two_byte_opcodes.isa revision 7914:eee5bb0fb8ea
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Copyright (c) 2008 The Regents of The University of Michigan 14// All rights reserved. 15// 16// Redistribution and use in source and binary forms, with or without 17// modification, are permitted provided that the following conditions are 18// met: redistributions of source code must retain the above copyright 19// notice, this list of conditions and the following disclaimer; 20// redistributions in binary form must reproduce the above copyright 21// notice, this list of conditions and the following disclaimer in the 22// documentation and/or other materials provided with the distribution; 23// neither the name of the copyright holders nor the names of its 24// contributors may be used to endorse or promote products derived from 25// this software without specific prior written permission. 26// 27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38// 39// Authors: Gabe Black 40 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 RIP); 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 0x5a: m5_work_begin({{ 220 PseudoInst::workbegin(xc->tcBase(), Rdi, Rsi); 221 }}, IsNonSpeculative); 222 0x5b: m5_work_end({{ 223 PseudoInst::workend(xc->tcBase(), Rdi, Rsi); 224 }}, IsNonSpeculative); 225 default: Inst::UD2(); 226 } 227 } 228#if FULL_SYSTEM 229 0x05: decode MODE_MODE { 230 0x0: decode MODE_SUBMODE { 231 0x0: Inst::SYSCALL_64(); 232 0x1: Inst::SYSCALL_COMPAT(); 233 } 234 0x1: Inst::SYSCALL_LEGACY(); 235 } 236#else 237 0x05: SyscallInst::syscall('xc->syscall(Rax)', 238 IsSyscall, IsNonSpeculative, IsSerializeAfter); 239#endif 240 0x06: Inst::CLTS(); 241 0x07: decode MODE_SUBMODE { 242 0x0: decode OPSIZE { 243 // Return to 64 bit mode. 244 0x8: Inst::SYSRET_TO_64(); 245 // Return to compatibility mode. 246 default: Inst::SYSRET_TO_COMPAT(); 247 } 248 default: Inst::SYSRET_NON_64(); 249 } 250 } 251 0x01: decode OPCODE_OP_BOTTOM3 { 252 0x0: invd(); 253 0x1: wbinvd(); 254 0x2: Inst::UD2(); 255 0x3: Inst::UD2(); 256 0x4: Inst::UD2(); 257 0x5: Inst::PREFETCH(Mb); 258 0x6: FailUnimpl::femms(); 259 0x7: decode IMMEDIATE { 260 0x0C: pi2fw_Pq_Qq(); 261 0x0D: pi2fd_Pq_Qq(); 262 0x1C: pf2iw_Pq_Qq(); 263 0x1D: pf2id_Pq_Qq(); 264 0x8A: pfnacc_Pq_Qq(); 265 0x8E: pfpnacc_Pq_Qq(); 266 0x90: pfcmpge_Pq_Qq(); 267 0x94: pfmin_Pq_Qq(); 268 0x96: pfrcp_Pq_Qq(); 269 0x97: pfrsqrt_Pq_Qq(); 270 0x9A: Inst::PFSUB(Pq,Qq); 271 0x9E: pfadd_Pq_Qq(); 272 0xA0: pfcmpgt_Pq_Qq(); 273 0xA4: pfmax_Pq_Qq(); 274 0xA6: pfrcpit1_Pq_Qq(); 275 0xA7: pfrsqit1_Pq_Qq(); 276 0xAA: Inst::PFSUBR(Pq,Qq); 277 0xAE: pfacc_Pq_Qq(); 278 0xB0: pfcmpeq_Pq_Qq(); 279 0xB4: Inst::PFMUL(Pq,Qq); 280 0xB6: pfrcpit2_Pq_Qq(); 281 0xB7: Inst::PMULHRW(Pq,Qq); 282 0xBB: pswapd_Pq_Qq(); 283 0xBF: pavgusb_Pq_Qq(); 284 default: Inst::UD2(); 285 } 286 } 287 format Inst{ 288 0x02: decode LEGACY_DECODEVAL { 289 // no prefix 290 0x0: decode OPCODE_OP_BOTTOM3 { 291 0x0: MOVUPS(Vo,Wo); 292 0x1: MOVUPS(Wo,Vo); 293 0x2: decode MODRM_MOD { 294 0x3: MOVHLPS(Vps,VRq); 295 default: MOVLPS(Vps,Mq); 296 } 297 0x3: MOVLPS(Mq,Vps); 298 0x4: UNPCKLPS(Vps,Wq); 299 0x5: UNPCKHPS(Vps,Wq); 300 0x6: decode MODRM_MOD { 301 0x3: MOVLHPS(Vps,VRq); 302 default: MOVHPS(Vps,Mq); 303 } 304 0x7: MOVHPS(Mq,Vq); 305 } 306 // repe (0xF3) 307 0x4: decode OPCODE_OP_BOTTOM3 { 308 0x0: MOVSS(Vd,Wd); 309 0x1: MOVSS(Wd,Vd); 310 0x2: WarnUnimpl::movsldup_Vo_Wo(); 311 0x6: WarnUnimpl::movshdup_Vo_Wo(); 312 default: UD2(); 313 } 314 // operand size (0x66) 315 0x1: decode OPCODE_OP_BOTTOM3 { 316 0x0: MOVUPD(Vo,Wo); 317 0x1: MOVUPD(Wo,Vo); 318 0x2: MOVLPD(Vq,Mq); 319 0x3: MOVLPD(Mq,Vq); 320 0x4: UNPCKLPD(Vo,Wq); 321 0x5: UNPCKHPD(Vo,Wo); 322 0x6: MOVHPD(Vq,Mq); 323 0x7: MOVHPD(Mq,Vq); 324 } 325 // repne (0xF2) 326 0x8: decode OPCODE_OP_BOTTOM3 { 327 0x0: MOVSD(Vq,Wq); 328 0x1: MOVSD(Wq,Vq); 329 0x2: MOVDDUP(Vo,Wq); 330 default: UD2(); 331 } 332 default: UD2(); 333 } 334 0x03: decode OPCODE_OP_BOTTOM3 { 335 //group16(); 336 0x0: decode MODRM_REG { 337 0x0: WarnUnimpl::prefetch_nta(); 338 0x1: PREFETCH_T0(Mb); 339 0x2: WarnUnimpl::prefetch_t1(); 340 0x3: WarnUnimpl::prefetch_t2(); 341 default: HINT_NOP(); 342 } 343 0x1: HINT_NOP(); 344 0x2: HINT_NOP(); 345 0x3: HINT_NOP(); 346 0x4: HINT_NOP(); 347 0x5: HINT_NOP(); 348 0x6: HINT_NOP(); 349 0x7: HINT_NOP(); 350 } 351 0x04: decode LEGACY_DECODEVAL { 352 // no prefix 353 0x0: decode OPCODE_OP_BOTTOM3 { 354 0x0: MOV(Rd,Cd); 355 0x1: MOV(Rd,Dd); 356 0x2: MOV(Cd,Rd); 357 0x3: MOV(Dd,Rd); 358 default: UD2(); 359 } 360 default: UD2(); 361 } 362 0x05: decode LEGACY_DECODEVAL { 363 // no prefix 364 0x0: decode OPCODE_OP_BOTTOM3 { 365 //These moves should really use size o (octword), but 366 //because they are split in two, they use q (quadword). 367 0x0: MOVAPS(Vq,Wq); 368 0x1: MOVAPS(Wq,Vq); 369 0x2: CVTPI2PS(Vq,Qq); 370 0x3: WarnUnimpl::movntps_Mo_Vo(); 371 0x4: CVTTPS2PI(Pq,Wq); 372 0x5: CVTPS2PI(Pq,Wq); 373 0x6: UCOMISS(Vd,Wd); 374 0x7: COMISS(Vd,Wd); 375 } 376 // repe (0xF3) 377 0x4: decode OPCODE_OP_BOTTOM3 { 378 0x2: CVTSI2SS(Vd,Ed); 379 0x4: CVTTSS2SI(Gd,Wd); 380 0x5: CVTSS2SI(Gd,Wd); 381 default: UD2(); 382 } 383 // operand size (0x66) 384 0x1: decode OPCODE_OP_BOTTOM3 { 385 0x0: MOVAPD(Vo,Wo); 386 0x1: MOVAPD(Wo,Vo); 387 0x2: CVTPI2PD(Vo,Qq); 388 0x3: WarnUnimpl::movntpd_Mo_Vo(); 389 0x4: CVTTPD2PI(Pq,Wo); 390 0x5: CVTPD2PI(Pq,Wo); 391 0x6: UCOMISD(Vq,Wq); 392 0x7: COMISD(Vq,Wq); 393 } 394 // repne (0xF2) 395 0x8: decode OPCODE_OP_BOTTOM3 { 396 // The size of the V operand should be q, not dp 397 0x2: CVTSI2SD(Vdp,Edp); 398 // The size of the W operand should be q, not dp 399 0x4: CVTTSD2SI(Gdp,Wdp); 400 0x5: CVTSD2SI(Gd,Wq); 401 default: UD2(); 402 } 403 default: UD2(); 404 } 405 } 406 0x06: decode OPCODE_OP_BOTTOM3 { 407 0x0: Inst::WRMSR(); 408 0x1: Inst::RDTSC(); 409 0x2: Inst::RDMSR(); 410 0x3: rdpmc(); 411#if FULL_SYSTEM 412 0x4: sysenter(); 413#else 414 0x4: SyscallInst::sysenter('xc->syscall(Rax)', 415 IsSyscall, IsNonSpeculative, IsSerializeAfter); 416#endif 417 0x5: sysexit(); 418 0x6: Inst::UD2(); 419 0x7: getsec(); 420 } 421 0x07: decode OPCODE_OP_BOTTOM3 { 422 0x0: M5InternalError::error( 423 {{"Three byte opcode shouldn't be handled by " 424 "two_byte_opcodes.isa!"}}); 425 0x2: M5InternalError::error( 426 {{"Three byte opcode shouldn't be handled by " 427 "two_byte_opcodes.isa!"}}); 428 default: UD2(); 429 } 430 format Inst { 431 0x08: decode OPCODE_OP_BOTTOM3 { 432 0x0: CMOVO(Gv,Ev); 433 0x1: CMOVNO(Gv,Ev); 434 0x2: CMOVB(Gv,Ev); 435 0x3: CMOVNB(Gv,Ev); 436 0x4: CMOVZ(Gv,Ev); 437 0x5: CMOVNZ(Gv,Ev); 438 0x6: CMOVBE(Gv,Ev); 439 0x7: CMOVNBE(Gv,Ev); 440 } 441 0x09: decode OPCODE_OP_BOTTOM3 { 442 0x0: CMOVS(Gv,Ev); 443 0x1: CMOVNS(Gv,Ev); 444 0x2: CMOVP(Gv,Ev); 445 0x3: CMOVNP(Gv,Ev); 446 0x4: CMOVL(Gv,Ev); 447 0x5: CMOVNL(Gv,Ev); 448 0x6: CMOVLE(Gv,Ev); 449 0x7: CMOVNLE(Gv,Ev); 450 } 451 0x0A: decode LEGACY_DECODEVAL { 452 // no prefix 453 0x0: decode OPCODE_OP_BOTTOM3 { 454 0x0: MOVMSKPS(Gd,VRo); 455 0x1: SQRTPS(Vo,Wo); 456 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 457 0x3: WarnUnimpl::rcpps_Vo_Wo(); 458 0x4: ANDPS(Vo,Wo); 459 0x5: ANDNPS(Vo,Wo); 460 0x6: ORPS(Vo,Wo); 461 0x7: XORPS(Vo,Wo); 462 } 463 // repe (0xF3) 464 0x4: decode OPCODE_OP_BOTTOM3 { 465 0x1: SQRTSS(Vd,Wd); 466 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 467 0x3: WarnUnimpl::rcpss_Vd_Wd(); 468 default: UD2(); 469 } 470 // operand size (0x66) 471 0x1: decode OPCODE_OP_BOTTOM3 { 472 0x0: MOVMSKPD(Gd,VRo); 473 0x1: SQRTPD(Vo,Wo); 474 0x4: ANDPD(Vo,Wo); 475 0x5: ANDNPD(Vo,Wo); 476 0x6: ORPD(Vo,Wo); 477 0x7: XORPD(Vo,Wo); 478 default: UD2(); 479 } 480 // repne (0xF2) 481 0x8: decode OPCODE_OP_BOTTOM3 { 482 0x1: SQRTSD(Vq,Wq); 483 default: UD2(); 484 } 485 default: UD2(); 486 } 487 0x0B: decode LEGACY_DECODEVAL { 488 // no prefix 489 0x0: decode OPCODE_OP_BOTTOM3 { 490 0x0: ADDPS(Vo,Wo); 491 0x1: MULPS(Vo,Wo); 492 0x2: CVTPS2PD(Vo,Wq); 493 0x3: CVTDQ2PS(Vo,Wo); 494 0x4: SUBPS(Vo,Wo); 495 0x5: MINPS(Vo,Wo); 496 0x6: DIVPS(Vo,Wo); 497 0x7: MAXPS(Vo,Wo); 498 } 499 // repe (0xF3) 500 0x4: decode OPCODE_OP_BOTTOM3 { 501 0x0: ADDSS(Vd,Wd); 502 0x1: MULSS(Vd,Wd); 503 0x2: CVTSS2SD(Vq,Wd); 504 0x3: CVTTPS2DQ(Vo,Wo); 505 0x4: SUBSS(Vd,Wd); 506 0x5: MINSS(Vd,Wd); 507 0x6: DIVSS(Vd,Wd); 508 0x7: MAXSS(Vd,Wd); 509 } 510 // operand size (0x66) 511 0x1: decode OPCODE_OP_BOTTOM3 { 512 0x0: ADDPD(Vo,Wo); 513 0x1: MULPD(Vo,Wo); 514 0x2: CVTPD2PS(Vo,Wo); 515 0x3: CVTPS2DQ(Vo,Wo); 516 0x4: SUBPD(Vo,Wo); 517 0x5: MINPD(Vo,Wo); 518 0x6: DIVPD(Vo,Wo); 519 0x7: MAXPD(Vo,Wo); 520 } 521 // repne (0xF2) 522 0x8: decode OPCODE_OP_BOTTOM3 { 523 0x0: ADDSD(Vq,Wq); 524 0x1: MULSD(Vq,Wq); 525 0x2: CVTSD2SS(Vd,Wq); 526 0x4: SUBSD(Vq,Wq); 527 0x5: MINSD(Vq,Wq); 528 0x6: DIVSD(Vq,Wq); 529 0x7: MAXSD(Vq,Wq); 530 default: UD2(); 531 } 532 default: UD2(); 533 } 534 0x0C: decode LEGACY_DECODEVAL { 535 // no prefix 536 0x0: decode OPCODE_OP_BOTTOM3 { 537 0x0: PUNPCKLBW(Pq,Qd); 538 0x1: PUNPCKLWD(Pq,Qd); 539 0x2: PUNPCKLDQ(Pq,Qd); 540 0x3: PACKSSWB(Pq,Qq); 541 0x4: PCMPGTB(Pq,Qq); 542 0x5: PCMPGTW(Pq,Qq); 543 0x6: PCMPGTD(Pq,Qq); 544 0x7: PACKUSWB(Pq,Qq); 545 } 546 // operand size (0x66) 547 0x1: decode OPCODE_OP_BOTTOM3 { 548 0x0: PUNPCKLBW(Vo,Wq); 549 0x1: PUNPCKLWD(Vo,Wq); 550 0x2: PUNPCKLDQ(Vo,Wq); 551 0x3: PACKSSWB(Vo,Wo); 552 0x4: PCMPGTB(Vo,Wo); 553 0x5: PCMPGTW(Vo,Wo); 554 0x6: PCMPGTD(Vo,Wo); 555 0x7: PACKUSWB(Vo,Wo); 556 } 557 default: UD2(); 558 } 559 0x0D: decode LEGACY_DECODEVAL { 560 // no prefix 561 0x0: decode OPCODE_OP_BOTTOM3 { 562 0x0: PUNPCKHBW(Pq,Qq); 563 0x1: PUNPCKHWD(Pq,Qq); 564 0x2: PUNPCKHDQ(Pq,Qq); 565 0x3: PACKSSDW(Pq,Qq); 566 0x6: MOVD(Pq,Edp); 567 0x7: MOVQ(Pq,Qq); 568 default: UD2(); 569 } 570 // repe (0xF3) 571 0x4: decode OPCODE_OP_BOTTOM3 { 572 0x7: MOVDQU(Vo,Wo); 573 default: UD2(); 574 } 575 // operand size (0x66) 576 0x1: decode OPCODE_OP_BOTTOM3 { 577 0x0: PUNPCKHBW(Vo,Wo); 578 0x1: PUNPCKHWD(Vo,Wo); 579 0x2: PUNPCKHDQ(Vo,Wo); 580 0x3: PACKSSDW(Vo,Wo); 581 0x4: PUNPCKLQDQ(Vo,Wq); 582 0x5: PUNPCKHQDQ(Vo,Wq); 583 0x6: MOVD(Vo,Edp); 584 0x7: MOVDQA(Vo,Wo); 585 } 586 default: UD2(); 587 } 588 0x0E: decode LEGACY_DECODEVAL { 589 // no prefix 590 0x0: decode OPCODE_OP_BOTTOM3 { 591 0x0: PSHUFW(Pq,Qq,Ib); 592 //0x1: group12_pshimw(); 593 0x1: decode MODRM_REG { 594 0x2: PSRLW(PRq,Ib); 595 0x4: PSRAW(PRq,Ib); 596 0x6: PSLLW(PRq,Ib); 597 default: UD2(); 598 } 599 //0x2: group13_pshimd(); 600 0x2: decode MODRM_REG { 601 0x2: PSRLD(PRq,Ib); 602 0x4: PSRAD(PRq,Ib); 603 0x6: PSLLD(PRq,Ib); 604 default: UD2(); 605 } 606 //0x3: group14_pshimq(); 607 0x3: decode MODRM_REG { 608 0x2: PSRLQ(PRq,Ib); 609 0x6: PSLLQ(PRq,Ib); 610 default: Inst::UD2(); 611 } 612 0x4: Inst::PCMPEQB(Pq,Qq); 613 0x5: Inst::PCMPEQW(Pq,Qq); 614 0x6: Inst::PCMPEQD(Pq,Qq); 615 0x7: WarnUnimpl::emms(); 616 } 617 // repe (0xF3) 618 0x4: decode OPCODE_OP_BOTTOM3 { 619 0x0: PSHUFHW(Vo,Wo,Ib); 620 default: UD2(); 621 } 622 // operand size (0x66) 623 0x1: decode OPCODE_OP_BOTTOM3 { 624 0x0: PSHUFD(Vo,Wo,Ib); 625 //0x1: group12_pshimw(); 626 0x1: decode MODRM_REG { 627 0x2: PSRLW(VRo,Ib); 628 0x4: PSRAW(VRo,Ib); 629 0x6: PSLLW(VRo,Ib); 630 } 631 //0x2: group13_pshimd(); 632 0x2: decode MODRM_REG { 633 0x2: PSRLD(VRo,Ib); 634 0x4: PSRAD(VRo,Ib); 635 0x6: PSLLD(VRo,Ib); 636 default: UD2(); 637 } 638 //0x3: group14_pshimq(); 639 0x3: decode MODRM_REG { 640 0x2: PSRLQ(VRo,Ib); 641 0x3: PSRLDQ(VRo,Ib); 642 0x6: PSLLQ(VRo,Ib); 643 0x7: PSLLDQ(VRo,Ib); 644 default: UD2(); 645 } 646 0x4: PCMPEQB(Vo,Wo); 647 0x5: PCMPEQW(Vo,Wo); 648 0x6: PCMPEQD(Vo,Wo); 649 default: UD2(); 650 } 651 // repne (0xF2) 652 0x8: decode OPCODE_OP_BOTTOM3 { 653 0x0: PSHUFLW(Vo,Wo,Ib); 654 default: UD2(); 655 } 656 default: UD2(); 657 } 658 0x0F: decode LEGACY_DECODEVAL { 659 // no prefix 660 0x0: decode OPCODE_OP_BOTTOM3 { 661 0x0: WarnUnimpl::vmread_Edp_Gdp(); 662 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 663 0x6: MOVD(Edp,Pdp); 664 0x7: MOVQ(Qq,Pq); 665 default: UD2(); 666 } 667 // repe (0xF3) 668 0x4: decode OPCODE_OP_BOTTOM3 { 669 0x6: MOVQ(Vq,Wq); 670 0x7: MOVDQU(Wo,Vo); 671 default: UD2(); 672 } 673 // operand size (0x66) 674 0x1: decode OPCODE_OP_BOTTOM3 { 675 0x4: HADDPD(Vo,Wo); 676 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 677 0x6: MOVD(Edp,Vd); 678 0x7: MOVDQA(Wo,Vo); 679 default: UD2(); 680 } 681 // repne (0xF2) 682 0x8: decode OPCODE_OP_BOTTOM3 { 683 0x4: WarnUnimpl::haddps_Vo_Wo(); 684 0x5: WarnUnimpl::hsubps_Vo_Wo(); 685 default: UD2(); 686 } 687 default: UD2(); 688 } 689 0x10: decode OPCODE_OP_BOTTOM3 { 690 0x0: JO(Jz); 691 0x1: JNO(Jz); 692 0x2: JB(Jz); 693 0x3: JNB(Jz); 694 0x4: JZ(Jz); 695 0x5: JNZ(Jz); 696 0x6: JBE(Jz); 697 0x7: JNBE(Jz); 698 } 699 0x11: decode OPCODE_OP_BOTTOM3 { 700 0x0: JS(Jz); 701 0x1: JNS(Jz); 702 0x2: JP(Jz); 703 0x3: JNP(Jz); 704 0x4: JL(Jz); 705 0x5: JNL(Jz); 706 0x6: JLE(Jz); 707 0x7: JNLE(Jz); 708 } 709 0x12: decode OPCODE_OP_BOTTOM3 { 710 0x0: SETO(Eb); 711 0x1: SETNO(Eb); 712 0x2: SETB(Eb); 713 0x3: SETNB(Eb); 714 0x4: SETZ(Eb); 715 0x5: SETNZ(Eb); 716 0x6: SETBE(Eb); 717 0x7: SETNBE(Eb); 718 } 719 0x13: decode OPCODE_OP_BOTTOM3 { 720 0x0: SETS(Eb); 721 0x1: SETNS(Eb); 722 0x2: SETP(Eb); 723 0x3: SETNP(Eb); 724 0x4: SETL(Eb); 725 0x5: SETNL(Eb); 726 0x6: SETLE(Eb); 727 0x7: SETNLE(Eb); 728 } 729 } 730 0x14: decode OPCODE_OP_BOTTOM3 { 731 0x0: push_fs(); 732 0x1: pop_fs(); 733 0x2: CPUIDInst::CPUID({{ 734 CpuidResult result; 735 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 736 bits(Rcx, 31, 0), result); 737 Rax = result.rax; 738 Rbx = result.rbx; 739 Rcx = result.rcx; 740 Rdx = result.rdx; 741 }}); 742 0x3: Inst::BT(Ev,Gv); 743 0x4: Inst::SHLD(Ev,Gv,Ib); 744 0x5: Inst::SHLD(Ev,Gv); 745 default: Inst::UD2(); 746 } 747 0x15: decode OPCODE_OP_BOTTOM3 { 748 0x0: push_gs(); 749 0x1: pop_gs(); 750 0x2: rsm_smm(); 751 0x3: Inst::BTS(Ev,Gv); 752 0x4: Inst::SHRD(Ev,Gv,Ib); 753 0x5: Inst::SHRD(Ev,Gv); 754 //0x6: group15(); 755 0x6: decode MODRM_MOD { 756 0x3: decode MODRM_REG { 757 0x5: BasicOperate::LFENCE( 758 {{/*Nothing*/}}, IsReadBarrier); 759 0x6: BasicOperate::MFENCE( 760 {{/*Nothing*/}}, IsMemBarrier); 761 0x7: BasicOperate::SFENCE( 762 {{/*Nothing*/}}, IsWriteBarrier); 763 default: Inst::UD2(); 764 } 765 default: decode MODRM_REG { 766 0x0: fxsave(); 767 0x1: fxrstor(); 768 0x2: Inst::LDMXCSR(Md); 769 0x3: Inst::STMXCSR(Md); 770 0x4: xsave(); 771 0x5: xrstor(); 772 0x6: Inst::UD2(); 773 0x7: clflush(); 774 } 775 } 776 0x7: Inst::IMUL(Gv,Ev); 777 } 778 format Inst { 779 0x16: decode OPCODE_OP_BOTTOM3 { 780 0x0: CMPXCHG(Eb,Gb); 781 0x1: CMPXCHG(Ev,Gv); 782 0x2: WarnUnimpl::lss_Gz_Mp(); 783 0x3: BTR(Ev,Gv); 784 0x4: WarnUnimpl::lfs_Gz_Mp(); 785 0x5: WarnUnimpl::lgs_Gz_Mp(); 786 //The size of the second operand in these instructions 787 //should really be "b" or "w", but it's set to v in order 788 //to have a consistent register size. This shouldn't 789 //affect behavior. 790 0x6: MOVZX_B(Gv,Ev); 791 0x7: MOVZX_W(Gv,Ev); 792 } 793 0x17: decode OPCODE_OP_BOTTOM3 { 794 0x0: decode LEGACY_REP { 795 0x0: WarnUnimpl::jmpe_Jz(); 796 0x1: WarnUnimpl::popcnt_Gv_Ev(); 797 } 798 //0x1: group10_UD2(); 799 0x1: UD2(); 800 //0x2: group8_Ev_Ib(); 801 0x2: decode MODRM_REG { 802 0x4: BT(Ev,Ib); 803 0x5: BTS(Ev,Ib); 804 0x6: BTR(Ev,Ib); 805 0x7: BTC(Ev,Ib); 806 default: UD2(); 807 } 808 0x3: BTC(Ev,Gv); 809 0x4: BSF(Gv,Ev); 810 0x5: BSR(Gv,Ev); 811 //The size of the second operand in these instructions 812 //should really be "b" or "w", but it's set to v in order 813 //to have a consistent register size. This shouldn't 814 //affect behavior. 815 0x6: MOVSX_B(Gv,Ev); 816 0x7: MOVSX_W(Gv,Ev); 817 } 818 0x18: decode OPCODE_OP_BOTTOM3 { 819 0x0: XADD(Eb,Gb); 820 0x1: XADD(Ev,Gv); 821 //0x7: group9(); 822 0x7: decode MODRM_REG { 823 //Also CMPXCHG16B 824 0x1: CMPXCHG8B(Mdp); 825 0x6: decode LEGACY_OP { 826 0x1: WarnUnimpl::vmclear_Mq(); 827 default: decode LEGACY_REP { 828 0x1: WarnUnimpl::vmxon_Mq(); 829 0x0: WarnUnimpl::vmptrld_Mq(); 830 } 831 } 832 0x7: WarnUnimpl::vmptrst_Mq(); 833 default: UD2(); 834 } 835 default: decode LEGACY_DECODEVAL { 836 // no prefix 837 0x0: decode OPCODE_OP_BOTTOM3 { 838 0x2: CMPPS(Vo,Wo,Ib); 839 0x3: MOVNTI(Mdp,Gdp); 840 0x4: PINSRW(Pq,Ew,Ib); 841 0x5: PEXTRW(Gd,PRq,Ib); 842 0x6: SHUFPS(Vps,Wps,Ib); 843 } 844 // repe (0xF3) 845 0x4: decode OPCODE_OP_BOTTOM3 { 846 0x2: CMPSS(Vd,Wd,Ib); 847 default: UD2(); 848 } 849 // operand size (0x66) 850 0x1: decode OPCODE_OP_BOTTOM3 { 851 0x2: CMPPD(Vo,Wo,Ib); 852 0x4: PINSRW(Vdw,Ew,Ib); 853 0x5: PEXTRW(Gd,VRdq,Ib); 854 0x6: SHUFPD(Vpd,Wpd,Ib); 855 default: UD2(); 856 } 857 // repne (0xF2) 858 0x8: decode OPCODE_OP_BOTTOM3 { 859 0x2: CMPSD(Vq,Wq,Ib); 860 default: UD2(); 861 } 862 default: UD2(); 863 } 864 } 865 0x19: decode OPSIZE { 866 4: BSWAP_D(Bd); 867 8: BSWAP_Q(Bq); 868 default: UD2(); 869 } 870 0x1A: decode LEGACY_DECODEVAL { 871 // no prefix 872 0x0: decode OPCODE_OP_BOTTOM3 { 873 0x1: PSRLW(Pq,Qq); 874 0x2: PSRLD(Pq,Qq); 875 0x3: PSRLQ(Pq,Qq); 876 0x4: PADDQ(Pq,Qq); 877 0x5: PMULLW(Pq,Qq); 878 0x7: PMOVMSKB(Gd,PRq); 879 default: UD2(); 880 } 881 // repe (0xF3) 882 0x4: decode OPCODE_OP_BOTTOM3 { 883 0x6: MOVQ2DQ(Vo,PRq); 884 default: UD2(); 885 } 886 // operand size (0x66) 887 0x1: decode OPCODE_OP_BOTTOM3 { 888 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 889 0x1: PSRLW(Vo,Wo); 890 0x2: PSRLD(Vo,Wo); 891 0x3: PSRLQ(Vo,Wo); 892 0x4: PADDQ(Vo,Wo); 893 0x5: PMULLW(Vo,Wo); 894 0x6: MOVQ(Wq,Vq); 895 0x7: PMOVMSKB(Gd,VRo); 896 } 897 // repne (0xF2) 898 0x8: decode OPCODE_OP_BOTTOM3 { 899 0x0: WarnUnimpl::addsubps_Vo_Wo(); 900 0x6: MOVDQ2Q(Pq,VRq); 901 default: UD2(); 902 } 903 default: UD2(); 904 } 905 0x1B: decode LEGACY_DECODEVAL { 906 // no prefix 907 0x0: decode OPCODE_OP_BOTTOM3 { 908 0x0: PSUBUSB(Pq,Qq); 909 0x1: PSUBUSW(Pq,Qq); 910 0x2: PMINUB(Pq,Qq); 911 0x3: PAND(Pq,Qq); 912 0x4: PADDUSB(Pq,Qq); 913 0x5: PADDUSW(Pq,Qq); 914 0x6: PMAXUB(Pq,Qq); 915 0x7: PANDN(Pq,Qq); 916 } 917 // operand size (0x66) 918 0x1: decode OPCODE_OP_BOTTOM3 { 919 0x0: PSUBUSB(Vo,Wo); 920 0x1: PSUBUSW(Vo,Wo); 921 0x2: PMINUB(Vo,Wo); 922 0x3: PAND(Vo,Wo); 923 0x4: PADDUSB(Vo,Wo); 924 0x5: PADDUSW(Vo,Wo); 925 0x6: PMAXUB(Vo,Wo); 926 0x7: PANDN(Vo,Wo); 927 } 928 default: UD2(); 929 } 930 0x1C: decode LEGACY_DECODEVAL { 931 // no prefix 932 0x0: decode OPCODE_OP_BOTTOM3 { 933 0x0: PAVGB(Pq,Qq); 934 0x1: PSRAW(Pq,Qq); 935 0x2: PSRAD(Pq,Qq); 936 0x3: PAVGW(Pq,Qq); 937 0x4: PMULHUW(Pq,Qq); 938 0x5: PMULHW(Pq,Qq); 939 0x7: WarnUnimpl::movntq_Mq_Pq(); 940 default: UD2(); 941 } 942 // repe (0xF3) 943 0x4: decode OPCODE_OP_BOTTOM3 { 944 0x6: CVTDQ2PD(Vo,Wq); 945 default: UD2(); 946 } 947 // operand size (0x66) 948 0x1: decode OPCODE_OP_BOTTOM3 { 949 0x0: PAVGB(Vo,Wo); 950 0x1: PSRAW(Vo,Wo); 951 0x2: PSRAD(Vo,Wo); 952 0x3: PAVGW(Vo,Wo); 953 0x4: PMULHUW(Vo,Wo); 954 0x5: PMULHW(Vo,Wo); 955 0x6: CVTTPD2DQ(Vo,Wo); 956 0x7: WarnUnimpl::movntdq_Mo_Vo(); 957 } 958 // repne (0xF2) 959 0x8: decode OPCODE_OP_BOTTOM3 { 960 0x6: CVTPD2DQ(Vo,Wo); 961 default: UD2(); 962 } 963 default: UD2(); 964 } 965 0x1D: decode LEGACY_DECODEVAL { 966 // no prefix 967 0x0: decode OPCODE_OP_BOTTOM3 { 968 0x0: PSUBSB(Pq,Qq); 969 0x1: PSUBSW(Pq,Qq); 970 0x2: PMINSW(Pq,Qq); 971 0x3: POR(Pq,Qq); 972 0x4: PADDSB(Pq,Qq); 973 0x5: PADDSW(Pq,Qq); 974 0x6: PMAXSW(Pq,Qq); 975 0x7: PXOR(Pq,Qq); 976 } 977 // operand size (0x66) 978 0x1: decode OPCODE_OP_BOTTOM3 { 979 0x0: PSUBSB(Vo,Wo); 980 0x1: PSUBSW(Vo,Wo); 981 0x2: PMINSW(Vo,Wo); 982 0x3: POR(Vo,Wo); 983 0x4: PADDSB(Vo,Wo); 984 0x5: PADDSW(Vo,Wo); 985 0x6: PMAXSW(Vo,Wo); 986 0x7: PXOR(Vo,Wo); 987 } 988 default: UD2(); 989 } 990 0x1E: decode LEGACY_DECODEVAL { 991 // no prefix 992 0x0: decode OPCODE_OP_BOTTOM3 { 993 0x1: PSLLW(Pq,Qq); 994 0x2: PSLLD(Pq,Qq); 995 0x3: PSLLQ(Pq,Qq); 996 0x4: PMULUDQ(Pq,Qq); 997 0x5: PMADDWD(Pq,Qq); 998 0x6: PSADBW(Pq,Qq); 999 0x7: MASKMOVQ(Pq,PRq); 1000 default: UD2(); 1001 } 1002 // operand size (0x66) 1003 0x1: decode OPCODE_OP_BOTTOM3 { 1004 0x1: PSLLW(Vo,Wo); 1005 0x2: PSLLD(Vo,Wo); 1006 0x3: PSLLQ(Vo,Wo); 1007 0x4: PMULUDQ(Vo,Wo); 1008 0x5: PMADDWD(Vo,Wo); 1009 0x6: PSADBW(Vo,Wo); 1010 0x7: MASKMOVDQU(Vo,VRo); 1011 default: UD2(); 1012 } 1013 // repne (0xF2) 1014 0x8: decode OPCODE_OP_BOTTOM3 { 1015 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1016 default: UD2(); 1017 } 1018 default: UD2(); 1019 } 1020 0x1F: decode LEGACY_DECODEVAL { 1021 // no prefix 1022 0x0: decode OPCODE_OP_BOTTOM3 { 1023 0x0: PSUBB(Pq,Qq); 1024 0x1: PSUBW(Pq,Qq); 1025 0x2: PSUBD(Pq,Qq); 1026 0x3: PSUBQ(Pq,Qq); 1027 0x4: PADDB(Pq,Qq); 1028 0x5: PADDW(Pq,Qq); 1029 0x6: PADDD(Pq,Qq); 1030 0x7: UD2(); 1031 } 1032 // operand size (0x66) 1033 0x1: decode OPCODE_OP_BOTTOM3 { 1034 0x0: PSUBB(Vo,Wo); 1035 0x1: PSUBW(Vo,Wo); 1036 0x2: PSUBD(Vo,Wo); 1037 0x3: PSUBQ(Vo,Wo); 1038 0x4: PADDB(Vo,Wo); 1039 0x5: PADDW(Vo,Wo); 1040 0x6: PADDD(Vo,Wo); 1041 0x7: UD2(); 1042 } 1043 default: UD2(); 1044 } 1045 } 1046 default: FailUnimpl::twoByteOps(); 1047 } 1048 } 1049 default: M5InternalError::error( 1050 {{"Unexpected first opcode byte in two byte opcode!"}}); 1051} 1052