x87.isa revision 9894:c0a3920859bd
1// Copyright (c) 2007 The Hewlett-Packard Development Company 2// Copyright (c) 2012-13 Mark D. Hill and David A. Wood 3// All rights reserved. 4// 5// The license below extends only to copyright in the software and shall 6// not be construed as granting a license to any other intellectual 7// property including but not limited to intellectual property relating 8// to a hardware implementation of the functionality of the software 9// licensed hereunder. You may use the software subject to the license 10// terms below provided that you ensure that this notice is replicated 11// unmodified and in its entirety in all distributions of the software, 12// modified or unmodified, in source code or in binary form. 13// 14// Redistribution and use in source and binary forms, with or without 15// modification, are permitted provided that the following conditions are 16// met: redistributions of source code must retain the above copyright 17// notice, this list of conditions and the following disclaimer; 18// redistributions in binary form must reproduce the above copyright 19// notice, this list of conditions and the following disclaimer in the 20// documentation and/or other materials provided with the distribution; 21// neither the name of the copyright holders nor the names of its 22// contributors may be used to endorse or promote products derived from 23// this software without specific prior written permission. 24// 25// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36// 37// Authors: Gabe Black 38// Nilay Vaish 39 40format WarnUnimpl { 41 0x1B: decode OPCODE_OP_BOTTOM3 { 42 //0x0: esc0(); 43 0x0: decode MODRM_REG { 44 // ST(0) = ST(0) + 32-bit Mem 45 0x0: fadd(); 46 0x1: fmul(); 47 0x2: fcom(); 48 0x3: fcomp(); 49 0x4: fsub(); 50 0x5: fsubr(); 51 0x6: fdiv(); 52 0x7: fdivr(); 53 } 54 //0x1: esc1(); 55 0x1: decode MODRM_REG { 56 0x0: decode MODRM_MOD { 57 0x3: Inst::FLD(Eq); 58 // 32-bit load 59 default: Inst::FLD(Md); 60 } 61 0x1: decode MODRM_MOD { 62 0x3: fxch(); 63 default: Inst::UD2(); 64 } 65 0x2: decode MODRM_MOD { 66 0x3: decode MODRM_RM { 67 0x0: fnop(); 68 default: Inst::UD2(); 69 } 70 default: Inst::FST(Ed); 71 } 72 0x3: decode MODRM_MOD { 73 0x3: Inst::UD2(); 74 default: Inst::FSTP(Ed); 75 } 76 0x4: decode MODRM_MOD { 77 0x3: decode MODRM_RM { 78 0x0: Inst::FCHS(); 79 0x1: Inst::FABS(); 80 0x4: ftst(); 81 0x5: fxam(); 82 default: Inst::UD2(); 83 } 84 default: fldenv(); 85 } 86 0x5: decode MODRM_MOD { 87 0x3: decode MODRM_RM { 88 0x0: Inst::FLD1(); 89 0x1: Inst::FLDL2T(); 90 0x2: Inst::FLDL2E(); 91 0x3: Inst::FLDPI(); 92 0x4: Inst::FLDLG2(); 93 0x5: Inst::FLDLN2(); 94 0x6: Inst::FLDZ(); 95 } 96 default: Inst::FLDCW(Mw); 97 } 98 0x6: decode MODRM_MOD { 99 0x3: decode MODRM_RM { 100 0x0: f2xm1(); 101 0x1: Inst::FYL2X(); 102 0x2: Inst::FPTAN(); 103 0x3: fpatan(); 104 0x4: fxtract(); 105 0x5: Inst::FPREM1(); 106 0x6: fdecstp(); 107 0x7: fincstp(); 108 } 109 default: fnstenv(); 110 } 111 0x7: decode MODRM_MOD { 112 0x3: decode MODRM_RM { 113 0x0: Inst::FPREM(); 114 0x1: fyl2xp1(); 115 0x2: fsqrt(); 116 0x3: Inst::FSINCOS(); 117 0x4: frndint(); 118 0x5: fscale(); 119 0x6: Inst::FSIN(); 120 0x7: Inst::FCOS(); 121 } 122 default: Inst::FNSTCW(Mw); 123 } 124 } 125 //0x2: esc2(); 126 0x2: decode MODRM_REG { 127 0x0: decode MODRM_MOD { 128 0x3: fcmovb(); 129 default: fiadd(); 130 } 131 0x1: decode MODRM_MOD { 132 0x3: fcmove(); 133 default: fimul(); 134 } 135 0x2: decode MODRM_MOD { 136 0x3: fcmovbe(); 137 default: ficom(); 138 } 139 0x3: decode MODRM_MOD { 140 0x3: fcmovu(); 141 default: ficomp(); 142 } 143 0x4: decode MODRM_MOD { 144 0x3: Inst::UD2(); 145 default: fisub(); 146 } 147 0x5: decode MODRM_MOD { 148 0x3: decode MODRM_RM { 149 0x1: fucompp(); 150 default: Inst::UD2(); 151 } 152 default: fisubr(); 153 } 154 0x6: decode MODRM_MOD { 155 0x3: Inst::UD2(); 156 default: fidiv(); 157 } 158 0x7: decode MODRM_MOD { 159 0x3: Inst::UD2(); 160 default: fidivr(); 161 } 162 } 163 //0x3: esc3(); 164 0x3: decode MODRM_REG { 165 0x0: decode MODRM_MOD { 166 0x3: fcmovnb(); 167 default: fild(); 168 } 169 0x1: decode MODRM_MOD { 170 0x3: fcmovne(); 171 default: fisttp(); 172 } 173 0x2: decode MODRM_MOD { 174 0x3: fcmovnbe(); 175 default: fist(); 176 } 177 0x3: decode MODRM_MOD { 178 0x3: fcmovnu(); 179 default: fistp(); 180 } 181 0x4: decode MODRM_MOD { 182 0x3: decode MODRM_RM { 183 0x2: fnclex(); 184 0x3: fninit(); 185 default: Inst::UD2(); 186 } 187 default: Inst::UD2(); 188 } 189 0x5: decode MODRM_MOD { 190 0x3: fucomi(); 191 // 80-bit load 192 default: Inst::FLD80(M); 193 } 194 0x6: decode MODRM_MOD { 195 0x3: fcomi(); 196 default: Inst::UD2(); 197 } 198 0x7: decode MODRM_MOD { 199 0x3: Inst::UD2(); 200 default: Inst::FST80P(M); 201 } 202 } 203 //0x4: esc4(); 204 0x4: decode MODRM_REG { 205 0x0: fadd(); 206 0x1: fmul(); 207 0x2: decode MODRM_MOD { 208 0x3: Inst::UD2(); 209 default: fcom(); 210 } 211 0x3: decode MODRM_MOD { 212 0x3: Inst::UD2(); 213 default: fcomp(); 214 } 215 0x4: decode MODRM_MOD { 216 0x3: fsubr(); 217 default: fsub(); 218 } 219 0x5: decode MODRM_MOD { 220 0x3: fsub(); 221 default: fsubr(); 222 } 223 0x6: decode MODRM_MOD { 224 0x3: fdivr(); 225 default: fdiv(); 226 } 227 0x7: decode MODRM_MOD { 228 0x3: fdiv(); 229 default: fdivr(); 230 } 231 } 232 //0x5: esc5(); 233 0x5: decode MODRM_REG { 234 0x0: decode MODRM_MOD { 235 0x3: ffree(); 236 // 64-bit load 237 default: Inst::FLD(Mq); 238 } 239 0x1: decode MODRM_MOD { 240 0x3: Inst::UD2(); 241 default: fisttp(); 242 } 243 0x2: Inst::FST(Eq); 244 0x3: Inst::FSTP(Eq); 245 0x4: decode MODRM_MOD { 246 0x3: fucom(); 247 default: frstor(); 248 } 249 0x5: decode MODRM_MOD { 250 0x3: fucomp(); 251 default: Inst::UD2(); 252 } 253 0x6: decode MODRM_MOD { 254 0x3: Inst::UD2(); 255 default: fnsave(); 256 } 257 0x7: decode MODRM_MOD { 258 0x3: Inst::UD2(); 259 default: Inst::FNSTSW(Mw); 260 } 261 } 262 //0x6: esc6(); 263 0x6: decode MODRM_REG { 264 0x0: decode MODRM_MOD { 265 0x3: faddp(); 266 default: fiadd(); 267 } 268 0x1: decode MODRM_MOD { 269 0x3: fmulp(); 270 default: fimul(); 271 } 272 0x2: decode MODRM_MOD { 273 0x3: Inst::UD2(); 274 default: ficom(); 275 } 276 0x3: decode MODRM_MOD { 277 0x3: decode MODRM_RM { 278 0x1: fcompp(); 279 default: Inst::UD2(); 280 } 281 default: ficomp(); 282 } 283 0x4: decode MODRM_MOD { 284 0x3: fsubrp(); 285 default: fisub(); 286 } 287 0x5: decode MODRM_MOD { 288 0x3: fsubp(); 289 default: fisubr(); 290 } 291 0x6: decode MODRM_MOD { 292 0x3: fdivrp(); 293 default: fidiv(); 294 } 295 0x7: decode MODRM_MOD { 296 0x3: fdivp(); 297 default: fidivr(); 298 } 299 } 300 //0x7: esc7(); 301 0x7: decode MODRM_REG { 302 0x0: decode MODRM_MOD { 303 // The ffreep instruction isn't entirely real. It should work 304 // the same as ffree but then also pop the register stack. 305 0x3: ffreep(); 306 default: fild(); 307 } 308 0x1: decode MODRM_MOD { 309 0x3: Inst::UD2(); 310 default: fisttp(); 311 } 312 0x2: decode MODRM_MOD { 313 0x3: Inst::UD2(); 314 default: fist(); 315 } 316 0x3: decode MODRM_MOD { 317 0x3: Inst::UD2(); 318 default: fistp(); 319 } 320 0x4: decode MODRM_MOD { 321 0x3: decode MODRM_RM { 322 0x0: Inst::FNSTSW(rAw); 323 default: Inst::UD2(); 324 } 325 default: fbld(); 326 } 327 0x5: decode MODRM_MOD { 328 0x3: fucomip(); 329 default: fild(); 330 } 331 0x6: decode MODRM_MOD { 332 0x3: fcomip(); 333 default: fbstp(); 334 } 335 0x7: decode MODRM_MOD { 336 0x3: Inst::UD2(); 337 default: fistp(); 338 } 339 } 340 } 341} 342