |
||
164 | serge | 397 | @@: |
207 | serge | 398 | mov eax, cr3 ;flush TLB |
164 | serge | 399 | mov cr3, eax |
400 | ret |
||
401 | |||
402 | |||
403 | |||
404 | |||
405 | call alloc_page |
||
406 | stdcall map_page_table, esi, eax |
||
188 | serge | 407 | add esi, 0x00400000 |
164 | serge | 408 | dec edi |
409 | jnz @B |
||
410 | |||
411 | |||
412 | mov esi, eax |
||
413 | shr esi, 10 |
||
414 | add esi, pages_tab |
||
415 | or eax, PG_UW |
||
416 | mov ecx, [pg_count] |
||
417 | shr ecx, 2 |
||
418 | .map: |
||
419 | mov [esi], eax |
||
420 | add eax, 0x1000 |
||
421 | mov [esi+4], eax |
||
422 | add eax, 0x1000 |
||
423 | mov [esi+8], eax |
||
424 | add eax, 0x1000 |
||
425 | mov [esi+12], eax |
||
426 | add eax, 0x1000 |
||
427 | add esi, 16 |
||
428 | sub ecx, 1 |
||
429 | jnz .map |
||
430 | |||
431 | |||
432 | mov cr3, eax |
||
433 | |||
434 | |||
435 | endp |
||
436 | |||
437 | |||
438 | proc new_mem_resize stdcall, new_size:dword |
||
439 | |||
440 | |||
276 | serge | 441 | call wait_mutex ;ebx |
442 | |||
164 | serge | 443 | |
444 | add edi,4095 |
||
445 | and edi,not 4095 |
||
446 | mov [new_size], edi |
||
447 | |||
448 | |||
449 | shl edx,8 |
||
450 | cmp [PROC_BASE+APPDATA.heap_base+edx],0 |
||
172 | serge | 451 | jne .exit |
452 | |||
453 | |||
454 | add esi, 4095 |
||
164 | serge | 455 | and esi, not 4095 |
456 | |||
457 | |||
458 | jae .expand |
||
459 | |||
460 | |||
461 | shr esi, 12 |
||
462 | @@: |
||
463 | mov eax, [pages_tab+0x00181000+edi*4] |
||
464 | test eax, 1 |
||
465 | jz .next |
||
466 | mov dword [pages_tab+0x00181000+edi*4], 2 |
||
467 | mov ebx, edi |
||
468 | shl ebx, 12 |
||
469 | invlpg [ebx+std_application_base_address] |
||
470 | call free_page |
||
471 | |||
472 | |||
473 | cmp edi, esi |
||
474 | jb @B |
||
475 | |||
476 | |||
477 | mov ebx, [new_size] |
||
294 | diamond | 478 | call update_mem_size |
479 | |||
164 | serge | 480 | |
481 | dec [pg_data.pg_mutex] |
||
482 | ret |
||
483 | |||
484 | |||
485 | add edi, new_app_base |
||
486 | add esi, new_app_base |
||
487 | |||
488 | |||
489 | push edi |
||
490 | |||
491 | |||
492 | and edi, not(0x3FFFFF) |
||
493 | add esi, 0x3FFFFF |
||
494 | and esi, not(0x3FFFFF) |
||
495 | |||
496 | |||
497 | jae .grow |
||
498 | |||
499 | |||
500 | |||
501 | |||
502 | call alloc_page |
||
503 | test eax, eax |
||
504 | jz .exit |
||
505 | |||
506 | |||
188 | serge | 507 | |
164 | serge | 508 | |
509 | shr edi, 10 |
||
510 | add edi, pages_tab |
||
511 | mov ecx, 1024 |
||
512 | xor eax, eax |
||
513 | cld |
||
514 | rep stosd |
||
515 | pop edi |
||
516 | |||
517 | |||
518 | cmp edi, esi |
||
519 | jb @B |
||
520 | .grow: |
||
521 | pop edi |
||
522 | pop esi |
||
523 | @@: |
||
524 | call alloc_page |
||
525 | test eax, eax |
||
526 | jz .exit |
||
527 | stdcall map_page,esi,eax,dword PG_UW |
||
528 | |||
529 | |||
530 | mov edi, esi |
||
531 | xor eax, eax |
||
532 | mov ecx, 1024 |
||
533 | cld |
||
534 | rep stosd |
||
535 | pop edi |
||
536 | |||
537 | |||
538 | cmp esi, edi |
||
539 | jb @B |
||
294 | diamond | 540 | |
164 | serge | 541 | |
542 | .exit: |
||
543 | xor eax, eax |
||
544 | inc eax |
||
545 | dec [pg_data.pg_mutex] |
||
546 | ret |
||
547 | endp |
||
548 | |||
549 | |||
294 | diamond | 550 | ; in: edx = slot shl 8 |
551 | ; ebx = new memory size |
||
552 | ; destroys eax,ecx,edx |
||
553 | |||
554 | |||
555 | ;search threads and update |
||
556 | ;application memory size infomation |
||
557 | mov ecx,[PROC_BASE+APPDATA.dir_table+edx] |
||
558 | mov eax,2 |
||
559 | |||
560 | |||
561 | ;eax = current slot |
||
562 | ;ebx = new memory size |
||
563 | ;ecx = page directory |
||
564 | cmp eax,[TASK_COUNT] |
||
565 | jg .search_threads_end |
||
566 | mov edx,eax |
||
567 | shl edx,5 |
||
568 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
||
569 | jz .search_threads_next |
||
570 | shl edx,3 |
||
571 | cmp [PROC_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
||
572 | jnz .search_threads_next |
||
573 | mov [PROC_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
||
574 | .search_threads_next: |
||
575 | inc eax |
||
576 | jmp .search_threads |
||
577 | .search_threads_end: |
||
578 | ret |
||
579 | |||
580 | |||
285 | serge | 581 | ; eax= linear address |
582 | ; |
||
583 | ; retval |
||
584 | ; eax= phisical page address |
||
585 | |||
586 | |||
164 | serge | 587 | get_pg_addr: |
285 | serge | 588 | shr eax, 12 |
589 | mov eax, [pages_tab+eax*4] |
||
590 | and eax, 0xFFFFF000 |
||
164 | serge | 591 | ret |
592 | |||
593 | |||
188 | serge | 594 | proc page_fault_handler |
164 | serge | 595 | pushad |
596 | |||
597 | |||
598 | mov eax, cr2 |
||
599 | push eax |
||
172 | serge | 600 | push ds |
164 | serge | 601 | push es |
188 | serge | 602 | |
164 | serge | 603 | |
604 | mov ds, ax |
||
605 | mov es, ax |
||
188 | serge | 606 | |
164 | serge | 607 | |
188 | serge | 608 | |
609 | |||
164 | serge | 610 | |
611 | |||
612 | jae .lfb_addr |
||
613 | |||
614 | |||
615 | jae .user_space |
||
616 | |||
617 | |||
188 | serge | 618 | jae .alloc |
619 | |||
620 | |||
164 | serge | 621 | jae .tab_space |
622 | |||
623 | |||
624 | |||
625 | |||
626 | shr ebx, 12 |
||
627 | mov ecx, ebx |
||
172 | serge | 628 | shr ecx, 10 |
629 | mov edx, [master_tab+ecx*4] |
||
630 | test edx, 1 |
||
631 | jz .fail |
||
632 | |||
633 | |||
164 | serge | 634 | test eax, 2 |
635 | jz .fail |
||
172 | serge | 636 | .alloc: |
188 | serge | 637 | call alloc_page |
164 | serge | 638 | and eax, eax |
639 | jz .exit |
||
640 | |||
641 | |||
642 | |||
643 | |||
188 | serge | 644 | and edi, 0xFFFFF000 |
645 | mov ecx, 1024 |
||
164 | serge | 646 | xor eax, eax |
647 | cld |
||
188 | serge | 648 | rep stosd |
649 | .exit: |
||
164 | serge | 650 | pop es |
188 | serge | 651 | pop ds |
164 | serge | 652 | mov esp, ebp |
653 | popad |
||
654 | add esp, 4 |
||
655 | iretd |
||
656 | .fail: |
||
172 | serge | 657 | pop es |
188 | serge | 658 | pop ds |
172 | serge | 659 | mov esp, ebp |
660 | popad |
||
661 | add esp, 4 |
||
662 | |||
164 | serge | 663 | |
172 | serge | 664 | |
665 | |||
666 | jmp exc_c |
||
667 | iretd |
||
668 | |||
669 | |||
164 | serge | 670 | ; shr ebx, 12 |
188 | serge | 671 | ; mov eax, [pages_tab+ebx*4] |
672 | ; shr ebx, 10 |
||
673 | ; mov eax, [master_tab+ebx*4] |
||
674 | jmp .exit |
||
675 | .old_addr: |
||
164 | serge | 676 | ; shr ebx, 12 |
188 | serge | 677 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 678 | ; shr ebx, 10 |
188 | serge | 679 | ; mov eax, [master_tab+ebx*4] |
680 | jmp .exit |
||
681 | .lfb_addr: |
||
164 | serge | 682 | ; shr ebx, 22 |
188 | serge | 683 | ; ;mov ecx, [sys_page_dir] |
684 | ; mov eax, [master_tab+ebx*4] |
||
685 | jmp .exit |
||
686 | .tab_space: |
||
164 | serge | 687 | ; shr ebx, 12 |
188 | serge | 688 | ; mov eax, [pages_tab+ebx*4] |
164 | serge | 689 | ; shr ebx, 10 |
188 | serge | 690 | ; ;mov ecx, [sys_page_dir] |
691 | ; mov eax, [master_tab+ebx*4] |
||
692 | jmp .exit |
||
693 | endp |
||
164 | serge | 694 | |
695 | |||
696 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
697 | ofs:dword,buf_size:dword |
||
698 | mov eax, [buf_size] |
||
699 | test eax, eax |
||
700 | jz .exit |
||
701 | |||
702 | |||
703 | and eax, 0xFFFFF000 |
||
704 | |||
705 | |||
706 | mov ebx, [ofs] |
||
707 | shr ebx, 22 |
||
708 | mov esi, [ipc_pdir] |
||
709 | mov edi, [ipc_ptab] |
||
710 | mov eax, [esi+ebx*4] |
||
711 | and eax, 0xFFFFF000 |
||
712 | test eax, eax |
||
713 | jz .exit |
||
714 | stdcall map_page,edi,eax,dword PG_UW |
||
715 | ; inc ebx |
||
716 | ; add edi, 0x1000 |
||
717 | ; mov eax, [esi+ebx*4] |
||
718 | ; test eax, eax |
||
719 | ; jz @f |
||
720 | ; and eax, 0xFFFFF000 |
||
721 | ; stdcall map_page, edi, eax |
||
722 | |||
723 | |||
724 | and edi, 0xFFFFF000 |
||
725 | mov ecx, [buf_size] |
||
726 | add ecx, 4095 |
||
727 | shr ecx, 12 |
||
728 | inc ecx |
||
729 | |||
730 | |||
731 | shr edx, 12 |
||
732 | and edx, 0x3FF |
||
733 | mov esi, [ipc_ptab] |
||
734 | |||
735 | |||
736 | and eax, 0xFFFFF000 |
||
737 | test eax, eax |
||
738 | jz .exit |
||
739 | stdcall map_page,edi,eax,dword PG_UW |
||
740 | add edi, 0x1000 |
||
741 | inc edx |
||
742 | dec ecx |
||
743 | jnz .map |
||
744 | |||
745 | |||
746 | ret |
||
747 | endp |
||
748 | |||
749 | |||
750 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
751 | ofs:dword,buf_size:dword |
||
752 | mov eax, [buf_size] |
||
753 | test eax, eax |
||
754 | jz .exit |
||
755 | |||
756 | |||
757 | and eax, 0xFFFFF000 |
||
758 | |||
759 | |||
760 | mov ebx, [ofs] |
||
761 | shr ebx, 22 |
||
762 | mov esi, [proc_mem_pdir] |
||
763 | mov edi, [proc_mem_tab] |
||
764 | mov eax, [esi+ebx*4] |
||
765 | and eax, 0xFFFFF000 |
||
766 | test eax, eax |
||
767 | jz .exit |
||
768 | stdcall map_page,edi,eax,dword PG_UW |
||
769 | |||
770 | |||
771 | and edi, 0xFFFFF000 |
||
772 | mov ecx, [buf_size] |
||
773 | add ecx, 4095 |
||
774 | shr ecx, 12 |
||
775 | inc ecx |
||
776 | |||
777 | |||
778 | shr edx, 12 |
||
779 | and edx, 0x3FF |
||
780 | mov esi, [proc_mem_tab] |
||
781 | |||
782 | |||
783 | ; and eax, 0xFFFFF000 |
||
784 | ; test eax, eax |
||
785 | ; jz .exit |
||
786 | stdcall map_page,edi,eax,dword PG_UW |
||
787 | add edi, 0x1000 |
||
788 | inc edx |
||
789 | dec ecx |
||
790 | jnz .map |
||
791 | .exit: |
||
792 | ret |
||
793 | endp |
||
794 | |||
795 | |||
796 | |||
797 | |||
798 | |||
799 | ;input: |
||
800 | ; eax=1 - set ipc buffer area |
||
801 | ; ebx=address of buffer |
||
802 | ; ecx=size of buffer |
||
803 | ; eax=2 - send message |
||
804 | ; ebx=PID |
||
805 | ; ecx=address of message |
||
806 | ; edx=size of message |
||
807 | |||
808 | |||
809 | jne @f |
||
810 | call set_ipc_buff |
||
811 | mov [esp+36], eax |
||
812 | ret |
||
813 | @@: |
||
814 | cmp eax, 2 |
||
815 | jne @f |
||
816 | stdcall sys_ipc_send, ebx, ecx, edx |
||
817 | mov [esp+36], eax |
||
818 | ret |
||
819 | @@: |
||
820 | xor eax, eax |
||
821 | not eax |
||
822 | mov [esp+36], eax |
||
823 | ret |
||
824 | |||
825 | |||
826 | proc set_ipc_buff |
||
827 | |||
828 | |||
829 | shl eax,8 |
||
830 | add eax, PROC_BASE |
||
831 | pushf |
||
832 | cli |
||
833 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
834 | mov [eax+0xA4],ecx |
||
835 | |||
836 | |||
837 | add ecx, ebx |
||
838 | add ecx, 4095 |
||
839 | and ecx, not 4095 |
||
840 | |||
841 | |||
842 | add ebx, 0x1000 |
||
843 | cmp ebx, ecx |
||
844 | jna .touch |
||
845 | |||
846 | |||
847 | xor eax, eax |
||
848 | ret |
||
849 | endp |
||
850 | |||
851 | |||
852 | locals |
||
853 | dst_slot dd ? |
||
854 | dst_offset dd ? |
||
855 | buf_size dd ? |
||
856 | endl |
||
857 | |||
858 | |||
859 | cli |
||
860 | |||
861 | |||
862 | call pid_to_slot |
||
863 | test eax,eax |
||
864 | jz .no_pid |
||
865 | |||
866 | |||
867 | shl eax,8 |
||
868 | mov edi,[eax+PROC_BASE+0xa0] ;is ipc area defined? |
||
869 | test edi,edi |
||
870 | jz .no_ipc_area |
||
871 | |||
872 | |||
873 | add edi, new_app_base |
||
874 | and ebx, 0xFFF |
||
875 | mov [dst_offset], ebx |
||
876 | |||
877 | |||
878 | mov [buf_size], esi |
||
879 | |||
880 | |||
881 | edi, esi |
||
882 | |||
883 | |||
884 | add edi, [ipc_tmp] |
||
885 | cmp dword [edi], 0 |
||
886 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
887 | |||
227 | serge | 888 | |
164 | serge | 889 | mov edx, ebx |
890 | add ebx, 8 |
||
891 | add ebx, [msg_size] |
||
892 | cmp ebx, [buf_size] |
||
893 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
894 | |||
227 | serge | 895 | |
164 | serge | 896 | mov eax,[TASK_BASE] |
897 | mov eax, [eax+0x04] ;eax - our PID |
||
898 | mov edi, [dst_offset] |
||
899 | add edi, [ipc_tmp] |
||
900 | add edi, edx |
||
901 | mov [edi], eax |
||
902 | mov ecx, [msg_size] |
||
903 | |||
904 | |||
905 | add edi, 8 |
||
906 | mov esi, [msg_addr] |
||
907 | add esi, new_app_base |
||
908 | cld |
||
909 | rep movsb |
||
910 | |||
911 | |||
912 | mov edx, ebx |
||
913 | shr ebx, 12 |
||
914 | xor eax, eax |
||
915 | mov [pages_tab+ebx*4], eax |
||
916 | invlpg [edx] |
||
917 | |||
918 | |||
919 | mov edx, ebx |
||
920 | shr ebx, 12 |
||
921 | xor eax, eax |
||
922 | mov [pages_tab+ebx*4], eax |
||
923 | invlpg [edx] |
||
924 | |||
925 | |||
926 | mov edx, ebx |
||
927 | shr ebx, 12 |
||
928 | xor eax, eax |
||
929 | mov [pages_tab+ebx*4], eax |
||
930 | invlpg [edx] |
||
931 | |||
932 | |||
933 | shl eax, 8 |
||
934 | or [eax+PROC_BASE+0xA8],dword 0x40 |
||
935 | cmp dword [check_idle_semaphore],20 |
||
936 | jge .ipc_no_cis |
||
937 | |||
938 | |||
939 | .ipc_no_cis: |
||
940 | popf |
||
941 | xor eax, eax |
||
942 | ret |
||
943 | .no_pid: |
||
944 | popf |
||
945 | mov eax, 4 |
||
946 | ret |
||
947 | .no_ipc_area: |
||
948 | popf |
||
949 | xor eax, eax |
||
950 | inc eax |
||
951 | ret |
||
952 | .ipc_blocked: |
||
953 | popf |
||
954 | mov eax, 2 |
||
955 | ret |
||
956 | .buffer_overflow: |
||
957 | popf |
||
958 | mov eax, 3 |
||
959 | ret |
||
960 | endp |
||
961 | |||
962 | |||
963 | sysfn_meminfo: |
||
170 | serge | 964 | |
164 | serge | 965 | |
170 | serge | 966 | cmp ebx, new_app_base |
172 | serge | 967 | jb .fail |
968 | |||
969 | |||
164 | serge | 970 | mov [ebx], eax |
170 | serge | 971 | shl eax, 12 |
172 | serge | 972 | mov [esp+36], eax |
973 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 974 | mov [ebx+4], ecx |
975 | mov edx, [pg_data.pages_faults] |
||
976 | mov [ebx+8], edx |
||
977 | mov esi, [heap_size] |
||
978 | mov [ebx+12], esi |
||
979 | mov edi, [heap_free] |
||
980 | mov [ebx+16], edi |
||
981 | mov eax, [heap_blocks] |
||
982 | mov [ebx+20], eax |
||
983 | mov ecx, [free_blocks] |
||
984 | mov [ebx+24], ecx |
||
985 | ret |
||
164 | serge | 986 | .fail: |
172 | serge | 987 | mov dword [esp+36], -1 |
988 | ret |
||
989 | |||
164 | serge | 990 | |
991 | new_services: |
||
992 | |||
993 | |||
994 | jle sys_sheduler |
||
995 | |||
996 | |||
170 | serge | 997 | jb .fail |
164 | serge | 998 | ja @f |
999 | |||
1000 | |||
188 | serge | 1001 | mov [esp+36], eax |
164 | serge | 1002 | ret |
1003 | @@: |
||
1004 | cmp eax, 12 |
||
1005 | ja @f |
||
1006 | |||
1007 | |||
1008 | mov [esp+36], eax |
||
1009 | ret |
||
1010 | @@: |
||
1011 | cmp eax, 13 |
||
1012 | ja @f |
||
1013 | add ebx, new_app_base |
||
188 | serge | 1014 | stdcall user_free, ebx |
164 | serge | 1015 | mov [esp+36], eax |
1016 | ret |
||
1017 | @@: |
||
1018 | cmp eax, 14 |
||
1019 | ja @f |
||
1020 | add ebx, new_app_base |
||
227 | serge | 1021 | cmp ebx, new_app_base |
172 | serge | 1022 | jb .fail |
1023 | stdcall get_event_ex, ebx, ecx |
||
227 | serge | 1024 | mov [esp+36], eax |
1025 | ret |
||
164 | serge | 1026 | @@: |
1027 | cmp eax, 15 |
||
1028 | ja @f |
||
1029 | mov ecx, [CURRENT_TASK] |
||
1030 | shl ecx, 8 |
||
1031 | mov eax, [ecx+PROC_BASE+APPDATA.fpu_handler] |
||
1032 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], ebx |
||
1033 | mov [esp+36], eax |
||
1034 | ret |
||
1035 | @@: |
||
1036 | cmp eax, 16 |
||
1037 | ja @f |
||
1038 | |||
1039 | |||
188 | serge | 1040 | jz .fail |
1041 | add ebx, new_app_base |
||
164 | serge | 1042 | cmp ebx, new_app_base |
172 | serge | 1043 | jb .fail |
1044 | stdcall get_service, ebx |
||
164 | serge | 1045 | mov [esp+36], eax |
1046 | ret |
||
1047 | @@: |
||
1048 | cmp eax, 17 |
||
1049 | ja @f |
||
1050 | stdcall srv_handlerEx, ebx |
||
1051 | mov [esp+36], eax |
||
1052 | ret |
||
1053 | @@: |
||
168 | serge | 1054 | cmp eax, 18 |
1055 | ja @f |
||
1056 | mov ecx, [CURRENT_TASK] |
||
1057 | shl ecx, 8 |
||
1058 | mov eax, [ecx+PROC_BASE+APPDATA.sse_handler] |
||
1059 | mov [ecx+PROC_BASE+APPDATA.sse_handler], ebx |
||
1060 | mov [esp+36], eax |
||
1061 | ret |
||
1062 | @@: |
||
164 | serge | 1063 | cmp eax, 19 |
198 | serge | 1064 | ja .fail |
227 | serge | 1065 | add ebx, new_app_base |
198 | serge | 1066 | cmp ebx, new_app_base |
1067 | jb .fail |
||
1068 | stdcall load_library, ebx |
||
1069 | mov [esp+36], eax |
||
1070 | ret |
||
1071 | |||
227 | serge | 1072 | |
164 | serge | 1073 | xor eax, eax |
1074 | mov [esp+36], eax |
||
1075 | ret |
||
1076 | |||
1077 | |||
1078 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
||
1079 | |||
1080 | |||
1081 | jecxz .end |
||
1082 | |||
1083 | |||
1084 | |||
1085 | |||
1086 | mov esi,edi |
||
1087 | xor eax,eax |
||
1088 | repne scasb |
||
1089 | neg ecx ; cx = count - strlen |
||
1090 | add ecx,ebx ; strlen + count - strlen |
||
1091 | |||
1092 | |||
1093 | mov edi,esi |
||
1094 | mov esi,[str2] |
||
1095 | repe cmpsb |
||
1096 | mov al,[esi-1] |
||
1097 | xor ecx,ecx |
||
1098 | |||
1099 | |||
1100 | ja .str2_big |
||
1101 | je .end |
||
1102 | |||
1103 | |||
1104 | sub ecx,2 |
||
1105 | |||
1106 | |||
1107 | not ecx |
||
1108 | .end: |
||
1109 | mov eax,ecx |
||
1110 | ret |
||
1111 | endp |
||
1112 | |||
1113 | |||
1114 | proc test_cpu |
||
1115 | locals |
||
1116 | cpu_type dd ? |
||
166 | serge | 1117 | cpu_id dd ? |
1118 | cpu_Intel dd ? |
||
1119 | cpu_AMD dd ? |
||
1120 | endl |
||
164 | serge | 1121 | |
1122 | |||
1123 | xor eax, eax |
||
211 | serge | 1124 | mov [cpu_caps], eax |
1125 | mov [cpu_caps+4], eax |
||
1126 | |||
164 | serge | 1127 | |
1128 | pop eax |
||
1129 | mov ecx, eax |
||
1130 | xor eax, 0x40000 |
||
1131 | push eax |
||
1132 | popfd |
||
1133 | pushfd |
||
1134 | pop eax |
||
1135 | xor eax, ecx |
||
1136 | mov [cpu_type], CPU_386 |
||
1137 | jz .end_cpuid |
||
221 | serge | 1138 | push ecx |
164 | serge | 1139 | popfd |
1140 | |||
1141 | |||
1142 | mov eax, ecx |
||
1143 | xor eax, 0x200000 |
||
1144 | push eax |
||
1145 | popfd |
||
1146 | pushfd |
||
1147 | pop eax |
||
1148 | xor eax, ecx |
||
1149 | je .end_cpuid |
||
221 | serge | 1150 | mov [cpu_id], 1 |
164 | serge | 1151 | |
1152 | |||
1153 | cpuid |
||
1154 | mov [cpu_vendor], ebx |
||
1155 | mov [cpu_vendor+4], edx |
||
1156 | mov [cpu_vendor+8], ecx |
||
1157 | cmp ebx, dword [intel_str] |
||
1158 | jne .check_AMD |
||
1159 | cmp edx, dword [intel_str+4] |
||
1160 | jne .check_AMD |
||
1161 | cmp ecx, dword [intel_str+8] |
||
1162 | jne .check_AMD |
||
1163 | mov [cpu_Intel], 1 |
||
1164 | cmp eax, 1 |
||
1165 | jl .end_cpuid |
||
1166 | mov eax, 1 |
||
1167 | cpuid |
||
1168 | mov [cpu_sign], eax |
||
1169 | mov [cpu_info], ebx |
||
1170 | mov [cpu_caps], edx |
||
1171 | mov [cpu_caps+4],ecx |
||
1172 | |||
1173 | |||
1174 | and eax, 0x0f |
||
1175 | ret |
||
1176 | .end_cpuid: |
||
1177 | mov eax, [cpu_type] |
||
1178 | ret |
||
1179 | |||
1180 | |||
1181 | cmp ebx, dword [AMD_str] |
||
1182 | jne .unknown |
||
221 | serge | 1183 | cmp edx, dword [AMD_str+4] |
164 | serge | 1184 | jne .unknown |
221 | serge | 1185 | cmp ecx, dword [AMD_str+8] |
164 | serge | 1186 | jne .unknown |
221 | serge | 1187 | mov [cpu_AMD], 1 |
164 | serge | 1188 | cmp eax, 1 |
1189 | jl .unknown |
||
221 | serge | 1190 | mov eax, 1 |
164 | serge | 1191 | cpuid |
1192 | mov [cpu_sign], eax |
||
1193 | mov [cpu_info], ebx |
||
1194 | mov [cpu_caps], edx |
||
1195 | mov [cpu_caps+4],ecx |
||
1196 | shr eax, 8 |
||
1197 | and eax, 0x0f |
||
1198 | ret |
||
1199 | .unknown: |
||
221 | serge | 1200 | mov eax, 1 |
1201 | cpuid |
||
1202 | mov [cpu_sign], eax |
||
1203 | mov [cpu_info], ebx |
||
1204 | mov [cpu_caps], edx |
||
1205 | mov [cpu_caps+4],ecx |
||
1206 | shr eax, 8 |
||
1207 | and eax, 0x0f |
||
1208 | ret |
||
1209 | endp |
||
164 | serge | 1210 | |
1211 | |||
1212 | MEM_WC equ 1 ;write combined memory |
||
1213 | MEM_UC equ 0 ;uncached memory |
||
1214 | |||
1215 | |||
1216 | proc init_mtrr |
||
1217 | |||
1218 | |||
1219 | je .exit |
||
1220 | |||
1221 | |||
211 | serge | 1222 | jnc .exit |
1223 | |||
1224 | |||
164 | serge | 1225 | or eax, 0x60000000 ;disable caching |
1226 | mov cr0, eax |
||
1227 | wbinvd ;invalidate cache |
||
1228 | |||
1229 | |||
1230 | rdmsr ; |
||
1231 | push eax |
||
1232 | |||
1233 | |||
1234 | xor eax, eax |
||
1235 | mov ecx, 0x2FF |
||
1236 | wrmsr ;disable all MTRR |
||
1237 | |||
1238 | |||
1239 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1240 | xor edx, edx |
||
1241 | xor eax, eax |
||
1242 | mov ecx, 0x204 |
||
1243 | mov ebx, 6 |
||
1244 | @@: |
||
1245 | wrmsr ;disable unused MTRR |
||
1246 | inc ecx |
||
1247 | wrmsr |
||
1248 | inc ecx |
||
1249 | dec ebx |
||
1250 | jnz @b |
||
1251 | |||
1252 | |||
1253 | |||
1254 | |||
1255 | or eax, 0x800 ;set default memtype to UC |
||
1256 | and al, 0xF0 |
||
1257 | mov ecx, 0x2FF |
||
1258 | wrmsr ;and enable MTRR |
||
1259 | |||
1260 | |||
1261 | and eax, not 0x60000000 |
||
1262 | mov cr0, eax ; enable caching |
||
1263 | .exit: |
||
1264 | ret |
||
1265 | endp |
||
1266 | |||
1267 | |||
1268 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1269 | |||
1270 | |||
1271 | mov eax, [base] |
||
1272 | or eax, [mem_type] |
||
1273 | mov ecx, [reg] |
||
1274 | lea ecx, [0x200+ecx*2] |
||
1275 | wrmsr |
||
1276 | |||
1277 | |||
1278 | dec ebx |
||
1279 | mov eax, 0xFFFFFFFF |
||
1280 | mov edx, 0x0000000F |
||
1281 | sub eax, ebx |
||
1282 | sbb edx, 0 |
||
1283 | or eax, 0x800 |
||
1284 | inc ecx |
||
1285 | wrmsr |
||
1286 | ret |
||
1287 | endp |
||
1288 | |||
1289 | |||
172 | serge | 1290 | proc stall stdcall, delay:dword |
1291 | push ecx |
||
1292 | push edx |
||
1293 | push ebx |
||
1294 | push eax |
||
1295 | |||
1296 | |||
1297 | mul [stall_mcs] |
||
1298 | mov ebx, eax ;low |
||
1299 | mov ecx, edx ;high |
||
1300 | rdtsc |
||
1301 | add ebx, eax |
||
1302 | adc ecx,edx |
||
1303 | @@: |
||
1304 | rdtsc |
||
1305 | sub eax, ebx |
||
1306 | sbb edx, ecx |
||
1307 | jb @B |
||
1308 | |||
1309 | |||
1310 | pop ebx |
||
1311 | pop edx |
||
1312 | pop ecx |
||
1313 | ret |
||
1314 | endp |
||
1315 | |||
1316 | |||
164 | serge | 1317 | align 4 |
1318 | intel_str db "GenuineIntel",0 |
||
1319 | AMD_str db "AuthenticAMD",0 |
||
1320 | endg |
||
1321 | |||
1322 | |||
1323 | align 16 |
||
1324 | irq_tab rd 16 |
||
1325 | |||
1326 | |||
1327 | |||
1328 | |||
1329 | |||
1330 | ipc_pdir rd 1 |
||
1331 | ipc_ptab rd 1 |
||
1332 | |||
1333 | |||
1334 | proc_mem_pdir rd 1 |
||
1335 | proc_mem_tab rd 1 |
||
1336 | |||
1337 | |||
1338 | tmp_task_ptab rd 1 |
||
1339 | tmp_task_data rd 1 |
||
1340 | |||
1341 | |||
1342 | fdd_buff rd 1 |
||
1343 | LFBSize rd 1 |
||
214 | serge | 1344 | |
164 | serge | 1345 | |
172 | serge | 1346 | ;;CPUID information |
164 | serge | 1347 | |
1348 | |||
1349 | cpu_sign rd 1 |
||
1350 | cpu_info rd 1 |
||
1351 | |||
1352 | |||
221 | serge | 1353 | |
1354 | |||
1355 | cur_saved_data rb 4096 |
||
1356 | |||
1357 | |||
276 | serge | 1358 | ;cursor_map rd 2 |
1359 | ;cursor_start rd 1 |
||
1360 | ;cursor_end rd 1 |
||
1361 | |||
221 | serge | 1362 | |
1363 | hw_cursor rd 1 |
||
233 | serge | 1364 | |
221 | serge | 1365 | |
1366 | scr_height rd 1 |
||
1367 | |||
1368 | |||
1369 | cur_saved_base rd 1 |
||
1370 | cur_saved_interl rd 1 |
||
1371 | cur_saved_w rd 1 |
||
1372 | cur_saved_h rd 1 |
||
1373 | |||
1374 | |||
164 | serge | 1375 | |
1376 | |||
1377 | align 16 |
||
1378 | |||
227 | serge | 1379 | |
276 | serge | 1380 | |
1381 | |||
278 | serge | 1382 | ; srv_tab rb 36*32 |
1383 | mem_block_map rb 512 |
||
227 | serge | 1384 | event_map rb 128 |
1385 | mem_block_list rd 64 |
||
1386 | mem_block_mask rd 2 |
||
1387 | |||
1388 | |||
278 | serge | 1389 | ; srv_map rd 1 |
1390 | |||
164 | serge | 1391 | |
278 | serge | 1392 | srv.bk rd 1 |
1393 | |||
1394 | |||
164 | serge | 1395 | mem_block_arr rd 1 |
1396 | mem_block_start rd 1 |
||
1397 | mem_block_end rd 1 |
||
1398 | |||
279 | serge | 1399 | |
1400 | heap_size rd 1 |
||
170 | serge | 1401 | heap_free rd 1 |
1402 | heap_blocks rd 1 |
||
1403 | free_blocks rd 1 |
||
1404 | |||
164 | serge | 1405 | |
1406 | page_end rd 1 |
||
1407 | events rd 1 |
||
227 | serge | 1408 | event_start rd 1 |
1409 | event_end rd 1 |
||
1410 | |||
1411 | |||
164 | serge | 1412 | endg |
1413 | |||
1414 | |||
1415 | |||
1416 | ; push edx |
||
1417 | ; mov edx, 0x400 ;bocsh |
||
1418 | ; mov al,0xff ;bocsh |
||
1419 | ; out dx, al ;bocsh |
||
1420 | ; pop edx |
||
1421 | ; pop eax |
||
1422 | |||
1423 | |||
237 | serge | 1424 | |
1425 | k_strrchr: |
||
1426 | push eax |
||
1427 | xor eax,eax |
||
1428 | or ecx,-1 |
||
1429 | repne scasb |
||
1430 | add ecx,1 |
||
1431 | neg ecx |
||
1432 | sub edi,1 |
||
1433 | pop eax |
||
1434 | std |
||
1435 | repne scasb |
||
1436 | cld |
||
1437 | add edi,1 |
||
1438 | |||
1439 | |||
1440 | jne @F |
||
1441 | mov eax,edi |
||
1442 | ret |
||
1443 | @@: |
||
1444 | xor eax,eax |
||
1445 | ret |
||
1446 | |||
1447 | |||
1448 | proc k_strncpy stdcall, dest:dword, src:dword, maxlen:dword |
||
1449 | mov eax, [dest] |
||
1450 | mov esi, [src] |
||
1451 | mov ecx, [maxlen] |
||
1452 | test eax, eax |
||
1453 | jz .L9 |
||
1454 | test esi, esi |
||
1455 | jz .L9 |
||
1456 | test ecx, ecx |
||
1457 | jz .L9 |
||
1458 | |||
1459 | |||
1460 | jmp .L1 |
||
1461 | |||
1462 | |||
1463 | .L2: |
||
1464 | mov edx, [esi+eax] |
||
1465 | mov [eax], dl |
||
1466 | test dl, dl |
||
1467 | jz .L7 |
||
1468 | |||
1469 | |||
1470 | test dh, dh |
||
1471 | jz .L6 |
||
1472 | |||
1473 | |||
1474 | mov [eax+2],dl |
||
1475 | test dl, dl |
||
1476 | jz .L5 |
||
1477 | |||
1478 | |||
1479 | test dh, dh |
||
1480 | jz .L4 |
||
1481 | add eax, 4 |
||
1482 | .L1: |
||
1483 | sub ecx, 4 |
||
1484 | jae .L2 |
||
1485 | |||
1486 | |||
1487 | jz .L9 |
||
1488 | |||
1489 | |||
1490 | mov [eax], dl |
||
1491 | test dl, dl |
||
1492 | jz .L3 |
||
1493 | |||
1494 | |||
1495 | dec ecx |
||
1496 | jz .L9 |
||
1497 | |||
1498 | |||
1499 | mov [eax], dl |
||
1500 | test dl, dl |
||
1501 | jz .L3 |
||
1502 | |||
1503 | |||
1504 | dec ecx |
||
1505 | jz .L9 |
||
1506 | |||
1507 | |||
1508 | mov [eax], dl |
||
1509 | test dl, dl |
||
1510 | jz .L3 |
||
1511 | |||
1512 | |||
1513 | jmp .L9 |
||
1514 | |||
1515 | |||
1516 | inc eax |
||
1517 | |||
1518 | |||
1519 | inc eax |
||
1520 | |||
1521 | |||
1522 | inc eax |
||
1523 | .L7: |
||
1524 | add ecx,3 |
||
1525 | jz .L9 |
||
1526 | .L8: |
||
1527 | mov byte [ecx+eax], 0 |
||
1528 | .L3: |
||
1529 | dec ecx |
||
1530 | jnz .L8 |
||
1531 | .L9: |
||
1532 | ret |
||
1533 | endp |
||
1534 | |||
1535 | |||
1536 | |||
1537 | |||
1538 | |||
1539 | |||
1540 | mov eax,[esp+4] |
||
1541 | mov edx, 3 |
||
1542 | |||
1543 | |||
1544 | jz .L1 |
||
1545 | jp .L0 |
||
1546 | |||
1547 | |||
1548 | je .L2 |
||
1549 | |||
1550 | |||
1551 | cmp dh, byte [eax] |
||
1552 | |||
1553 | |||
1554 | |||
1555 | |||
1556 | xor edx, 2 |
||
1557 | |||
1558 | |||
1559 | .L0: |
||
1560 | cmp dh, [eax] |
||
1561 | je .L2 |
||
1562 | |||
1563 | |||
1564 | xor edx, edx |
||
1565 | |||
1566 | |||
1567 | mov ecx, [eax] |
||
1568 | add eax, 4 |
||
1569 | |||
1570 | |||
1571 | add ecx, magic |
||
1572 | |||
1573 | |||
1574 | jnc .L3 |
||
1575 | |||
1576 | |||
1577 | and edx, not magic |
||
1578 | jne .L3 |
||
1579 | |||
1580 | |||
1581 | add eax, 4 |
||
1582 | |||
1583 | |||
1584 | add ecx, magic |
||
1585 | dec edx |
||
1586 | jnc .L3 |
||
1587 | |||
1588 | |||
1589 | and edx, not magic |
||
1590 | jne .L3 |
||
1591 | |||
1592 | |||
1593 | add eax, 4 |
||
1594 | |||
1595 | |||
1596 | add ecx, magic |
||
1597 | |||
1598 | |||
1599 | jnc .L3 |
||
1600 | |||
1601 | |||
1602 | |||
1603 | |||
1604 | jne .L3 |
||
1605 | |||
1606 | |||
1607 | add eax, 4 |
||
1608 | |||
1609 | |||
1610 | add ecx, magic |
||
1611 | |||
1612 | |||
1613 | jnc .L3 |
||
1614 | |||
1615 | |||
1616 | |||
1617 | |||
1618 | je .L1 |
||
1619 | |||
1620 | |||
1621 | sub ecx, magic |
||
1622 | |||
1623 | |||
1624 | jz .L2 |
||
1625 | |||
1626 | |||
1627 | test ch, ch |
||
1628 | jz .L2 |
||
1629 | |||
1630 | |||
1631 | inc eax |
||
1632 | |||
1633 | |||
1634 | jz .L2 |
||
1635 | |||
1636 | |||
1637 | |||
1638 | |||
1639 | sub eax, [esp+4] |
||
1640 | ret |
||
1641 | |||
1642 | |||
1643 |