x87.isa revision 9371:7c1484cc9b10
1// Copyright (c) 2007 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// Redistribution and use in source and binary forms, with or without 14// modification, are permitted provided that the following conditions are 15// met: redistributions of source code must retain the above copyright 16// notice, this list of conditions and the following disclaimer; 17// redistributions in binary form must reproduce the above copyright 18// notice, this list of conditions and the following disclaimer in the 19// documentation and/or other materials provided with the distribution; 20// neither the name of the copyright holders nor the names of its 21// contributors may be used to endorse or promote products derived from 22// this software without specific prior written permission. 23// 24// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35// 36// Authors: Gabe Black 37 38format WarnUnimpl { 39 0x1B: decode OPCODE_OP_BOTTOM3 { 40 //0x0: esc0(); 41 0x0: decode MODRM_REG { 42 0x0: fadd(); 43 0x1: fmul(); 44 0x2: fcom(); 45 0x3: fcomp(); 46 0x4: fsub(); 47 0x5: fsubr(); 48 0x6: fdiv(); 49 0x7: fdivr(); 50 } 51 //0x1: esc1(); 52 0x1: decode MODRM_REG { 53 0x0: fld(); 54 0x1: decode MODRM_MOD { 55 0x3: fxch(); 56 default: Inst::UD2(); 57 } 58 0x2: decode MODRM_MOD { 59 0x3: decode MODRM_RM { 60 0x0: fnop(); 61 default: Inst::UD2(); 62 } 63 default: fst(); 64 } 65 0x3: decode MODRM_MOD { 66 0x3: Inst::UD2(); 67 default: fstp(); 68 } 69 0x4: decode MODRM_MOD { 70 0x3: decode MODRM_RM { 71 0x0: fchs(); 72 0x1: fabs(); 73 0x4: ftst(); 74 0x5: fxam(); 75 default: Inst::UD2(); 76 } 77 default: fldenv(); 78 } 79 0x5: decode MODRM_MOD { 80 0x3: decode MODRM_RM { 81 0x0: fld1(); 82 0x1: fldl2t(); 83 0x2: fldl2e(); 84 0x3: fldpi(); 85 0x4: fldlg2(); 86 0x5: fldln2(); 87 0x6: fldz(); 88 } 89 default: fldcw_Mw(); 90 } 91 0x6: decode MODRM_MOD { 92 0x3: decode MODRM_RM { 93 0x0: f2xm1(); 94 0x1: fyl2x(); 95 0x2: fptan(); 96 0x3: fpatan(); 97 0x4: fxtract(); 98 0x5: fprem1(); 99 0x6: fdecstp(); 100 0x7: fincstp(); 101 } 102 default: fnstenv(); 103 } 104 0x7: decode MODRM_MOD { 105 0x3: decode MODRM_RM { 106 0x0: fprem(); 107 0x1: fyl2xp1(); 108 0x2: fsqrt(); 109 0x3: Inst::FSINCOS(); 110 0x4: frndint(); 111 0x5: fscale(); 112 0x6: fsin(); 113 0x7: fcos(); 114 } 115 default: fnstcw_Mw(); 116 } 117 } 118 //0x2: esc2(); 119 0x2: decode MODRM_REG { 120 0x0: decode MODRM_MOD { 121 0x3: fcmovb(); 122 default: fiadd(); 123 } 124 0x1: decode MODRM_MOD { 125 0x3: fcmove(); 126 default: fimul(); 127 } 128 0x2: decode MODRM_MOD { 129 0x3: fcmovbe(); 130 default: ficom(); 131 } 132 0x3: decode MODRM_MOD { 133 0x3: fcmovu(); 134 default: ficomp(); 135 } 136 0x4: decode MODRM_MOD { 137 0x3: Inst::UD2(); 138 default: fisub(); 139 } 140 0x5: decode MODRM_MOD { 141 0x3: decode MODRM_RM { 142 0x1: fucompp(); 143 default: Inst::UD2(); 144 } 145 default: fisubr(); 146 } 147 0x6: decode MODRM_MOD { 148 0x3: Inst::UD2(); 149 default: fidiv(); 150 } 151 0x7: decode MODRM_MOD { 152 0x3: Inst::UD2(); 153 default: fidivr(); 154 } 155 } 156 //0x3: esc3(); 157 0x3: decode MODRM_REG { 158 0x0: decode MODRM_MOD { 159 0x3: fcmovnb(); 160 default: fild(); 161 } 162 0x1: decode MODRM_MOD { 163 0x3: fcmovne(); 164 default: fisttp(); 165 } 166 0x2: decode MODRM_MOD { 167 0x3: fcmovnbe(); 168 default: fist(); 169 } 170 0x3: decode MODRM_MOD { 171 0x3: fcmovnu(); 172 default: fistp(); 173 } 174 0x4: decode MODRM_MOD { 175 0x3: decode MODRM_RM { 176 0x2: fnclex(); 177 0x3: fninit(); 178 default: Inst::UD2(); 179 } 180 default: Inst::UD2(); 181 } 182 0x5: decode MODRM_MOD { 183 0x3: fucomi(); 184 default: fld(); 185 } 186 0x6: decode MODRM_MOD { 187 0x3: fcomi(); 188 default: Inst::UD2(); 189 } 190 0x7: decode MODRM_MOD { 191 0x3: Inst::UD2(); 192 default: fstp(); 193 } 194 } 195 //0x4: esc4(); 196 0x4: decode MODRM_REG { 197 0x0: fadd(); 198 0x1: fmul(); 199 0x2: decode MODRM_MOD { 200 0x3: Inst::UD2(); 201 default: fcom(); 202 } 203 0x3: decode MODRM_MOD { 204 0x3: Inst::UD2(); 205 default: fcomp(); 206 } 207 0x4: decode MODRM_MOD { 208 0x3: fsubr(); 209 default: fsub(); 210 } 211 0x5: decode MODRM_MOD { 212 0x3: fsub(); 213 default: fsubr(); 214 } 215 0x6: decode MODRM_MOD { 216 0x3: fdivr(); 217 default: fdiv(); 218 } 219 0x7: decode MODRM_MOD { 220 0x3: fdiv(); 221 default: fdivr(); 222 } 223 } 224 //0x5: esc5(); 225 0x5: decode MODRM_REG { 226 0x0: decode MODRM_MOD { 227 0x3: ffree(); 228 default: Inst::FLD(Mq); 229 } 230 0x1: decode MODRM_MOD { 231 0x3: Inst::UD2(); 232 default: fisttp(); 233 } 234 0x2: Inst::FST(Eq); 235 0x3: Inst::FSTP(Eq); 236 0x4: decode MODRM_MOD { 237 0x3: fucom(); 238 default: frstor(); 239 } 240 0x5: decode MODRM_MOD { 241 0x3: fucomp(); 242 default: Inst::UD2(); 243 } 244 0x6: decode MODRM_MOD { 245 0x3: Inst::UD2(); 246 default: fnsave(); 247 } 248 0x7: decode MODRM_MOD { 249 0x3: Inst::UD2(); 250 default: fnstsw(); 251 } 252 } 253 //0x6: esc6(); 254 0x6: decode MODRM_REG { 255 0x0: decode MODRM_MOD { 256 0x3: faddp(); 257 default: fiadd(); 258 } 259 0x1: decode MODRM_MOD { 260 0x3: fmulp(); 261 default: fimul(); 262 } 263 0x2: decode MODRM_MOD { 264 0x3: Inst::UD2(); 265 default: ficom(); 266 } 267 0x3: decode MODRM_MOD { 268 0x3: decode MODRM_RM { 269 0x1: fcompp(); 270 default: Inst::UD2(); 271 } 272 default: ficomp(); 273 } 274 0x4: decode MODRM_MOD { 275 0x3: fsubrp(); 276 default: fisub(); 277 } 278 0x5: decode MODRM_MOD { 279 0x3: fsubp(); 280 default: fisubr(); 281 } 282 0x6: decode MODRM_MOD { 283 0x3: fdivrp(); 284 default: fidiv(); 285 } 286 0x7: decode MODRM_MOD { 287 0x3: fdivp(); 288 default: fidivr(); 289 } 290 } 291 //0x7: esc7(); 292 0x7: decode MODRM_REG { 293 0x0: decode MODRM_MOD { 294 // The ffreep instruction isn't entirely real. It should work 295 // the same as ffree but then also pop the register stack. 296 0x3: ffreep(); 297 default: fild(); 298 } 299 0x1: decode MODRM_MOD { 300 0x3: Inst::UD2(); 301 default: fisttp(); 302 } 303 0x2: decode MODRM_MOD { 304 0x3: Inst::UD2(); 305 default: fist(); 306 } 307 0x3: decode MODRM_MOD { 308 0x3: Inst::UD2(); 309 default: fistp(); 310 } 311 0x4: decode MODRM_MOD { 312 0x3: decode MODRM_RM { 313 0x0: fnstsw(); 314 default: Inst::UD2(); 315 } 316 default: fbld(); 317 } 318 0x5: decode MODRM_MOD { 319 0x3: fucomip(); 320 default: fild(); 321 } 322 0x6: decode MODRM_MOD { 323 0x3: fcomip(); 324 default: fbstp(); 325 } 326 0x7: decode MODRM_MOD { 327 0x3: Inst::UD2(); 328 default: fistp(); 329 } 330 } 331 } 332} 333