84////////////////////////////////////////////////////////////////////
85//
86// Decode the two byte opcodes
87//
880x2: decode OPCODE_PREFIXA {
89 0x0F: decode OPCODE_OP_TOP5 {
90 format WarnUnimpl {
91 0x00: decode OPCODE_OP_BOTTOM3 {
92 //0x00: group6();
93 0x00: decode MODRM_REG {
94 0x0: sldt_Mw_or_Rv();
95 0x1: str_Mw_or_Rv();
96 0x2: Inst::LLDT(Ew);
97 0x3: Inst::LTR(Ew);
98 0x4: verr_Mw_or_Rv();
99 0x5: verw_Mw_or_Rv();
100 //0x6: jmpe_Ev(); // IA-64
101 default: Inst::UD2();
102 }
103 //0x01: group7(); // Ugly, ugly, ugly...
104 0x01: decode MODRM_REG {
105 0x0: decode MODRM_MOD {
106 0x3: decode MODRM_RM {
107 0x1: vmcall();
108 0x2: vmlaunch();
109 0x3: vmresume();
110 0x4: vmxoff();
111 default: Inst::UD2();
112 }
113 default: sgdt_Ms();
114 }
115 0x1: decode MODRM_MOD {
116 0x3: decode MODRM_RM {
117 0x0: monitor();
118 0x1: mwait();
119 default: Inst::UD2();
120 }
121 default: sidt_Ms();
122 }
123 0x2: decode MODRM_MOD {
124 0x3: decode MODRM_RM {
125 0x0: xgetbv();
126 0x1: xsetbv();
127 }
128 default: decode MODE_SUBMODE {
129 0x0: Inst::LGDT(M);
130 default: decode OPSIZE {
131 // 16 bit operand sizes are special, but only
132 // in legacy and compatability modes.
133 0x2: Inst::LGDT_16(M);
134 default: Inst::LGDT(M);
135 }
136 }
137 }
138 0x3: decode MODRM_MOD {
139 0x3: decode MODRM_RM {
140 0x0: vmrun();
141 0x1: vmmcall();
142 0x2: vmload();
143 0x3: vmsave();
144 0x4: stgi();
145 0x5: clgi();
146 0x6: skinit();
147 0x7: invlpga();
148 }
149 default: decode MODE_SUBMODE {
150 0x0: Inst::LIDT(M);
151 default: decode OPSIZE {
152 // 16 bit operand sizes are special, but only
153 // in legacy and compatability modes.
154 0x2: Inst::LIDT_16(M);
155 default: Inst::LIDT(M);
156 }
157 }
158 }
159 0x4: decode MODRM_MOD {
160 0x3: Inst::SMSW(Rv);
161 default: Inst::SMSW(Mw);
162 }
163 0x6: Inst::LMSW(Ew);
164 0x7: decode MODRM_MOD {
165 0x3: decode MODRM_RM {
166 0x0: Inst::SWAPGS();
167 0x1: rdtscp();
168 default: Inst::UD2();
169 }
170 default: Inst::INVLPG(M);
171 }
172 }
173 0x02: lar_Gv_Ew();
174 0x03: lsl_Gv_Ew();
175 // sandpile.org doesn't seem to know what this is...? We'll
176 // use it for pseudo instructions. We've got 16 bits of space
177 // to play with so there can be quite a few pseudo
178 // instructions.
179 //0x04: loadall_or_reset_or_hang();
180 0x4: decode IMMEDIATE {
181 format BasicOperate {
182#if FULL_SYSTEM
183 0x00: m5arm({{
184 PseudoInst::arm(xc->tcBase());
185 }}, IsNonSpeculative);
186 0x01: m5quiesce({{
187 PseudoInst::quiesce(xc->tcBase());
188 }}, IsNonSpeculative);
189 0x02: m5quiesceNs({{
190 PseudoInst::quiesceNs(xc->tcBase(), Rdi);
191 }}, IsNonSpeculative);
192 0x03: m5quiesceCycle({{
193 PseudoInst::quiesceCycles(xc->tcBase(), Rdi);
194 }}, IsNonSpeculative);
195 0x04: m5quiesceTime({{
196 Rax = PseudoInst::quiesceTime(xc->tcBase());
197 }}, IsNonSpeculative);
198#endif
199 0x07: m5rpns({{
200 Rax = PseudoInst::rpns(xc->tcBase());
201 }}, IsNonSpeculative);
202 0x21: m5exit({{
203 PseudoInst::m5exit(xc->tcBase(), Rdi);
204 }}, IsNonSpeculative);
205#if FULL_SYSTEM
206 0x30: m5initparam({{
207 Rax = xc->tcBase()->getCpuPtr()->
208 system->init_param;
209 }}, IsNonSpeculative);
210 0x31: m5loadsymbol({{
211 PseudoInst::loadsymbol(xc->tcBase());
212 }}, IsNonSpeculative);
213#endif
214 0x40: m5resetstats({{
215 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi);
216 }}, IsNonSpeculative);
217 0x41: m5dumpstats({{
218 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi);
219 }}, IsNonSpeculative);
220 0x42: m5dumpresetstats({{
221 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi);
222 }}, IsNonSpeculative);
223 0x43: m5checkpoint({{
224 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi);
225 }}, IsNonSpeculative);
226#if FULL_SYSTEM
227 0x50: m5readfile({{
228 Rax = PseudoInst::readfile(
229 xc->tcBase(), Rdi, Rsi, Rdx);
230 }}, IsNonSpeculative);
231#endif
232 0x51: m5debugbreak({{
233 PseudoInst::debugbreak(xc->tcBase());
234 }}, IsNonSpeculative);
235 0x52: m5switchcpu({{
236 PseudoInst::switchcpu(xc->tcBase());
237 }}, IsNonSpeculative);
238#if FULL_SYSTEM
239 0x53: m5addsymbol({{
240 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi);
241 }}, IsNonSpeculative);
242#endif
243 0x54: m5panic({{
244 panic("M5 panic instruction called at pc=%#x.\n",
245 xc->readPC());
246 }}, IsNonSpeculative);
247 0x55: m5reserved1({{
248 warn("M5 reserved opcode 1 ignored.\n");
249 }}, IsNonSpeculative);
250 0x56: m5reserved2({{
251 warn("M5 reserved opcode 2 ignored.\n");
252 }}, IsNonSpeculative);
253 0x57: m5reserved3({{
254 warn("M5 reserved opcode 3 ignored.\n");
255 }}, IsNonSpeculative);
256 0x58: m5reserved4({{
257 warn("M5 reserved opcode 4 ignored.\n");
258 }}, IsNonSpeculative);
259 0x59: m5reserved5({{
260 warn("M5 reserved opcode 5 ignored.\n");
261 }}, IsNonSpeculative);
262 default: Inst::UD2();
263 }
264 }
265#if FULL_SYSTEM
266 0x05: decode MODE_MODE {
267 0x0: decode MODE_SUBMODE {
268 0x0: Inst::SYSCALL_64();
269 0x1: Inst::SYSCALL_COMPAT();
270 }
271 0x1: Inst::SYSCALL_LEGACY();
272 }
273#else
274 0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall);
275#endif
276 0x06: Inst::CLTS();
277 0x07: decode MODE_SUBMODE {
278 0x0: decode OPSIZE {
279 // Return to 64 bit mode.
280 0x8: Inst::SYSRET_TO_64();
281 // Return to compatibility mode.
282 default: Inst::SYSRET_TO_COMPAT();
283 }
284 default: Inst::SYSRET_NON_64();
285 }
286 }
287 0x01: decode OPCODE_OP_BOTTOM3 {
288 0x0: invd();
289 0x1: wbinvd();
290 0x2: Inst::UD2();
291 0x3: Inst::UD2();
292 0x4: Inst::UD2();
293 0x5: Inst::PREFETCH(Mb);
294 0x6: FailUnimpl::femms();
295 0x7: decode IMMEDIATE {
296 0x0C: pi2fw_Pq_Qq();
297 0x0D: pi2fd_Pq_Qq();
298 0x1C: pf2iw_Pq_Qq();
299 0x1D: pf2id_Pq_Qq();
300 0x8A: pfnacc_Pq_Qq();
301 0x8E: pfpnacc_Pq_Qq();
302 0x90: pfcmpge_Pq_Qq();
303 0x94: pfmin_Pq_Qq();
304 0x96: pfrcp_Pq_Qq();
305 0x97: pfrsqrt_Pq_Qq();
306 0x9A: Inst::PFSUB(Pq,Qq);
307 0x9E: pfadd_Pq_Qq();
308 0xA0: pfcmpgt_Pq_Qq();
309 0xA4: pfmax_Pq_Qq();
310 0xA6: pfrcpit1_Pq_Qq();
311 0xA7: pfrsqit1_Pq_Qq();
312 0xAA: Inst::PFSUBR(Pq,Qq);
313 0xAE: pfacc_Pq_Qq();
314 0xB0: pfcmpeq_Pq_Qq();
315 0xB4: Inst::PFMUL(Pq,Qq);
316 0xB6: pfrcpit2_Pq_Qq();
317 0xB7: Inst::PMULHRW(Pq,Qq);
318 0xBB: pswapd_Pq_Qq();
319 0xBF: pavgusb_Pq_Qq();
320 default: Inst::UD2();
321 }
322 }
323 format Inst{
324 0x02: decode LEGACY_DECODEVAL {
325 // no prefix
326 0x0: decode OPCODE_OP_BOTTOM3 {
327 0x0: MOVUPS(Vo,Wo);
328 0x1: MOVUPS(Wo,Vo);
329 0x2: decode MODRM_MOD {
330 0x3: MOVHLPS(Vps,VRq);
331 default: MOVLPS(Vps,Mq);
332 }
333 0x3: MOVLPS(Mq,Vps);
334 0x4: UNPCKLPS(Vps,Wq);
335 0x5: UNPCKHPS(Vps,Wq);
336 0x6: decode MODRM_MOD {
337 0x3: MOVLHPS(Vps,VRq);
338 default: MOVHPS(Vps,Mq);
339 }
340 0x7: MOVHPS(Mq,Vq);
341 }
342 // repe (0xF3)
343 0x4: decode OPCODE_OP_BOTTOM3 {
344 0x0: MOVSS(Vd,Wd);
345 0x1: MOVSS(Wd,Vd);
346 0x2: WarnUnimpl::movsldup_Vo_Wo();
347 0x6: WarnUnimpl::movshdup_Vo_Wo();
348 default: UD2();
349 }
350 // operand size (0x66)
351 0x1: decode OPCODE_OP_BOTTOM3 {
352 0x0: MOVUPD(Vo,Wo);
353 0x1: MOVUPD(Wo,Vo);
354 0x2: MOVLPD(Vq,Mq);
355 0x3: MOVLPD(Mq,Vq);
356 0x4: UNPCKLPD(Vo,Wq);
357 0x5: UNPCKHPD(Vo,Wo);
358 0x6: MOVHPD(Vq,Mq);
359 0x7: MOVHPD(Mq,Vq);
360 }
361 // repne (0xF2)
362 0x8: decode OPCODE_OP_BOTTOM3 {
363 0x0: MOVSD(Vq,Wq);
364 0x1: MOVSD(Wq,Vq);
365 0x2: MOVDDUP(Vo,Wq);
366 default: UD2();
367 }
368 default: UD2();
369 }
370 0x03: decode OPCODE_OP_BOTTOM3 {
371 //group16();
372 0x0: decode MODRM_REG {
373 0x0: WarnUnimpl::prefetch_nta();
374 0x1: PREFETCH_T0(Mb);
375 0x2: WarnUnimpl::prefetch_t1();
376 0x3: WarnUnimpl::prefetch_t2();
377 default: HINT_NOP();
378 }
379 0x1: HINT_NOP();
380 0x2: HINT_NOP();
381 0x3: HINT_NOP();
382 0x4: HINT_NOP();
383 0x5: HINT_NOP();
384 0x6: HINT_NOP();
385 0x7: HINT_NOP();
386 }
387 0x04: decode LEGACY_DECODEVAL {
388 // no prefix
389 0x0: decode OPCODE_OP_BOTTOM3 {
390 0x0: MOV(Rd,Cd);
391 0x1: MOV(Rd,Dd);
392 0x2: MOV(Cd,Rd);
393 0x3: MOV(Dd,Rd);
394 default: UD2();
395 }
396 default: UD2();
397 }
398 0x05: decode LEGACY_DECODEVAL {
399 // no prefix
400 0x0: decode OPCODE_OP_BOTTOM3 {
401 //These moves should really use size o (octword), but
402 //because they are split in two, they use q (quadword).
403 0x0: MOVAPS(Vq,Wq);
404 0x1: MOVAPS(Wq,Vq);
405 0x2: CVTPI2PS(Vq,Qq);
406 0x3: WarnUnimpl::movntps_Mo_Vo();
407 0x4: CVTTPS2PI(Pq,Wq);
408 0x5: CVTPS2PI(Pq,Wq);
409 0x6: UCOMISS(Vd,Wd);
410 0x7: COMISS(Vd,Wd);
411 }
412 // repe (0xF3)
413 0x4: decode OPCODE_OP_BOTTOM3 {
414 0x2: CVTSI2SS(Vd,Ed);
415 0x4: CVTTSS2SI(Gd,Wd);
416 0x5: CVTSS2SI(Gd,Wd);
417 default: UD2();
418 }
419 // operand size (0x66)
420 0x1: decode OPCODE_OP_BOTTOM3 {
421 0x0: MOVAPD(Vo,Wo);
422 0x1: MOVAPD(Wo,Vo);
423 0x2: CVTPI2PD(Vo,Qq);
424 0x3: WarnUnimpl::movntpd_Mo_Vo();
425 0x4: CVTTPD2PI(Pq,Wo);
426 0x5: CVTPD2PI(Pq,Wo);
427 0x6: UCOMISD(Vq,Wq);
428 0x7: COMISD(Vq,Wq);
429 }
430 // repne (0xF2)
431 0x8: decode OPCODE_OP_BOTTOM3 {
432 // The size of the V operand should be q, not dp
433 0x2: CVTSI2SD(Vdp,Edp);
434 // The size of the W operand should be q, not dp
435 0x4: CVTTSD2SI(Gdp,Wdp);
436 0x5: CVTSD2SI(Gd,Wq);
437 default: UD2();
438 }
439 default: UD2();
440 }
441 }
442 0x06: decode OPCODE_OP_BOTTOM3 {
443 0x0: Inst::WRMSR();
444 0x1: Inst::RDTSC();
445 0x2: Inst::RDMSR();
446 0x3: rdpmc();
447#if FULL_SYSTEM
448 0x4: sysenter();
449#else
450 0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall);
451#endif
452 0x5: sysexit();
453 0x6: Inst::UD2();
454 0x7: getsec();
455 }
456 0x07: decode OPCODE_OP_BOTTOM3 {
457 0x0: M5InternalError::error(
458 {{"Three byte opcode shouldn't be handled by "
459 "two_byte_opcodes.isa!"}});
460 0x2: M5InternalError::error(
461 {{"Three byte opcode shouldn't be handled by "
462 "two_byte_opcodes.isa!"}});
463 default: UD2();
464 }
465 format Inst {
466 0x08: decode OPCODE_OP_BOTTOM3 {
467 0x0: CMOVO(Gv,Ev);
468 0x1: CMOVNO(Gv,Ev);
469 0x2: CMOVB(Gv,Ev);
470 0x3: CMOVNB(Gv,Ev);
471 0x4: CMOVZ(Gv,Ev);
472 0x5: CMOVNZ(Gv,Ev);
473 0x6: CMOVBE(Gv,Ev);
474 0x7: CMOVNBE(Gv,Ev);
475 }
476 0x09: decode OPCODE_OP_BOTTOM3 {
477 0x0: CMOVS(Gv,Ev);
478 0x1: CMOVNS(Gv,Ev);
479 0x2: CMOVP(Gv,Ev);
480 0x3: CMOVNP(Gv,Ev);
481 0x4: CMOVL(Gv,Ev);
482 0x5: CMOVNL(Gv,Ev);
483 0x6: CMOVLE(Gv,Ev);
484 0x7: CMOVNLE(Gv,Ev);
485 }
486 0x0A: decode LEGACY_DECODEVAL {
487 // no prefix
488 0x0: decode OPCODE_OP_BOTTOM3 {
489 0x0: MOVMSKPS(Gd,VRo);
490 0x1: SQRTPS(Vo,Wo);
491 0x2: WarnUnimpl::rqsrtps_Vo_Wo();
492 0x3: WarnUnimpl::rcpps_Vo_Wo();
493 0x4: ANDPS(Vo,Wo);
494 0x5: ANDNPS(Vo,Wo);
495 0x6: ORPS(Vo,Wo);
496 0x7: XORPS(Vo,Wo);
497 }
498 // repe (0xF3)
499 0x4: decode OPCODE_OP_BOTTOM3 {
500 0x1: SQRTSS(Vd,Wd);
501 0x2: WarnUnimpl::rsqrtss_Vd_Wd();
502 0x3: WarnUnimpl::rcpss_Vd_Wd();
503 default: UD2();
504 }
505 // operand size (0x66)
506 0x1: decode OPCODE_OP_BOTTOM3 {
507 0x0: MOVMSKPD(Gd,VRo);
508 0x1: SQRTPD(Vo,Wo);
509 0x4: ANDPD(Vo,Wo);
510 0x5: ANDNPD(Vo,Wo);
511 0x6: ORPD(Vo,Wo);
512 0x7: XORPD(Vo,Wo);
513 default: UD2();
514 }
515 // repne (0xF2)
516 0x8: decode OPCODE_OP_BOTTOM3 {
517 0x1: SQRTSD(Vq,Wq);
518 default: UD2();
519 }
520 default: UD2();
521 }
522 0x0B: decode LEGACY_DECODEVAL {
523 // no prefix
524 0x0: decode OPCODE_OP_BOTTOM3 {
525 0x0: ADDPS(Vo,Wo);
526 0x1: MULPS(Vo,Wo);
527 0x2: CVTPS2PD(Vo,Wq);
528 0x3: CVTDQ2PS(Vo,Wo);
529 0x4: SUBPS(Vo,Wo);
530 0x5: MINPS(Vo,Wo);
531 0x6: DIVPS(Vo,Wo);
532 0x7: MAXPS(Vo,Wo);
533 }
534 // repe (0xF3)
535 0x4: decode OPCODE_OP_BOTTOM3 {
536 0x0: ADDSS(Vd,Wd);
537 0x1: MULSS(Vd,Wd);
538 0x2: CVTSS2SD(Vq,Wd);
539 0x3: CVTTPS2DQ(Vo,Wo);
540 0x4: SUBSS(Vd,Wd);
541 0x5: MINSS(Vd,Wd);
542 0x6: DIVSS(Vd,Wd);
543 0x7: MAXSS(Vd,Wd);
544 }
545 // operand size (0x66)
546 0x1: decode OPCODE_OP_BOTTOM3 {
547 0x0: ADDPD(Vo,Wo);
548 0x1: MULPD(Vo,Wo);
549 0x2: CVTPD2PS(Vo,Wo);
550 0x3: CVTPS2DQ(Vo,Wo);
551 0x4: SUBPD(Vo,Wo);
552 0x5: MINPD(Vo,Wo);
553 0x6: DIVPD(Vo,Wo);
554 0x7: MAXPD(Vo,Wo);
555 }
556 // repne (0xF2)
557 0x8: decode OPCODE_OP_BOTTOM3 {
558 0x0: ADDSD(Vq,Wq);
559 0x1: MULSD(Vq,Wq);
560 0x2: CVTSD2SS(Vd,Wq);
561 0x4: SUBSD(Vq,Wq);
562 0x5: MINSD(Vq,Wq);
563 0x6: DIVSD(Vq,Wq);
564 0x7: MAXSD(Vq,Wq);
565 default: UD2();
566 }
567 default: UD2();
568 }
569 0x0C: decode LEGACY_DECODEVAL {
570 // no prefix
571 0x0: decode OPCODE_OP_BOTTOM3 {
572 0x0: PUNPCKLBW(Pq,Qd);
573 0x1: PUNPCKLWD(Pq,Qd);
574 0x2: PUNPCKLDQ(Pq,Qd);
575 0x3: PACKSSWB(Pq,Qq);
576 0x4: PCMPGTB(Pq,Qq);
577 0x5: PCMPGTW(Pq,Qq);
578 0x6: PCMPGTD(Pq,Qq);
579 0x7: PACKUSWB(Pq,Qq);
580 }
581 // operand size (0x66)
582 0x1: decode OPCODE_OP_BOTTOM3 {
583 0x0: PUNPCKLBW(Vo,Wq);
584 0x1: PUNPCKLWD(Vo,Wq);
585 0x2: PUNPCKLDQ(Vo,Wq);
586 0x3: PACKSSWB(Vo,Wo);
587 0x4: PCMPGTB(Vo,Wo);
588 0x5: PCMPGTW(Vo,Wo);
589 0x6: PCMPGTD(Vo,Wo);
590 0x7: PACKUSWB(Vo,Wo);
591 }
592 default: UD2();
593 }
594 0x0D: decode LEGACY_DECODEVAL {
595 // no prefix
596 0x0: decode OPCODE_OP_BOTTOM3 {
597 0x0: PUNPCKHBW(Pq,Qq);
598 0x1: PUNPCKHWD(Pq,Qq);
599 0x2: PUNPCKHDQ(Pq,Qq);
600 0x3: PACKSSDW(Pq,Qq);
601 0x6: MOVD(Pq,Edp);
602 0x7: MOVQ(Pq,Qq);
603 default: UD2();
604 }
605 // repe (0xF3)
606 0x4: decode OPCODE_OP_BOTTOM3 {
607 0x7: MOVDQU(Vo,Wo);
608 default: UD2();
609 }
610 // operand size (0x66)
611 0x1: decode OPCODE_OP_BOTTOM3 {
612 0x0: PUNPCKHBW(Vo,Wo);
613 0x1: PUNPCKHWD(Vo,Wo);
614 0x2: PUNPCKHDQ(Vo,Wo);
615 0x3: PACKSSDW(Vo,Wo);
616 0x4: PUNPCKLQDQ(Vo,Wq);
617 0x5: PUNPCKHQDQ(Vo,Wq);
618 0x6: MOVD(Vo,Edp);
619 0x7: MOVDQA(Vo,Wo);
620 }
621 default: UD2();
622 }
623 0x0E: decode LEGACY_DECODEVAL {
624 // no prefix
625 0x0: decode OPCODE_OP_BOTTOM3 {
626 0x0: PSHUFW(Pq,Qq,Ib);
627 //0x1: group12_pshimw();
628 0x1: decode MODRM_REG {
629 0x2: PSRLW(PRq,Ib);
630 0x4: PSRAW(PRq,Ib);
631 0x6: PSLLW(PRq,Ib);
632 default: UD2();
633 }
634 //0x2: group13_pshimd();
635 0x2: decode MODRM_REG {
636 0x2: PSRLD(PRq,Ib);
637 0x4: PSRAD(PRq,Ib);
638 0x6: PSLLD(PRq,Ib);
639 default: UD2();
640 }
641 //0x3: group14_pshimq();
642 0x3: decode MODRM_REG {
643 0x2: PSRLQ(PRq,Ib);
644 0x6: PSLLQ(PRq,Ib);
645 default: Inst::UD2();
646 }
647 0x4: Inst::PCMPEQB(Pq,Qq);
648 0x5: Inst::PCMPEQW(Pq,Qq);
649 0x6: Inst::PCMPEQD(Pq,Qq);
650 0x7: WarnUnimpl::emms();
651 }
652 // repe (0xF3)
653 0x4: decode OPCODE_OP_BOTTOM3 {
654 0x0: PSHUFHW(Vo,Wo,Ib);
655 default: UD2();
656 }
657 // operand size (0x66)
658 0x1: decode OPCODE_OP_BOTTOM3 {
659 0x0: PSHUFD(Vo,Wo,Ib);
660 //0x1: group12_pshimw();
661 0x1: decode MODRM_REG {
662 0x2: PSRLW(VRo,Ib);
663 0x4: PSRAW(VRo,Ib);
664 0x6: PSLLW(VRo,Ib);
665 }
666 //0x2: group13_pshimd();
667 0x2: decode MODRM_REG {
668 0x2: PSRLD(VRo,Ib);
669 0x4: PSRAD(VRo,Ib);
670 0x6: PSLLD(VRo,Ib);
671 default: UD2();
672 }
673 //0x3: group14_pshimq();
674 0x3: decode MODRM_REG {
675 0x2: PSRLQ(VRo,Ib);
676 0x3: PSRLDQ(VRo,Ib);
677 0x6: PSLLQ(VRo,Ib);
678 0x7: PSLLDQ(VRo,Ib);
679 default: UD2();
680 }
681 0x4: PCMPEQB(Vo,Wo);
682 0x5: PCMPEQW(Vo,Wo);
683 0x6: PCMPEQD(Vo,Wo);
684 default: UD2();
685 }
686 // repne (0xF2)
687 0x8: decode OPCODE_OP_BOTTOM3 {
688 0x0: PSHUFLW(Vo,Wo,Ib);
689 default: UD2();
690 }
691 default: UD2();
692 }
693 0x0F: decode LEGACY_DECODEVAL {
694 // no prefix
695 0x0: decode OPCODE_OP_BOTTOM3 {
696 0x0: WarnUnimpl::vmread_Edp_Gdp();
697 0x1: WarnUnimpl::vmwrite_Gdp_Edp();
698 0x6: MOVD(Edp,Pdp);
699 0x7: MOVQ(Qq,Pq);
700 default: UD2();
701 }
702 // repe (0xF3)
703 0x4: decode OPCODE_OP_BOTTOM3 {
704 0x6: MOVQ(Vq,Wq);
705 0x7: MOVDQU(Wo,Vo);
706 default: UD2();
707 }
708 // operand size (0x66)
709 0x1: decode OPCODE_OP_BOTTOM3 {
710 0x4: HADDPD(Vo,Wo);
711 0x5: WarnUnimpl::hsubpd_Vo_Wo();
712 0x6: MOVD(Edp,Vd);
713 0x7: MOVDQA(Wo,Vo);
714 default: UD2();
715 }
716 // repne (0xF2)
717 0x8: decode OPCODE_OP_BOTTOM3 {
718 0x4: WarnUnimpl::haddps_Vo_Wo();
719 0x5: WarnUnimpl::hsubps_Vo_Wo();
720 default: UD2();
721 }
722 default: UD2();
723 }
724 0x10: decode OPCODE_OP_BOTTOM3 {
725 0x0: JO(Jz);
726 0x1: JNO(Jz);
727 0x2: JB(Jz);
728 0x3: JNB(Jz);
729 0x4: JZ(Jz);
730 0x5: JNZ(Jz);
731 0x6: JBE(Jz);
732 0x7: JNBE(Jz);
733 }
734 0x11: decode OPCODE_OP_BOTTOM3 {
735 0x0: JS(Jz);
736 0x1: JNS(Jz);
737 0x2: JP(Jz);
738 0x3: JNP(Jz);
739 0x4: JL(Jz);
740 0x5: JNL(Jz);
741 0x6: JLE(Jz);
742 0x7: JNLE(Jz);
743 }
744 0x12: decode OPCODE_OP_BOTTOM3 {
745 0x0: SETO(Eb);
746 0x1: SETNO(Eb);
747 0x2: SETB(Eb);
748 0x3: SETNB(Eb);
749 0x4: SETZ(Eb);
750 0x5: SETNZ(Eb);
751 0x6: SETBE(Eb);
752 0x7: SETNBE(Eb);
753 }
754 0x13: decode OPCODE_OP_BOTTOM3 {
755 0x0: SETS(Eb);
756 0x1: SETNS(Eb);
757 0x2: SETP(Eb);
758 0x3: SETNP(Eb);
759 0x4: SETL(Eb);
760 0x5: SETNL(Eb);
761 0x6: SETLE(Eb);
762 0x7: SETNLE(Eb);
763 }
764 }
765 0x14: decode OPCODE_OP_BOTTOM3 {
766 0x0: push_fs();
767 0x1: pop_fs();
768 0x2: CPUIDInst::CPUID({{
769 CpuidResult result;
770 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0),
771 bits(Rcx, 31, 0), result);
772 Rax = result.rax;
773 Rbx = result.rbx;
774 Rcx = result.rcx;
775 Rdx = result.rdx;
776 }});
777 0x3: Inst::BT(Ev,Gv);
778 0x4: Inst::SHLD(Ev,Gv,Ib);
779 0x5: Inst::SHLD(Ev,Gv);
780 default: Inst::UD2();
781 }
782 0x15: decode OPCODE_OP_BOTTOM3 {
783 0x0: push_gs();
784 0x1: pop_gs();
785 0x2: rsm_smm();
786 0x3: Inst::BTS(Ev,Gv);
787 0x4: Inst::SHRD(Ev,Gv,Ib);
788 0x5: Inst::SHRD(Ev,Gv);
789 //0x6: group15();
790 0x6: decode MODRM_MOD {
791 0x3: decode MODRM_REG {
792 0x5: BasicOperate::LFENCE(
793 {{/*Nothing*/}}, IsReadBarrier);
794 0x6: BasicOperate::MFENCE(
795 {{/*Nothing*/}}, IsMemBarrier);
796 0x7: BasicOperate::SFENCE(
797 {{/*Nothing*/}}, IsWriteBarrier);
798 default: Inst::UD2();
799 }
800 default: decode MODRM_REG {
801 0x0: fxsave();
802 0x1: fxrstor();
803 0x2: Inst::LDMXCSR(Md);
804 0x3: Inst::STMXCSR(Md);
805 0x4: xsave();
806 0x5: xrstor();
807 0x6: Inst::UD2();
808 0x7: clflush();
809 }
810 }
811 0x7: Inst::IMUL(Gv,Ev);
812 }
813 format Inst {
814 0x16: decode OPCODE_OP_BOTTOM3 {
815 0x0: CMPXCHG(Eb,Gb);
816 0x1: CMPXCHG(Ev,Gv);
817 0x2: WarnUnimpl::lss_Gz_Mp();
818 0x3: BTR(Ev,Gv);
819 0x4: WarnUnimpl::lfs_Gz_Mp();
820 0x5: WarnUnimpl::lgs_Gz_Mp();
821 //The size of the second operand in these instructions
822 //should really be "b" or "w", but it's set to v in order
823 //to have a consistent register size. This shouldn't
824 //affect behavior.
825 0x6: MOVZX_B(Gv,Ev);
826 0x7: MOVZX_W(Gv,Ev);
827 }
828 0x17: decode OPCODE_OP_BOTTOM3 {
829 0x0: decode LEGACY_REP {
830 0x0: WarnUnimpl::jmpe_Jz();
831 0x1: WarnUnimpl::popcnt_Gv_Ev();
832 }
833 //0x1: group10_UD2();
834 0x1: UD2();
835 //0x2: group8_Ev_Ib();
836 0x2: decode MODRM_REG {
837 0x4: BT(Ev,Ib);
838 0x5: BTS(Ev,Ib);
839 0x6: BTR(Ev,Ib);
840 0x7: BTC(Ev,Ib);
841 default: UD2();
842 }
843 0x3: BTC(Ev,Gv);
844 0x4: BSF(Gv,Ev);
845 0x5: BSR(Gv,Ev);
846 //The size of the second operand in these instructions
847 //should really be "b" or "w", but it's set to v in order
848 //to have a consistent register size. This shouldn't
849 //affect behavior.
850 0x6: MOVSX_B(Gv,Ev);
851 0x7: MOVSX_W(Gv,Ev);
852 }
853 0x18: decode OPCODE_OP_BOTTOM3 {
854 0x0: XADD(Eb,Gb);
855 0x1: XADD(Ev,Gv);
856 //0x7: group9();
857 0x7: decode MODRM_REG {
858 //Also CMPXCHG16B
859 0x1: CMPXCHG8B(Mdp);
860 0x6: decode LEGACY_OP {
861 0x1: WarnUnimpl::vmclear_Mq();
862 default: decode LEGACY_REP {
863 0x1: WarnUnimpl::vmxon_Mq();
864 0x0: WarnUnimpl::vmptrld_Mq();
865 }
866 }
867 0x7: WarnUnimpl::vmptrst_Mq();
868 default: UD2();
869 }
870 default: decode LEGACY_DECODEVAL {
871 // no prefix
872 0x0: decode OPCODE_OP_BOTTOM3 {
873 0x2: CMPPS(Vo,Wo,Ib);
874 0x3: MOVNTI(Mdp,Gdp);
875 0x4: PINSRW(Pq,Ew,Ib);
876 0x5: PEXTRW(Gd,PRq,Ib);
877 0x6: SHUFPS(Vps,Wps,Ib);
878 }
879 // repe (0xF3)
880 0x4: decode OPCODE_OP_BOTTOM3 {
881 0x2: CMPSS(Vd,Wd,Ib);
882 default: UD2();
883 }
884 // operand size (0x66)
885 0x1: decode OPCODE_OP_BOTTOM3 {
886 0x2: CMPPD(Vo,Wo,Ib);
887 0x4: PINSRW(Vdw,Ew,Ib);
888 0x5: PEXTRW(Gd,VRdq,Ib);
889 0x6: SHUFPD(Vpd,Wpd,Ib);
890 default: UD2();
891 }
892 // repne (0xF2)
893 0x8: decode OPCODE_OP_BOTTOM3 {
894 0x2: CMPSD(Vq,Wq,Ib);
895 default: UD2();
896 }
897 default: UD2();
898 }
899 }
900 0x19: decode OPSIZE {
901 4: BSWAP_D(Bd);
902 8: BSWAP_Q(Bq);
903 default: UD2();
904 }
905 0x1A: decode LEGACY_DECODEVAL {
906 // no prefix
907 0x0: decode OPCODE_OP_BOTTOM3 {
908 0x1: PSRLW(Pq,Qq);
909 0x2: PSRLD(Pq,Qq);
910 0x3: PSRLQ(Pq,Qq);
911 0x4: PADDQ(Pq,Qq);
912 0x5: PMULLW(Pq,Qq);
913 0x7: PMOVMSKB(Gd,PRq);
914 default: UD2();
915 }
916 // repe (0xF3)
917 0x4: decode OPCODE_OP_BOTTOM3 {
918 0x6: MOVQ2DQ(Vo,PRq);
919 default: UD2();
920 }
921 // operand size (0x66)
922 0x1: decode OPCODE_OP_BOTTOM3 {
923 0x0: WarnUnimpl::addsubpd_Vo_Wo();
924 0x1: PSRLW(Vo,Wo);
925 0x2: PSRLD(Vo,Wo);
926 0x3: PSRLQ(Vo,Wo);
927 0x4: PADDQ(Vo,Wo);
928 0x5: PMULLW(Vo,Wo);
929 0x6: MOVQ(Wq,Vq);
930 0x7: PMOVMSKB(Gd,VRo);
931 }
932 // repne (0xF2)
933 0x8: decode OPCODE_OP_BOTTOM3 {
934 0x0: WarnUnimpl::addsubps_Vo_Wo();
935 0x6: MOVDQ2Q(Pq,VRq);
936 default: UD2();
937 }
938 default: UD2();
939 }
940 0x1B: decode LEGACY_DECODEVAL {
941 // no prefix
942 0x0: decode OPCODE_OP_BOTTOM3 {
943 0x0: PSUBUSB(Pq,Qq);
944 0x1: PSUBUSW(Pq,Qq);
945 0x2: PMINUB(Pq,Qq);
946 0x3: PAND(Pq,Qq);
947 0x4: PADDUSB(Pq,Qq);
948 0x5: PADDUSW(Pq,Qq);
949 0x6: PMAXUB(Pq,Qq);
950 0x7: PANDN(Pq,Qq);
951 }
952 // operand size (0x66)
953 0x1: decode OPCODE_OP_BOTTOM3 {
954 0x0: PSUBUSB(Vo,Wo);
955 0x1: PSUBUSW(Vo,Wo);
956 0x2: PMINUB(Vo,Wo);
957 0x3: PAND(Vo,Wo);
958 0x4: PADDUSB(Vo,Wo);
959 0x5: PADDUSW(Vo,Wo);
960 0x6: PMAXUB(Vo,Wo);
961 0x7: PANDN(Vo,Wo);
962 }
963 default: UD2();
964 }
965 0x1C: decode LEGACY_DECODEVAL {
966 // no prefix
967 0x0: decode OPCODE_OP_BOTTOM3 {
968 0x0: PAVGB(Pq,Qq);
969 0x1: PSRAW(Pq,Qq);
970 0x2: PSRAD(Pq,Qq);
971 0x3: PAVGW(Pq,Qq);
972 0x4: PMULHUW(Pq,Qq);
973 0x5: PMULHW(Pq,Qq);
974 0x7: WarnUnimpl::movntq_Mq_Pq();
975 default: UD2();
976 }
977 // repe (0xF3)
978 0x4: decode OPCODE_OP_BOTTOM3 {
979 0x6: CVTDQ2PD(Vo,Wq);
980 default: UD2();
981 }
982 // operand size (0x66)
983 0x1: decode OPCODE_OP_BOTTOM3 {
984 0x0: PAVGB(Vo,Wo);
985 0x1: PSRAW(Vo,Wo);
986 0x2: PSRAD(Vo,Wo);
987 0x3: PAVGW(Vo,Wo);
988 0x4: PMULHUW(Vo,Wo);
989 0x5: PMULHW(Vo,Wo);
990 0x6: CVTTPD2DQ(Vo,Wo);
991 0x7: WarnUnimpl::movntdq_Mo_Vo();
992 }
993 // repne (0xF2)
994 0x8: decode OPCODE_OP_BOTTOM3 {
995 0x6: CVTPD2DQ(Vo,Wo);
996 default: UD2();
997 }
998 default: UD2();
999 }
1000 0x1D: decode LEGACY_DECODEVAL {
1001 // no prefix
1002 0x0: decode OPCODE_OP_BOTTOM3 {
1003 0x0: PSUBSB(Pq,Qq);
1004 0x1: PSUBSW(Pq,Qq);
1005 0x2: PMINSW(Pq,Qq);
1006 0x3: POR(Pq,Qq);
1007 0x4: PADDSB(Pq,Qq);
1008 0x5: PADDSW(Pq,Qq);
1009 0x6: PMAXSW(Pq,Qq);
1010 0x7: PXOR(Pq,Qq);
1011 }
1012 // operand size (0x66)
1013 0x1: decode OPCODE_OP_BOTTOM3 {
1014 0x0: PSUBSB(Vo,Wo);
1015 0x1: PSUBSW(Vo,Wo);
1016 0x2: PMINSW(Vo,Wo);
1017 0x3: POR(Vo,Wo);
1018 0x4: PADDSB(Vo,Wo);
1019 0x5: PADDSW(Vo,Wo);
1020 0x6: PMAXSW(Vo,Wo);
1021 0x7: PXOR(Vo,Wo);
1022 }
1023 default: UD2();
1024 }
1025 0x1E: decode LEGACY_DECODEVAL {
1026 // no prefix
1027 0x0: decode OPCODE_OP_BOTTOM3 {
1028 0x1: PSLLW(Pq,Qq);
1029 0x2: PSLLD(Pq,Qq);
1030 0x3: PSLLQ(Pq,Qq);
1031 0x4: PMULUDQ(Pq,Qq);
1032 0x5: PMADDWD(Pq,Qq);
1033 0x6: PSADBW(Pq,Qq);
1034 0x7: MASKMOVQ(Pq,PRq);
1035 default: UD2();
1036 }
1037 // operand size (0x66)
1038 0x1: decode OPCODE_OP_BOTTOM3 {
1039 0x1: PSLLW(Vo,Wo);
1040 0x2: PSLLD(Vo,Wo);
1041 0x3: PSLLQ(Vo,Wo);
1042 0x4: PMULUDQ(Vo,Wo);
1043 0x5: PMADDWD(Vo,Wo);
1044 0x6: PSADBW(Vo,Wo);
1045 0x7: MASKMOVDQU(Vo,VRo);
1046 default: UD2();
1047 }
1048 // repne (0xF2)
1049 0x8: decode OPCODE_OP_BOTTOM3 {
1050 0x0: WarnUnimpl::lddqu_Vo_Mo();
1051 default: UD2();
1052 }
1053 default: UD2();
1054 }
1055 0x1F: decode LEGACY_DECODEVAL {
1056 // no prefix
1057 0x0: decode OPCODE_OP_BOTTOM3 {
1058 0x0: PSUBB(Pq,Qq);
1059 0x1: PSUBW(Pq,Qq);
1060 0x2: PSUBD(Pq,Qq);
1061 0x3: PSUBQ(Pq,Qq);
1062 0x4: PADDB(Pq,Qq);
1063 0x5: PADDW(Pq,Qq);
1064 0x6: PADDD(Pq,Qq);
1065 0x7: UD2();
1066 }
1067 // operand size (0x66)
1068 0x1: decode OPCODE_OP_BOTTOM3 {
1069 0x0: PSUBB(Vo,Wo);
1070 0x1: PSUBW(Vo,Wo);
1071 0x2: PSUBD(Vo,Wo);
1072 0x3: PSUBQ(Vo,Wo);
1073 0x4: PADDB(Vo,Wo);
1074 0x5: PADDW(Vo,Wo);
1075 0x6: PADDD(Vo,Wo);
1076 0x7: UD2();
1077 }
1078 default: UD2();
1079 }
1080 }
1081 default: FailUnimpl::twoByteOps();
1082 }
1083 }
1084 default: M5InternalError::error(
1085 {{"Unexpected first opcode byte in two byte opcode!"}});
1086}
| 41////////////////////////////////////////////////////////////////////
42//
43// Decode the two byte opcodes
44//
450x2: decode OPCODE_PREFIXA {
46 0x0F: decode OPCODE_OP_TOP5 {
47 format WarnUnimpl {
48 0x00: decode OPCODE_OP_BOTTOM3 {
49 //0x00: group6();
50 0x00: decode MODRM_REG {
51 0x0: sldt_Mw_or_Rv();
52 0x1: str_Mw_or_Rv();
53 0x2: Inst::LLDT(Ew);
54 0x3: Inst::LTR(Ew);
55 0x4: verr_Mw_or_Rv();
56 0x5: verw_Mw_or_Rv();
57 //0x6: jmpe_Ev(); // IA-64
58 default: Inst::UD2();
59 }
60 //0x01: group7(); // Ugly, ugly, ugly...
61 0x01: decode MODRM_REG {
62 0x0: decode MODRM_MOD {
63 0x3: decode MODRM_RM {
64 0x1: vmcall();
65 0x2: vmlaunch();
66 0x3: vmresume();
67 0x4: vmxoff();
68 default: Inst::UD2();
69 }
70 default: sgdt_Ms();
71 }
72 0x1: decode MODRM_MOD {
73 0x3: decode MODRM_RM {
74 0x0: monitor();
75 0x1: mwait();
76 default: Inst::UD2();
77 }
78 default: sidt_Ms();
79 }
80 0x2: decode MODRM_MOD {
81 0x3: decode MODRM_RM {
82 0x0: xgetbv();
83 0x1: xsetbv();
84 }
85 default: decode MODE_SUBMODE {
86 0x0: Inst::LGDT(M);
87 default: decode OPSIZE {
88 // 16 bit operand sizes are special, but only
89 // in legacy and compatability modes.
90 0x2: Inst::LGDT_16(M);
91 default: Inst::LGDT(M);
92 }
93 }
94 }
95 0x3: decode MODRM_MOD {
96 0x3: decode MODRM_RM {
97 0x0: vmrun();
98 0x1: vmmcall();
99 0x2: vmload();
100 0x3: vmsave();
101 0x4: stgi();
102 0x5: clgi();
103 0x6: skinit();
104 0x7: invlpga();
105 }
106 default: decode MODE_SUBMODE {
107 0x0: Inst::LIDT(M);
108 default: decode OPSIZE {
109 // 16 bit operand sizes are special, but only
110 // in legacy and compatability modes.
111 0x2: Inst::LIDT_16(M);
112 default: Inst::LIDT(M);
113 }
114 }
115 }
116 0x4: decode MODRM_MOD {
117 0x3: Inst::SMSW(Rv);
118 default: Inst::SMSW(Mw);
119 }
120 0x6: Inst::LMSW(Ew);
121 0x7: decode MODRM_MOD {
122 0x3: decode MODRM_RM {
123 0x0: Inst::SWAPGS();
124 0x1: rdtscp();
125 default: Inst::UD2();
126 }
127 default: Inst::INVLPG(M);
128 }
129 }
130 0x02: lar_Gv_Ew();
131 0x03: lsl_Gv_Ew();
132 // sandpile.org doesn't seem to know what this is...? We'll
133 // use it for pseudo instructions. We've got 16 bits of space
134 // to play with so there can be quite a few pseudo
135 // instructions.
136 //0x04: loadall_or_reset_or_hang();
137 0x4: decode IMMEDIATE {
138 format BasicOperate {
139#if FULL_SYSTEM
140 0x00: m5arm({{
141 PseudoInst::arm(xc->tcBase());
142 }}, IsNonSpeculative);
143 0x01: m5quiesce({{
144 PseudoInst::quiesce(xc->tcBase());
145 }}, IsNonSpeculative);
146 0x02: m5quiesceNs({{
147 PseudoInst::quiesceNs(xc->tcBase(), Rdi);
148 }}, IsNonSpeculative);
149 0x03: m5quiesceCycle({{
150 PseudoInst::quiesceCycles(xc->tcBase(), Rdi);
151 }}, IsNonSpeculative);
152 0x04: m5quiesceTime({{
153 Rax = PseudoInst::quiesceTime(xc->tcBase());
154 }}, IsNonSpeculative);
155#endif
156 0x07: m5rpns({{
157 Rax = PseudoInst::rpns(xc->tcBase());
158 }}, IsNonSpeculative);
159 0x21: m5exit({{
160 PseudoInst::m5exit(xc->tcBase(), Rdi);
161 }}, IsNonSpeculative);
162#if FULL_SYSTEM
163 0x30: m5initparam({{
164 Rax = xc->tcBase()->getCpuPtr()->
165 system->init_param;
166 }}, IsNonSpeculative);
167 0x31: m5loadsymbol({{
168 PseudoInst::loadsymbol(xc->tcBase());
169 }}, IsNonSpeculative);
170#endif
171 0x40: m5resetstats({{
172 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi);
173 }}, IsNonSpeculative);
174 0x41: m5dumpstats({{
175 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi);
176 }}, IsNonSpeculative);
177 0x42: m5dumpresetstats({{
178 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi);
179 }}, IsNonSpeculative);
180 0x43: m5checkpoint({{
181 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi);
182 }}, IsNonSpeculative);
183#if FULL_SYSTEM
184 0x50: m5readfile({{
185 Rax = PseudoInst::readfile(
186 xc->tcBase(), Rdi, Rsi, Rdx);
187 }}, IsNonSpeculative);
188#endif
189 0x51: m5debugbreak({{
190 PseudoInst::debugbreak(xc->tcBase());
191 }}, IsNonSpeculative);
192 0x52: m5switchcpu({{
193 PseudoInst::switchcpu(xc->tcBase());
194 }}, IsNonSpeculative);
195#if FULL_SYSTEM
196 0x53: m5addsymbol({{
197 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi);
198 }}, IsNonSpeculative);
199#endif
200 0x54: m5panic({{
201 panic("M5 panic instruction called at pc=%#x.\n",
202 xc->readPC());
203 }}, IsNonSpeculative);
204 0x55: m5reserved1({{
205 warn("M5 reserved opcode 1 ignored.\n");
206 }}, IsNonSpeculative);
207 0x56: m5reserved2({{
208 warn("M5 reserved opcode 2 ignored.\n");
209 }}, IsNonSpeculative);
210 0x57: m5reserved3({{
211 warn("M5 reserved opcode 3 ignored.\n");
212 }}, IsNonSpeculative);
213 0x58: m5reserved4({{
214 warn("M5 reserved opcode 4 ignored.\n");
215 }}, IsNonSpeculative);
216 0x59: m5reserved5({{
217 warn("M5 reserved opcode 5 ignored.\n");
218 }}, IsNonSpeculative);
219 default: Inst::UD2();
220 }
221 }
222#if FULL_SYSTEM
223 0x05: decode MODE_MODE {
224 0x0: decode MODE_SUBMODE {
225 0x0: Inst::SYSCALL_64();
226 0x1: Inst::SYSCALL_COMPAT();
227 }
228 0x1: Inst::SYSCALL_LEGACY();
229 }
230#else
231 0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall);
232#endif
233 0x06: Inst::CLTS();
234 0x07: decode MODE_SUBMODE {
235 0x0: decode OPSIZE {
236 // Return to 64 bit mode.
237 0x8: Inst::SYSRET_TO_64();
238 // Return to compatibility mode.
239 default: Inst::SYSRET_TO_COMPAT();
240 }
241 default: Inst::SYSRET_NON_64();
242 }
243 }
244 0x01: decode OPCODE_OP_BOTTOM3 {
245 0x0: invd();
246 0x1: wbinvd();
247 0x2: Inst::UD2();
248 0x3: Inst::UD2();
249 0x4: Inst::UD2();
250 0x5: Inst::PREFETCH(Mb);
251 0x6: FailUnimpl::femms();
252 0x7: decode IMMEDIATE {
253 0x0C: pi2fw_Pq_Qq();
254 0x0D: pi2fd_Pq_Qq();
255 0x1C: pf2iw_Pq_Qq();
256 0x1D: pf2id_Pq_Qq();
257 0x8A: pfnacc_Pq_Qq();
258 0x8E: pfpnacc_Pq_Qq();
259 0x90: pfcmpge_Pq_Qq();
260 0x94: pfmin_Pq_Qq();
261 0x96: pfrcp_Pq_Qq();
262 0x97: pfrsqrt_Pq_Qq();
263 0x9A: Inst::PFSUB(Pq,Qq);
264 0x9E: pfadd_Pq_Qq();
265 0xA0: pfcmpgt_Pq_Qq();
266 0xA4: pfmax_Pq_Qq();
267 0xA6: pfrcpit1_Pq_Qq();
268 0xA7: pfrsqit1_Pq_Qq();
269 0xAA: Inst::PFSUBR(Pq,Qq);
270 0xAE: pfacc_Pq_Qq();
271 0xB0: pfcmpeq_Pq_Qq();
272 0xB4: Inst::PFMUL(Pq,Qq);
273 0xB6: pfrcpit2_Pq_Qq();
274 0xB7: Inst::PMULHRW(Pq,Qq);
275 0xBB: pswapd_Pq_Qq();
276 0xBF: pavgusb_Pq_Qq();
277 default: Inst::UD2();
278 }
279 }
280 format Inst{
281 0x02: decode LEGACY_DECODEVAL {
282 // no prefix
283 0x0: decode OPCODE_OP_BOTTOM3 {
284 0x0: MOVUPS(Vo,Wo);
285 0x1: MOVUPS(Wo,Vo);
286 0x2: decode MODRM_MOD {
287 0x3: MOVHLPS(Vps,VRq);
288 default: MOVLPS(Vps,Mq);
289 }
290 0x3: MOVLPS(Mq,Vps);
291 0x4: UNPCKLPS(Vps,Wq);
292 0x5: UNPCKHPS(Vps,Wq);
293 0x6: decode MODRM_MOD {
294 0x3: MOVLHPS(Vps,VRq);
295 default: MOVHPS(Vps,Mq);
296 }
297 0x7: MOVHPS(Mq,Vq);
298 }
299 // repe (0xF3)
300 0x4: decode OPCODE_OP_BOTTOM3 {
301 0x0: MOVSS(Vd,Wd);
302 0x1: MOVSS(Wd,Vd);
303 0x2: WarnUnimpl::movsldup_Vo_Wo();
304 0x6: WarnUnimpl::movshdup_Vo_Wo();
305 default: UD2();
306 }
307 // operand size (0x66)
308 0x1: decode OPCODE_OP_BOTTOM3 {
309 0x0: MOVUPD(Vo,Wo);
310 0x1: MOVUPD(Wo,Vo);
311 0x2: MOVLPD(Vq,Mq);
312 0x3: MOVLPD(Mq,Vq);
313 0x4: UNPCKLPD(Vo,Wq);
314 0x5: UNPCKHPD(Vo,Wo);
315 0x6: MOVHPD(Vq,Mq);
316 0x7: MOVHPD(Mq,Vq);
317 }
318 // repne (0xF2)
319 0x8: decode OPCODE_OP_BOTTOM3 {
320 0x0: MOVSD(Vq,Wq);
321 0x1: MOVSD(Wq,Vq);
322 0x2: MOVDDUP(Vo,Wq);
323 default: UD2();
324 }
325 default: UD2();
326 }
327 0x03: decode OPCODE_OP_BOTTOM3 {
328 //group16();
329 0x0: decode MODRM_REG {
330 0x0: WarnUnimpl::prefetch_nta();
331 0x1: PREFETCH_T0(Mb);
332 0x2: WarnUnimpl::prefetch_t1();
333 0x3: WarnUnimpl::prefetch_t2();
334 default: HINT_NOP();
335 }
336 0x1: HINT_NOP();
337 0x2: HINT_NOP();
338 0x3: HINT_NOP();
339 0x4: HINT_NOP();
340 0x5: HINT_NOP();
341 0x6: HINT_NOP();
342 0x7: HINT_NOP();
343 }
344 0x04: decode LEGACY_DECODEVAL {
345 // no prefix
346 0x0: decode OPCODE_OP_BOTTOM3 {
347 0x0: MOV(Rd,Cd);
348 0x1: MOV(Rd,Dd);
349 0x2: MOV(Cd,Rd);
350 0x3: MOV(Dd,Rd);
351 default: UD2();
352 }
353 default: UD2();
354 }
355 0x05: decode LEGACY_DECODEVAL {
356 // no prefix
357 0x0: decode OPCODE_OP_BOTTOM3 {
358 //These moves should really use size o (octword), but
359 //because they are split in two, they use q (quadword).
360 0x0: MOVAPS(Vq,Wq);
361 0x1: MOVAPS(Wq,Vq);
362 0x2: CVTPI2PS(Vq,Qq);
363 0x3: WarnUnimpl::movntps_Mo_Vo();
364 0x4: CVTTPS2PI(Pq,Wq);
365 0x5: CVTPS2PI(Pq,Wq);
366 0x6: UCOMISS(Vd,Wd);
367 0x7: COMISS(Vd,Wd);
368 }
369 // repe (0xF3)
370 0x4: decode OPCODE_OP_BOTTOM3 {
371 0x2: CVTSI2SS(Vd,Ed);
372 0x4: CVTTSS2SI(Gd,Wd);
373 0x5: CVTSS2SI(Gd,Wd);
374 default: UD2();
375 }
376 // operand size (0x66)
377 0x1: decode OPCODE_OP_BOTTOM3 {
378 0x0: MOVAPD(Vo,Wo);
379 0x1: MOVAPD(Wo,Vo);
380 0x2: CVTPI2PD(Vo,Qq);
381 0x3: WarnUnimpl::movntpd_Mo_Vo();
382 0x4: CVTTPD2PI(Pq,Wo);
383 0x5: CVTPD2PI(Pq,Wo);
384 0x6: UCOMISD(Vq,Wq);
385 0x7: COMISD(Vq,Wq);
386 }
387 // repne (0xF2)
388 0x8: decode OPCODE_OP_BOTTOM3 {
389 // The size of the V operand should be q, not dp
390 0x2: CVTSI2SD(Vdp,Edp);
391 // The size of the W operand should be q, not dp
392 0x4: CVTTSD2SI(Gdp,Wdp);
393 0x5: CVTSD2SI(Gd,Wq);
394 default: UD2();
395 }
396 default: UD2();
397 }
398 }
399 0x06: decode OPCODE_OP_BOTTOM3 {
400 0x0: Inst::WRMSR();
401 0x1: Inst::RDTSC();
402 0x2: Inst::RDMSR();
403 0x3: rdpmc();
404#if FULL_SYSTEM
405 0x4: sysenter();
406#else
407 0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall);
408#endif
409 0x5: sysexit();
410 0x6: Inst::UD2();
411 0x7: getsec();
412 }
413 0x07: decode OPCODE_OP_BOTTOM3 {
414 0x0: M5InternalError::error(
415 {{"Three byte opcode shouldn't be handled by "
416 "two_byte_opcodes.isa!"}});
417 0x2: M5InternalError::error(
418 {{"Three byte opcode shouldn't be handled by "
419 "two_byte_opcodes.isa!"}});
420 default: UD2();
421 }
422 format Inst {
423 0x08: decode OPCODE_OP_BOTTOM3 {
424 0x0: CMOVO(Gv,Ev);
425 0x1: CMOVNO(Gv,Ev);
426 0x2: CMOVB(Gv,Ev);
427 0x3: CMOVNB(Gv,Ev);
428 0x4: CMOVZ(Gv,Ev);
429 0x5: CMOVNZ(Gv,Ev);
430 0x6: CMOVBE(Gv,Ev);
431 0x7: CMOVNBE(Gv,Ev);
432 }
433 0x09: decode OPCODE_OP_BOTTOM3 {
434 0x0: CMOVS(Gv,Ev);
435 0x1: CMOVNS(Gv,Ev);
436 0x2: CMOVP(Gv,Ev);
437 0x3: CMOVNP(Gv,Ev);
438 0x4: CMOVL(Gv,Ev);
439 0x5: CMOVNL(Gv,Ev);
440 0x6: CMOVLE(Gv,Ev);
441 0x7: CMOVNLE(Gv,Ev);
442 }
443 0x0A: decode LEGACY_DECODEVAL {
444 // no prefix
445 0x0: decode OPCODE_OP_BOTTOM3 {
446 0x0: MOVMSKPS(Gd,VRo);
447 0x1: SQRTPS(Vo,Wo);
448 0x2: WarnUnimpl::rqsrtps_Vo_Wo();
449 0x3: WarnUnimpl::rcpps_Vo_Wo();
450 0x4: ANDPS(Vo,Wo);
451 0x5: ANDNPS(Vo,Wo);
452 0x6: ORPS(Vo,Wo);
453 0x7: XORPS(Vo,Wo);
454 }
455 // repe (0xF3)
456 0x4: decode OPCODE_OP_BOTTOM3 {
457 0x1: SQRTSS(Vd,Wd);
458 0x2: WarnUnimpl::rsqrtss_Vd_Wd();
459 0x3: WarnUnimpl::rcpss_Vd_Wd();
460 default: UD2();
461 }
462 // operand size (0x66)
463 0x1: decode OPCODE_OP_BOTTOM3 {
464 0x0: MOVMSKPD(Gd,VRo);
465 0x1: SQRTPD(Vo,Wo);
466 0x4: ANDPD(Vo,Wo);
467 0x5: ANDNPD(Vo,Wo);
468 0x6: ORPD(Vo,Wo);
469 0x7: XORPD(Vo,Wo);
470 default: UD2();
471 }
472 // repne (0xF2)
473 0x8: decode OPCODE_OP_BOTTOM3 {
474 0x1: SQRTSD(Vq,Wq);
475 default: UD2();
476 }
477 default: UD2();
478 }
479 0x0B: decode LEGACY_DECODEVAL {
480 // no prefix
481 0x0: decode OPCODE_OP_BOTTOM3 {
482 0x0: ADDPS(Vo,Wo);
483 0x1: MULPS(Vo,Wo);
484 0x2: CVTPS2PD(Vo,Wq);
485 0x3: CVTDQ2PS(Vo,Wo);
486 0x4: SUBPS(Vo,Wo);
487 0x5: MINPS(Vo,Wo);
488 0x6: DIVPS(Vo,Wo);
489 0x7: MAXPS(Vo,Wo);
490 }
491 // repe (0xF3)
492 0x4: decode OPCODE_OP_BOTTOM3 {
493 0x0: ADDSS(Vd,Wd);
494 0x1: MULSS(Vd,Wd);
495 0x2: CVTSS2SD(Vq,Wd);
496 0x3: CVTTPS2DQ(Vo,Wo);
497 0x4: SUBSS(Vd,Wd);
498 0x5: MINSS(Vd,Wd);
499 0x6: DIVSS(Vd,Wd);
500 0x7: MAXSS(Vd,Wd);
501 }
502 // operand size (0x66)
503 0x1: decode OPCODE_OP_BOTTOM3 {
504 0x0: ADDPD(Vo,Wo);
505 0x1: MULPD(Vo,Wo);
506 0x2: CVTPD2PS(Vo,Wo);
507 0x3: CVTPS2DQ(Vo,Wo);
508 0x4: SUBPD(Vo,Wo);
509 0x5: MINPD(Vo,Wo);
510 0x6: DIVPD(Vo,Wo);
511 0x7: MAXPD(Vo,Wo);
512 }
513 // repne (0xF2)
514 0x8: decode OPCODE_OP_BOTTOM3 {
515 0x0: ADDSD(Vq,Wq);
516 0x1: MULSD(Vq,Wq);
517 0x2: CVTSD2SS(Vd,Wq);
518 0x4: SUBSD(Vq,Wq);
519 0x5: MINSD(Vq,Wq);
520 0x6: DIVSD(Vq,Wq);
521 0x7: MAXSD(Vq,Wq);
522 default: UD2();
523 }
524 default: UD2();
525 }
526 0x0C: decode LEGACY_DECODEVAL {
527 // no prefix
528 0x0: decode OPCODE_OP_BOTTOM3 {
529 0x0: PUNPCKLBW(Pq,Qd);
530 0x1: PUNPCKLWD(Pq,Qd);
531 0x2: PUNPCKLDQ(Pq,Qd);
532 0x3: PACKSSWB(Pq,Qq);
533 0x4: PCMPGTB(Pq,Qq);
534 0x5: PCMPGTW(Pq,Qq);
535 0x6: PCMPGTD(Pq,Qq);
536 0x7: PACKUSWB(Pq,Qq);
537 }
538 // operand size (0x66)
539 0x1: decode OPCODE_OP_BOTTOM3 {
540 0x0: PUNPCKLBW(Vo,Wq);
541 0x1: PUNPCKLWD(Vo,Wq);
542 0x2: PUNPCKLDQ(Vo,Wq);
543 0x3: PACKSSWB(Vo,Wo);
544 0x4: PCMPGTB(Vo,Wo);
545 0x5: PCMPGTW(Vo,Wo);
546 0x6: PCMPGTD(Vo,Wo);
547 0x7: PACKUSWB(Vo,Wo);
548 }
549 default: UD2();
550 }
551 0x0D: decode LEGACY_DECODEVAL {
552 // no prefix
553 0x0: decode OPCODE_OP_BOTTOM3 {
554 0x0: PUNPCKHBW(Pq,Qq);
555 0x1: PUNPCKHWD(Pq,Qq);
556 0x2: PUNPCKHDQ(Pq,Qq);
557 0x3: PACKSSDW(Pq,Qq);
558 0x6: MOVD(Pq,Edp);
559 0x7: MOVQ(Pq,Qq);
560 default: UD2();
561 }
562 // repe (0xF3)
563 0x4: decode OPCODE_OP_BOTTOM3 {
564 0x7: MOVDQU(Vo,Wo);
565 default: UD2();
566 }
567 // operand size (0x66)
568 0x1: decode OPCODE_OP_BOTTOM3 {
569 0x0: PUNPCKHBW(Vo,Wo);
570 0x1: PUNPCKHWD(Vo,Wo);
571 0x2: PUNPCKHDQ(Vo,Wo);
572 0x3: PACKSSDW(Vo,Wo);
573 0x4: PUNPCKLQDQ(Vo,Wq);
574 0x5: PUNPCKHQDQ(Vo,Wq);
575 0x6: MOVD(Vo,Edp);
576 0x7: MOVDQA(Vo,Wo);
577 }
578 default: UD2();
579 }
580 0x0E: decode LEGACY_DECODEVAL {
581 // no prefix
582 0x0: decode OPCODE_OP_BOTTOM3 {
583 0x0: PSHUFW(Pq,Qq,Ib);
584 //0x1: group12_pshimw();
585 0x1: decode MODRM_REG {
586 0x2: PSRLW(PRq,Ib);
587 0x4: PSRAW(PRq,Ib);
588 0x6: PSLLW(PRq,Ib);
589 default: UD2();
590 }
591 //0x2: group13_pshimd();
592 0x2: decode MODRM_REG {
593 0x2: PSRLD(PRq,Ib);
594 0x4: PSRAD(PRq,Ib);
595 0x6: PSLLD(PRq,Ib);
596 default: UD2();
597 }
598 //0x3: group14_pshimq();
599 0x3: decode MODRM_REG {
600 0x2: PSRLQ(PRq,Ib);
601 0x6: PSLLQ(PRq,Ib);
602 default: Inst::UD2();
603 }
604 0x4: Inst::PCMPEQB(Pq,Qq);
605 0x5: Inst::PCMPEQW(Pq,Qq);
606 0x6: Inst::PCMPEQD(Pq,Qq);
607 0x7: WarnUnimpl::emms();
608 }
609 // repe (0xF3)
610 0x4: decode OPCODE_OP_BOTTOM3 {
611 0x0: PSHUFHW(Vo,Wo,Ib);
612 default: UD2();
613 }
614 // operand size (0x66)
615 0x1: decode OPCODE_OP_BOTTOM3 {
616 0x0: PSHUFD(Vo,Wo,Ib);
617 //0x1: group12_pshimw();
618 0x1: decode MODRM_REG {
619 0x2: PSRLW(VRo,Ib);
620 0x4: PSRAW(VRo,Ib);
621 0x6: PSLLW(VRo,Ib);
622 }
623 //0x2: group13_pshimd();
624 0x2: decode MODRM_REG {
625 0x2: PSRLD(VRo,Ib);
626 0x4: PSRAD(VRo,Ib);
627 0x6: PSLLD(VRo,Ib);
628 default: UD2();
629 }
630 //0x3: group14_pshimq();
631 0x3: decode MODRM_REG {
632 0x2: PSRLQ(VRo,Ib);
633 0x3: PSRLDQ(VRo,Ib);
634 0x6: PSLLQ(VRo,Ib);
635 0x7: PSLLDQ(VRo,Ib);
636 default: UD2();
637 }
638 0x4: PCMPEQB(Vo,Wo);
639 0x5: PCMPEQW(Vo,Wo);
640 0x6: PCMPEQD(Vo,Wo);
641 default: UD2();
642 }
643 // repne (0xF2)
644 0x8: decode OPCODE_OP_BOTTOM3 {
645 0x0: PSHUFLW(Vo,Wo,Ib);
646 default: UD2();
647 }
648 default: UD2();
649 }
650 0x0F: decode LEGACY_DECODEVAL {
651 // no prefix
652 0x0: decode OPCODE_OP_BOTTOM3 {
653 0x0: WarnUnimpl::vmread_Edp_Gdp();
654 0x1: WarnUnimpl::vmwrite_Gdp_Edp();
655 0x6: MOVD(Edp,Pdp);
656 0x7: MOVQ(Qq,Pq);
657 default: UD2();
658 }
659 // repe (0xF3)
660 0x4: decode OPCODE_OP_BOTTOM3 {
661 0x6: MOVQ(Vq,Wq);
662 0x7: MOVDQU(Wo,Vo);
663 default: UD2();
664 }
665 // operand size (0x66)
666 0x1: decode OPCODE_OP_BOTTOM3 {
667 0x4: HADDPD(Vo,Wo);
668 0x5: WarnUnimpl::hsubpd_Vo_Wo();
669 0x6: MOVD(Edp,Vd);
670 0x7: MOVDQA(Wo,Vo);
671 default: UD2();
672 }
673 // repne (0xF2)
674 0x8: decode OPCODE_OP_BOTTOM3 {
675 0x4: WarnUnimpl::haddps_Vo_Wo();
676 0x5: WarnUnimpl::hsubps_Vo_Wo();
677 default: UD2();
678 }
679 default: UD2();
680 }
681 0x10: decode OPCODE_OP_BOTTOM3 {
682 0x0: JO(Jz);
683 0x1: JNO(Jz);
684 0x2: JB(Jz);
685 0x3: JNB(Jz);
686 0x4: JZ(Jz);
687 0x5: JNZ(Jz);
688 0x6: JBE(Jz);
689 0x7: JNBE(Jz);
690 }
691 0x11: decode OPCODE_OP_BOTTOM3 {
692 0x0: JS(Jz);
693 0x1: JNS(Jz);
694 0x2: JP(Jz);
695 0x3: JNP(Jz);
696 0x4: JL(Jz);
697 0x5: JNL(Jz);
698 0x6: JLE(Jz);
699 0x7: JNLE(Jz);
700 }
701 0x12: decode OPCODE_OP_BOTTOM3 {
702 0x0: SETO(Eb);
703 0x1: SETNO(Eb);
704 0x2: SETB(Eb);
705 0x3: SETNB(Eb);
706 0x4: SETZ(Eb);
707 0x5: SETNZ(Eb);
708 0x6: SETBE(Eb);
709 0x7: SETNBE(Eb);
710 }
711 0x13: decode OPCODE_OP_BOTTOM3 {
712 0x0: SETS(Eb);
713 0x1: SETNS(Eb);
714 0x2: SETP(Eb);
715 0x3: SETNP(Eb);
716 0x4: SETL(Eb);
717 0x5: SETNL(Eb);
718 0x6: SETLE(Eb);
719 0x7: SETNLE(Eb);
720 }
721 }
722 0x14: decode OPCODE_OP_BOTTOM3 {
723 0x0: push_fs();
724 0x1: pop_fs();
725 0x2: CPUIDInst::CPUID({{
726 CpuidResult result;
727 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0),
728 bits(Rcx, 31, 0), result);
729 Rax = result.rax;
730 Rbx = result.rbx;
731 Rcx = result.rcx;
732 Rdx = result.rdx;
733 }});
734 0x3: Inst::BT(Ev,Gv);
735 0x4: Inst::SHLD(Ev,Gv,Ib);
736 0x5: Inst::SHLD(Ev,Gv);
737 default: Inst::UD2();
738 }
739 0x15: decode OPCODE_OP_BOTTOM3 {
740 0x0: push_gs();
741 0x1: pop_gs();
742 0x2: rsm_smm();
743 0x3: Inst::BTS(Ev,Gv);
744 0x4: Inst::SHRD(Ev,Gv,Ib);
745 0x5: Inst::SHRD(Ev,Gv);
746 //0x6: group15();
747 0x6: decode MODRM_MOD {
748 0x3: decode MODRM_REG {
749 0x5: BasicOperate::LFENCE(
750 {{/*Nothing*/}}, IsReadBarrier);
751 0x6: BasicOperate::MFENCE(
752 {{/*Nothing*/}}, IsMemBarrier);
753 0x7: BasicOperate::SFENCE(
754 {{/*Nothing*/}}, IsWriteBarrier);
755 default: Inst::UD2();
756 }
757 default: decode MODRM_REG {
758 0x0: fxsave();
759 0x1: fxrstor();
760 0x2: Inst::LDMXCSR(Md);
761 0x3: Inst::STMXCSR(Md);
762 0x4: xsave();
763 0x5: xrstor();
764 0x6: Inst::UD2();
765 0x7: clflush();
766 }
767 }
768 0x7: Inst::IMUL(Gv,Ev);
769 }
770 format Inst {
771 0x16: decode OPCODE_OP_BOTTOM3 {
772 0x0: CMPXCHG(Eb,Gb);
773 0x1: CMPXCHG(Ev,Gv);
774 0x2: WarnUnimpl::lss_Gz_Mp();
775 0x3: BTR(Ev,Gv);
776 0x4: WarnUnimpl::lfs_Gz_Mp();
777 0x5: WarnUnimpl::lgs_Gz_Mp();
778 //The size of the second operand in these instructions
779 //should really be "b" or "w", but it's set to v in order
780 //to have a consistent register size. This shouldn't
781 //affect behavior.
782 0x6: MOVZX_B(Gv,Ev);
783 0x7: MOVZX_W(Gv,Ev);
784 }
785 0x17: decode OPCODE_OP_BOTTOM3 {
786 0x0: decode LEGACY_REP {
787 0x0: WarnUnimpl::jmpe_Jz();
788 0x1: WarnUnimpl::popcnt_Gv_Ev();
789 }
790 //0x1: group10_UD2();
791 0x1: UD2();
792 //0x2: group8_Ev_Ib();
793 0x2: decode MODRM_REG {
794 0x4: BT(Ev,Ib);
795 0x5: BTS(Ev,Ib);
796 0x6: BTR(Ev,Ib);
797 0x7: BTC(Ev,Ib);
798 default: UD2();
799 }
800 0x3: BTC(Ev,Gv);
801 0x4: BSF(Gv,Ev);
802 0x5: BSR(Gv,Ev);
803 //The size of the second operand in these instructions
804 //should really be "b" or "w", but it's set to v in order
805 //to have a consistent register size. This shouldn't
806 //affect behavior.
807 0x6: MOVSX_B(Gv,Ev);
808 0x7: MOVSX_W(Gv,Ev);
809 }
810 0x18: decode OPCODE_OP_BOTTOM3 {
811 0x0: XADD(Eb,Gb);
812 0x1: XADD(Ev,Gv);
813 //0x7: group9();
814 0x7: decode MODRM_REG {
815 //Also CMPXCHG16B
816 0x1: CMPXCHG8B(Mdp);
817 0x6: decode LEGACY_OP {
818 0x1: WarnUnimpl::vmclear_Mq();
819 default: decode LEGACY_REP {
820 0x1: WarnUnimpl::vmxon_Mq();
821 0x0: WarnUnimpl::vmptrld_Mq();
822 }
823 }
824 0x7: WarnUnimpl::vmptrst_Mq();
825 default: UD2();
826 }
827 default: decode LEGACY_DECODEVAL {
828 // no prefix
829 0x0: decode OPCODE_OP_BOTTOM3 {
830 0x2: CMPPS(Vo,Wo,Ib);
831 0x3: MOVNTI(Mdp,Gdp);
832 0x4: PINSRW(Pq,Ew,Ib);
833 0x5: PEXTRW(Gd,PRq,Ib);
834 0x6: SHUFPS(Vps,Wps,Ib);
835 }
836 // repe (0xF3)
837 0x4: decode OPCODE_OP_BOTTOM3 {
838 0x2: CMPSS(Vd,Wd,Ib);
839 default: UD2();
840 }
841 // operand size (0x66)
842 0x1: decode OPCODE_OP_BOTTOM3 {
843 0x2: CMPPD(Vo,Wo,Ib);
844 0x4: PINSRW(Vdw,Ew,Ib);
845 0x5: PEXTRW(Gd,VRdq,Ib);
846 0x6: SHUFPD(Vpd,Wpd,Ib);
847 default: UD2();
848 }
849 // repne (0xF2)
850 0x8: decode OPCODE_OP_BOTTOM3 {
851 0x2: CMPSD(Vq,Wq,Ib);
852 default: UD2();
853 }
854 default: UD2();
855 }
856 }
857 0x19: decode OPSIZE {
858 4: BSWAP_D(Bd);
859 8: BSWAP_Q(Bq);
860 default: UD2();
861 }
862 0x1A: decode LEGACY_DECODEVAL {
863 // no prefix
864 0x0: decode OPCODE_OP_BOTTOM3 {
865 0x1: PSRLW(Pq,Qq);
866 0x2: PSRLD(Pq,Qq);
867 0x3: PSRLQ(Pq,Qq);
868 0x4: PADDQ(Pq,Qq);
869 0x5: PMULLW(Pq,Qq);
870 0x7: PMOVMSKB(Gd,PRq);
871 default: UD2();
872 }
873 // repe (0xF3)
874 0x4: decode OPCODE_OP_BOTTOM3 {
875 0x6: MOVQ2DQ(Vo,PRq);
876 default: UD2();
877 }
878 // operand size (0x66)
879 0x1: decode OPCODE_OP_BOTTOM3 {
880 0x0: WarnUnimpl::addsubpd_Vo_Wo();
881 0x1: PSRLW(Vo,Wo);
882 0x2: PSRLD(Vo,Wo);
883 0x3: PSRLQ(Vo,Wo);
884 0x4: PADDQ(Vo,Wo);
885 0x5: PMULLW(Vo,Wo);
886 0x6: MOVQ(Wq,Vq);
887 0x7: PMOVMSKB(Gd,VRo);
888 }
889 // repne (0xF2)
890 0x8: decode OPCODE_OP_BOTTOM3 {
891 0x0: WarnUnimpl::addsubps_Vo_Wo();
892 0x6: MOVDQ2Q(Pq,VRq);
893 default: UD2();
894 }
895 default: UD2();
896 }
897 0x1B: decode LEGACY_DECODEVAL {
898 // no prefix
899 0x0: decode OPCODE_OP_BOTTOM3 {
900 0x0: PSUBUSB(Pq,Qq);
901 0x1: PSUBUSW(Pq,Qq);
902 0x2: PMINUB(Pq,Qq);
903 0x3: PAND(Pq,Qq);
904 0x4: PADDUSB(Pq,Qq);
905 0x5: PADDUSW(Pq,Qq);
906 0x6: PMAXUB(Pq,Qq);
907 0x7: PANDN(Pq,Qq);
908 }
909 // operand size (0x66)
910 0x1: decode OPCODE_OP_BOTTOM3 {
911 0x0: PSUBUSB(Vo,Wo);
912 0x1: PSUBUSW(Vo,Wo);
913 0x2: PMINUB(Vo,Wo);
914 0x3: PAND(Vo,Wo);
915 0x4: PADDUSB(Vo,Wo);
916 0x5: PADDUSW(Vo,Wo);
917 0x6: PMAXUB(Vo,Wo);
918 0x7: PANDN(Vo,Wo);
919 }
920 default: UD2();
921 }
922 0x1C: decode LEGACY_DECODEVAL {
923 // no prefix
924 0x0: decode OPCODE_OP_BOTTOM3 {
925 0x0: PAVGB(Pq,Qq);
926 0x1: PSRAW(Pq,Qq);
927 0x2: PSRAD(Pq,Qq);
928 0x3: PAVGW(Pq,Qq);
929 0x4: PMULHUW(Pq,Qq);
930 0x5: PMULHW(Pq,Qq);
931 0x7: WarnUnimpl::movntq_Mq_Pq();
932 default: UD2();
933 }
934 // repe (0xF3)
935 0x4: decode OPCODE_OP_BOTTOM3 {
936 0x6: CVTDQ2PD(Vo,Wq);
937 default: UD2();
938 }
939 // operand size (0x66)
940 0x1: decode OPCODE_OP_BOTTOM3 {
941 0x0: PAVGB(Vo,Wo);
942 0x1: PSRAW(Vo,Wo);
943 0x2: PSRAD(Vo,Wo);
944 0x3: PAVGW(Vo,Wo);
945 0x4: PMULHUW(Vo,Wo);
946 0x5: PMULHW(Vo,Wo);
947 0x6: CVTTPD2DQ(Vo,Wo);
948 0x7: WarnUnimpl::movntdq_Mo_Vo();
949 }
950 // repne (0xF2)
951 0x8: decode OPCODE_OP_BOTTOM3 {
952 0x6: CVTPD2DQ(Vo,Wo);
953 default: UD2();
954 }
955 default: UD2();
956 }
957 0x1D: decode LEGACY_DECODEVAL {
958 // no prefix
959 0x0: decode OPCODE_OP_BOTTOM3 {
960 0x0: PSUBSB(Pq,Qq);
961 0x1: PSUBSW(Pq,Qq);
962 0x2: PMINSW(Pq,Qq);
963 0x3: POR(Pq,Qq);
964 0x4: PADDSB(Pq,Qq);
965 0x5: PADDSW(Pq,Qq);
966 0x6: PMAXSW(Pq,Qq);
967 0x7: PXOR(Pq,Qq);
968 }
969 // operand size (0x66)
970 0x1: decode OPCODE_OP_BOTTOM3 {
971 0x0: PSUBSB(Vo,Wo);
972 0x1: PSUBSW(Vo,Wo);
973 0x2: PMINSW(Vo,Wo);
974 0x3: POR(Vo,Wo);
975 0x4: PADDSB(Vo,Wo);
976 0x5: PADDSW(Vo,Wo);
977 0x6: PMAXSW(Vo,Wo);
978 0x7: PXOR(Vo,Wo);
979 }
980 default: UD2();
981 }
982 0x1E: decode LEGACY_DECODEVAL {
983 // no prefix
984 0x0: decode OPCODE_OP_BOTTOM3 {
985 0x1: PSLLW(Pq,Qq);
986 0x2: PSLLD(Pq,Qq);
987 0x3: PSLLQ(Pq,Qq);
988 0x4: PMULUDQ(Pq,Qq);
989 0x5: PMADDWD(Pq,Qq);
990 0x6: PSADBW(Pq,Qq);
991 0x7: MASKMOVQ(Pq,PRq);
992 default: UD2();
993 }
994 // operand size (0x66)
995 0x1: decode OPCODE_OP_BOTTOM3 {
996 0x1: PSLLW(Vo,Wo);
997 0x2: PSLLD(Vo,Wo);
998 0x3: PSLLQ(Vo,Wo);
999 0x4: PMULUDQ(Vo,Wo);
1000 0x5: PMADDWD(Vo,Wo);
1001 0x6: PSADBW(Vo,Wo);
1002 0x7: MASKMOVDQU(Vo,VRo);
1003 default: UD2();
1004 }
1005 // repne (0xF2)
1006 0x8: decode OPCODE_OP_BOTTOM3 {
1007 0x0: WarnUnimpl::lddqu_Vo_Mo();
1008 default: UD2();
1009 }
1010 default: UD2();
1011 }
1012 0x1F: decode LEGACY_DECODEVAL {
1013 // no prefix
1014 0x0: decode OPCODE_OP_BOTTOM3 {
1015 0x0: PSUBB(Pq,Qq);
1016 0x1: PSUBW(Pq,Qq);
1017 0x2: PSUBD(Pq,Qq);
1018 0x3: PSUBQ(Pq,Qq);
1019 0x4: PADDB(Pq,Qq);
1020 0x5: PADDW(Pq,Qq);
1021 0x6: PADDD(Pq,Qq);
1022 0x7: UD2();
1023 }
1024 // operand size (0x66)
1025 0x1: decode OPCODE_OP_BOTTOM3 {
1026 0x0: PSUBB(Vo,Wo);
1027 0x1: PSUBW(Vo,Wo);
1028 0x2: PSUBD(Vo,Wo);
1029 0x3: PSUBQ(Vo,Wo);
1030 0x4: PADDB(Vo,Wo);
1031 0x5: PADDW(Vo,Wo);
1032 0x6: PADDD(Vo,Wo);
1033 0x7: UD2();
1034 }
1035 default: UD2();
1036 }
1037 }
1038 default: FailUnimpl::twoByteOps();
1039 }
1040 }
1041 default: M5InternalError::error(
1042 {{"Unexpected first opcode byte in two byte opcode!"}});
1043}
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