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41//
42// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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49// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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52// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53//
54// Authors: Gabe Black
55
56////////////////////////////////////////////////////////////////////
57//
58// Decode the two byte opcodes
59//
600x2: decode OPCODE_PREFIXA {
61 0x0F: decode OPCODE_OP_TOP5 {
62 format WarnUnimpl {
63 0x00: decode OPCODE_OP_BOTTOM3 {
64 0x00: group6();
65 0x01: group7();
66 0x02: lar_Gv_Ew();
67 0x03: lsl_Gv_Ew();
68 //sandpile.org doesn't seem to know what this is... ?
69 0x04: loadall_or_reset_or_hang();
70#if FULL_SYSTEM
71 0x05: syscall();
72#else
73 0x05: SyscallInst::syscall('xc->syscall(rax)', IsSyscall);
74#endif
75 0x06: clts();
76 //sandpile.org says (AMD) after sysret, so I might want to check
77 //if that means amd64 or AMD machines
78 0x07: loadall_or_sysret();
79 }
80 0x01: decode OPCODE_OP_BOTTOM3 {
81 0x0: invd();
82 0x1: wbinvd();
83 0x2: Inst::UD2();
84 0x3: Inst::UD2();
85 0x4: Inst::UD2();
86 0x5: threednow();
87 0x6: threednow();
88 0x7: threednow();
89 }
90 0x02: decode LEGACY_DECODEVAL {
91 // no prefix
92 0x0: decode OPCODE_OP_BOTTOM3 {
93 0x0: movups_Vo_Wo();
94 0x1: movups_Wo_Vo();
95 0x2: decode MODRM_MOD {
96 0x3: movhlps_Vq_VRq();
97 default: movlps_Vq_Mq();
98 }
99 0x3: movlps_Mq_Vq();
100 0x4: unpcklps();
101 0x5: unpckhps();
102 0x6: decode MODRM_MOD {
103 0x3: movlhps_Vq_VRq();
104 default: movhps_Vq_Mq();
105 }
106 0x7: movhps_Mq_Vq();
107 }
108 // repe (0xF3)
109 0x4: decode OPCODE_OP_BOTTOM3 {
110 0x0: movss_Vd_Wd();
111 0x1: movss_Wd_Vd();
112 0x2: movsldup_Vo_Wo();
113 0x6: movshdup_Vo_Wo();
114 default: Inst::UD2();
115 }
116 // operand size (0x66)
117 0x1: decode OPCODE_OP_BOTTOM3 {
118 0x0: movupd_Vo_Wo();
119 0x1: movupd_Wo_Vo();
120 0x2: Inst::MOVLPD(Vq,Mq);
121 0x3: Inst::MOVLPD(Mq,Vq);
122 0x4: unpcklpd_Vo_Wq();
123 0x5: unpckhpd_Vo_Wo();
124 0x6: movhpd_Vq_Mq();
125 0x7: movhpd_Mq_Vq();
126 }
127 // repne (0xF2)
128 0x8: decode OPCODE_OP_BOTTOM3 {
129 0x0: Inst::MOVSD(Vq,Wq);
130 0x1: Inst::MOVSD(Wq,Vq);
131 0x2: movddup_Vo_Wq();
132 default: Inst::UD2();
133 }
134 default: Inst::UD2();
135 }
136 0x03: decode OPCODE_OP_BOTTOM3 {
137 0x0: group17();
138 0x1: group17();
139 0x2: group17();
140 0x3: group17();
141 0x4: group17();
142 0x5: group17();
143 0x6: group17();
144 0x7: group17();
145 }
146 0x04: decode LEGACY_DECODEVAL {
147 // no prefix
148 0x0: decode OPCODE_OP_BOTTOM3 {
149 0x0: mov_Rd_Cd();
150 0x1: mov_Rd_Dd();
151 0x2: mov_Cd_Rd();
152 0x3: mov_Dd_Rd();
153 0x4: mov_Rd_Td();
154 0x6: mov_Td_Rd();
155 default: Inst::UD2();
156 }
157 // lock prefix (0xF0)
158 0x2: decode OPCODE_OP_BOTTOM3 {
159 0x0: mov_Rd_CR8D();
160 0x2: mov_CR8D_Rd();
161 }
162 default: Inst::UD2();
163 }
164 0x05: decode LEGACY_DECODEVAL {
165 // no prefix
166 0x0: decode OPCODE_OP_BOTTOM3 {
167 //These moves should really use size o (octword), but
168 //because they are split in two, they use q (quadword).
169 0x0: Inst::MOVAPS(Vq,Wq);
170 0x1: Inst::MOVAPS(Wq,Vq);
171 0x2: decode MODRM_MOD {
172 0x3: cvtpi2pS_Vq_Pq();
173 default: cvtpi2ps_Vq_Mq();
174 }
175 0x3: movntps_Mo_Vo();
176 0x4: cvttps2pi_Pq_Wq();
177 0x5: cvtpS2pi_Pq_Wq();
178 0x6: ucomiss_Vd_Wd();
179 0x7: comiss_Vd_Wd();
180 }
181 // repe (0xF3)
182 0x4: decode OPCODE_OP_BOTTOM3 {
183 0x2: cvtsi2ss_Vd_Ed();
184 0x4: cvttss2si_Gd_Wd();
185 0x5: cvtss2si_Gd_Wd();
186 default: Inst::UD2();
187 }
188 // operand size (0x66)
189 0x1: decode OPCODE_OP_BOTTOM3 {
190 0x0: movapd_Vo_Wo();
191 0x1: movapd_Wo_Vo();
192 0x2: decode MODRM_MOD {
193 0x3: cvtpi2pd_Vo_Pq();
194 default: cvtpi2pd_Vo_Mq();
195 }
196 0x3: movntpd_Mo_Vo();
197 0x4: cvttpd2pi_Pq_Wo();
198 0x5: cvtpd2pi_Pq_Wo();
199 0x6: Inst::UCOMISD(Vq,Wq);
200 0x7: comisd_Vq_Wq();
201 }
202 // repne (0xF2)
203 0x8: decode OPCODE_OP_BOTTOM3 {
204 // The size of the V operand should be q, not dp
205 0x2: Inst::CVTSI2SD(Vdp,Edp);
206 // The size of the W operand should be q, not dp
207 0x4: Inst::CVTTSD2SI(Gdp,Wdp);
208 0x5: cvtsd2si_Gd_Wq();
209 default: Inst::UD2();
210 }
211 default: Inst::UD2();
212 }
213 0x06: decode OPCODE_OP_BOTTOM3 {
214 0x0: Inst::WRMSR();
215 0x1: rdtsc();
216 0x2: Inst::RDMSR();
217 0x3: rdpmc();
218 0x4: sysenter();
219 0x5: sysexit();
220 0x6: Inst::UD2();
221 0x7: getsec();
222 }
223 0x07: decode OPCODE_OP_BOTTOM3 {
224 0x0: three_byte_opcode();
225 0x1: three_byte_opcode();
226 0x2: three_byte_opcode();
227 0x3: three_byte_opcode();
228 0x4: three_byte_opcode();
229 0x5: three_byte_opcode();
230 0x6: three_byte_opcode();
231 0x7: three_byte_opcode();
232 }
233 format Inst {
234 0x08: decode OPCODE_OP_BOTTOM3 {
235 0x0: CMOVO(Gv,Ev);
236 0x1: CMOVNO(Gv,Ev);
237 0x2: CMOVB(Gv,Ev);
238 0x3: CMOVNB(Gv,Ev);
239 0x4: CMOVZ(Gv,Ev);
240 0x5: CMOVNZ(Gv,Ev);
241 0x6: CMOVBE(Gv,Ev);
242 0x7: CMOVNBE(Gv,Ev);
243 }
244 0x09: decode OPCODE_OP_BOTTOM3 {
245 0x0: CMOVS(Gv,Ev);
246 0x1: CMOVNS(Gv,Ev);
247 0x2: CMOVP(Gv,Ev);
248 0x3: CMOVNP(Gv,Ev);
249 0x4: CMOVL(Gv,Ev);
250 0x5: CMOVNL(Gv,Ev);
251 0x6: CMOVLE(Gv,Ev);
252 0x7: CMOVNLE(Gv,Ev);
253 }
254 }
255 0x0A: decode LEGACY_DECODEVAL {
256 // no prefix
257 0x0: decode OPCODE_OP_BOTTOM3 {
258 0x0: movmskps_Gd_VRo();
259 0x1: sqrtps_Vo_Wo();
260 0x2: rqsrtps_Vo_Wo();
261 0x3: rcpps_Vo_Wo();
262 0x4: andps_Vo_Wo();
263 0x5: andnps_Vo_Wo();
264 0x6: orps_Vo_Wo();
265 0x7: xorps_Vo_Wo();
266 }
267 // repe (0xF3)
268 0x4: decode OPCODE_OP_BOTTOM3 {
269 0x1: sqrtss_Vd_Wd();
270 0x2: rsqrtss_Vd_Wd();
271 0x3: rcpss_Vd_Wd();
272 default: Inst::UD2();
273 }
274 // operand size (0x66)
275 0x1: decode OPCODE_OP_BOTTOM3 {
276 0x0: movmskpd_Gd_VRo();
277 0x1: sqrtpd_Vo_Wo();
278 0x4: andpd_Vo_Wo();
279 0x5: andnpd_Vo_Wo();
280 0x6: orpd_Vo_Wo();
281 //This really should be type o, but it works on q sized
282 //chunks at a time.
283 0x7: Inst::XORPD(Vq,Wq);
284 default: Inst::UD2();
285 }
286 format Inst {
287 // repne (0xF2)
288 0x8: decode OPCODE_OP_BOTTOM3 {
289 0x1: SQRTSD(Vq,Wq);
290 default: UD2();
291 }
292 default: UD2();
293 }
294 }
295 0x0B: decode LEGACY_DECODEVAL {
296 // no prefix
297 0x0: decode OPCODE_OP_BOTTOM3 {
298 0x0: addps_Vo_Wo();
299 0x1: mulps_Vo_Wo();
300 0x2: cvtps2pd_Vo_Wq();
301 0x3: cvtdq2ps_Vo_Wo();
302 0x4: subps_Vo_Wo();
303 0x5: minps_Vo_Wo();
304 0x6: divps_Vo_Wo();
305 0x7: maxps_Vo_Wo();
306 }
307 // repe (0xF3)
308 0x4: decode OPCODE_OP_BOTTOM3 {
309 0x0: addss_Vd_Wd();
310 0x1: mulss_Vd_Wd();
311 0x2: cvtss2sd_Vq_Wd();
312 0x3: cvttps2dq_Vo_Wo();
313 0x4: subss_Vd_Wd();
314 0x5: minss_Vd_Wd();
315 0x6: divss_Vd_Wd();
316 0x7: maxss_Vd_Wd();
317 }
318 // operand size (0x66)
319 0x1: decode OPCODE_OP_BOTTOM3 {
320 0x0: addpd_Vo_Wo();
321 0x1: mulpd_Vo_Wo();
322 0x2: cvtpd2ps_Vo_Wo();
323 0x3: cvtps2dq_Vo_Wo();
324 0x4: subpd_Vo_Wo();
325 0x5: minpd_Vo_Wo();
326 0x6: divpd_Vo_Wo();
327 0x7: maxpd_Vo_Wo();
328 }
329 // repne (0xF2)
330 0x8: decode OPCODE_OP_BOTTOM3 {
331 0x0: Inst::ADDSD(Vq,Wq);
332 0x1: Inst::MULSD(Vq,Wq);
333 0x2: cvtsd2ss_Vd_Wq();
334 0x4: Inst::SUBSD(Vq,Wq);
335 0x5: minsd_Vq_Wq();
336 0x6: Inst::DIVSD(Vq,Wq);
337 0x7: maxsd_Vq_Wq();
338 default: Inst::UD2();
339 }
340 default: Inst::UD2();
341 }
342 0x0C: decode LEGACY_DECODEVAL {
343 // no prefix
344 0x0: decode OPCODE_OP_BOTTOM3 {
345 0x0: punpcklbw_Pq_Qd();
346 0x1: punpcklwd_Pq_Qd();
347 0x2: punpckldq_Pq_Qd();
348 0x3: packsswb_Pq_Qq();
349 0x4: pcmpgtb_Pq_Qq();
350 0x5: pcmpgtw_Pq_Qq();
351 0x6: pcmpgtd_Pq_Qq();
352 0x7: packuswb_Pq_Qq();
353 }
354 // operand size (0x66)
355 0x1: decode OPCODE_OP_BOTTOM3 {
356 0x0: punpcklbw_Vo_Wq();
357 0x1: punpcklwd_Vo_Wq();
358 0x2: punpckldq_Vo_Wq();
359 0x3: packsswb_Vo_Wo();
360 0x4: pcmpgtb_Vo_Wo();
361 0x5: pcmpgtw_Vo_Wo();
362 0x6: pcmpgtd_Vo_Wo();
363 0x7: packuswb_Vo_Wo();
364 }
365 default: Inst::UD2();
366 }
367 0x0D: decode LEGACY_DECODEVAL {
368 // no prefix
369 0x0: decode OPCODE_OP_BOTTOM3 {
370 0x0: punpckhbw_Pq_Qq();
371 0x1: punpckhwd_Pq_Qq();
372 0x2: punpckhdq_Pq_Qq();
373 0x3: packssdw_Pq_Qq();
374 0x6: movd_Pq_Ed();
375 0x7: movq_Pq_Qq();
376 default: Inst::UD2();
377 }
378 // repe (0xF3)
379 0x4: decode OPCODE_OP_BOTTOM3 {
380 0x7: movdqu_Vo_Wo();
381 default: Inst::UD2();
382 }
383 // operand size (0x66)
384 0x1: decode OPCODE_OP_BOTTOM3 {
385 0x0: punpckhbw_Vo_Wo();
386 0x1: punpckhwd_Vo_Wo();
387 0x2: punpckhdq_Vo_Wo();
388 0x3: packssdw_Vo_Wo();
389 0x4: punpcklqdq_Vo_Wq();
390 0x5: punpcklqdq_Vo_Wq();
391 0x6: movd_Vo_Ed();
392 0x7: movdqa_Vo_Wo();
393 }
394 default: Inst::UD2();
395 }
396 0x0E: decode LEGACY_DECODEVAL {
397 // no prefix
398 0x0: decode OPCODE_OP_BOTTOM3 {
399 0x0: pshufw_Pq_Qq_Ib();
400 0x1: group13_pshimw();
401 0x2: group14_pshimd();
402 0x3: group15_pshimq();
403 0x4: pcmpeqb_Pq_Qq();
404 0x5: pcmpeqw_Pq_Qq();
405 0x6: pcmpeqd_Pq_Qq();
406 0x7: emms();
407 }
408 // repe (0xF3)
409 0x4: decode OPCODE_OP_BOTTOM3 {
410 0x0: pshufhw_Vo_Wo_Ib();
411 default: Inst::UD2();
412 }
413 // operand size (0x66)
414 0x1: decode OPCODE_OP_BOTTOM3 {
415 0x0: pshufd_Vo_Wo_Ib();
416 0x1: group13_pshimw();
417 0x2: group14_pshimd();
418 0x3: group15_pshimq_dq();
419 0x4: pcmpeqb_Vo_Wo();
420 0x5: pcmpeqw_Vo_Wo();
421 0x6: pcmpeqd_Vo_Wo();
422 default: Inst::UD2();
423 }
424 // repne (0xF2)
425 0x8: decode OPCODE_OP_BOTTOM3 {
426 0x0: pshuflw_Vo_Wo_Ib();
427 default: Inst::UD2();
428 }
429 default: Inst::UD2();
430 }
431 0x0F: decode LEGACY_DECODEVAL {
432 // no prefix
433 0x0: decode OPCODE_OP_BOTTOM3 {
434 0x0: vmread_Ed_or_Eq_Gd_or_Gq();
435 0x1: vmwrite_Gd_or_Gq_Ed_or_Eq();
436 0x6: mov_Ed_Pd();
437 0x7: mov_Qq_Pq();
438 default: Inst::UD2();
439 }
440 // repe (0xF3)
441 0x4: decode OPCODE_OP_BOTTOM3 {
442 0x6: movq_Vo_Mq_or_Vq_Vq();
443 0x7: movdqu_Wo_Vo();
444 default: Inst::UD2();
445 }
446 // operand size (0x66)
447 0x1: decode OPCODE_OP_BOTTOM3 {
448 0x4: haddpd_Vo_Wo();
449 0x5: hsubpd_Vo_Wo();
450 0x6: movd_Ed_Vd();
451 0x7: movdqa_Wo_Vo();
452 default: Inst::UD2();
453 }
454 // repne (0xF2)
455 0x8: decode OPCODE_OP_BOTTOM3 {
456 0x4: haddps_Vo_Wo();
457 0x5: hsubps_Vo_Wo();
458 default: Inst::UD2();
459 }
460 default: Inst::UD2();
461 }
462 format Inst {
463 0x10: decode OPCODE_OP_BOTTOM3 {
464 0x0: JO(Jz);
465 0x1: JNO(Jz);
466 0x2: JB(Jz);
467 0x3: JNB(Jz);
468 0x4: JZ(Jz);
469 0x5: JNZ(Jz);
470 0x6: JBE(Jz);
471 0x7: JNBE(Jz);
472 }
473 0x11: decode OPCODE_OP_BOTTOM3 {
474 0x0: JS(Jz);
475 0x1: JNS(Jz);
476 0x2: JP(Jz);
477 0x3: JNP(Jz);
478 0x4: JL(Jz);
479 0x5: JNL(Jz);
480 0x6: JLE(Jz);
481 0x7: JNLE(Jz);
482 }
483 0x12: decode OPCODE_OP_BOTTOM3 {
484 0x0: SETO(Eb);
485 0x1: SETNO(Eb);
486 0x2: SETB(Eb);
487 0x3: SETNB(Eb);
488 0x4: SETZ(Eb);
489 0x5: SETNZ(Eb);
490 0x6: SETBE(Eb);
491 0x7: SETNBE(Eb);
492 }
493 0x13: decode OPCODE_OP_BOTTOM3 {
494 0x0: SETS(Eb);
495 0x1: SETNS(Eb);
496 0x2: SETP(Eb);
497 0x3: SETNP(Eb);
498 0x4: SETL(Eb);
499 0x5: SETNL(Eb);
500 0x6: SETLE(Eb);
501 0x7: SETNLE(Eb);
502 }
503 }
504 0x14: decode OPCODE_OP_BOTTOM3 {
505 0x0: push_fs();
506 0x1: pop_fs();
507 0x2: Inst::CPUID(rAd);
508 0x3: bt_Ev_Gv();
509 0x4: shld_Ev_Gv_Ib();
510 0x5: shld_Ev_Gv_rCl();
511 0x6: xbts_and_cmpxchg();
512 0x7: ibts_and_cmpxchg();
513 }
514 0x15: decode OPCODE_OP_BOTTOM3 {
515 0x0: push_gs();
516 0x1: pop_gs();
517 0x2: rsm_smm();
518 0x3: bts_Ev_Gv();
519 0x4: shrd_Ev_Gv_Ib();
520 0x5: shrd_Ev_Gv_rCl();
521 0x6: group16();
522 0x7: Inst::IMUL(Gv,Ev);
523 }
524 0x16: decode OPCODE_OP_BOTTOM3 {
525 0x0: Inst::CMPXCHG(Eb,Gb);
526 0x1: Inst::CMPXCHG(Ev,Gv);
527 0x2: lss_Gz_Mp();
528 0x3: btr_Ev_Gv();
529 0x4: lfs_Gz_Mp();
530 0x5: lgs_Gz_Mp();
531 //The size of the second operand in these instructions should
532 //really be "b" or "w", but it's set to v in order to have a
533 //consistent register size. This shouldn't affect behavior.
534 0x6: Inst::MOVZX_B(Gv,Ev);
535 0x7: Inst::MOVZX_W(Gv,Ev);
536 }
537 0x17: decode OPCODE_OP_BOTTOM3 {
538 0x0: jmpe_Jz(); // IA-64?
539 0x1: group11_UD2();
540 0x2: group8_Ev_Ib();
541 0x3: btc_Ev_Gv();
542 0x4: bsf_Gv_Ev();
543 0x5: bsr_Gv_Ev();
544 //The size of the second operand in these instructions should
545 //really be "b" or "w", but it's set to v in order to have a
546 //consistent register size. This shouldn't affect behavior.
547 0x6: Inst::MOVSX_B(Gv,Ev);
548 0x7: Inst::MOVSX_W(Gv,Ev);
549 }
550 0x18: decode OPCODE_OP_BOTTOM3 {
551 0x0: xadd_Eb_Gb();
552 0x1: xadd_Ev_Gv();
553 0x7: group9();
554 default: decode LEGACY_DECODEVAL {
555 // no prefix
556 0x0: decode OPCODE_OP_BOTTOM3 {
557 0x2: cmpccps_Vo_Wo_Ib();
558 0x3: cvtdq2ps_Vo_Wo();
559 0x4: subps_Vo_Wo();
560 0x5: minps_Vo_Wo();
561 0x6: divps_Vo_Wo();
562 }
563 // repe (0xF3)
564 0x4: decode OPCODE_OP_BOTTOM3 {
565 0x2: cmpccss_Vd_Wd_Ib();
566 default: Inst::UD2();
567 }
568 // operand size (0x66)
569 0x1: decode OPCODE_OP_BOTTOM3 {
570 0x2: cmpccpd_Vo_Wo_Ib();
571 0x4: subpd_Vo_Wo();
572 0x5: minpd_Vo_Wo();
573 0x6: divpd_Vo_Wo();
574 default: Inst::UD2();
575 }
576 // repne (0xF2)
577 0x8: decode OPCODE_OP_BOTTOM3 {
578 0x2: cmpccsd_Vq_Wq_Ib();
579 default: Inst::UD2();
580 }
581 default: Inst::UD2();
582 }
583 }
584 0x19: bswap_B();
585 0x1A: decode LEGACY_DECODEVAL {
586 // no prefix
587 0x0: decode OPCODE_OP_BOTTOM3 {
588 0x1: psrlw_Pq_Qq();
589 0x2: psrld_Pq_Qq();
590 0x3: psrlq_Pq_Qq();
591 0x4: paddq_Pq_Qq();
592 0x5: pmullw_Pq_Qq();
593 0x7: pmovmskb_Gd_PRq();
594 default: Inst::UD2();
595 }
596 // repe (0xF3)
597 0x4: decode OPCODE_OP_BOTTOM3 {
598 0x6: movq2dq_Vo_PRq();
599 default: Inst::UD2();
600 }
601 // operand size (0x66)
602 0x1: decode OPCODE_OP_BOTTOM3 {
603 0x0: addsubpd_Vo_Wo();
604 0x1: psrlw_Vo_Wo();
605 0x2: psrld_Vo_Wo();
606 0x3: psrlq_Vo_Wo();
607 0x4: paddq_Vo_Wo();
608 0x5: pmullw_Vo_Wo();
609 0x6: decode MODRM_MOD {
610 0x3: movq_Vq_Vq();
611 default: movq_Mq_Vq();
612 }
613 0x7: pmovmskb_Gd_VRo();
614 }
615 // repne (0xF2)
616 0x8: decode OPCODE_OP_BOTTOM3 {
617 0x0: addsubps_Vo_Wo();
618 0x6: movdq2q_Pq_VRq();
619 default: Inst::UD2();
620 }
621 default: Inst::UD2();
622 }
623 0x1B: decode LEGACY_DECODEVAL {
624 // no prefix
625 0x0: decode OPCODE_OP_BOTTOM3 {
626 0x0: psubusb_Pq_Qq();
627 0x1: psubusw_Pq_Qq();
628 0x2: pminub_Pq_Qq();
629 0x3: pand_Pq_Qq();
630 0x4: paddusb_Pq_Qq();
631 0x5: paddusw_Pq_Qq();
632 0x6: pmaxub_Pq_Qq();
633 0x7: pandn_Pq_Qq();
634 }
635 // operand size (0x66)
636 0x1: decode OPCODE_OP_BOTTOM3 {
637 0x0: psubusb_Vo_Wo();
638 0x1: psubusw_Vo_Wo();
639 0x2: pminub_Vo_Wo();
640 0x3: pand_Vo_Wo();
641 0x4: paddusb_Vo_Wo();
642 0x5: paddusw_Vo_Wo();
643 0x6: pmaxub_Vo_Wo();
644 0x7: pandn_Vo_Wo();
645 }
646 default: Inst::UD2();
647 }
648 0x1C: decode LEGACY_DECODEVAL {
649 // no prefix
650 0x0: decode OPCODE_OP_BOTTOM3 {
651 0x0: pavgb_Pq_Qq();
652 0x1: psraw_Pq_Qq();
653 0x2: psrad_Pq_Qq();
654 0x3: pavgw_Pq_Qq();
655 0x4: pmulhuw_Pq_Qq();
656 0x5: pmulhw_Pq_Qq();
657 0x7: movntq_Mq_Pq();
658 default: Inst::UD2();
659 }
660 // repe (0xF3)
661 0x4: decode OPCODE_OP_BOTTOM3 {
662 0x6: cvtdq2pd_Vo_Wq();
663 default: Inst::UD2();
664 }
665 // operand size (0x66)
666 0x1: decode OPCODE_OP_BOTTOM3 {
667 0x0: pavgb_Vo_Wo();
668 0x1: psraw_Vo_Wo();
669 0x2: psrad_Vo_Wo();
670 0x3: pavgw_Vo_Wo();
671 0x4: pmulhuw_Vo_Wo();
672 0x5: pmulhw_Vo_Wo();
673 0x6: cvttpd2dq_Vo_Wo();
674 0x7: movntdq_Mo_Vo();
675 }
676 // repne (0xF2)
677 0x8: decode OPCODE_OP_BOTTOM3 {
678 0x6: cvtpd2dq_Vo_Wo();
679 default: Inst::UD2();
680 }
681 default: Inst::UD2();
682 }
683 0x1D: decode LEGACY_DECODEVAL {
684 // no prefix
685 0x0: decode OPCODE_OP_BOTTOM3 {
686 0x0: psubsb_Pq_Qq();
687 0x1: psubsw_Pq_Qq();
688 0x2: pminsw_Pq_Qq();
689 0x3: por_Pq_Qq();
690 0x4: paddsb_Pq_Qq();
691 0x5: paddsw_Pq_Qq();
692 0x6: pmaxsw_Pq_Qq();
693 0x7: pxor_Pq_Qq();
694 }
695 // operand size (0x66)
696 0x1: decode OPCODE_OP_BOTTOM3 {
697 0x0: psubsb_Vo_Wo();
698 0x1: psubsw_Vo_Wo();
699 0x2: pminsw_Vo_Wo();
700 0x3: por_Vo_Wo();
701 0x4: paddsb_Vo_Wo();
702 0x5: paddsw_Vo_Wo();
703 0x6: pmaxsw_Vo_Wo();
704 0x7: pxor_Vo_Wo();
705 }
706 default: Inst::UD2();
707 }
708 0x1E: decode OPCODE_OP_BOTTOM3 {
709 // no prefix
710 0x0: decode OPCODE_OP_BOTTOM3 {
711 0x1: psllw_Pq_Qq();
712 0x2: pslld_Pq_Qq();
713 0x3: psllq_Pq_Qq();
714 0x4: pmuludq_Pq_Qq();
715 0x5: pmaddwd_Pq_Qq();
716 0x6: psadbw_Pq_Qq();
717 0x7: maskmovq_Pq_PRq();
718 default: Inst::UD2();
719 }
720 // operand size (0x66)
721 0x1: decode OPCODE_OP_BOTTOM3 {
722 0x1: psllw_Vo_Wo();
723 0x2: pslld_Vo_Wo();
724 0x3: psllq_Vo_Wo();
725 0x4: pmuludq_Vo_Wo();
726 0x5: pmaddwd_Vo_Wo();
727 0x6: psadbw_Vo_Wo();
728 0x7: maskmovdqu_Vo_VRo();
729 default: Inst::UD2();
730 }
731 // repne (0xF2)
732 0x8: decode OPCODE_OP_BOTTOM3 {
733 0x0: lddqu_Vo_Mo();
734 default: Inst::UD2();
735 }
736 default: Inst::UD2();
737 }
738 0x1F: decode LEGACY_DECODEVAL {
739 // no prefix
740 0x0: decode OPCODE_OP_BOTTOM3 {
741 0x0: psubb_Pq_Qq();
742 0x1: psubw_Pq_Qq();
743 0x2: psubd_Pq_Qq();
744 0x3: psubq_Pq_Qq();
745 0x4: paddb_Pq_Qq();
746 0x5: paddw_Pq_Qq();
747 0x6: paddd_Pq_Qq();
748 0x7: Inst::UD2();
749 }
750 // operand size (0x66)
751 0x1: decode OPCODE_OP_BOTTOM3 {
752 0x0: psubb_Vo_Wo();
753 0x1: psubw_Vo_Wo();
754 0x2: psubd_Vo_Wo();
755 0x3: psubq_Vo_Wo();
756 0x4: paddb_Vo_Wo();
757 0x5: paddw_Vo_Wo();
758 0x6: paddd_Vo_Wo();
759 0x7: Inst::UD2();
760 }
761 default: Inst::UD2();
762 }
763 default: FailUnimpl::twoByteOps();
764 }
765 }
766 default: M5InternalError::error(
767 {{"Unexpected first opcode byte in two byte opcode!"}});
768}