14825Sgblack@eecs.umich.edu// Copyright (c) 2007 The Hewlett-Packard Development Company 29582Snilay@cs.wisc.edu// Copyright (c) 2012-13 Mark D. Hill and David A. Wood 311159Ssteve.reinhardt@amd.com// Copyright (c) 2015 Advanced Micro Devices, Inc. 411159Ssteve.reinhardt@amd.com// 54825Sgblack@eecs.umich.edu// All rights reserved. 64825Sgblack@eecs.umich.edu// 77087Snate@binkert.org// The license below extends only to copyright in the software and shall 87087Snate@binkert.org// not be construed as granting a license to any other intellectual 97087Snate@binkert.org// property including but not limited to intellectual property relating 107087Snate@binkert.org// to a hardware implementation of the functionality of the software 117087Snate@binkert.org// licensed hereunder. You may use the software subject to the license 127087Snate@binkert.org// terms below provided that you ensure that this notice is replicated 137087Snate@binkert.org// unmodified and in its entirety in all distributions of the software, 147087Snate@binkert.org// modified or unmodified, in source code or in binary form. 154825Sgblack@eecs.umich.edu// 167087Snate@binkert.org// Redistribution and use in source and binary forms, with or without 177087Snate@binkert.org// modification, are permitted provided that the following conditions are 187087Snate@binkert.org// met: redistributions of source code must retain the above copyright 197087Snate@binkert.org// notice, this list of conditions and the following disclaimer; 207087Snate@binkert.org// redistributions in binary form must reproduce the above copyright 217087Snate@binkert.org// notice, this list of conditions and the following disclaimer in the 227087Snate@binkert.org// documentation and/or other materials provided with the distribution; 237087Snate@binkert.org// neither the name of the copyright holders nor the names of its 244825Sgblack@eecs.umich.edu// contributors may be used to endorse or promote products derived from 257087Snate@binkert.org// this software without specific prior written permission. 264825Sgblack@eecs.umich.edu// 274825Sgblack@eecs.umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 284825Sgblack@eecs.umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 294825Sgblack@eecs.umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 304825Sgblack@eecs.umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 314825Sgblack@eecs.umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 324825Sgblack@eecs.umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 334825Sgblack@eecs.umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 344825Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 354825Sgblack@eecs.umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 364825Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 374825Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 384825Sgblack@eecs.umich.edu// 394825Sgblack@eecs.umich.edu// Authors: Gabe Black 409582Snilay@cs.wisc.edu// Nilay Vaish 4111159Ssteve.reinhardt@amd.com// Steve Reinhardt 424825Sgblack@eecs.umich.edu 435162Sgblack@eecs.umich.eduformat WarnUnimpl { 445162Sgblack@eecs.umich.edu 0x1B: decode OPCODE_OP_BOTTOM3 { 455162Sgblack@eecs.umich.edu 0x0: decode MODRM_REG { 4610044Snilay@cs.wisc.edu 0x0: decode MODRM_MOD { 4710044Snilay@cs.wisc.edu 0x3: Inst::FADD1(Eq); 4810044Snilay@cs.wisc.edu // 32-bit memory operand 4910044Snilay@cs.wisc.edu default: Inst::FADD1(Md); 5010044Snilay@cs.wisc.edu } 5110784Snilay@cs.wisc.edu 0x1: decode MODRM_MOD { 5210784Snilay@cs.wisc.edu 0x3: Inst::FMUL1(Eq); 5310784Snilay@cs.wisc.edu default: Inst::FMUL1(Md); 5410784Snilay@cs.wisc.edu } 555162Sgblack@eecs.umich.edu 0x2: fcom(); 565162Sgblack@eecs.umich.edu 0x3: fcomp(); 5710044Snilay@cs.wisc.edu 0x4: decode MODRM_MOD { 5810044Snilay@cs.wisc.edu 0x3: Inst::FSUB1(Eq); 5910044Snilay@cs.wisc.edu default: Inst::FSUB1(Md); 6010044Snilay@cs.wisc.edu } 615162Sgblack@eecs.umich.edu 0x5: fsubr(); 6210784Snilay@cs.wisc.edu 0x6: decode MODRM_MOD { 6310784Snilay@cs.wisc.edu 0x3: Inst::FDIV1(Eq); 6410784Snilay@cs.wisc.edu default: Inst::FDIV1(Md); 6510784Snilay@cs.wisc.edu } 665162Sgblack@eecs.umich.edu 0x7: fdivr(); 674825Sgblack@eecs.umich.edu } 685162Sgblack@eecs.umich.edu 0x1: decode MODRM_REG { 699582Snilay@cs.wisc.edu 0x0: decode MODRM_MOD { 709582Snilay@cs.wisc.edu 0x3: Inst::FLD(Eq); 719582Snilay@cs.wisc.edu // 32-bit load 729582Snilay@cs.wisc.edu default: Inst::FLD(Md); 739582Snilay@cs.wisc.edu } 745162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 7510043Snilay@cs.wisc.edu 0x3: Inst::FXCH(Eq); 764825Sgblack@eecs.umich.edu default: Inst::UD2(); 774825Sgblack@eecs.umich.edu } 785162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 795162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 805162Sgblack@eecs.umich.edu 0x0: fnop(); 815162Sgblack@eecs.umich.edu default: Inst::UD2(); 825162Sgblack@eecs.umich.edu } 839894Sandreas@sandberg.pp.se default: Inst::FST(Ed); 845162Sgblack@eecs.umich.edu } 855162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 865162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 879894Sandreas@sandberg.pp.se default: Inst::FSTP(Ed); 885162Sgblack@eecs.umich.edu } 895162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 905162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 919470Snilay@cs.wisc.edu 0x0: Inst::FCHS(); 929470Snilay@cs.wisc.edu 0x1: Inst::FABS(); 935162Sgblack@eecs.umich.edu 0x4: ftst(); 945162Sgblack@eecs.umich.edu 0x5: fxam(); 955162Sgblack@eecs.umich.edu default: Inst::UD2(); 965162Sgblack@eecs.umich.edu } 979895Sandreas@sandberg.pp.se default: Inst::FLDENV(M); 985162Sgblack@eecs.umich.edu } 995162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 1005162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 1019582Snilay@cs.wisc.edu 0x0: Inst::FLD1(); 1029582Snilay@cs.wisc.edu 0x1: Inst::FLDL2T(); 1039582Snilay@cs.wisc.edu 0x2: Inst::FLDL2E(); 1049582Snilay@cs.wisc.edu 0x3: Inst::FLDPI(); 1059582Snilay@cs.wisc.edu 0x4: Inst::FLDLG2(); 1069582Snilay@cs.wisc.edu 0x5: Inst::FLDLN2(); 1079582Snilay@cs.wisc.edu 0x6: Inst::FLDZ(); 1085162Sgblack@eecs.umich.edu } 1099582Snilay@cs.wisc.edu default: Inst::FLDCW(Mw); 1105162Sgblack@eecs.umich.edu } 1115162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 1125162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 1135162Sgblack@eecs.umich.edu 0x0: f2xm1(); 1149582Snilay@cs.wisc.edu 0x1: Inst::FYL2X(); 1159582Snilay@cs.wisc.edu 0x2: Inst::FPTAN(); 1165162Sgblack@eecs.umich.edu 0x3: fpatan(); 1175162Sgblack@eecs.umich.edu 0x4: fxtract(); 1189582Snilay@cs.wisc.edu 0x5: Inst::FPREM1(); 1195162Sgblack@eecs.umich.edu 0x6: fdecstp(); 1205162Sgblack@eecs.umich.edu 0x7: fincstp(); 1215162Sgblack@eecs.umich.edu } 1229895Sandreas@sandberg.pp.se default: Inst::FNSTENV(M); 1235162Sgblack@eecs.umich.edu } 1245162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 1255162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 1269582Snilay@cs.wisc.edu 0x0: Inst::FPREM(); 1275162Sgblack@eecs.umich.edu 0x1: fyl2xp1(); 1285162Sgblack@eecs.umich.edu 0x2: fsqrt(); 1299371Snilay@cs.wisc.edu 0x3: Inst::FSINCOS(); 1305162Sgblack@eecs.umich.edu 0x4: frndint(); 1315162Sgblack@eecs.umich.edu 0x5: fscale(); 1329472Snilay@cs.wisc.edu 0x6: Inst::FSIN(); 1339472Snilay@cs.wisc.edu 0x7: Inst::FCOS(); 1345162Sgblack@eecs.umich.edu } 1359372Snilay@cs.wisc.edu default: Inst::FNSTCW(Mw); 1365162Sgblack@eecs.umich.edu } 1374825Sgblack@eecs.umich.edu } 1385162Sgblack@eecs.umich.edu //0x2: esc2(); 1395162Sgblack@eecs.umich.edu 0x2: decode MODRM_REG { 1405162Sgblack@eecs.umich.edu 0x0: decode MODRM_MOD { 1415162Sgblack@eecs.umich.edu 0x3: fcmovb(); 1425162Sgblack@eecs.umich.edu default: fiadd(); 1435162Sgblack@eecs.umich.edu } 1445162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 1455162Sgblack@eecs.umich.edu 0x3: fcmove(); 1465162Sgblack@eecs.umich.edu default: fimul(); 1475162Sgblack@eecs.umich.edu } 1485162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 1495162Sgblack@eecs.umich.edu 0x3: fcmovbe(); 1505162Sgblack@eecs.umich.edu default: ficom(); 1515162Sgblack@eecs.umich.edu } 1525162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 1535162Sgblack@eecs.umich.edu 0x3: fcmovu(); 1545162Sgblack@eecs.umich.edu default: ficomp(); 1555162Sgblack@eecs.umich.edu } 1565162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 1575162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 1585162Sgblack@eecs.umich.edu default: fisub(); 1595162Sgblack@eecs.umich.edu } 1605162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 1615162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 1625162Sgblack@eecs.umich.edu 0x1: fucompp(); 1635162Sgblack@eecs.umich.edu default: Inst::UD2(); 1645162Sgblack@eecs.umich.edu } 1655162Sgblack@eecs.umich.edu default: fisubr(); 1665162Sgblack@eecs.umich.edu } 1675162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 1685162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 1695162Sgblack@eecs.umich.edu default: fidiv(); 1705162Sgblack@eecs.umich.edu } 1715162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 1725162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 1735162Sgblack@eecs.umich.edu default: fidivr(); 1745162Sgblack@eecs.umich.edu } 1754825Sgblack@eecs.umich.edu } 1765162Sgblack@eecs.umich.edu //0x3: esc3(); 1775162Sgblack@eecs.umich.edu 0x3: decode MODRM_REG { 1785162Sgblack@eecs.umich.edu 0x0: decode MODRM_MOD { 1795162Sgblack@eecs.umich.edu 0x3: fcmovnb(); 18011159Ssteve.reinhardt@amd.com default: Inst::FILD(Md); // 32-bit int 1815162Sgblack@eecs.umich.edu } 1825162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 1835162Sgblack@eecs.umich.edu 0x3: fcmovne(); 1845162Sgblack@eecs.umich.edu default: fisttp(); 1855162Sgblack@eecs.umich.edu } 1865162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 1875162Sgblack@eecs.umich.edu 0x3: fcmovnbe(); 1885162Sgblack@eecs.umich.edu default: fist(); 1895162Sgblack@eecs.umich.edu } 1905162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 1915162Sgblack@eecs.umich.edu 0x3: fcmovnu(); 1925162Sgblack@eecs.umich.edu default: fistp(); 1935162Sgblack@eecs.umich.edu } 1945162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 1955162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 1965162Sgblack@eecs.umich.edu 0x2: fnclex(); 1975162Sgblack@eecs.umich.edu 0x3: fninit(); 1985162Sgblack@eecs.umich.edu default: Inst::UD2(); 1995162Sgblack@eecs.umich.edu } 2004825Sgblack@eecs.umich.edu default: Inst::UD2(); 2014825Sgblack@eecs.umich.edu } 2025162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 20311159Ssteve.reinhardt@amd.com // 'R' insists on having a size qualifier, so I picked 'q', 20411159Ssteve.reinhardt@amd.com // but I don't think it has any effect 20511159Ssteve.reinhardt@amd.com 0x3: Inst::FUCOMI(Rq); 2069582Snilay@cs.wisc.edu // 80-bit load 2079894Sandreas@sandberg.pp.se default: Inst::FLD80(M); 2084825Sgblack@eecs.umich.edu } 2095162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 2105162Sgblack@eecs.umich.edu 0x3: fcomi(); 2114825Sgblack@eecs.umich.edu default: Inst::UD2(); 2124825Sgblack@eecs.umich.edu } 2135162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 2145162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2159894Sandreas@sandberg.pp.se default: Inst::FST80P(M); 2165162Sgblack@eecs.umich.edu } 2174825Sgblack@eecs.umich.edu } 2185162Sgblack@eecs.umich.edu //0x4: esc4(); 2195162Sgblack@eecs.umich.edu 0x4: decode MODRM_REG { 22010044Snilay@cs.wisc.edu 0x0: decode MODRM_MOD { 22110044Snilay@cs.wisc.edu 0x3: Inst::FADD2(Eq); 22210044Snilay@cs.wisc.edu default: Inst::FADD2(Mq); 22310044Snilay@cs.wisc.edu } 22410784Snilay@cs.wisc.edu 0x1: decode MODRM_MOD { 22510784Snilay@cs.wisc.edu 0x3: Inst::FMUL2(Eq); 22610784Snilay@cs.wisc.edu default: Inst::FMUL2(Mq); 22710784Snilay@cs.wisc.edu } 2285162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 2295162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2305162Sgblack@eecs.umich.edu default: fcom(); 2315162Sgblack@eecs.umich.edu } 2325162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 2335162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2345162Sgblack@eecs.umich.edu default: fcomp(); 2355162Sgblack@eecs.umich.edu } 2365162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 2375162Sgblack@eecs.umich.edu 0x3: fsubr(); 23810044Snilay@cs.wisc.edu default: Inst::FSUB2(Mq); 2395162Sgblack@eecs.umich.edu } 2405162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 24110044Snilay@cs.wisc.edu 0x3: Inst::FSUB2(Eq); 2425162Sgblack@eecs.umich.edu default: fsubr(); 2435162Sgblack@eecs.umich.edu } 2445162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 2455162Sgblack@eecs.umich.edu 0x3: fdivr(); 24610784Snilay@cs.wisc.edu default: Inst::FDIV2(Mq); 2475162Sgblack@eecs.umich.edu } 2485162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 24910784Snilay@cs.wisc.edu 0x3: Inst::FDIV2(Eq); 2505162Sgblack@eecs.umich.edu default: fdivr(); 2515162Sgblack@eecs.umich.edu } 2524825Sgblack@eecs.umich.edu } 2535162Sgblack@eecs.umich.edu //0x5: esc5(); 2545162Sgblack@eecs.umich.edu 0x5: decode MODRM_REG { 2555162Sgblack@eecs.umich.edu 0x0: decode MODRM_MOD { 2565162Sgblack@eecs.umich.edu 0x3: ffree(); 2579582Snilay@cs.wisc.edu // 64-bit load 2585162Sgblack@eecs.umich.edu default: Inst::FLD(Mq); 2595162Sgblack@eecs.umich.edu } 2605162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 2615162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2625162Sgblack@eecs.umich.edu default: fisttp(); 2635162Sgblack@eecs.umich.edu } 26410043Snilay@cs.wisc.edu 0x2: decode MODRM_MOD { 26510043Snilay@cs.wisc.edu 0x3: Inst::FST(Eq); 26610043Snilay@cs.wisc.edu default: Inst::FST(Mq); 26710043Snilay@cs.wisc.edu } 26810043Snilay@cs.wisc.edu 0x3: decode MODRM_MOD { 26910043Snilay@cs.wisc.edu 0x3: Inst::FSTP(Eq); 27010043Snilay@cs.wisc.edu default: Inst::FSTP(Mq); 27110043Snilay@cs.wisc.edu } 2725162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 2735162Sgblack@eecs.umich.edu 0x3: fucom(); 2745162Sgblack@eecs.umich.edu default: frstor(); 2755162Sgblack@eecs.umich.edu } 2765162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 2775162Sgblack@eecs.umich.edu 0x3: fucomp(); 2784825Sgblack@eecs.umich.edu default: Inst::UD2(); 2794825Sgblack@eecs.umich.edu } 2805162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 2815162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2825162Sgblack@eecs.umich.edu default: fnsave(); 2835162Sgblack@eecs.umich.edu } 2845162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 2855162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 2869372Snilay@cs.wisc.edu default: Inst::FNSTSW(Mw); 2875162Sgblack@eecs.umich.edu } 2884825Sgblack@eecs.umich.edu } 2895162Sgblack@eecs.umich.edu //0x6: esc6(); 2905162Sgblack@eecs.umich.edu 0x6: decode MODRM_REG { 2915162Sgblack@eecs.umich.edu 0x0: decode MODRM_MOD { 29210044Snilay@cs.wisc.edu 0x3: decode MODRM_RM { 29310044Snilay@cs.wisc.edu 0x1: Inst::FADDP(); 29410044Snilay@cs.wisc.edu default: Inst::FADDP(Eq); 29510044Snilay@cs.wisc.edu } 2965162Sgblack@eecs.umich.edu default: fiadd(); 2975162Sgblack@eecs.umich.edu } 2985162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 29910784Snilay@cs.wisc.edu 0x3: Inst::FMULP(Eq); 3005162Sgblack@eecs.umich.edu default: fimul(); 3015162Sgblack@eecs.umich.edu } 3025162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 3035162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 3045162Sgblack@eecs.umich.edu default: ficom(); 3055162Sgblack@eecs.umich.edu } 3065162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 3075162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 3085162Sgblack@eecs.umich.edu 0x1: fcompp(); 3095162Sgblack@eecs.umich.edu default: Inst::UD2(); 3105162Sgblack@eecs.umich.edu } 3115162Sgblack@eecs.umich.edu default: ficomp(); 3125162Sgblack@eecs.umich.edu } 3135162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 3145162Sgblack@eecs.umich.edu 0x3: fsubrp(); 3155162Sgblack@eecs.umich.edu default: fisub(); 3165162Sgblack@eecs.umich.edu } 3175162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 31810044Snilay@cs.wisc.edu 0x3: decode MODRM_RM { 31910044Snilay@cs.wisc.edu 0x1: Inst::FSUBP(); 32010044Snilay@cs.wisc.edu default: Inst::FSUBP(Eq); 32110044Snilay@cs.wisc.edu } 3225162Sgblack@eecs.umich.edu default: fisubr(); 3235162Sgblack@eecs.umich.edu } 3245162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 3255162Sgblack@eecs.umich.edu 0x3: fdivrp(); 3265162Sgblack@eecs.umich.edu default: fidiv(); 3275162Sgblack@eecs.umich.edu } 3285162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 32910784Snilay@cs.wisc.edu 0x3: Inst::FDIVP(Eq); 3305162Sgblack@eecs.umich.edu default: fidivr(); 3315162Sgblack@eecs.umich.edu } 3324825Sgblack@eecs.umich.edu } 3335162Sgblack@eecs.umich.edu //0x7: esc7(); 3345162Sgblack@eecs.umich.edu 0x7: decode MODRM_REG { 3355162Sgblack@eecs.umich.edu 0x0: decode MODRM_MOD { 3368106Sgblack@eecs.umich.edu // The ffreep instruction isn't entirely real. It should work 3378106Sgblack@eecs.umich.edu // the same as ffree but then also pop the register stack. 3388106Sgblack@eecs.umich.edu 0x3: ffreep(); 33911159Ssteve.reinhardt@amd.com default: Inst::FILD(Mw); // 16-bit int 3404825Sgblack@eecs.umich.edu } 3415162Sgblack@eecs.umich.edu 0x1: decode MODRM_MOD { 3425162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 3435162Sgblack@eecs.umich.edu default: fisttp(); 3444825Sgblack@eecs.umich.edu } 3455162Sgblack@eecs.umich.edu 0x2: decode MODRM_MOD { 3465162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 3475162Sgblack@eecs.umich.edu default: fist(); 3485162Sgblack@eecs.umich.edu } 3495162Sgblack@eecs.umich.edu 0x3: decode MODRM_MOD { 3505162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 3515162Sgblack@eecs.umich.edu default: fistp(); 3525162Sgblack@eecs.umich.edu } 3535162Sgblack@eecs.umich.edu 0x4: decode MODRM_MOD { 3545162Sgblack@eecs.umich.edu 0x3: decode MODRM_RM { 3559372Snilay@cs.wisc.edu 0x0: Inst::FNSTSW(rAw); 3565162Sgblack@eecs.umich.edu default: Inst::UD2(); 3575162Sgblack@eecs.umich.edu } 3585162Sgblack@eecs.umich.edu default: fbld(); 3595162Sgblack@eecs.umich.edu } 3605162Sgblack@eecs.umich.edu 0x5: decode MODRM_MOD { 36111159Ssteve.reinhardt@amd.com // 'R' insists on having a size qualifier, so I picked 'q', 36211159Ssteve.reinhardt@amd.com // but I don't think it has any effect 36311159Ssteve.reinhardt@amd.com 0x3: Inst::FUCOMIP(Rq); 36411159Ssteve.reinhardt@amd.com default: Inst::FILD(Mq); // 64-bit int 3655162Sgblack@eecs.umich.edu } 3665162Sgblack@eecs.umich.edu 0x6: decode MODRM_MOD { 3675162Sgblack@eecs.umich.edu 0x3: fcomip(); 3685162Sgblack@eecs.umich.edu default: fbstp(); 3695162Sgblack@eecs.umich.edu } 3705162Sgblack@eecs.umich.edu 0x7: decode MODRM_MOD { 3715162Sgblack@eecs.umich.edu 0x3: Inst::UD2(); 3725162Sgblack@eecs.umich.edu default: fistp(); 3735162Sgblack@eecs.umich.edu } 3744825Sgblack@eecs.umich.edu } 3754825Sgblack@eecs.umich.edu } 3764825Sgblack@eecs.umich.edu} 377