1 // Copyright (c) 2007 The Hewlett-Packard Development Company
2 // All rights reserved.
4 // Redistribution and use of this software in source and binary forms,
5 // with or without modification, are permitted provided that the
6 // following conditions are met:
8 // The software must be used only for Non-Commercial Use which means any
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11 // examples of non-commercial use are academic research, personal study,
12 // teaching, education and corporate research & development.
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33 // sublicense is granted herewith. Derivatives of the software and
34 // output created using the software may be prepared, but only for
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38 // and (ii) such Derivatives of the software include the above copyright
39 // notice to acknowledge the contribution from this software where
40 // applicable, this list of conditions and the disclaimer below.
42 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 // Authors: Gabe Black
56 ////////////////////////////////////////////////////////////////////
58 // Decode the two byte opcodes
60 0x2: decode OPCODE_PREFIXA {
61 0x0F: decode OPCODE_OP_TOP5 {
63 0x00: decode OPCODE_OP_BOTTOM3 {
68 //sandpile.org doesn't seem to know what this is... ?
69 0x04: loadall_or_reset_or_hang();
73 0x05: SyscallInst::syscall('xc->syscall(rax)', IsSyscall);
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();
80 0x01: decode OPCODE_OP_BOTTOM3 {
90 0x02: decode LEGACY_DECODEVAL {
92 0x0: decode OPCODE_OP_BOTTOM3 {
95 0x2: decode MODRM_MOD {
96 0x3: movhlps_Vq_VRq();
97 default: movlps_Vq_Mq();
102 0x6: decode MODRM_MOD {
103 0x3: movlhps_Vq_VRq();
104 default: movhps_Vq_Mq();
109 0x4: decode OPCODE_OP_BOTTOM3 {
112 0x2: movsldup_Vo_Wo();
113 0x6: movshdup_Vo_Wo();
114 default: Inst::UD2();
116 // operand size (0x66)
117 0x1: decode OPCODE_OP_BOTTOM3 {
120 0x2: Inst::MOVLPD(Vq,Mq);
121 0x3: Inst::MOVLPD(Mq,Vq);
122 0x4: unpcklpd_Vo_Wq();
123 0x5: unpckhpd_Vo_Wo();
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();
134 default: Inst::UD2();
136 0x03: decode OPCODE_OP_BOTTOM3 {
146 0x04: decode LEGACY_DECODEVAL {
148 0x0: decode OPCODE_OP_BOTTOM3 {
155 default: Inst::UD2();
157 // lock prefix (0xF0)
158 0x2: decode OPCODE_OP_BOTTOM3 {
162 default: Inst::UD2();
164 0x05: decode LEGACY_DECODEVAL {
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();
175 0x3: movntps_Mo_Vo();
176 0x4: cvttps2pi_Pq_Wq();
177 0x5: cvtpS2pi_Pq_Wq();
178 0x6: ucomiss_Vd_Wd();
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();
188 // operand size (0x66)
189 0x1: decode OPCODE_OP_BOTTOM3 {
192 0x2: decode MODRM_MOD {
193 0x3: cvtpi2pd_Vo_Pq();
194 default: cvtpi2pd_Vo_Mq();
196 0x3: movntpd_Mo_Vo();
197 0x4: cvttpd2pi_Pq_Wo();
198 0x5: cvtpd2pi_Pq_Wo();
199 0x6: Inst::UCOMISD(Vq,Wq);
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();
211 default: Inst::UD2();
213 0x06: decode OPCODE_OP_BOTTOM3 {
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();
234 0x08: decode OPCODE_OP_BOTTOM3 {
244 0x09: decode OPCODE_OP_BOTTOM3 {
255 0x0A: decode LEGACY_DECODEVAL {
257 0x0: decode OPCODE_OP_BOTTOM3 {
258 0x0: movmskps_Gd_VRo();
260 0x2: rqsrtps_Vo_Wo();
268 0x4: decode OPCODE_OP_BOTTOM3 {
270 0x2: rsqrtss_Vd_Wd();
272 default: Inst::UD2();
274 // operand size (0x66)
275 0x1: decode OPCODE_OP_BOTTOM3 {
276 0x0: movmskpd_Gd_VRo();
281 //This really should be type o, but it works on q sized
283 0x7: Inst::XORPD(Vq,Wq);
284 default: Inst::UD2();
288 0x8: decode OPCODE_OP_BOTTOM3 {
295 0x0B: decode LEGACY_DECODEVAL {
297 0x0: decode OPCODE_OP_BOTTOM3 {
300 0x2: cvtps2pd_Vo_Wq();
301 0x3: cvtdq2ps_Vo_Wo();
308 0x4: decode OPCODE_OP_BOTTOM3 {
311 0x2: cvtss2sd_Vq_Wd();
312 0x3: cvttps2dq_Vo_Wo();
318 // operand size (0x66)
319 0x1: decode OPCODE_OP_BOTTOM3 {
322 0x2: cvtpd2ps_Vo_Wo();
323 0x3: cvtps2dq_Vo_Wo();
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);
336 0x6: Inst::DIVSD(Vq,Wq);
338 default: Inst::UD2();
340 default: Inst::UD2();
342 0x0C: decode LEGACY_DECODEVAL {
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();
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();
365 default: Inst::UD2();
367 0x0D: decode LEGACY_DECODEVAL {
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();
376 default: Inst::UD2();
379 0x4: decode OPCODE_OP_BOTTOM3 {
381 default: Inst::UD2();
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();
394 default: Inst::UD2();
396 0x0E: decode LEGACY_DECODEVAL {
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();
409 0x4: decode OPCODE_OP_BOTTOM3 {
410 0x0: pshufhw_Vo_Wo_Ib();
411 default: Inst::UD2();
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();
425 0x8: decode OPCODE_OP_BOTTOM3 {
426 0x0: pshuflw_Vo_Wo_Ib();
427 default: Inst::UD2();
429 default: Inst::UD2();
431 0x0F: decode LEGACY_DECODEVAL {
433 0x0: decode OPCODE_OP_BOTTOM3 {
434 0x0: vmread_Ed_or_Eq_Gd_or_Gq();
435 0x1: vmwrite_Gd_or_Gq_Ed_or_Eq();
438 default: Inst::UD2();
441 0x4: decode OPCODE_OP_BOTTOM3 {
442 0x6: movq_Vo_Mq_or_Vq_Vq();
444 default: Inst::UD2();
446 // operand size (0x66)
447 0x1: decode OPCODE_OP_BOTTOM3 {
452 default: Inst::UD2();
455 0x8: decode OPCODE_OP_BOTTOM3 {
458 default: Inst::UD2();
460 default: Inst::UD2();
463 0x10: decode OPCODE_OP_BOTTOM3 {
473 0x11: decode OPCODE_OP_BOTTOM3 {
483 0x12: decode OPCODE_OP_BOTTOM3 {
493 0x13: decode OPCODE_OP_BOTTOM3 {
504 0x14: decode OPCODE_OP_BOTTOM3 {
507 0x2: Inst::CPUID(rAd);
509 0x4: shld_Ev_Gv_Ib();
510 0x5: shld_Ev_Gv_rCl();
511 0x6: xbts_and_cmpxchg();
512 0x7: ibts_and_cmpxchg();
514 0x15: decode OPCODE_OP_BOTTOM3 {
519 0x4: shrd_Ev_Gv_Ib();
520 0x5: shrd_Ev_Gv_rCl();
522 0x7: Inst::IMUL(Gv,Ev);
524 0x16: decode OPCODE_OP_BOTTOM3 {
525 0x0: Inst::CMPXCHG(Eb,Gb);
526 0x1: Inst::CMPXCHG(Ev,Gv);
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);
537 0x17: decode OPCODE_OP_BOTTOM3 {
538 0x0: jmpe_Jz(); // IA-64?
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);
550 0x18: decode OPCODE_OP_BOTTOM3 {
554 default: decode LEGACY_DECODEVAL {
556 0x0: decode OPCODE_OP_BOTTOM3 {
557 0x2: cmpccps_Vo_Wo_Ib();
558 0x3: cvtdq2ps_Vo_Wo();
564 0x4: decode OPCODE_OP_BOTTOM3 {
565 0x2: cmpccss_Vd_Wd_Ib();
566 default: Inst::UD2();
568 // operand size (0x66)
569 0x1: decode OPCODE_OP_BOTTOM3 {
570 0x2: cmpccpd_Vo_Wo_Ib();
574 default: Inst::UD2();
577 0x8: decode OPCODE_OP_BOTTOM3 {
578 0x2: cmpccsd_Vq_Wq_Ib();
579 default: Inst::UD2();
581 default: Inst::UD2();
585 0x1A: decode LEGACY_DECODEVAL {
587 0x0: decode OPCODE_OP_BOTTOM3 {
593 0x7: pmovmskb_Gd_PRq();
594 default: Inst::UD2();
597 0x4: decode OPCODE_OP_BOTTOM3 {
598 0x6: movq2dq_Vo_PRq();
599 default: Inst::UD2();
601 // operand size (0x66)
602 0x1: decode OPCODE_OP_BOTTOM3 {
603 0x0: addsubpd_Vo_Wo();
609 0x6: decode MODRM_MOD {
611 default: movq_Mq_Vq();
613 0x7: pmovmskb_Gd_VRo();
616 0x8: decode OPCODE_OP_BOTTOM3 {
617 0x0: addsubps_Vo_Wo();
618 0x6: movdq2q_Pq_VRq();
619 default: Inst::UD2();
621 default: Inst::UD2();
623 0x1B: decode LEGACY_DECODEVAL {
625 0x0: decode OPCODE_OP_BOTTOM3 {
626 0x0: psubusb_Pq_Qq();
627 0x1: psubusw_Pq_Qq();
630 0x4: paddusb_Pq_Qq();
631 0x5: paddusw_Pq_Qq();
635 // operand size (0x66)
636 0x1: decode OPCODE_OP_BOTTOM3 {
637 0x0: psubusb_Vo_Wo();
638 0x1: psubusw_Vo_Wo();
641 0x4: paddusb_Vo_Wo();
642 0x5: paddusw_Vo_Wo();
646 default: Inst::UD2();
648 0x1C: decode LEGACY_DECODEVAL {
650 0x0: decode OPCODE_OP_BOTTOM3 {
655 0x4: pmulhuw_Pq_Qq();
658 default: Inst::UD2();
661 0x4: decode OPCODE_OP_BOTTOM3 {
662 0x6: cvtdq2pd_Vo_Wq();
663 default: Inst::UD2();
665 // operand size (0x66)
666 0x1: decode OPCODE_OP_BOTTOM3 {
671 0x4: pmulhuw_Vo_Wo();
673 0x6: cvttpd2dq_Vo_Wo();
674 0x7: movntdq_Mo_Vo();
677 0x8: decode OPCODE_OP_BOTTOM3 {
678 0x6: cvtpd2dq_Vo_Wo();
679 default: Inst::UD2();
681 default: Inst::UD2();
683 0x1D: decode LEGACY_DECODEVAL {
685 0x0: decode OPCODE_OP_BOTTOM3 {
695 // operand size (0x66)
696 0x1: decode OPCODE_OP_BOTTOM3 {
706 default: Inst::UD2();
708 0x1E: decode OPCODE_OP_BOTTOM3 {
710 0x0: decode OPCODE_OP_BOTTOM3 {
714 0x4: pmuludq_Pq_Qq();
715 0x5: pmaddwd_Pq_Qq();
717 0x7: maskmovq_Pq_PRq();
718 default: Inst::UD2();
720 // operand size (0x66)
721 0x1: decode OPCODE_OP_BOTTOM3 {
725 0x4: pmuludq_Vo_Wo();
726 0x5: pmaddwd_Vo_Wo();
728 0x7: maskmovdqu_Vo_VRo();
729 default: Inst::UD2();
732 0x8: decode OPCODE_OP_BOTTOM3 {
734 default: Inst::UD2();
736 default: Inst::UD2();
738 0x1F: decode LEGACY_DECODEVAL {
740 0x0: decode OPCODE_OP_BOTTOM3 {
750 // operand size (0x66)
751 0x1: decode OPCODE_OP_BOTTOM3 {
761 default: Inst::UD2();
763 default: FailUnimpl::twoByteOps();
766 default: M5InternalError::error(
767 {{"Unexpected first opcode byte in two byte opcode!"}});