Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3675 | GerdtR | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DISASSEMBLER ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
3 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
4 | |||
5 | ; TODO: prepare to work independently from debugger |
||
6 | |||
7 | ;----------------------------------------------------------------------------- |
||
8 | ; Read next byte for disassembly |
||
9 | ; |
||
10 | ; out: AL = byte |
||
11 | disasm_get_byte: |
||
12 | push ecx |
||
13 | mov ecx, [disasm_cur_pos] |
||
14 | sub ecx, [disasm_start_pos] |
||
15 | cmp ecx, [disasm_buf_size] |
||
16 | jae disasm_err |
||
17 | mov al, [disasm_buffer+ecx] |
||
18 | pop ecx |
||
19 | inc [disasm_cur_pos] |
||
20 | ret |
||
21 | |||
22 | ;----------------------------------------------------------------------------- |
||
23 | ; Read next word for disassembly |
||
24 | ; |
||
25 | ; out: AX = word |
||
26 | disasm_get_word: |
||
27 | push ecx |
||
28 | mov ecx, [disasm_cur_pos] |
||
29 | sub ecx, [disasm_start_pos] |
||
30 | inc ecx |
||
31 | cmp ecx, [disasm_buf_size] |
||
32 | jae disasm_err |
||
33 | mov ax, word [disasm_buffer-1+ecx] |
||
34 | pop ecx |
||
35 | add [disasm_cur_pos], 2 |
||
36 | ret |
||
37 | |||
38 | ;----------------------------------------------------------------------------- |
||
39 | ; Read next dword for disassembly |
||
40 | ; |
||
41 | ; out: EAX = dword |
||
42 | disasm_get_dword: |
||
43 | push ecx |
||
44 | mov ecx, [disasm_cur_pos] |
||
45 | sub ecx, [disasm_start_pos] |
||
46 | add ecx, 3 |
||
47 | cmp ecx, [disasm_buf_size] |
||
48 | jae disasm_err |
||
49 | mov eax, dword [disasm_buffer-3+ecx] |
||
50 | pop ecx |
||
51 | add [disasm_cur_pos], 4 |
||
52 | ret |
||
53 | |||
54 | ;----------------------------------------------------------------------------- |
||
55 | |||
56 | disasm_err: |
||
57 | mov esp, ebp |
||
58 | |||
59 | ; TODO: make it local? |
||
60 | stc_ret: |
||
61 | stc |
||
62 | ret |
||
63 | |||
64 | ;----------------------------------------------------------------------------- |
||
65 | ; Exit from disassembly loop |
||
66 | |||
67 | disasm_ret: |
||
68 | mov esp, ebp |
||
69 | and byte [edi], 0 |
||
70 | ret |
||
71 | |||
72 | ;----------------------------------------------------------------------------- |
||
73 | ; Disassembly one instruction |
||
74 | ; |
||
75 | ; Read data, in loop, to read multibyte instruction opcodes |
||
76 | |||
77 | disasm_instr: |
||
78 | mov ebp, esp |
||
79 | cmp [debuggee_pid], 0 |
||
80 | jz stc_ret |
||
81 | mov edi, disasm_string |
||
82 | xor ecx, ecx |
||
83 | |||
84 | ; TODO: make it local? |
||
85 | ; ecx=flags (IN or OUT?) |
||
86 | disasm_loop1: |
||
87 | xor eax, eax |
||
88 | call disasm_get_byte |
||
89 | jmp dword [disasm_table_1 + eax*4] |
||
90 | |||
91 | ;----------------------------------------------------------------------------- |
||
92 | |||
93 | cop0: |
||
94 | clock: |
||
95 | csegcs: |
||
96 | csegds: |
||
97 | cseges: |
||
98 | csegss: |
||
99 | csegfs: |
||
100 | cseggs: |
||
101 | mov esi, cmd1 |
||
102 | |||
103 | iglobal |
||
104 | cmd1: |
||
105 | db 0x2E,3,'cs:' |
||
106 | db 0x36,3,'ss:' |
||
107 | db 0x3E,3,'ds:' |
||
108 | db 0x26,3,'es:' |
||
109 | db 0x64,3,'fs:' |
||
110 | db 0x65,3,'gs:' |
||
111 | db 0x06,10,'push es' |
||
112 | db 0x07,10,'pop es' |
||
113 | db 0x0E,10,'push cs' |
||
114 | db 0x16,10,'push ss' |
||
115 | db 0x17,10,'pop ss' |
||
116 | db 0x1E,10,'push ds' |
||
117 | db 0x1F,10,'pop ds' |
||
118 | db 0x27,3,'daa' |
||
119 | db 0x2F,3,'das' |
||
120 | db 0x37,3,'aaa' |
||
121 | db 0x3F,3,'aas' |
||
122 | db 0x60,6,0,'pusha' |
||
123 | db 0x61,5,0,'popa' |
||
124 | db 0x90,3,'nop' |
||
125 | db 0x9B,5,'fwait' |
||
126 | db 0x9C,6,0,'pushf' |
||
127 | db 0x9D,5,0,'popf' |
||
128 | db 0x9E,4,'sahf' |
||
129 | db 0x9F,4,'lahf' |
||
130 | db 0xA4,5,'movsb' |
||
131 | db 0xA5,5,0,'movs' |
||
132 | db 0xA6,5,'cmpsb' |
||
133 | db 0xA7,5,0,'cmps' |
||
134 | db 0xAA,5,'stosb' |
||
135 | db 0xAB,5,0,'stos' |
||
136 | db 0xAC,5,'lodsb' |
||
137 | db 0xAD,5,0,'lods' |
||
138 | db 0xAE,5,'scasb' |
||
139 | db 0xAF,5,0,'scas' |
||
140 | db 0xC3,3,'ret' |
||
141 | db 0xC9,5,'leave' |
||
142 | db 0xCC,4,'int3' |
||
143 | db 0xF0,4,'lock' |
||
144 | db 0xF5,3,'cmc' |
||
145 | db 0xF8,3,'clc' |
||
146 | db 0xF9,3,'stc' |
||
147 | db 0xFA,3,'cli' |
||
148 | db 0xFB,3,'sti' |
||
149 | db 0xFC,3,'cld' |
||
150 | db 0xFD,3,'std' |
||
151 | |||
152 | cmd2: |
||
153 | db 0x05,7,'syscall' |
||
154 | db 0x06,4,'clts' |
||
155 | db 0x31,5,'rdtsc' |
||
156 | db 0x34,8,'sysenter' |
||
157 | db 0xA2,5,'cpuid' |
||
158 | db 0x77,4,'emms' |
||
159 | |||
160 | endg |
||
161 | jmp @f |
||
162 | |||
163 | ;----------------------------------------------------------------------------- |
||
164 | |||
165 | ccpuid: |
||
166 | crdtsc: |
||
167 | cemms: |
||
168 | cop0_F: |
||
169 | mov esi, cmd2 |
||
170 | |||
171 | @@: |
||
172 | cmp al, [esi] |
||
173 | jz .found |
||
174 | inc esi |
||
175 | movzx edx, byte [esi] |
||
176 | inc esi |
||
177 | add esi, edx |
||
178 | jmp @b |
||
179 | |||
180 | .found: |
||
181 | inc esi |
||
182 | lodsb |
||
183 | cmp byte [esi], 0 |
||
184 | jz @f |
||
185 | movzx ecx, al |
||
186 | |||
187 | disasm_1: |
||
188 | rep movsb |
||
189 | and byte [edi], 0 |
||
190 | ret |
||
191 | |||
192 | @@: |
||
193 | mov dl, ch |
||
194 | movzx ecx, al |
||
195 | dec ecx |
||
196 | inc esi |
||
197 | rep movsb |
||
198 | test dl, 1 |
||
199 | mov al, 'w' |
||
200 | jnz @f |
||
201 | mov al, 'd' |
||
202 | |||
203 | @@: |
||
204 | stosb |
||
205 | and byte [edi], 0 |
||
206 | ret |
||
207 | |||
208 | c67: |
||
209 | or ch, 2 |
||
210 | jmp disasm_loop1 |
||
211 | |||
212 | c66: |
||
213 | or ch, 1 |
||
214 | jmp disasm_loop1 |
||
215 | |||
216 | ;----------------------------------------------------------------------------- |
||
217 | |||
218 | cxlat: |
||
219 | cunk: |
||
220 | cerr: |
||
221 | mov eax, '???' |
||
222 | stosd |
||
223 | clc |
||
224 | ret |
||
225 | |||
226 | cF: |
||
227 | call disasm_get_byte |
||
228 | jmp dword [disasm_table_2 + eax*4] |
||
229 | |||
230 | ;----------------------------------------------------------------------------- |
||
231 | ; Parse operand prefixes |
||
232 | |||
233 | crep: |
||
234 | push [disasm_cur_pos] |
||
235 | call disasm_get_byte |
||
236 | cmp al, 0x0F |
||
237 | jz .sse |
||
238 | mov dl, al |
||
239 | mov eax, 'rep ' |
||
240 | stosd |
||
241 | mov al, dl |
||
242 | |||
243 | @@: |
||
244 | and eax, not 1 |
||
245 | cmp al, 0x66 |
||
246 | jnz @f |
||
247 | call disasm_get_byte |
||
248 | mov dl, al |
||
249 | jmp @b |
||
250 | |||
251 | @@: |
||
252 | cmp al, 0xA6 |
||
253 | jz .repz |
||
254 | cmp al, 0xAE |
||
255 | jz .repz |
||
256 | cmp al, 0xA4 |
||
257 | jz .prefix |
||
258 | cmp al, 0xAA |
||
259 | jz .prefix |
||
260 | cmp al, 0xAC |
||
261 | jz .prefix |
||
262 | cmp al, 0x6C |
||
263 | jz .prefix |
||
264 | cmp al, 0x6E |
||
265 | jz .prefix |
||
266 | |||
267 | .noprefix: |
||
268 | pop [disasm_cur_pos] |
||
269 | and byte [edi-1], 0 |
||
270 | ret |
||
271 | |||
272 | .repz: |
||
273 | mov byte [edi-1], 'z' |
||
274 | mov al, ' ' |
||
275 | stosb |
||
276 | |||
277 | .prefix: |
||
278 | pop [disasm_cur_pos] |
||
279 | jmp disasm_loop1 |
||
280 | |||
281 | .sse: |
||
282 | pop eax |
||
283 | call disasm_get_byte |
||
284 | |||
285 | ;----------------------------------------------------------------------------- |
||
286 | |||
287 | iglobal |
||
288 | rep_sse_cmds: |
||
289 | db 0x58,3,'add' |
||
290 | db 0xC2,3,'cmp' |
||
291 | db 0,0 |
||
292 | endg |
||
293 | mov esi, rep_sse_cmds+1 |
||
294 | |||
295 | @@: |
||
296 | movzx edx, byte [esi] |
||
297 | cmp al, [esi-1] |
||
298 | jz @f |
||
299 | lea esi, [esi+edx+2] |
||
300 | cmp byte [esi], 0 |
||
301 | jnz @b |
||
302 | sub [disasm_cur_pos], 2 |
||
303 | mov eax, 'rep' |
||
304 | stosd |
||
305 | ret |
||
306 | |||
307 | @@: |
||
308 | push ecx |
||
309 | mov ecx, edx |
||
310 | inc esi |
||
311 | rep movsb |
||
312 | pop ecx |
||
313 | mov al, 's' |
||
314 | stosb |
||
315 | jmp rep_sse_final |
||
316 | |||
317 | ;----------------------------------------------------------------------------- |
||
318 | |||
319 | crepnz: |
||
320 | call disasm_get_byte |
||
321 | cmp al, 0x0F |
||
322 | jz .sse |
||
323 | mov dl, al |
||
324 | mov eax, 'repn' |
||
325 | stosd |
||
326 | mov al, 'z' |
||
327 | stosb |
||
328 | mov al, ' ' |
||
329 | stosb |
||
330 | movzx eax, dl |
||
331 | cmp al, 0x6C |
||
332 | jb crep.noprefix |
||
333 | cmp al, 0x6F |
||
334 | jbe .prefix |
||
335 | cmp al, 0xA4 |
||
336 | jb crep.noprefix |
||
337 | cmp al, 0xA7 |
||
338 | jbe .prefix |
||
339 | cmp al, 0xAA |
||
340 | jb crep.noprefix |
||
341 | cmp al, 0xAF |
||
342 | ja crep.noprefix |
||
343 | |||
344 | .prefix: |
||
345 | jmp cop0 |
||
346 | |||
347 | .sse: |
||
348 | call disasm_get_byte |
||
349 | mov esi, rep_sse_cmds+1 |
||
350 | |||
351 | @@: |
||
352 | movzx edx, byte [esi] |
||
353 | cmp al, [esi-1] |
||
354 | jz .found0 |
||
355 | lea esi, [esi+edx+2] |
||
356 | cmp byte [esi], 0 |
||
357 | jnz @b |
||
358 | mov esi, sse_cmds2+1 |
||
359 | |||
360 | @@: |
||
361 | movzx edx, byte [esi] |
||
362 | cmp al, [esi-1] |
||
363 | jz .found1 |
||
364 | lea esi, [esi+edx+2] |
||
365 | cmp byte [esi], 0 |
||
366 | jnz @b |
||
367 | sub [disasm_cur_pos], 2 |
||
368 | mov eax, 'repn' |
||
369 | stosd |
||
370 | mov al, 'z' |
||
371 | stosb |
||
372 | and byte [edi], 0 |
||
373 | ret |
||
374 | |||
375 | .found0: |
||
376 | push ecx |
||
377 | mov ecx, edx |
||
378 | inc esi |
||
379 | rep movsb |
||
380 | pop ecx |
||
381 | mov al, 's' |
||
382 | stosb |
||
383 | mov al, 'd' |
||
384 | jmp rep_sse_final |
||
385 | |||
386 | .found1: |
||
387 | push ecx |
||
388 | mov ecx, edx |
||
389 | inc esi |
||
390 | rep movsb |
||
391 | pop ecx |
||
392 | mov al, 'p' |
||
393 | stosb |
||
394 | mov al, 's' |
||
395 | |||
396 | rep_sse_final: |
||
397 | stosb |
||
398 | push ecx |
||
399 | push 5 |
||
400 | pop ecx |
||
401 | sub ecx, edx |
||
402 | adc ecx, 1 |
||
403 | mov al, ' ' |
||
404 | rep stosb |
||
405 | pop ecx |
||
406 | or ch, 1 |
||
407 | jmp disasm_mmx1 |
||
408 | |||
409 | ;----------------------------------------------------------------------------- |
||
410 | |||
411 | macro disasm_set_modew |
||
412 | { |
||
413 | test al, 1 |
||
414 | jz @f |
||
415 | or ch, 80h |
||
416 | @@: |
||
417 | } |
||
418 | |||
419 | ;----------------------------------------------------------------------------- |
||
420 | |||
421 | cmov2: |
||
422 | disasm_set_modew |
||
423 | ; mov r/m,i |
||
424 | call disasm_get_byte |
||
425 | dec [disasm_cur_pos] |
||
426 | test al, 00111000b |
||
427 | jnz cunk |
||
428 | mov eax, 'mov ' |
||
429 | stosd |
||
430 | mov eax, ' ' |
||
431 | stosd |
||
432 | call disasm_readrmop |
||
433 | mov ax, ', ' |
||
434 | stosw |
||
435 | xor eax, eax |
||
436 | test ch, 80h |
||
437 | jnz .1 |
||
438 | call disasm_get_byte |
||
439 | jmp .3 |
||
440 | |||
441 | .1: |
||
442 | test ch, 1 |
||
443 | jnz .2 |
||
444 | call disasm_get_dword |
||
445 | jmp .3 |
||
446 | |||
447 | .2: |
||
448 | call disasm_get_word |
||
449 | |||
450 | .3: |
||
451 | call disasm_write_num |
||
452 | and byte [edi], 0 |
||
453 | ret |
||
454 | |||
455 | ;----------------------------------------------------------------------------- |
||
456 | |||
457 | cret2: |
||
458 | mov eax, 'ret ' |
||
459 | stosd |
||
460 | mov eax, ' ' |
||
461 | stosd |
||
462 | xor eax, eax |
||
463 | jmp cmov2.2 |
||
464 | |||
465 | ;----------------------------------------------------------------------------- |
||
466 | |||
467 | disasm_write_num: |
||
468 | push esi |
||
469 | cmp eax, 0x80 |
||
470 | jl .nosymb |
||
471 | lea esi, [eax-1] |
||
472 | test eax, esi |
||
473 | jz .nosymb |
||
474 | call find_symbol |
||
475 | jc .nosymb |
||
476 | |||
477 | @@: |
||
478 | lodsb |
||
479 | test al, al |
||
480 | jz @f |
||
481 | stosb |
||
482 | jmp @b |
||
483 | |||
484 | @@: |
||
485 | pop esi |
||
486 | ret |
||
487 | |||
488 | .nosymb: |
||
489 | pop esi |
||
490 | push ecx eax |
||
491 | inc edi |
||
492 | |||
493 | @@: |
||
494 | mov ecx, eax |
||
495 | shr eax, 4 |
||
496 | jz @f |
||
497 | inc edi |
||
498 | jmp @b |
||
499 | |||
500 | @@: |
||
501 | pop eax |
||
502 | cmp ecx, 10 |
||
503 | jb @f |
||
504 | inc edi |
||
505 | |||
506 | @@: |
||
507 | push edi eax |
||
508 | |||
509 | @@: |
||
510 | mov ecx, eax |
||
511 | and al, 0xF |
||
512 | cmp al, 10 |
||
513 | sbb al, 69h |
||
514 | das |
||
515 | dec edi |
||
516 | mov [edi], al |
||
517 | mov eax, ecx |
||
518 | shr eax, 4 |
||
519 | jnz @b |
||
520 | cmp ecx, 10 |
||
521 | jb @f |
||
522 | mov byte [edi-1], '0' |
||
523 | |||
524 | @@: |
||
525 | pop eax edi ecx |
||
526 | cmp eax, 10 |
||
527 | jb @f |
||
528 | mov byte [edi], 'h' |
||
529 | inc edi |
||
530 | |||
531 | @@: |
||
532 | ret |
||
533 | |||
534 | ;----------------------------------------------------------------------------- |
||
535 | |||
536 | iglobal |
||
537 | label disasm_regs32 dword |
||
538 | label disasm_regs dword |
||
539 | db 'eax',0 |
||
540 | db 'ecx',0 |
||
541 | db 'edx',0 |
||
542 | db 'ebx',0 |
||
543 | db 'esp',0 |
||
544 | db 'ebp',0 |
||
545 | db 'esi',0 |
||
546 | db 'edi',0 |
||
547 | |||
548 | disasm_regs16 dw 'ax','cx','dx','bx','sp','bp','si','di' |
||
549 | disasm_regs8 dw 'al','cl','dl','bl','ah','ch','dh','bh' |
||
550 | disasm_scale db '1248' |
||
551 | endg |
||
552 | |||
553 | ;----------------------------------------------------------------------------- |
||
554 | |||
555 | disasm_readrmop: |
||
556 | call disasm_get_byte |
||
557 | test ch, 40h |
||
558 | jnz .skip_size |
||
559 | push eax |
||
560 | and al, 0xC0 |
||
561 | cmp al, 0xC0 |
||
562 | pop eax |
||
563 | jz .skip_size |
||
564 | test ch, 80h |
||
565 | jz .byte |
||
566 | test ch, 1 |
||
567 | jnz .word |
||
568 | mov dword [edi], 'dwor' |
||
569 | mov byte [edi+4], 'd' |
||
570 | inc edi |
||
571 | jmp @f |
||
572 | |||
573 | .byte: |
||
574 | test ch, 20h |
||
575 | jz .qb |
||
576 | mov byte [edi], 't' |
||
577 | inc edi |
||
578 | |||
579 | .qb: |
||
580 | mov dword [edi], 'byte' |
||
581 | jmp @f |
||
582 | |||
583 | .word: |
||
584 | test ch, 20h |
||
585 | jz .qw |
||
586 | mov byte [edi], 'q' |
||
587 | inc edi |
||
588 | |||
589 | .qw: |
||
590 | mov dword [edi], 'word' |
||
591 | |||
592 | @@: |
||
593 | mov byte [edi+4], ' ' |
||
594 | add edi, 5 |
||
595 | |||
596 | .skip_size: |
||
597 | test ch, 2 |
||
598 | jnz disasm_readrmop16 |
||
599 | push ecx |
||
600 | movzx ecx, al |
||
601 | and eax, 7 |
||
602 | shr ecx, 6 |
||
603 | jz .vmod0 |
||
604 | jp .vmod3 |
||
605 | mov byte [edi], '[' |
||
606 | inc edi |
||
607 | cmp al, 4 |
||
608 | jz .sib1 |
||
609 | mov eax, [disasm_regs+eax*4] |
||
610 | stosd |
||
611 | dec edi |
||
612 | jmp @f |
||
613 | |||
614 | .sib1: |
||
615 | call .parse_sib |
||
616 | |||
617 | @@: |
||
618 | mov al, '+' |
||
619 | stosb |
||
620 | dec ecx |
||
621 | jz .vmod1 |
||
622 | call disasm_get_dword |
||
623 | jmp @f |
||
624 | |||
625 | .vmod1: |
||
626 | call disasm_get_byte |
||
627 | movsx eax, al |
||
628 | |||
629 | @@: |
||
630 | test eax, eax |
||
631 | jns .2 |
||
632 | neg eax |
||
633 | mov byte [edi-1], '-' |
||
634 | |||
635 | .2: |
||
636 | call disasm_write_num |
||
637 | |||
638 | .2a: |
||
639 | mov al, ']' |
||
640 | stosb |
||
641 | pop ecx |
||
642 | ret |
||
643 | |||
644 | .vmod3: |
||
645 | pop ecx |
||
646 | test ch, 10h |
||
647 | jnz .vmod3_mmi |
||
648 | test ch, 80h |
||
649 | jz .vmod3_byte |
||
650 | test ch, 1 |
||
651 | jnz .vmod3_word |
||
652 | test ch, 20h |
||
653 | jnz .vmod3_sti |
||
654 | mov eax, [disasm_regs32+eax*4] |
||
655 | stosd |
||
656 | dec edi |
||
657 | ret |
||
658 | |||
659 | .vmod3_byte: |
||
660 | mov ax, [disasm_regs8+eax*2] |
||
661 | |||
662 | @@: |
||
663 | stosw |
||
664 | ret |
||
665 | |||
666 | .vmod3_word: |
||
667 | mov ax, [disasm_regs16+eax*2] |
||
668 | jmp @b |
||
669 | |||
670 | .vmod3_sti: |
||
671 | mov word [edi], 'st' |
||
672 | add al, '0' |
||
673 | mov byte [edi+2], al |
||
674 | add edi, 3 |
||
675 | ret |
||
676 | |||
677 | .vmod3_mmi: |
||
678 | |||
679 | disasm_write_mmreg = $ |
||
680 | |||
681 | test ch, 1 |
||
682 | jz @f |
||
683 | mov byte [edi], 'x' |
||
684 | inc edi |
||
685 | |||
686 | @@: |
||
687 | mov word [edi], 'mm' |
||
688 | add al, '0' |
||
689 | mov byte [edi+2], al |
||
690 | add edi, 3 |
||
691 | ret |
||
692 | |||
693 | .vmod0: |
||
694 | mov byte [edi], '[' |
||
695 | inc edi |
||
696 | cmp al, 4 |
||
697 | jz .sib2 |
||
698 | cmp al, 5 |
||
699 | jz .ofs32 |
||
700 | mov eax, [disasm_regs+eax*4] |
||
701 | stosd |
||
702 | mov byte [edi-1], ']' |
||
703 | pop ecx |
||
704 | ret |
||
705 | |||
706 | .ofs32: |
||
707 | call disasm_get_dword |
||
708 | jmp .2 |
||
709 | |||
710 | .sib2: |
||
711 | call .parse_sib |
||
712 | mov al, ']' |
||
713 | stosb |
||
714 | pop ecx |
||
715 | ret |
||
716 | |||
717 | .parse_sib: |
||
718 | call disasm_get_byte |
||
719 | push edx |
||
720 | mov dl, al |
||
721 | mov dh, 0 |
||
722 | and eax, 7 |
||
723 | cmp al, 5 |
||
724 | jnz @f |
||
725 | jecxz .sib0 |
||
726 | |||
727 | @@: |
||
728 | mov eax, [disasm_regs+eax*4] |
||
729 | stosd |
||
730 | dec edi |
||
731 | mov dh, 1 |
||
732 | |||
733 | .sib0: |
||
734 | mov al, dl |
||
735 | shr eax, 3 |
||
736 | and eax, 7 |
||
737 | cmp al, 4 |
||
738 | jz .sibret |
||
739 | test dh, dh |
||
740 | jz @f |
||
741 | mov byte [edi], '+' |
||
742 | inc edi |
||
743 | |||
744 | @@: |
||
745 | mov eax, [disasm_regs+eax*4] |
||
746 | stosd |
||
747 | dec edi |
||
748 | shr dl, 6 |
||
749 | jz @f |
||
750 | mov al, '*' |
||
751 | stosb |
||
752 | movzx eax, dl |
||
753 | mov al, [disasm_scale+eax] |
||
754 | stosb |
||
755 | |||
756 | @@: |
||
757 | .sibret: |
||
758 | test dh, dh |
||
759 | jnz .sibret2 |
||
760 | call disasm_get_dword |
||
761 | cmp byte [edi-1], '[' |
||
762 | jz @f |
||
763 | mov byte [edi], '+' |
||
764 | test eax, eax |
||
765 | jns .sibns |
||
766 | neg eax |
||
767 | mov byte [edi], '-' |
||
768 | |||
769 | .sibns: |
||
770 | inc edi |
||
771 | |||
772 | @@: |
||
773 | call disasm_write_num |
||
774 | |||
775 | .sibret2: |
||
776 | pop edx |
||
777 | ret |
||
778 | |||
779 | ;----------------------------------------------------------------------------- |
||
780 | |||
781 | iglobal |
||
782 | disasm_rm16_1 dd 'bxsi','bxdi','bpsi','bpdi' |
||
783 | disasm_rm16_2 dw 'si','di','bp','bx' |
||
784 | endg |
||
785 | |||
786 | ;----------------------------------------------------------------------------- |
||
787 | |||
788 | disasm_readrmop16: |
||
789 | push ecx |
||
790 | movzx ecx, al |
||
791 | and eax, 7 |
||
792 | shr ecx, 6 |
||
793 | jz .vmod0 |
||
794 | jp disasm_readrmop.vmod3 ; mod=3 is the same in 16- and 32-bit code |
||
795 | ; 1 or 2 |
||
796 | mov byte [edi], '[' |
||
797 | inc edi |
||
798 | cmp al, 4 |
||
799 | jae @f |
||
800 | mov eax, [disasm_rm16_1+eax*4] |
||
801 | stosw |
||
802 | mov al, '+' |
||
803 | stosb |
||
804 | shr eax, 16 |
||
805 | jmp .1 |
||
806 | |||
807 | @@: |
||
808 | mov eax, dword [disasm_rm16_2+eax*2-4*2] |
||
809 | |||
810 | .1: |
||
811 | stosw |
||
812 | mov al, '+' |
||
813 | stosb |
||
814 | xor eax, eax |
||
815 | dec ecx |
||
816 | jnz .2 |
||
817 | call disasm_get_byte |
||
818 | cbw |
||
819 | jmp @f |
||
820 | |||
821 | .2: |
||
822 | call disasm_get_word |
||
823 | |||
824 | @@: |
||
825 | test ax, ax |
||
826 | jns @f |
||
827 | mov byte [edi-1], '-' |
||
828 | neg ax |
||
829 | |||
830 | @@: |
||
831 | call disasm_write_num |
||
832 | |||
833 | .done1: |
||
834 | mov al, ']' |
||
835 | stosb |
||
836 | pop ecx |
||
837 | ret |
||
838 | |||
839 | .vmod0: |
||
840 | mov byte [edi], '[' |
||
841 | inc edi |
||
842 | cmp al, 6 |
||
843 | jz .ofs16 |
||
844 | cmp al, 4 |
||
845 | jae @f |
||
846 | mov eax, [disasm_rm16_1+eax*4] |
||
847 | stosw |
||
848 | mov al, '+' |
||
849 | stosb |
||
850 | shr eax, 16 |
||
851 | jmp .3 |
||
852 | |||
853 | @@: |
||
854 | mov eax, dword [disasm_rm16_2+eax*2-4*2] |
||
855 | |||
856 | .3: |
||
857 | stosw |
||
858 | jmp .done1 |
||
859 | |||
860 | .ofs16: |
||
861 | xor eax, eax |
||
862 | call disasm_get_word |
||
863 | call disasm_write_num |
||
864 | jmp .done1 |
||
865 | |||
866 | ;----------------------------------------------------------------------------- |
||
867 | |||
868 | cpush21: |
||
869 | mov eax, 'push' |
||
870 | stosd |
||
871 | mov eax, ' ' |
||
872 | stosd |
||
873 | |||
874 | disasm_i32: |
||
875 | call disasm_get_dword |
||
876 | call disasm_write_num |
||
877 | and byte [edi], 0 |
||
878 | ret |
||
879 | |||
880 | cpush22: |
||
881 | mov eax, 'push' |
||
882 | stosd |
||
883 | mov eax, ' ' |
||
884 | stosd |
||
885 | call disasm_get_byte |
||
886 | movsx eax, al |
||
887 | |||
888 | @@: |
||
889 | call disasm_write_num |
||
890 | and byte [edi], 0 |
||
891 | ret |
||
892 | |||
893 | ;----------------------------------------------------------------------------- |
||
894 | |||
895 | center: |
||
896 | mov eax, 'ente' |
||
897 | stosd |
||
898 | mov eax, 'r ' |
||
899 | stosd |
||
900 | xor eax, eax |
||
901 | call disasm_get_word |
||
902 | call disasm_write_num |
||
903 | mov al, ',' |
||
904 | stosb |
||
905 | mov al, ' ' |
||
906 | stosb |
||
907 | xor eax, eax |
||
908 | call disasm_get_byte |
||
909 | jmp @b |
||
910 | |||
911 | ;----------------------------------------------------------------------------- |
||
912 | |||
913 | cinc1: |
||
914 | ; inc reg32 |
||
915 | cdec1: |
||
916 | ; dec reg32 |
||
917 | cpush1: |
||
918 | ; push reg32 |
||
919 | cpop1: |
||
920 | ; pop reg32 |
||
921 | cbswap: |
||
922 | ; bswap reg32 |
||
923 | mov edx, eax |
||
924 | and edx, 7 |
||
925 | shr eax, 3 |
||
926 | sub al, 8 |
||
927 | mov esi, 'inc ' |
||
928 | jz @f |
||
929 | mov esi, 'dec ' |
||
930 | dec al |
||
931 | jz @f |
||
932 | mov esi, 'push' |
||
933 | dec al |
||
934 | jz @f |
||
935 | mov esi, 'pop ' |
||
936 | dec al |
||
937 | jz @f |
||
938 | mov esi, 'bswa' |
||
939 | |||
940 | @@: |
||
941 | xchg eax, esi |
||
942 | stosd |
||
943 | mov eax, ' ' |
||
944 | jz @f |
||
945 | mov al, 'p' |
||
946 | |||
947 | @@: |
||
948 | stosd |
||
949 | xchg eax, edx |
||
950 | call disasm_write_reg1632 |
||
951 | and byte [edi], 0 |
||
952 | ret |
||
953 | |||
954 | ;----------------------------------------------------------------------------- |
||
955 | |||
956 | cxchg1: |
||
957 | ; xchg eax,reg32 |
||
958 | and eax, 7 |
||
959 | xchg eax, edx |
||
960 | mov eax, 'xchg' |
||
961 | stosd |
||
962 | mov eax, ' ' |
||
963 | stosd |
||
964 | xor eax, eax |
||
965 | call disasm_write_reg1632 |
||
966 | mov ax, ', ' |
||
967 | stosw |
||
968 | xchg eax, edx |
||
969 | call disasm_write_reg1632 |
||
970 | and byte [edi], 0 |
||
971 | ret |
||
972 | |||
973 | cint: |
||
974 | mov eax, 'int ' |
||
975 | stosd |
||
976 | mov eax, ' ' |
||
977 | stosd |
||
978 | |||
979 | disasm_i8u: |
||
980 | xor eax, eax |
||
981 | call disasm_get_byte |
||
982 | call disasm_write_num |
||
983 | and byte [edi], 0 |
||
984 | ret |
||
985 | |||
986 | ;----------------------------------------------------------------------------- |
||
987 | |||
988 | cmov11: |
||
989 | ; mov r8,i8 |
||
990 | mov ecx, eax |
||
991 | mov eax, 'mov ' |
||
992 | stosd |
||
993 | mov eax, ' ' |
||
994 | stosd |
||
995 | and ecx, 7 |
||
996 | mov ax, [disasm_regs8+ecx*2] |
||
997 | stosw |
||
998 | mov ax, ', ' |
||
999 | stosw |
||
1000 | jmp disasm_i8u |
||
1001 | |||
1002 | ;----------------------------------------------------------------------------- |
||
1003 | |||
1004 | cmov12: |
||
1005 | ; mov r32,i32 |
||
1006 | xchg eax, edx |
||
1007 | mov eax, 'mov ' |
||
1008 | stosd |
||
1009 | mov eax, ' ' |
||
1010 | stosd |
||
1011 | xchg eax, edx |
||
1012 | and eax, 7 |
||
1013 | call disasm_write_reg1632 |
||
1014 | mov ax, ', ' |
||
1015 | stosw |
||
1016 | jmp cmov2.1 |
||
1017 | |||
1018 | ;----------------------------------------------------------------------------- |
||
1019 | |||
1020 | iglobal |
||
1021 | disasm_shifts dd 'rol ','ror ','rcl ','rcr ','shl ','shr ','sal ','sar ' |
||
1022 | endg |
||
1023 | |||
1024 | ;----------------------------------------------------------------------------- |
||
1025 | |||
1026 | cshift2: |
||
1027 | ; shift r/m,1 = D0/D1 |
||
1028 | cshift3: |
||
1029 | ; shift r/m,cl = D2/D3 |
||
1030 | disasm_set_modew |
||
1031 | mov dl, al |
||
1032 | call disasm_get_byte |
||
1033 | dec [disasm_cur_pos] |
||
1034 | shr al, 3 |
||
1035 | and eax, 7 |
||
1036 | mov eax, [disasm_shifts+eax*4] |
||
1037 | stosd |
||
1038 | mov eax, ' ' |
||
1039 | stosd |
||
1040 | call disasm_readrmop |
||
1041 | cmp dl, 0xD2 |
||
1042 | jb .s1 |
||
1043 | mov eax, ', cl' |
||
1044 | stosd |
||
1045 | and byte [edi], 0 |
||
1046 | ret |
||
1047 | |||
1048 | .s1: |
||
1049 | mov eax, ', 1' |
||
1050 | stosd |
||
1051 | clc |
||
1052 | ret |
||
1053 | |||
1054 | ;----------------------------------------------------------------------------- |
||
1055 | |||
1056 | cshift1: |
||
1057 | ; shift r/m,i8 = C0/C1 |
||
1058 | disasm_set_modew |
||
1059 | call disasm_get_byte |
||
1060 | dec [disasm_cur_pos] |
||
1061 | shr al, 3 |
||
1062 | and eax, 7 |
||
1063 | mov eax, [disasm_shifts+eax*4] |
||
1064 | stosd |
||
1065 | mov eax, ' ' |
||
1066 | stosd |
||
1067 | call disasm_readrmop |
||
1068 | mov ax, ', ' |
||
1069 | stosw |
||
1070 | jmp disasm_i8u |
||
1071 | |||
1072 | ;----------------------------------------------------------------------------- |
||
1073 | |||
1074 | caam: |
||
1075 | mov eax, 'aam ' |
||
1076 | jmp @f |
||
1077 | |||
1078 | caad: |
||
1079 | mov eax, 'aad ' |
||
1080 | |||
1081 | @@: |
||
1082 | stosd |
||
1083 | mov eax, ' ' |
||
1084 | stosd |
||
1085 | xor eax, eax |
||
1086 | call disasm_get_byte |
||
1087 | cmp al, 10 |
||
1088 | jz @f |
||
1089 | call disasm_write_num |
||
1090 | |||
1091 | @@: |
||
1092 | and byte [edi], 0 |
||
1093 | ret |
||
1094 | |||
1095 | ;----------------------------------------------------------------------------- |
||
1096 | |||
1097 | cmov3: |
||
1098 | ; A0: mov al,[ofs32] |
||
1099 | ; A1: mov ax/eax,[ofs32] |
||
1100 | ; A2: mov [ofs32],al |
||
1101 | ; A3: mov [ofs32],ax/eax |
||
1102 | mov edx, 'mov ' |
||
1103 | xchg eax, edx |
||
1104 | stosd |
||
1105 | mov eax, ' ' |
||
1106 | stosd |
||
1107 | test dl, 2 |
||
1108 | jnz .1 |
||
1109 | call .write_acc |
||
1110 | mov ax, ', ' |
||
1111 | stosw |
||
1112 | call .write_ofs32 |
||
1113 | jmp .2 |
||
1114 | |||
1115 | .1: |
||
1116 | call .write_ofs32 |
||
1117 | mov ax, ', ' |
||
1118 | stosw |
||
1119 | call .write_acc |
||
1120 | |||
1121 | .2: |
||
1122 | and byte [edi], 0 |
||
1123 | ret |
||
1124 | |||
1125 | .write_acc: |
||
1126 | test dl, 1 |
||
1127 | jz .8bit |
||
1128 | test ch, 1 |
||
1129 | jnz .16bit |
||
1130 | mov eax, 'eax' |
||
1131 | stosd |
||
1132 | dec edi |
||
1133 | ret |
||
1134 | |||
1135 | .16bit: |
||
1136 | mov ax, 'ax' |
||
1137 | stosw |
||
1138 | ret |
||
1139 | |||
1140 | .8bit: |
||
1141 | mov ax, 'al' |
||
1142 | stosw |
||
1143 | ret |
||
1144 | |||
1145 | .write_ofs32: |
||
1146 | mov al, '[' |
||
1147 | stosb |
||
1148 | call disasm_get_dword |
||
1149 | call disasm_write_num |
||
1150 | mov al, ']' |
||
1151 | stosb |
||
1152 | ret |
||
1153 | |||
1154 | ;----------------------------------------------------------------------------- |
||
1155 | |||
1156 | disasm_write_reg: |
||
1157 | test ch, 80h |
||
1158 | jnz disasm_write_reg1632 |
||
1159 | mov ax, [disasm_regs8+eax*2] |
||
1160 | stosw |
||
1161 | ret |
||
1162 | |||
1163 | ;----------------------------------------------------------------------------- |
||
1164 | |||
1165 | disasm_write_reg1632: |
||
1166 | test ch, 1 |
||
1167 | jnz @f |
||
1168 | mov eax, [disasm_regs32+eax*4] |
||
1169 | stosd |
||
1170 | dec edi |
||
1171 | ret |
||
1172 | |||
1173 | @@: |
||
1174 | mov ax, [disasm_regs16+eax*2] |
||
1175 | stosw |
||
1176 | ret |
||
1177 | |||
1178 | ;----------------------------------------------------------------------------- |
||
1179 | |||
1180 | ; 0F B6/B7 |
||
1181 | cmovzx: |
||
1182 | ; 0F BE/BF |
||
1183 | cmovsx: |
||
1184 | mov edx, eax |
||
1185 | disasm_set_modew |
||
1186 | mov eax, 'movz' |
||
1187 | cmp dl, 0xB8 |
||
1188 | jb @f |
||
1189 | mov eax, 'movs' |
||
1190 | |||
1191 | @@: |
||
1192 | stosd |
||
1193 | mov eax, 'x ' |
||
1194 | stosd |
||
1195 | call disasm_get_byte |
||
1196 | dec [disasm_cur_pos] |
||
1197 | shr al, 3 |
||
1198 | and eax, 7 |
||
1199 | call disasm_write_reg1632 |
||
1200 | mov ax, ', ' |
||
1201 | stosw |
||
1202 | or ch, 1 ; 2nd operand - 8 or 16 bits |
||
1203 | call disasm_readrmop |
||
1204 | and byte [edi], 0 |
||
1205 | ret |
||
1206 | |||
1207 | ;----------------------------------------------------------------------------- |
||
1208 | |||
1209 | iglobal |
||
1210 | disasm_op2cmds dd 'add ','or ','adc ','sbb ','and ','sub ','xor ','cmp ' |
||
1211 | endg |
||
1212 | |||
1213 | ;----------------------------------------------------------------------------- |
||
1214 | |||
1215 | cop21: |
||
1216 | disasm_set_modew |
||
1217 | mov esi, 'test' |
||
1218 | cmp al, 0A8h |
||
1219 | jae @f |
||
1220 | shr al, 3 |
||
1221 | and eax, 7 |
||
1222 | mov esi, [disasm_op2cmds+eax*4] |
||
1223 | |||
1224 | @@: |
||
1225 | xchg eax, esi |
||
1226 | stosd |
||
1227 | mov eax, ' ' |
||
1228 | stosd |
||
1229 | test ch, 80h |
||
1230 | jnz .1632 |
||
1231 | mov eax, 'al, ' |
||
1232 | stosd |
||
1233 | jmp disasm_i8u |
||
1234 | |||
1235 | .1632: |
||
1236 | test ch, 1 |
||
1237 | jnz .16 |
||
1238 | mov eax, 'eax,' |
||
1239 | stosd |
||
1240 | mov al, ' ' |
||
1241 | stosb |
||
1242 | call disasm_get_dword |
||
1243 | jmp .x |
||
1244 | |||
1245 | .16: |
||
1246 | mov eax, 'ax, ' |
||
1247 | stosd |
||
1248 | xor eax, eax |
||
1249 | call disasm_get_word |
||
1250 | |||
1251 | .x: |
||
1252 | call disasm_write_num |
||
1253 | and byte [edi], 0 |
||
1254 | ret |
||
1255 | |||
1256 | ;----------------------------------------------------------------------------- |
||
1257 | |||
1258 | carpl: |
||
1259 | xor edx, edx |
||
1260 | or ch, 0C1h |
||
1261 | mov eax, 'arpl' |
||
1262 | jmp cop22.d2 |
||
1263 | |||
1264 | ;----------------------------------------------------------------------------- |
||
1265 | |||
1266 | ccmpxchg: |
||
1267 | xor edx, edx |
||
1268 | disasm_set_modew |
||
1269 | or ch, 40h |
||
1270 | mov eax, 'cmpx' |
||
1271 | stosd |
||
1272 | mov eax, 'chg ' |
||
1273 | jmp cop22.d1 |
||
1274 | |||
1275 | ;----------------------------------------------------------------------------- |
||
1276 | |||
1277 | cbsf: |
||
1278 | cbsr: |
||
1279 | or ch, 80h |
||
1280 | |||
1281 | ;----------------------------------------------------------------------------- |
||
1282 | |||
1283 | cop22: |
||
1284 | disasm_set_modew |
||
1285 | or ch, 40h |
||
1286 | mov edx, eax |
||
1287 | mov esi, 'lea ' |
||
1288 | cmp al, 8Dh |
||
1289 | jz @f |
||
1290 | mov esi, 'imul' |
||
1291 | cmp al, 0xAF |
||
1292 | jz @f |
||
1293 | mov esi, 'bsf ' |
||
1294 | cmp al, 0BCh |
||
1295 | jz @f |
||
1296 | mov esi, 'bsr ' |
||
1297 | cmp al, 0BDh |
||
1298 | jz @f |
||
1299 | mov esi, 'mov ' |
||
1300 | cmp al, 88h |
||
1301 | jae @f |
||
1302 | mov esi, 'xchg' |
||
1303 | cmp al, 86h |
||
1304 | jae @f |
||
1305 | mov esi, 'test' |
||
1306 | cmp al, 84h |
||
1307 | jae @f |
||
1308 | shr al, 3 |
||
1309 | and eax, 7 |
||
1310 | mov esi, [disasm_op2cmds+eax*4] |
||
1311 | |||
1312 | @@: |
||
1313 | xchg eax, esi |
||
1314 | |||
1315 | .d2: |
||
1316 | stosd |
||
1317 | mov eax, ' ' |
||
1318 | |||
1319 | .d1: |
||
1320 | stosd |
||
1321 | call disasm_get_byte |
||
1322 | dec [disasm_cur_pos] |
||
1323 | shr al, 3 |
||
1324 | and eax, 7 |
||
1325 | cmp dl, 0x8D |
||
1326 | jz @f |
||
1327 | cmp dl, 0x86 |
||
1328 | jz @f |
||
1329 | cmp dl, 0x87 |
||
1330 | jz @f |
||
1331 | cmp dl, 0xBC |
||
1332 | jz @f |
||
1333 | cmp dl, 0xBD |
||
1334 | jz @f |
||
1335 | test dl, 2 |
||
1336 | jz .d0 |
||
1337 | |||
1338 | @@: |
||
1339 | call disasm_write_reg |
||
1340 | mov ax, ', ' |
||
1341 | stosw |
||
1342 | call disasm_readrmop |
||
1343 | and byte [edi], 0 |
||
1344 | ret |
||
1345 | |||
1346 | .d0: |
||
1347 | push eax |
||
1348 | call disasm_readrmop |
||
1349 | mov ax, ', ' |
||
1350 | stosw |
||
1351 | pop eax |
||
1352 | call disasm_write_reg |
||
1353 | and byte [edi], 0 |
||
1354 | ret |
||
1355 | |||
1356 | ;----------------------------------------------------------------------------- |
||
1357 | |||
1358 | cbound: |
||
1359 | mov edx, eax |
||
1360 | mov eax, 'boun' |
||
1361 | stosd |
||
1362 | mov eax, 'd ' |
||
1363 | or ch, 0xC0 |
||
1364 | jmp cop22.d1 |
||
1365 | |||
1366 | ;----------------------------------------------------------------------------- |
||
1367 | |||
1368 | cop23: |
||
1369 | disasm_set_modew |
||
1370 | xchg eax, edx |
||
1371 | call disasm_get_byte |
||
1372 | dec [disasm_cur_pos] |
||
1373 | shr eax, 3 |
||
1374 | and eax, 7 |
||
1375 | mov eax, [disasm_op2cmds+eax*4] |
||
1376 | |||
1377 | ctest: |
||
1378 | stosd |
||
1379 | mov eax, ' ' |
||
1380 | stosd |
||
1381 | call disasm_readrmop |
||
1382 | mov ax, ', ' |
||
1383 | stosw |
||
1384 | test ch, 80h |
||
1385 | jz .i8 |
||
1386 | cmp dl, 83h |
||
1387 | jz .i8 |
||
1388 | test ch, 1 |
||
1389 | jnz .i16 |
||
1390 | call disasm_get_dword |
||
1391 | jmp .ic |
||
1392 | |||
1393 | .i8: |
||
1394 | xor eax, eax |
||
1395 | call disasm_get_byte |
||
1396 | cmp dl, 83h |
||
1397 | jnz .ic |
||
1398 | movsx eax, al |
||
1399 | jmp .ic |
||
1400 | |||
1401 | .i16: |
||
1402 | xor eax, eax |
||
1403 | call disasm_get_word |
||
1404 | |||
1405 | .ic: |
||
1406 | call disasm_write_num |
||
1407 | and byte [edi], 0 |
||
1408 | ret |
||
1409 | |||
1410 | ;----------------------------------------------------------------------------- |
||
1411 | |||
1412 | cmovcc: |
||
1413 | or ch, 0C0h |
||
1414 | and eax, 0xF |
||
1415 | mov ax, [disasm_jcc_codes + eax*2] |
||
1416 | mov dword [edi], 'cmov' |
||
1417 | add edi, 4 |
||
1418 | stosw |
||
1419 | mov ax, ' ' |
||
1420 | stosw |
||
1421 | call disasm_get_byte |
||
1422 | dec [disasm_cur_pos] |
||
1423 | shr eax, 3 |
||
1424 | and eax, 7 |
||
1425 | call disasm_write_reg1632 |
||
1426 | mov ax, ', ' |
||
1427 | stosw |
||
1428 | call disasm_readrmop |
||
1429 | and byte [edi], 0 |
||
1430 | ret |
||
1431 | |||
1432 | ; btx r/m,i8 = 0F BA |
||
1433 | cbtx1: |
||
1434 | or ch, 80h |
||
1435 | call disasm_get_byte |
||
1436 | dec [disasm_cur_pos] |
||
1437 | shr al, 3 |
||
1438 | and eax, 7 |
||
1439 | cmp al, 4 |
||
1440 | jb cunk |
||
1441 | mov eax, [btx1codes+eax*4-4*4] |
||
1442 | stosd |
||
1443 | mov eax, ' ' |
||
1444 | stosd |
||
1445 | call disasm_readrmop |
||
1446 | mov ax, ', ' |
||
1447 | stosw |
||
1448 | jmp disasm_i8u |
||
1449 | |||
1450 | ;----------------------------------------------------------------------------- |
||
1451 | |||
1452 | iglobal |
||
1453 | btx1codes dd 'bt ','bts ','btr ','btc ' |
||
1454 | endg |
||
1455 | |||
1456 | ;----------------------------------------------------------------------------- |
||
1457 | |||
1458 | ; btx r/m,r = 0F 101xx011 (A3,AB,B3,BB) |
||
1459 | cbtx2: |
||
1460 | shr al, 3 |
||
1461 | and eax, 3 |
||
1462 | mov eax, [btx1codes+eax*4] |
||
1463 | stosd |
||
1464 | mov eax, ' ' |
||
1465 | stosd |
||
1466 | or ch, 0xC0 |
||
1467 | call disasm_get_byte |
||
1468 | dec [disasm_cur_pos] |
||
1469 | shr al, 3 |
||
1470 | and eax, 7 |
||
1471 | push eax |
||
1472 | call disasm_readrmop |
||
1473 | mov ax, ', ' |
||
1474 | stosw |
||
1475 | pop eax |
||
1476 | call disasm_write_reg1632 |
||
1477 | and byte [edi], 0 |
||
1478 | ret |
||
1479 | |||
1480 | ;----------------------------------------------------------------------------- |
||
1481 | |||
1482 | csetcc: |
||
1483 | and eax, 0xF |
||
1484 | mov ax, [disasm_jcc_codes + eax*2] |
||
1485 | mov dword [edi], 'setc' |
||
1486 | add edi, 3 |
||
1487 | stosw |
||
1488 | mov ax, ' ' |
||
1489 | stosw |
||
1490 | stosb |
||
1491 | call disasm_readrmop |
||
1492 | and byte [edi], 0 |
||
1493 | ret |
||
1494 | |||
1495 | ;----------------------------------------------------------------------------- |
||
1496 | |||
1497 | iglobal |
||
1498 | disasm_jcc_codes dw 'o ','no','b ','ae','z ','nz','be','a ','s ','ns','p ','np','l ','ge','le','g ' |
||
1499 | endg |
||
1500 | |||
1501 | ;----------------------------------------------------------------------------- |
||
1502 | |||
1503 | cjcc1: |
||
1504 | cjmp2: |
||
1505 | cmp al, 0xEB |
||
1506 | jz .1 |
||
1507 | and eax, 0xF |
||
1508 | mov ax, [disasm_jcc_codes + eax*2] |
||
1509 | jmp .2 |
||
1510 | |||
1511 | .1: |
||
1512 | mov ax, 'mp' |
||
1513 | |||
1514 | .2: |
||
1515 | mov byte [edi], 'j' |
||
1516 | inc edi |
||
1517 | stosw |
||
1518 | mov eax, ' ' |
||
1519 | stosb |
||
1520 | stosd |
||
1521 | call disasm_get_byte |
||
1522 | movsx eax, al |
||
1523 | |||
1524 | disasm_rva: |
||
1525 | add eax, [disasm_cur_pos] |
||
1526 | call disasm_write_num |
||
1527 | and byte [edi], 0 |
||
1528 | ret |
||
1529 | |||
1530 | ;----------------------------------------------------------------------------- |
||
1531 | |||
1532 | ccall1: |
||
1533 | cjmp1: |
||
1534 | cjcc2: |
||
1535 | mov edx, 'call' |
||
1536 | cmp al, 0xE8 |
||
1537 | jz @f |
||
1538 | mov edx, 'jmp ' |
||
1539 | cmp al, 0xE9 |
||
1540 | jz @f |
||
1541 | mov edx, ' ' |
||
1542 | and eax, 0xF |
||
1543 | mov dx, [disasm_jcc_codes+eax*2] |
||
1544 | shl edx, 8 |
||
1545 | mov dl, 'j' |
||
1546 | |||
1547 | @@: |
||
1548 | xchg eax, edx |
||
1549 | stosd |
||
1550 | mov eax, ' ' |
||
1551 | stosd |
||
1552 | test ch, 1 |
||
1553 | jnz @f |
||
1554 | call disasm_get_dword |
||
1555 | jmp disasm_rva |
||
1556 | |||
1557 | @@: |
||
1558 | call disasm_get_word |
||
1559 | add eax, [disasm_cur_pos] |
||
1560 | and eax, 0xFFFF |
||
1561 | call disasm_write_num |
||
1562 | and byte [edi], 0 |
||
1563 | ret |
||
1564 | |||
1565 | ;----------------------------------------------------------------------------- |
||
1566 | |||
1567 | ccallf: |
||
1568 | mov eax, 'call' |
||
1569 | stosd |
||
1570 | mov eax, ' ' |
||
1571 | stosd |
||
1572 | mov al, 'd' |
||
1573 | test ch, 1 |
||
1574 | jnz @f |
||
1575 | mov al, 'p' |
||
1576 | |||
1577 | @@: |
||
1578 | stosb |
||
1579 | mov eax, 'word' |
||
1580 | stosd |
||
1581 | mov al, ' ' |
||
1582 | stosb |
||
1583 | test ch, 1 |
||
1584 | jnz .1 |
||
1585 | call disasm_get_dword |
||
1586 | jmp .2 |
||
1587 | |||
1588 | .1: |
||
1589 | xor eax, eax |
||
1590 | call disasm_get_word |
||
1591 | |||
1592 | .2: |
||
1593 | push eax |
||
1594 | xor eax, eax |
||
1595 | call disasm_get_word |
||
1596 | call disasm_write_num |
||
1597 | mov al, ':' |
||
1598 | stosb |
||
1599 | pop eax |
||
1600 | call disasm_write_num |
||
1601 | and byte [edi], 0 |
||
1602 | ret |
||
1603 | |||
1604 | ;----------------------------------------------------------------------------- |
||
1605 | |||
1606 | iglobal |
||
1607 | op11codes dd 'test',0,'not ','neg ','mul ','imul','div ','idiv' |
||
1608 | op12codes dd 'inc ','dec ','call',0,'jmp ',0,'push',0 |
||
1609 | endg |
||
1610 | |||
1611 | ;----------------------------------------------------------------------------- |
||
1612 | |||
1613 | cop1: |
||
1614 | disasm_set_modew |
||
1615 | xchg eax, edx |
||
1616 | call disasm_get_byte |
||
1617 | movzx esi, al |
||
1618 | dec [disasm_cur_pos] |
||
1619 | shr al, 3 |
||
1620 | and eax, 7 |
||
1621 | cmp dl, 0xFE |
||
1622 | jnz @f |
||
1623 | cmp al, 1 |
||
1624 | jbe @f |
||
1625 | |||
1626 | .0: |
||
1627 | inc [disasm_cur_pos] |
||
1628 | jmp cunk |
||
1629 | |||
1630 | @@: |
||
1631 | and edx, 8 |
||
1632 | add eax, edx |
||
1633 | cmp al, 11 |
||
1634 | jz .callfar |
||
1635 | cmp al, 13 |
||
1636 | jz .jmpfar |
||
1637 | mov eax, [op11codes+eax*4] |
||
1638 | test eax, eax |
||
1639 | jz .0 |
||
1640 | cmp eax, 'test' |
||
1641 | jz ctest |
||
1642 | |||
1643 | .2: |
||
1644 | stosd |
||
1645 | mov eax, ' ' |
||
1646 | stosd |
||
1647 | call disasm_readrmop |
||
1648 | and byte [edi], 0 |
||
1649 | ret |
||
1650 | |||
1651 | .callfar: |
||
1652 | mov eax, 'call' |
||
1653 | |||
1654 | .1: |
||
1655 | cmp esi, 0xC0 |
||
1656 | jae .0 |
||
1657 | stosd |
||
1658 | mov eax, ' ' |
||
1659 | stosd |
||
1660 | mov eax, 'far ' |
||
1661 | stosd |
||
1662 | mov al, 'd' |
||
1663 | test ch, 1 |
||
1664 | jnz @f |
||
1665 | mov al, 'p' |
||
1666 | |||
1667 | @@: |
||
1668 | stosb |
||
1669 | or ch, 1 |
||
1670 | call disasm_readrmop |
||
1671 | and byte [edi], 0 |
||
1672 | ret |
||
1673 | |||
1674 | .jmpfar: |
||
1675 | mov eax, 'jmp ' |
||
1676 | jmp .1 |
||
1677 | |||
1678 | ;----------------------------------------------------------------------------- |
||
1679 | |||
1680 | cpop2: |
||
1681 | or ch, 80h |
||
1682 | call disasm_get_byte |
||
1683 | dec [disasm_cur_pos] |
||
1684 | test al, 00111000b |
||
1685 | jnz cunk |
||
1686 | mov eax, 'pop ' |
||
1687 | jmp cop1.2 |
||
1688 | |||
1689 | ;----------------------------------------------------------------------------- |
||
1690 | |||
1691 | cloopnz: |
||
1692 | mov eax, 'loop' |
||
1693 | stosd |
||
1694 | mov eax, 'nz ' |
||
1695 | test ch, 2 |
||
1696 | jz @f |
||
1697 | mov ah, 'w' |
||
1698 | |||
1699 | @@: |
||
1700 | jmp cloop.cmn |
||
1701 | |||
1702 | cloopz: |
||
1703 | mov eax, 'loop' |
||
1704 | stosd |
||
1705 | mov eax, 'z ' |
||
1706 | test ch, 2 |
||
1707 | jz @f |
||
1708 | mov eax, 'zw ' |
||
1709 | |||
1710 | @@: |
||
1711 | jmp cloop.cmn |
||
1712 | |||
1713 | cjcxz: |
||
1714 | cloop: |
||
1715 | cmp al, 0xE2 |
||
1716 | jz .loop |
||
1717 | test ch, 2 |
||
1718 | jnz .jcxz |
||
1719 | mov eax, 'jecx' |
||
1720 | stosd |
||
1721 | mov eax, 'z ' |
||
1722 | jmp .cmn |
||
1723 | |||
1724 | .jcxz: |
||
1725 | mov eax, 'jcxz' |
||
1726 | stosd |
||
1727 | mov eax, ' ' |
||
1728 | jmp .cmn |
||
1729 | |||
1730 | .loop: |
||
1731 | mov eax, 'loop' |
||
1732 | stosd |
||
1733 | mov eax, ' ' |
||
1734 | test ch, 2 |
||
1735 | jz .cmn |
||
1736 | mov al, 'w' |
||
1737 | |||
1738 | .cmn: |
||
1739 | stosd |
||
1740 | call disasm_get_byte |
||
1741 | movsx eax, al |
||
1742 | add eax, [disasm_cur_pos] |
||
1743 | test ch, 1 |
||
1744 | jz @f |
||
1745 | and eax, 0xFFFF |
||
1746 | |||
1747 | ; @@: |
||
1748 | disasm_write_num_done: |
||
1749 | @@: |
||
1750 | call disasm_write_num |
||
1751 | and byte [edi], 0 |
||
1752 | ret |
||
1753 | |||
1754 | ;----------------------------------------------------------------------------- |
||
1755 | |||
1756 | ; imul r,r/m,i |
||
1757 | cimul1: |
||
1758 | or ch, 80h ; 32bit operation |
||
1759 | xchg eax, edx |
||
1760 | mov eax, 'imul' |
||
1761 | stosd |
||
1762 | mov eax, ' ' |
||
1763 | stosd |
||
1764 | call disasm_get_byte |
||
1765 | dec [disasm_cur_pos] |
||
1766 | shr al, 3 |
||
1767 | and eax, 7 |
||
1768 | call disasm_write_reg1632 |
||
1769 | mov ax, ', ' |
||
1770 | stosw |
||
1771 | call disasm_readrmop |
||
1772 | mov ax, ', ' |
||
1773 | stosw |
||
1774 | test ch, 1 |
||
1775 | jnz .16 |
||
1776 | cmp dl, 0x69 |
||
1777 | jz .op32 |
||
1778 | call disasm_get_byte |
||
1779 | movsx eax, al |
||
1780 | jmp disasm_write_num_done |
||
1781 | |||
1782 | .op32: |
||
1783 | call disasm_get_dword |
||
1784 | jmp disasm_write_num_done |
||
1785 | |||
1786 | .16: |
||
1787 | cmp dl, 0x69 |
||
1788 | jz .op16 |
||
1789 | call disasm_get_byte |
||
1790 | cbw |
||
1791 | jmp disasm_write_num_done |
||
1792 | |||
1793 | .op16: |
||
1794 | xor eax, eax |
||
1795 | call disasm_get_word |
||
1796 | jmp disasm_write_num_done |
||
1797 | |||
1798 | ;----------------------------------------------------------------------------- |
||
1799 | |||
1800 | cshld: |
||
1801 | cshrd: |
||
1802 | mov edx, 'shld' |
||
1803 | test al, 8 |
||
1804 | jz @f |
||
1805 | mov edx, 'shrd' |
||
1806 | |||
1807 | @@: |
||
1808 | xchg eax, edx |
||
1809 | stosd |
||
1810 | mov eax, ' ' |
||
1811 | stosd |
||
1812 | call disasm_get_byte |
||
1813 | dec [disasm_cur_pos] |
||
1814 | shr al, 3 |
||
1815 | and eax, 7 |
||
1816 | push eax |
||
1817 | or ch, 80h |
||
1818 | call disasm_readrmop |
||
1819 | mov ax, ', ' |
||
1820 | stosw |
||
1821 | pop eax |
||
1822 | call disasm_write_reg1632 |
||
1823 | mov ax, ', ' |
||
1824 | stosw |
||
1825 | test dl, 1 |
||
1826 | jz disasm_i8u |
||
1827 | mov ax, 'cl' |
||
1828 | stosw |
||
1829 | and byte [edi], 0 |
||
1830 | ret |
||
1831 | |||
1832 | ;----------------------------------------------------------------------------- |
||
1833 | |||
1834 | ccbw: |
||
1835 | mov eax, 'cbw ' |
||
1836 | test ch, 1 |
||
1837 | jnz @f |
||
1838 | mov eax, 'cwde' |
||
1839 | |||
1840 | @@: |
||
1841 | stosd |
||
1842 | and byte [edi], 0 |
||
1843 | ret |
||
1844 | |||
1845 | ccwd: |
||
1846 | mov eax, 'cwd ' |
||
1847 | test ch, 1 |
||
1848 | jnz @b |
||
1849 | mov eax, 'cdq ' |
||
1850 | jmp @b |
||
1851 | |||
1852 | ;----------------------------------------------------------------------------- |
||
1853 | |||
1854 | ccmpxchg8b: |
||
1855 | call disasm_get_byte |
||
1856 | cmp al, 0xC0 |
||
1857 | jae cerr |
||
1858 | shr al, 3 |
||
1859 | and al, 7 |
||
1860 | cmp al, 1 |
||
1861 | jnz cerr |
||
1862 | dec [disasm_cur_pos] |
||
1863 | mov eax, 'cmpx' |
||
1864 | stosd |
||
1865 | mov eax, 'chg8' |
||
1866 | stosd |
||
1867 | mov al, 'b' |
||
1868 | stosb |
||
1869 | mov al, ' ' |
||
1870 | stosb |
||
1871 | or ch, 40h |
||
1872 | call disasm_readrmop |
||
1873 | and byte [edi], 0 |
||
1874 | ret |
||
1875 | |||
1876 | ;----------------------------------------------------------------------------- |
||
1877 | |||
1878 | iglobal |
||
1879 | fpuD8 dd 'add ','mul ','com ','comp','sub ','subr','div ','divr' |
||
1880 | endg |
||
1881 | |||
1882 | ;----------------------------------------------------------------------------- |
||
1883 | |||
1884 | cD8: |
||
1885 | call disasm_get_byte |
||
1886 | dec [disasm_cur_pos] |
||
1887 | push eax |
||
1888 | shr al, 3 |
||
1889 | and eax, 7 |
||
1890 | mov byte [edi], 'f' |
||
1891 | inc edi |
||
1892 | xchg eax, edx |
||
1893 | mov eax, [fpuD8+edx*4] |
||
1894 | stosd |
||
1895 | mov ax, ' ' |
||
1896 | stosw |
||
1897 | stosb |
||
1898 | pop eax |
||
1899 | cmp dl, 2 |
||
1900 | jb .1 |
||
1901 | cmp dl, 3 |
||
1902 | jbe .2 |
||
1903 | |||
1904 | .1: |
||
1905 | cmp al, 0xC0 |
||
1906 | jb .2 |
||
1907 | mov eax, 'st0,' |
||
1908 | stosd |
||
1909 | mov al, ' ' |
||
1910 | stosb |
||
1911 | |||
1912 | .2: |
||
1913 | or ch, 80h or 20h |
||
1914 | and ch, not 1 |
||
1915 | call disasm_readrmop |
||
1916 | and byte [edi], 0 |
||
1917 | ret |
||
1918 | |||
1919 | ;----------------------------------------------------------------------------- |
||
1920 | |||
1921 | iglobal |
||
1922 | fpuD9_2: |
||
1923 | dq 'fchs ','fabs ',0,0,'ftst ','fxam ',0,0 |
||
1924 | db 'fld1 fldl2t fldl2e fldpi fldlg2 fldln2 fldz ' |
||
1925 | dq 0 |
||
1926 | db 'f2xm1 fyl2x fptan fpatan fxtract fprem1 fdecstp fincstp ' |
||
1927 | db 'fprem fyl2xp1 fsqrt fsincos frndint fscale fsin fcos ' |
||
1928 | fpuD9_fnop db 'fnop ' |
||
1929 | endg |
||
1930 | |||
1931 | ;----------------------------------------------------------------------------- |
||
1932 | |||
1933 | cD9: |
||
1934 | call disasm_get_byte |
||
1935 | sub al, 0xC0 |
||
1936 | jae .l1 |
||
1937 | dec [disasm_cur_pos] |
||
1938 | shr al, 3 |
||
1939 | and eax, 7 |
||
1940 | cmp al, 7 |
||
1941 | jnz @f |
||
1942 | mov eax, 'fnst' |
||
1943 | stosd |
||
1944 | mov eax, 'cw ' |
||
1945 | jmp .x1 |
||
1946 | |||
1947 | @@: |
||
1948 | cmp al, 5 |
||
1949 | jnz @f |
||
1950 | mov eax, 'fldc' |
||
1951 | stosd |
||
1952 | mov eax, 'w ' |
||
1953 | |||
1954 | .x1: |
||
1955 | stosd |
||
1956 | or ch, 0C1h |
||
1957 | jmp .cmn |
||
1958 | |||
1959 | @@: |
||
1960 | mov edx, 'fld ' |
||
1961 | test al, al |
||
1962 | jz @f |
||
1963 | mov edx, 'fst ' |
||
1964 | cmp al, 2 |
||
1965 | jz @f |
||
1966 | mov edx, 'fstp' |
||
1967 | cmp al, 3 |
||
1968 | jnz cunk |
||
1969 | |||
1970 | @@: |
||
1971 | xchg eax, edx |
||
1972 | stosd |
||
1973 | mov eax, ' ' |
||
1974 | stosd |
||
1975 | or ch, 80h |
||
1976 | and ch, not 1 |
||
1977 | |||
1978 | .cmn: |
||
1979 | call disasm_readrmop |
||
1980 | and byte [edi], 0 |
||
1981 | ret |
||
1982 | |||
1983 | .l1: |
||
1984 | cmp al, 10h |
||
1985 | jae .l2 |
||
1986 | mov edx, 'fld ' |
||
1987 | cmp al, 8 |
||
1988 | jb @f |
||
1989 | mov edx, 'fxch' |
||
1990 | |||
1991 | @@: |
||
1992 | xchg eax, edx |
||
1993 | stosd |
||
1994 | mov eax, ' ' |
||
1995 | stosd |
||
1996 | xchg eax, edx |
||
1997 | and al, 7 |
||
1998 | add al, '0' |
||
1999 | shl eax, 16 |
||
2000 | mov ax, 'st' |
||
2001 | stosd |
||
2002 | clc |
||
2003 | ret |
||
2004 | |||
2005 | .l2: |
||
2006 | cmp al, 0x10 |
||
2007 | jnz @f |
||
2008 | mov esi, fpuD9_fnop |
||
2009 | jmp .l3 |
||
2010 | |||
2011 | @@: |
||
2012 | sub al, 0x20 |
||
2013 | jb cerr |
||
2014 | lea esi, [fpuD9_2+eax*8] |
||
2015 | cmp byte [esi], 0 |
||
2016 | jz cerr |
||
2017 | |||
2018 | .l3: |
||
2019 | movsd |
||
2020 | movsd |
||
2021 | and byte [edi-1], 0 |
||
2022 | ret |
||
2023 | |||
2024 | ;----------------------------------------------------------------------------- |
||
2025 | |||
2026 | cDA: |
||
2027 | call disasm_get_byte |
||
2028 | cmp al, 0xC0 |
||
2029 | jae cunk |
||
2030 | dec [disasm_cur_pos] |
||
2031 | shr al, 3 |
||
2032 | and eax, 7 |
||
2033 | mov word [edi], 'fi' |
||
2034 | inc edi |
||
2035 | inc edi |
||
2036 | mov eax, [fpuD8+eax*4] |
||
2037 | stosd |
||
2038 | mov ax, ' ' |
||
2039 | stosw |
||
2040 | or ch, 80h |
||
2041 | and ch, not 1 ; 32-bit operand |
||
2042 | call disasm_readrmop |
||
2043 | and byte [edi], 0 |
||
2044 | ret |
||
2045 | |||
2046 | ;----------------------------------------------------------------------------- |
||
2047 | |||
2048 | iglobal |
||
2049 | fpuDB dd 'ild ',0,'ist ','istp',0,'ld ',0,'stp ' |
||
2050 | endg |
||
2051 | |||
2052 | ;----------------------------------------------------------------------------- |
||
2053 | |||
2054 | cDB: |
||
2055 | call disasm_get_byte |
||
2056 | cmp al, 0xC0 |
||
2057 | jae .1 |
||
2058 | dec [disasm_cur_pos] |
||
2059 | shr al, 3 |
||
2060 | and eax, 7 |
||
2061 | xchg eax, edx |
||
2062 | mov eax, [fpuDB+edx*4] |
||
2063 | test eax, eax |
||
2064 | jz cerr |
||
2065 | mov byte [edi], 'f' |
||
2066 | inc edi |
||
2067 | stosd |
||
2068 | mov ax, ' ' |
||
2069 | stosw |
||
2070 | stosb |
||
2071 | or ch, 80h |
||
2072 | and ch, not 1 ; 32-bit operand |
||
2073 | cmp dl, 4 |
||
2074 | jb @f |
||
2075 | or ch, 20h |
||
2076 | and ch, not 80h ; 80-bit operand |
||
2077 | |||
2078 | @@: |
||
2079 | call disasm_readrmop |
||
2080 | and byte [edi], 0 |
||
2081 | ret |
||
2082 | |||
2083 | .1: |
||
2084 | cmp al, 0xE3 |
||
2085 | jnz cunk |
||
2086 | mov eax, 'fnin' |
||
2087 | stosd |
||
2088 | mov eax, 'it' |
||
2089 | stosd |
||
2090 | dec edi |
||
2091 | ret ; CF cleared |
||
2092 | |||
2093 | ;----------------------------------------------------------------------------- |
||
2094 | |||
2095 | iglobal |
||
2096 | fpuDC dd 'add ','mul ',0,0,'subr','sub ','divr','div ' |
||
2097 | endg |
||
2098 | |||
2099 | ;----------------------------------------------------------------------------- |
||
2100 | |||
2101 | cDC: |
||
2102 | call disasm_get_byte |
||
2103 | cmp al, 0xC0 |
||
2104 | jae .1 |
||
2105 | dec [disasm_cur_pos] |
||
2106 | shr al, 3 |
||
2107 | and eax, 7 |
||
2108 | mov byte [edi], 'f' |
||
2109 | inc edi |
||
2110 | mov eax, [fpuD8+eax*4] |
||
2111 | stosd |
||
2112 | mov ax, ' ' |
||
2113 | stosw |
||
2114 | stosb |
||
2115 | or ch, 0A1h ; qword |
||
2116 | call disasm_readrmop |
||
2117 | and byte [edi], 0 |
||
2118 | ret |
||
2119 | |||
2120 | .1: |
||
2121 | mov dl, al |
||
2122 | shr al, 3 |
||
2123 | and eax, 7 |
||
2124 | mov eax, [fpuDC+eax*4] |
||
2125 | test eax, eax |
||
2126 | jz cerr |
||
2127 | mov byte [edi], 'f' |
||
2128 | inc edi |
||
2129 | stosd |
||
2130 | mov eax, ' s' |
||
2131 | stosd |
||
2132 | mov al, 't' |
||
2133 | stosb |
||
2134 | and edx, 7 |
||
2135 | lea eax, [edx+'0'] |
||
2136 | stosb |
||
2137 | mov eax, ', st' |
||
2138 | stosd |
||
2139 | mov ax, '0' |
||
2140 | stosw |
||
2141 | ret ; CF cleared |
||
2142 | |||
2143 | ;----------------------------------------------------------------------------- |
||
2144 | |||
2145 | iglobal |
||
2146 | fpuDD dd 'fld ',0,'fst ','fstp',0,0,0,0 |
||
2147 | fpuDD_2 dq 'ffree ',0,'fst ','fstp ','fucom ','fucomp ',0,0 |
||
2148 | endg |
||
2149 | |||
2150 | ;----------------------------------------------------------------------------- |
||
2151 | |||
2152 | cDD: |
||
2153 | call disasm_get_byte |
||
2154 | cmp al, 0xC0 |
||
2155 | jae .1 |
||
2156 | dec [disasm_cur_pos] |
||
2157 | shr al, 3 |
||
2158 | and eax, 7 |
||
2159 | xchg eax, edx |
||
2160 | mov eax, [fpuDD+edx*4] |
||
2161 | test eax, eax |
||
2162 | jz cunk |
||
2163 | stosd |
||
2164 | mov eax, ' ' |
||
2165 | stosd |
||
2166 | or ch, 0A1h ; qword operand |
||
2167 | call disasm_readrmop |
||
2168 | and byte [edi], 0 |
||
2169 | ret |
||
2170 | |||
2171 | .1: |
||
2172 | push eax |
||
2173 | shr al, 3 |
||
2174 | and eax, 7 |
||
2175 | xchg eax, edx |
||
2176 | mov eax, dword [fpuDD_2+edx*8] |
||
2177 | test eax, eax |
||
2178 | jz cerr |
||
2179 | stosd |
||
2180 | mov eax, dword [fpuDD_2+4+edx*8] |
||
2181 | stosd |
||
2182 | mov ax, 'st' |
||
2183 | stosw |
||
2184 | pop eax |
||
2185 | and al, 7 |
||
2186 | add al, '0' |
||
2187 | stosb |
||
2188 | and byte [edi], 0 |
||
2189 | ret |
||
2190 | |||
2191 | ;----------------------------------------------------------------------------- |
||
2192 | |||
2193 | iglobal |
||
2194 | fpuDE dd 'add ','mul ',0,0,'subr','sub ','divr','div ' |
||
2195 | endg |
||
2196 | |||
2197 | ;----------------------------------------------------------------------------- |
||
2198 | |||
2199 | cDE: |
||
2200 | call disasm_get_byte |
||
2201 | cmp al, 0xC0 |
||
2202 | jae .1 |
||
2203 | dec [disasm_cur_pos] |
||
2204 | mov word [edi], 'fi' |
||
2205 | inc edi |
||
2206 | inc edi |
||
2207 | shr al, 3 |
||
2208 | and eax, 7 |
||
2209 | mov eax, [fpuD8+eax*4] |
||
2210 | stosd |
||
2211 | mov ax, ' ' |
||
2212 | stosw |
||
2213 | or ch, 81h ; force 16-bit |
||
2214 | call disasm_readrmop |
||
2215 | and byte [edi], 0 |
||
2216 | ret |
||
2217 | |||
2218 | .1: |
||
2219 | push eax |
||
2220 | shr al, 3 |
||
2221 | and eax, 7 |
||
2222 | xchg eax, edx |
||
2223 | mov eax, [fpuDE+edx*4] |
||
2224 | test eax, eax |
||
2225 | jz .fcompp |
||
2226 | mov byte [edi], 'f' |
||
2227 | inc edi |
||
2228 | stosd |
||
2229 | mov al, 'p' |
||
2230 | cmp byte [edi-1], ' ' |
||
2231 | jnz @f |
||
2232 | mov byte [edi-1], al |
||
2233 | mov al, ' ' |
||
2234 | |||
2235 | @@: |
||
2236 | stosb |
||
2237 | mov eax, ' st' |
||
2238 | stosd |
||
2239 | pop eax |
||
2240 | and al, 7 |
||
2241 | add al, '0' |
||
2242 | stosb |
||
2243 | mov ax, ', ' |
||
2244 | stosw |
||
2245 | mov eax, 'st0' |
||
2246 | stosd |
||
2247 | ret ; CF cleared |
||
2248 | |||
2249 | .fcompp: |
||
2250 | pop eax |
||
2251 | cmp al, 0xD9 |
||
2252 | jnz cerr |
||
2253 | mov eax, 'fcom' |
||
2254 | stosd |
||
2255 | mov ax, 'pp' |
||
2256 | stosw |
||
2257 | and byte [edi], 0 |
||
2258 | ret |
||
2259 | |||
2260 | ;----------------------------------------------------------------------------- |
||
2261 | |||
2262 | iglobal |
||
2263 | fpuDF dd 'ild ',0,'ist ','istp','bld ','ild ','bstp','istp' |
||
2264 | endg |
||
2265 | |||
2266 | ;----------------------------------------------------------------------------- |
||
2267 | |||
2268 | cDF: |
||
2269 | call disasm_get_byte |
||
2270 | cmp al, 0xC0 |
||
2271 | jae .1 |
||
2272 | dec [disasm_cur_pos] |
||
2273 | shr al, 3 |
||
2274 | and eax, 7 |
||
2275 | xchg eax, edx |
||
2276 | mov eax, [fpuDF+edx*4] |
||
2277 | test eax, eax |
||
2278 | jz cerr |
||
2279 | mov byte [edi], 'f' |
||
2280 | inc edi |
||
2281 | stosd |
||
2282 | mov ax, ' ' |
||
2283 | stosw |
||
2284 | stosb |
||
2285 | or ch, 81h ; force 16-bit operand |
||
2286 | cmp dl, 4 |
||
2287 | jb @f |
||
2288 | or ch, 20h |
||
2289 | test dl, 1 |
||
2290 | jnz @f |
||
2291 | or ch, 40h |
||
2292 | |||
2293 | @@: |
||
2294 | call disasm_readrmop |
||
2295 | and byte [edi], 0 |
||
2296 | ret |
||
2297 | |||
2298 | .1: |
||
2299 | cmp al, 0xE0 |
||
2300 | jnz cunk |
||
2301 | mov eax, 'fnst' |
||
2302 | stosd |
||
2303 | mov eax, 'sw ' |
||
2304 | stosd |
||
2305 | mov ax, 'ax' |
||
2306 | stosw |
||
2307 | and byte [edi], 0 |
||
2308 | ret |
||
2309 | |||
2310 | ;----------------------------------------------------------------------------- |
||
2311 | |||
2312 | cmovd1: |
||
2313 | mov eax, 'movd' |
||
2314 | stosd |
||
2315 | mov eax, ' ' |
||
2316 | stosd |
||
2317 | call disasm_get_byte |
||
2318 | dec [disasm_cur_pos] |
||
2319 | shr al, 3 |
||
2320 | and eax, 7 |
||
2321 | call disasm_write_mmreg |
||
2322 | mov ax, ', ' |
||
2323 | stosw |
||
2324 | or ch, 0C0h |
||
2325 | and ch, not 1 |
||
2326 | call disasm_readrmop |
||
2327 | and byte [edi], 0 |
||
2328 | ret |
||
2329 | |||
2330 | ;----------------------------------------------------------------------------- |
||
2331 | |||
2332 | cmovd2: |
||
2333 | mov eax, 'movd' |
||
2334 | stosd |
||
2335 | mov eax, ' ' |
||
2336 | stosd |
||
2337 | call disasm_get_byte |
||
2338 | dec [disasm_cur_pos] |
||
2339 | shr al, 3 |
||
2340 | and eax, 7 |
||
2341 | push eax ecx |
||
2342 | or ch, 0C0h |
||
2343 | and ch, not 1 |
||
2344 | call disasm_readrmop |
||
2345 | mov ax, ', ' |
||
2346 | stosw |
||
2347 | pop ecx eax |
||
2348 | call disasm_write_mmreg |
||
2349 | and byte [edi], 0 |
||
2350 | ret |
||
2351 | |||
2352 | ;----------------------------------------------------------------------------- |
||
2353 | |||
2354 | cmovq1: |
||
2355 | test ch, 1 |
||
2356 | jz .mm |
||
2357 | mov eax, 'movd' |
||
2358 | stosd |
||
2359 | mov eax, 'qa ' |
||
2360 | stosd |
||
2361 | jmp disasm_mmx1 |
||
2362 | |||
2363 | .mm: |
||
2364 | mov eax, 'movq' |
||
2365 | stosd |
||
2366 | mov eax, ' ' |
||
2367 | stosd |
||
2368 | jmp disasm_mmx1 |
||
2369 | |||
2370 | ;----------------------------------------------------------------------------- |
||
2371 | |||
2372 | cmovq2: |
||
2373 | test ch, 1 |
||
2374 | jz .mm |
||
2375 | mov eax, 'movd' |
||
2376 | stosd |
||
2377 | mov eax, 'qa ' |
||
2378 | stosd |
||
2379 | jmp disasm_mmx3 |
||
2380 | |||
2381 | .mm: |
||
2382 | mov eax, 'movq' |
||
2383 | |||
2384 | disasm_mmx2: |
||
2385 | stosd |
||
2386 | mov eax, ' ' |
||
2387 | stosd |
||
2388 | |||
2389 | disasm_mmx3: |
||
2390 | or ch, 50h |
||
2391 | call disasm_get_byte |
||
2392 | dec [disasm_cur_pos] |
||
2393 | push eax |
||
2394 | call disasm_readrmop |
||
2395 | mov ax, ', ' |
||
2396 | stosw |
||
2397 | pop eax |
||
2398 | shr al, 3 |
||
2399 | and eax, 7 |
||
2400 | call disasm_write_mmreg |
||
2401 | and byte [edi], 0 |
||
2402 | ret |
||
2403 | |||
2404 | ;----------------------------------------------------------------------------- |
||
2405 | |||
2406 | iglobal |
||
2407 | mmx_cmds: |
||
2408 | db 0x60,'unpcklbw' |
||
2409 | db 0x61,'unpcklwd' |
||
2410 | db 0x62,'unpckldq' |
||
2411 | db 0x63,'packsswb' |
||
2412 | db 0x64,'pcmpgtb ' |
||
2413 | db 0x65,'pcmpgtw ' |
||
2414 | db 0x66,'pcmpgtd ' |
||
2415 | db 0x67,'packuswb' |
||
2416 | db 0x68,'unpckhbw' |
||
2417 | db 0x69,'unpckhwd' |
||
2418 | db 0x6A,'unpckhdq' |
||
2419 | db 0x6B,'packssdw' |
||
2420 | db 0x74,'pcmpeqb ' |
||
2421 | db 0x75,'pcmpeqw ' |
||
2422 | db 0x76,'pcmpeqd ' |
||
2423 | db 0xD4,'paddq ' |
||
2424 | db 0xD5,'pmullw ' |
||
2425 | db 0xD8,'psubusb ' |
||
2426 | db 0xD9,'psubusw ' |
||
2427 | db 0xDA,'pminub ' |
||
2428 | db 0xDB,'pand ' |
||
2429 | db 0xDC,'paddusb ' |
||
2430 | db 0xDD,'paddusw ' |
||
2431 | db 0xDE,'pmaxub ' |
||
2432 | db 0xDF,'pandn ' |
||
2433 | db 0xE0,'pavgb ' |
||
2434 | db 0xE3,'pavgw ' |
||
2435 | db 0xE4,'pmulhuw ' |
||
2436 | db 0xE5,'pmulhw ' |
||
2437 | db 0xE8,'psubsb ' |
||
2438 | db 0xE9,'psubsw ' |
||
2439 | db 0xEA,'pminsw ' |
||
2440 | db 0xEB,'por ' |
||
2441 | db 0xEC,'paddsb ' |
||
2442 | db 0xED,'paddsw ' |
||
2443 | db 0xEE,'pmaxsw ' |
||
2444 | db 0xEF,'pxor ' |
||
2445 | db 0xF4,'pmuludq ' |
||
2446 | db 0xF5,'pmaddwd ' |
||
2447 | db 0xF6,'psadbw ' |
||
2448 | db 0xF8,'psubb ' |
||
2449 | db 0xF9,'psubw ' |
||
2450 | db 0xFA,'psubd ' |
||
2451 | db 0xFB,'psubq ' |
||
2452 | db 0xFC,'paddb ' |
||
2453 | db 0xFD,'paddw ' |
||
2454 | db 0xFE,'paddd ' |
||
2455 | endg |
||
2456 | |||
2457 | ;----------------------------------------------------------------------------- |
||
2458 | |||
2459 | cpcmn: |
||
2460 | mov esi, mmx_cmds |
||
2461 | |||
2462 | @@: |
||
2463 | cmp al, [esi] |
||
2464 | jz @f |
||
2465 | add esi, 9 |
||
2466 | jmp @b |
||
2467 | |||
2468 | @@: |
||
2469 | inc esi |
||
2470 | mov al, 'p' |
||
2471 | cmp byte [esi], al |
||
2472 | jz @f |
||
2473 | stosb |
||
2474 | |||
2475 | @@: |
||
2476 | movsd |
||
2477 | movsd |
||
2478 | cmp byte [edi-1], ' ' |
||
2479 | jz @f |
||
2480 | mov al, ' ' |
||
2481 | stosb |
||
2482 | |||
2483 | ; @@: |
||
2484 | |||
2485 | disasm_mmx1: |
||
2486 | @@: |
||
2487 | or ch, 50h |
||
2488 | call disasm_get_byte |
||
2489 | dec [disasm_cur_pos] |
||
2490 | shr al, 3 |
||
2491 | and eax, 7 |
||
2492 | call disasm_write_mmreg |
||
2493 | mov ax, ', ' |
||
2494 | stosw |
||
2495 | call disasm_readrmop |
||
2496 | cmp word [disasm_string], 'cm' |
||
2497 | jz .cmp |
||
2498 | and byte [edi], 0 |
||
2499 | ret |
||
2500 | |||
2501 | .cmp: |
||
2502 | call disasm_get_byte |
||
2503 | and eax, 7 |
||
2504 | mov dx, 'eq' |
||
2505 | dec eax |
||
2506 | js @f |
||
2507 | mov dx, 'lt' |
||
2508 | jz @f |
||
2509 | mov dh, 'e' |
||
2510 | dec eax |
||
2511 | jnz .no2 |
||
2512 | |||
2513 | @@: |
||
2514 | xchg dx, word [disasm_string+3] |
||
2515 | mov word [disasm_string+5], dx |
||
2516 | and byte [edi], 0 |
||
2517 | ret |
||
2518 | |||
2519 | .no2: |
||
2520 | dec eax |
||
2521 | jnz @f |
||
2522 | add edi, 2 |
||
2523 | push edi |
||
2524 | lea esi, [edi-3] |
||
2525 | lea ecx, [esi-(disasm_string+8)+2] |
||
2526 | std |
||
2527 | rep movsb |
||
2528 | cld |
||
2529 | mov cx, word [esi-3] |
||
2530 | mov dword [esi-3], 'unor' |
||
2531 | mov byte [esi+1], 'd' |
||
2532 | mov word [esi+2], cx |
||
2533 | pop edi |
||
2534 | and byte [edi+1], 0 |
||
2535 | ret |
||
2536 | |||
2537 | @@: |
||
2538 | mov edx, 'neq' |
||
2539 | dec eax |
||
2540 | jz @f |
||
2541 | mov edx, 'nlt' |
||
2542 | dec eax |
||
2543 | jz @f |
||
2544 | mov edx, 'nle' |
||
2545 | dec eax |
||
2546 | jz @f |
||
2547 | mov edx, 'ord' |
||
2548 | |||
2549 | @@: |
||
2550 | push edi |
||
2551 | lea esi, [edi-1] |
||
2552 | lea ecx, [esi-(disasm_string+8)+2] |
||
2553 | std |
||
2554 | rep movsb |
||
2555 | cld |
||
2556 | mov cx, word [esi-3] |
||
2557 | mov dword [esi-3], edx |
||
2558 | mov word [esi], cx |
||
2559 | pop edi |
||
2560 | and byte [edi+1], 0 |
||
2561 | ret |
||
2562 | |||
2563 | ;----------------------------------------------------------------------------- |
||
2564 | |||
2565 | cpsrlw: |
||
2566 | mov eax, 'psrl' |
||
2567 | jmp @f |
||
2568 | |||
2569 | cpsraw: |
||
2570 | mov eax, 'psra' |
||
2571 | jmp @f |
||
2572 | |||
2573 | cpsllw: |
||
2574 | mov eax, 'psll' |
||
2575 | |||
2576 | @@: |
||
2577 | stosd |
||
2578 | mov eax, 'w ' |
||
2579 | stosd |
||
2580 | jmp disasm_mmx1 |
||
2581 | |||
2582 | cpsrld: |
||
2583 | mov eax, 'psrl' |
||
2584 | jmp @f |
||
2585 | |||
2586 | cpsrad: |
||
2587 | mov eax, 'psra' |
||
2588 | jmp @f |
||
2589 | |||
2590 | cpslld: |
||
2591 | mov eax, 'psll' |
||
2592 | |||
2593 | @@: |
||
2594 | stosd |
||
2595 | mov eax, 'd ' |
||
2596 | stosd |
||
2597 | jmp disasm_mmx1 |
||
2598 | |||
2599 | cpsrlq: |
||
2600 | mov eax, 'psrl' |
||
2601 | jmp @f |
||
2602 | |||
2603 | cpsllq: |
||
2604 | mov eax, 'psll' |
||
2605 | |||
2606 | @@: |
||
2607 | stosd |
||
2608 | mov eax, 'q ' |
||
2609 | stosd |
||
2610 | jmp disasm_mmx1 |
||
2611 | |||
2612 | ;----------------------------------------------------------------------------- |
||
2613 | |||
2614 | csse1: |
||
2615 | iglobal |
||
2616 | sse_cmds1: |
||
2617 | db 0x2F,4,'comi' |
||
2618 | db 0x54,3,'and' |
||
2619 | db 0x55,4,'andn' |
||
2620 | db 0x58,3,'add' |
||
2621 | db 0xC2,3,'cmp' |
||
2622 | endg |
||
2623 | mov esi, sse_cmds1+1 |
||
2624 | |||
2625 | .1: |
||
2626 | @@: |
||
2627 | movzx edx, byte [esi] |
||
2628 | cmp al, [esi-1] |
||
2629 | jz @f |
||
2630 | lea esi, [esi+edx+2] |
||
2631 | jmp @b |
||
2632 | |||
2633 | @@: |
||
2634 | push ecx |
||
2635 | mov ecx, edx |
||
2636 | inc esi |
||
2637 | rep movsb |
||
2638 | pop ecx |
||
2639 | mov al, 's' |
||
2640 | cmp byte [edi-1], 'i' |
||
2641 | jz @f |
||
2642 | mov al, 'p' |
||
2643 | |||
2644 | @@: |
||
2645 | stosb |
||
2646 | mov al, 'd' |
||
2647 | test ch, 1 |
||
2648 | jnz @f |
||
2649 | mov al, 's' |
||
2650 | |||
2651 | @@: |
||
2652 | stosb |
||
2653 | push ecx |
||
2654 | push 5 |
||
2655 | pop ecx |
||
2656 | sub ecx, edx |
||
2657 | adc ecx, 1 |
||
2658 | mov al, ' ' |
||
2659 | rep stosb |
||
2660 | pop ecx |
||
2661 | or ch, 1 ; force XMM reg |
||
2662 | jmp disasm_mmx1 |
||
2663 | |||
2664 | ;----------------------------------------------------------------------------- |
||
2665 | |||
2666 | csse2: |
||
2667 | iglobal |
||
2668 | sse_cmds2: |
||
2669 | db 0xD0,6,'addsub' |
||
2670 | db 0,0 |
||
2671 | endg |
||
2672 | test ch, 1 |
||
2673 | jz cerr |
||
2674 | mov esi, sse_cmds2+1 |
||
2675 | jmp csse1.1 |
||
2676 | |||
2677 | cpshift: |
||
2678 | mov dl, al |
||
2679 | mov ax, 'ps' |
||
2680 | stosw |
||
2681 | call disasm_get_byte |
||
2682 | push eax |
||
2683 | and al, 0xC0 |
||
2684 | cmp al, 0xC0 |
||
2685 | jnz .pop_cunk |
||
2686 | pop eax |
||
2687 | push eax |
||
2688 | shr al, 3 |
||
2689 | and eax, 7 |
||
2690 | cmp al, 2 |
||
2691 | jz .rl |
||
2692 | cmp al, 4 |
||
2693 | jz .ra |
||
2694 | cmp al, 6 |
||
2695 | jz .ll |
||
2696 | |||
2697 | .pop_cunk: |
||
2698 | pop eax |
||
2699 | jmp cunk |
||
2700 | |||
2701 | .ll: |
||
2702 | mov ax, 'll' |
||
2703 | jmp @f |
||
2704 | |||
2705 | .rl: |
||
2706 | mov ax, 'rl' |
||
2707 | jmp @f |
||
2708 | |||
2709 | .ra: |
||
2710 | cmp dl, 0x73 |
||
2711 | jz .pop_cunk |
||
2712 | mov ax, 'ra' |
||
2713 | |||
2714 | @@: |
||
2715 | stosw |
||
2716 | mov al, 'w' |
||
2717 | cmp dl, 0x71 |
||
2718 | jz @f |
||
2719 | mov al, 'd' |
||
2720 | cmp dl, 0x72 |
||
2721 | jz @f |
||
2722 | mov al, 'q' |
||
2723 | |||
2724 | @@: |
||
2725 | stosb |
||
2726 | mov ax, ' ' |
||
2727 | stosw |
||
2728 | stosb |
||
2729 | pop eax |
||
2730 | and eax, 7 |
||
2731 | call disasm_write_mmreg |
||
2732 | mov ax, ', ' |
||
2733 | stosw |
||
2734 | xor eax, eax |
||
2735 | call disasm_get_byte |
||
2736 | call disasm_write_num |
||
2737 | and byte [edi], 0 |
||
2738 | ret |
||
2739 | |||
2740 | ;----------------------------------------------------------------------------- |
||
2741 | |||
2742 | iglobal |
||
2743 | grp15c1 dq 'fxsave ','fxrstor ','ldmxcsr ','stmxcsr ',0,0,0,'clflush ' |
||
2744 | endg |
||
2745 | |||
2746 | ;----------------------------------------------------------------------------- |
||
2747 | |||
2748 | cgrp15: |
||
2749 | call disasm_get_byte |
||
2750 | cmp al, 0xC0 |
||
2751 | jae cunk |
||
2752 | shr al, 3 |
||
2753 | and eax, 7 |
||
2754 | mov edx, eax |
||
2755 | mov eax, dword [grp15c1+eax*8] |
||
2756 | test eax, eax |
||
2757 | jz cerr |
||
2758 | dec [disasm_cur_pos] |
||
2759 | stosd |
||
2760 | mov eax, dword [grp15c1+4+edx*8] |
||
2761 | stosd |
||
2762 | or ch, 40h |
||
2763 | call disasm_readrmop |
||
2764 | and byte [edi], 0 |
||
2765 | ret |
||
2766 | |||
2767 | ; vim: ft=fasm tabstop=4 |
||
2768 |