decoder.isa revision 3982:c3517459caed
1// Copyright (c) 2006-2007 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright 9// notice, this list of conditions and the following disclaimer in the 10// documentation and/or other materials provided with the distribution; 11// neither the name of the copyright holders nor the names of its 12// contributors may be used to endorse or promote products derived from 13// this software without specific prior written permission. 14// 15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26// 27// Authors: Ali Saidi 28// Gabe Black 29// Steve Reinhardt 30 31//////////////////////////////////////////////////////////////////// 32// 33// The actual decoder specification 34// 35 36decode OP default Unknown::unknown() 37{ 38 0x0: decode OP2 39 { 40 //Throw an illegal instruction acception 41 0x0: Trap::illtrap({{fault = new IllegalInstruction;}}); 42 format BranchN 43 { 44 //bpcc 45 0x1: decode COND2 46 { 47 //Branch Always 48 0x8: decode A 49 { 50 0x0: bpa(19, {{ 51 NNPC = xc->readPC() + disp; 52 }}); 53 0x1: bpa(19, {{ 54 NPC = xc->readPC() + disp; 55 NNPC = NPC + 4; 56 }}, ',a'); 57 } 58 //Branch Never 59 0x0: decode A 60 { 61 0x0: bpn(19, {{ 62 NNPC = NNPC;//Don't do anything 63 }}); 64 0x1: bpn(19, {{ 65 NPC = xc->readNextPC() + 4; 66 NNPC = NPC + 4; 67 }}, ',a'); 68 } 69 default: decode BPCC 70 { 71 0x0: bpcci(19, {{ 72 if(passesCondition(Ccr<3:0>, COND2)) 73 NNPC = xc->readPC() + disp; 74 else 75 handle_annul 76 }}); 77 0x2: bpccx(19, {{ 78 if(passesCondition(Ccr<7:4>, COND2)) 79 { 80 //warn("Took branch!\n"); 81 NNPC = xc->readPC() + disp; 82 } 83 else 84 { 85 //warn("Didn't take branch!\n"); 86 handle_annul 87 } 88 }}); 89 } 90 } 91 //bicc 92 0x2: decode COND2 93 { 94 //Branch Always 95 0x8: decode A 96 { 97 0x0: ba(22, {{ 98 NNPC = xc->readPC() + disp; 99 }}); 100 0x1: ba(22, {{ 101 NPC = xc->readPC() + disp; 102 NNPC = NPC + 4; 103 }}, ',a'); 104 } 105 //Branch Never 106 0x0: decode A 107 { 108 0x0: bn(22, {{ 109 NNPC = NNPC;//Don't do anything 110 }}); 111 0x1: bn(22, {{ 112 NPC = xc->readNextPC() + 4; 113 NNPC = NPC + 4; 114 }}, ',a'); 115 } 116 default: bicc(22, {{ 117 if(passesCondition(Ccr<3:0>, COND2)) 118 NNPC = xc->readPC() + disp; 119 else 120 handle_annul 121 }}); 122 } 123 } 124 0x3: decode RCOND2 125 { 126 format BranchSplit 127 { 128 0x1: bpreq({{ 129 if(Rs1.sdw == 0) 130 NNPC = xc->readPC() + disp; 131 else 132 handle_annul 133 }}); 134 0x2: bprle({{ 135 if(Rs1.sdw <= 0) 136 NNPC = xc->readPC() + disp; 137 else 138 handle_annul 139 }}); 140 0x3: bprl({{ 141 if(Rs1.sdw < 0) 142 NNPC = xc->readPC() + disp; 143 else 144 handle_annul 145 }}); 146 0x5: bprne({{ 147 if(Rs1.sdw != 0) 148 NNPC = xc->readPC() + disp; 149 else 150 handle_annul 151 }}); 152 0x6: bprg({{ 153 if(Rs1.sdw > 0) 154 NNPC = xc->readPC() + disp; 155 else 156 handle_annul 157 }}); 158 0x7: bprge({{ 159 if(Rs1.sdw >= 0) 160 NNPC = xc->readPC() + disp; 161 else 162 handle_annul 163 }}); 164 } 165 } 166 //SETHI (or NOP if rd == 0 and imm == 0) 167 0x4: SetHi::sethi({{Rd.udw = imm;}}); 168 0x5: FailUnimpl::fbpfcc(); 169 0x6: FailUnimpl::fbfcc(); 170 } 171 0x1: BranchN::call(30, {{ 172 if (Pstate<3:>) 173 R15 = (xc->readPC())<31:0>; 174 else 175 R15 = xc->readPC(); 176 NNPC = R15 + disp; 177 }}); 178 0x2: decode OP3 { 179 format IntOp { 180 0x00: add({{Rd = Rs1.sdw + Rs2_or_imm13;}}); 181 0x01: and({{Rd = Rs1.sdw & Rs2_or_imm13;}}); 182 0x02: or({{Rd = Rs1.sdw | Rs2_or_imm13;}}); 183 0x03: xor({{Rd = Rs1.sdw ^ Rs2_or_imm13;}}); 184 0x04: sub({{Rd = Rs1.sdw - Rs2_or_imm13;}}); 185 0x05: andn({{Rd = Rs1.sdw & ~Rs2_or_imm13;}}); 186 0x06: orn({{Rd = Rs1.sdw | ~Rs2_or_imm13;}}); 187 0x07: xnor({{Rd = ~(Rs1.sdw ^ Rs2_or_imm13);}}); 188 0x08: addc({{Rd = Rs1.sdw + Rs2_or_imm13 + Ccr<0:0>;}}); 189 0x09: mulx({{Rd = Rs1.sdw * Rs2_or_imm13;}}); 190 0x0A: umul({{ 191 Rd = Rs1.udw<31:0> * Rs2_or_imm13<31:0>; 192 Y = Rd<63:32>; 193 }}); 194 0x0B: smul({{ 195 Rd.sdw = sext<32>(Rs1.sdw<31:0>) * sext<32>(Rs2_or_imm13<31:0>); 196 Y = Rd.sdw<63:32>; 197 }}); 198 0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 - Ccr<0:0>}}); 199 0x0D: udivx({{ 200 if(Rs2_or_imm13 == 0) fault = new DivisionByZero; 201 else Rd.udw = Rs1.udw / Rs2_or_imm13; 202 }}); 203 0x0E: udiv({{ 204 if(Rs2_or_imm13 == 0) fault = new DivisionByZero; 205 else 206 { 207 Rd.udw = ((Y << 32) | Rs1.udw<31:0>) / Rs2_or_imm13; 208 if(Rd.udw >> 32 != 0) 209 Rd.udw = 0xFFFFFFFF; 210 } 211 }}); 212 0x0F: sdiv({{ 213 if(Rs2_or_imm13.sdw == 0) 214 fault = new DivisionByZero; 215 else 216 { 217 Rd.udw = ((int64_t)((Y << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw; 218 if((int64_t)Rd.udw >= std::numeric_limits<int32_t>::max()) 219 Rd.udw = 0x7FFFFFFF; 220 else if((int64_t)Rd.udw <= std::numeric_limits<int32_t>::min()) 221 Rd.udw = ULL(0xFFFFFFFF80000000); 222 } 223 }}); 224 } 225 format IntOpCc { 226 0x10: addcc({{ 227 int64_t resTemp, val2 = Rs2_or_imm13; 228 Rd = resTemp = Rs1 + val2;}}, 229 {{(Rs1<31:0> + val2<31:0>)<32:>}}, 230 {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}}, 231 {{(Rs1<63:1> + val2<63:1> + (Rs1 & val2)<0:>)<63:>}}, 232 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}} 233 ); 234 0x11: IntOpCcRes::andcc({{Rd = Rs1 & Rs2_or_imm13;}}); 235 0x12: IntOpCcRes::orcc({{Rd = Rs1 | Rs2_or_imm13;}}); 236 0x13: IntOpCcRes::xorcc({{Rd = Rs1 ^ Rs2_or_imm13;}}); 237 0x14: subcc({{ 238 int64_t val2 = Rs2_or_imm13; 239 Rd = Rs1 - val2;}}, 240 {{(~(Rs1<31:0> + (~val2)<31:0> + 1))<32:>}}, 241 {{(Rs1<31:> != val2<31:>) && (Rs1<31:> != Rd<31:>)}}, 242 {{(~(Rs1<63:1> + (~val2)<63:1> + 243 (Rs1 | ~val2)<0:>))<63:>}}, 244 {{Rs1<63:> != val2<63:> && Rs1<63:> != Rd<63:>}} 245 ); 246 0x15: IntOpCcRes::andncc({{Rd = Rs1 & ~Rs2_or_imm13;}}); 247 0x16: IntOpCcRes::orncc({{Rd = Rs1 | ~Rs2_or_imm13;}}); 248 0x17: IntOpCcRes::xnorcc({{Rd = ~(Rs1 ^ Rs2_or_imm13);}}); 249 0x18: addccc({{ 250 int64_t resTemp, val2 = Rs2_or_imm13; 251 int64_t carryin = Ccr<0:0>; 252 Rd = resTemp = Rs1 + val2 + carryin;}}, 253 {{(Rs1<31:0> + val2<31:0> + carryin)<32:>}}, 254 {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}}, 255 {{((Rs1 & val2) | (~resTemp & (Rs1 | val2)))<63:>}}, 256 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}} 257 ); 258 0x1A: IntOpCcRes::umulcc({{ 259 uint64_t resTemp; 260 Rd = resTemp = Rs1.udw<31:0> * Rs2_or_imm13.udw<31:0>; 261 Y = resTemp<63:32>;}}); 262 0x1B: IntOpCcRes::smulcc({{ 263 int64_t resTemp; 264 Rd = resTemp = sext<32>(Rs1.sdw<31:0>) * sext<32>(Rs2_or_imm13<31:0>); 265 Y = resTemp<63:32>;}}); 266 0x1C: subccc({{ 267 int64_t resTemp, val2 = Rs2_or_imm13; 268 int64_t carryin = Ccr<0:0>; 269 Rd = resTemp = Rs1 + ~val2 + 1 - carryin;}}, 270 {{((~Rs1 & val2) | (resTemp & (~Rs1 | val2)))<31:>}}, 271 {{Rs1<31:> != val2<31:> && Rs1<31:> != resTemp<31:>}}, 272 {{((~Rs1 & val2) | (resTemp & (~Rs1 | val2)))<63:>}}, 273 {{Rs1<63:> != val2<63:> && Rs1<63:> != resTemp<63:>}} 274 ); 275 0x1D: IntOpCcRes::udivxcc({{ 276 if(Rs2_or_imm13.udw == 0) fault = new DivisionByZero; 277 else Rd = Rs1.udw / Rs2_or_imm13.udw;}}); 278 0x1E: udivcc({{ 279 uint32_t resTemp, val2 = Rs2_or_imm13.udw; 280 int32_t overflow = 0; 281 if(val2 == 0) fault = new DivisionByZero; 282 else 283 { 284 resTemp = (uint64_t)((Y << 32) | Rs1.udw<31:0>) / val2; 285 overflow = (resTemp<63:32> != 0); 286 if(overflow) Rd = resTemp = 0xFFFFFFFF; 287 else Rd = resTemp; 288 } }}, 289 {{0}}, 290 {{overflow}}, 291 {{0}}, 292 {{0}} 293 ); 294 0x1F: sdivcc({{ 295 int64_t val2 = Rs2_or_imm13.sdw<31:0>; 296 bool overflow = false, underflow = false; 297 if(val2 == 0) fault = new DivisionByZero; 298 else 299 { 300 Rd = (int64_t)((Y << 32) | Rs1.sdw<31:0>) / val2; 301 overflow = ((int64_t)Rd >= std::numeric_limits<int32_t>::max()); 302 underflow = ((int64_t)Rd <= std::numeric_limits<int32_t>::min()); 303 if(overflow) Rd = 0x7FFFFFFF; 304 else if(underflow) Rd = ULL(0xFFFFFFFF80000000); 305 } }}, 306 {{0}}, 307 {{overflow || underflow}}, 308 {{0}}, 309 {{0}} 310 ); 311 0x20: taddcc({{ 312 int64_t resTemp, val2 = Rs2_or_imm13; 313 Rd = resTemp = Rs1 + val2; 314 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}}, 315 {{((Rs1<31:0> + val2<31:0>)<32:0>)}}, 316 {{overflow}}, 317 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}}, 318 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}} 319 ); 320 0x21: tsubcc({{ 321 int64_t resTemp, val2 = Rs2_or_imm13; 322 Rd = resTemp = Rs1 + val2; 323 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}}, 324 {{(Rs1<31:0> + val2<31:0>)<32:0>}}, 325 {{overflow}}, 326 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}}, 327 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}} 328 ); 329 0x22: taddcctv({{ 330 int64_t val2 = Rs2_or_imm13; 331 Rd = Rs1 + val2; 332 int32_t overflow = Rs1<1:0> || val2<1:0> || 333 (Rs1<31:> == val2<31:> && val2<31:> != Rd<31:>); 334 if(overflow) fault = new TagOverflow;}}, 335 {{((Rs1<31:0> + val2<31:0>)<32:0>)}}, 336 {{overflow}}, 337 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}}, 338 {{Rs1<63:> == val2<63:> && val2<63:> != Rd<63:>}} 339 ); 340 0x23: tsubcctv({{ 341 int64_t resTemp, val2 = Rs2_or_imm13; 342 Rd = resTemp = Rs1 + val2; 343 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>); 344 if(overflow) fault = new TagOverflow;}}, 345 {{((Rs1<31:0> + val2<31:0>)<32:0>)}}, 346 {{overflow}}, 347 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}}, 348 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}} 349 ); 350 0x24: mulscc({{ 351 int64_t resTemp, multiplicand = Rs2_or_imm13; 352 int32_t multiplier = Rs1<31:0>; 353 int32_t savedLSB = Rs1<0:>; 354 multiplier = multiplier<31:1> | 355 ((Ccr<3:3> ^ Ccr<1:1>) << 32); 356 if(!Y<0:>) 357 multiplicand = 0; 358 Rd = resTemp = multiplicand + multiplier; 359 Y = Y<31:1> | (savedLSB << 31);}}, 360 {{((multiplicand<31:0> + multiplier<31:0>)<32:0>)}}, 361 {{multiplicand<31:> == multiplier<31:> && multiplier<31:> != resTemp<31:>}}, 362 {{((multiplicand >> 1) + (multiplier >> 1) + (multiplicand & multiplier & 0x1))<63:>}}, 363 {{multiplicand<63:> == multiplier<63:> && multiplier<63:> != resTemp<63:>}} 364 ); 365 } 366 format IntOp 367 { 368 0x25: decode X { 369 0x0: sll({{Rd = Rs1 << (I ? SHCNT32 : Rs2<4:0>);}}); 370 0x1: sllx({{Rd = Rs1 << (I ? SHCNT64 : Rs2<5:0>);}}); 371 } 372 0x26: decode X { 373 0x0: srl({{Rd = Rs1.uw >> (I ? SHCNT32 : Rs2<4:0>);}}); 374 0x1: srlx({{Rd = Rs1.udw >> (I ? SHCNT64 : Rs2<5:0>);}}); 375 } 376 0x27: decode X { 377 0x0: sra({{Rd = Rs1.sw >> (I ? SHCNT32 : Rs2<4:0>);}}); 378 0x1: srax({{Rd = Rs1.sdw >> (I ? SHCNT64 : Rs2<5:0>);}}); 379 } 380 0x28: decode RS1 { 381 0x00: NoPriv::rdy({{Rd = Y<31:0>;}}); 382 //1 should cause an illegal instruction exception 383 0x02: NoPriv::rdccr({{Rd = Ccr;}}); 384 0x03: NoPriv::rdasi({{Rd = Asi;}}); 385 0x04: PrivCheck::rdtick({{Rd = Tick;}}, {{Tick<63:>}}); 386 0x05: NoPriv::rdpc({{ 387 if(Pstate<3:>) 388 Rd = (xc->readPC())<31:0>; 389 else 390 Rd = xc->readPC();}}); 391 0x06: NoPriv::rdfprs({{ 392 //Wait for all fpops to finish. 393 Rd = Fprs; 394 }}); 395 //7-14 should cause an illegal instruction exception 396 0x0F: decode I { 397 0x0: Nop::stbar({{/*stuff*/}}); 398 0x1: Nop::membar({{/*stuff*/}}); 399 } 400 0x10: Priv::rdpcr({{Rd = Pcr;}}); 401 0x11: PrivCheck::rdpic({{Rd = Pic;}}, {{Pcr<0:>}}); 402 //0x12 should cause an illegal instruction exception 403 0x13: NoPriv::rdgsr({{ 404 if(Fprs<2:> == 0 || Pstate<4:> == 0) 405 Rd = Gsr; 406 else 407 fault = new FpDisabled; 408 }}); 409 //0x14-0x15 should cause an illegal instruction exception 410 0x16: Priv::rdsoftint({{Rd = Softint;}}); 411 0x17: Priv::rdtick_cmpr({{Rd = TickCmpr;}}); 412 0x18: PrivCheck::rdstick({{Rd = Stick}}, {{Stick<63:>}}); 413 0x19: Priv::rdstick_cmpr({{Rd = StickCmpr;}}); 414 0x1A: Priv::rdstrand_sts_reg({{ 415 if(Pstate<2:> && !Hpstate<2:>) 416 Rd = StrandStsReg<0:>; 417 else 418 Rd = StrandStsReg; 419 }}); 420 //0x1A is supposed to be reserved, but it reads the strand 421 //status register. 422 //0x1B-0x1F should cause an illegal instruction exception 423 } 424 0x29: decode RS1 { 425 0x00: HPriv::rdhprhpstate({{Rd = Hpstate;}}); 426 0x01: HPriv::rdhprhtstate({{ 427 if(Tl == 0) 428 return new IllegalInstruction; 429 Rd = Htstate; 430 }}); 431 //0x02 should cause an illegal instruction exception 432 0x03: HPriv::rdhprhintp({{Rd = Hintp;}}); 433 //0x04 should cause an illegal instruction exception 434 0x05: HPriv::rdhprhtba({{Rd = Htba;}}); 435 0x06: HPriv::rdhprhver({{Rd = Hver;}}); 436 //0x07-0x1E should cause an illegal instruction exception 437 0x1F: HPriv::rdhprhstick_cmpr({{Rd = HstickCmpr;}}); 438 } 439 0x2A: decode RS1 { 440 0x00: Priv::rdprtpc({{ 441 if(Tl == 0) 442 return new IllegalInstruction; 443 Rd = Tpc; 444 }}); 445 0x01: Priv::rdprtnpc({{ 446 if(Tl == 0) 447 return new IllegalInstruction; 448 Rd = Tnpc; 449 }}); 450 0x02: Priv::rdprtstate({{ 451 if(Tl == 0) 452 return new IllegalInstruction; 453 Rd = Tstate; 454 }}); 455 0x03: Priv::rdprtt({{ 456 if(Tl == 0) 457 return new IllegalInstruction; 458 Rd = Tt; 459 }}); 460 0x04: Priv::rdprtick({{Rd = Tick;}}); 461 0x05: Priv::rdprtba({{Rd = Tba;}}); 462 0x06: Priv::rdprpstate({{Rd = Pstate;}}); 463 0x07: Priv::rdprtl({{Rd = Tl;}}); 464 0x08: Priv::rdprpil({{Rd = Pil;}}); 465 0x09: Priv::rdprcwp({{Rd = Cwp;}}); 466 0x0A: Priv::rdprcansave({{Rd = Cansave;}}); 467 0x0B: Priv::rdprcanrestore({{Rd = Canrestore;}}); 468 0x0C: Priv::rdprcleanwin({{Rd = Cleanwin;}}); 469 0x0D: Priv::rdprotherwin({{Rd = Otherwin;}}); 470 0x0E: Priv::rdprwstate({{Rd = Wstate;}}); 471 //0x0F should cause an illegal instruction exception 472 0x10: Priv::rdprgl({{Rd = Gl;}}); 473 //0x11-0x1F should cause an illegal instruction exception 474 } 475 0x2B: BasicOperate::flushw({{ 476 if(NWindows - 2 - Cansave != 0) 477 { 478 if(Otherwin) 479 fault = new SpillNOther(4*Wstate<5:3>); 480 else 481 fault = new SpillNNormal(4*Wstate<2:0>); 482 } 483 }}); 484 0x2C: decode MOVCC3 485 { 486 0x0: Trap::movccfcc({{fault = new FpDisabled;}}); 487 0x1: decode CC 488 { 489 0x0: movcci({{ 490 if(passesCondition(Ccr<3:0>, COND4)) 491 Rd = Rs2_or_imm11; 492 else 493 Rd = Rd; 494 }}); 495 0x2: movccx({{ 496 if(passesCondition(Ccr<7:4>, COND4)) 497 Rd = Rs2_or_imm11; 498 else 499 Rd = Rd; 500 }}); 501 } 502 } 503 0x2D: sdivx({{ 504 if(Rs2_or_imm13.sdw == 0) fault = new DivisionByZero; 505 else Rd.sdw = Rs1.sdw / Rs2_or_imm13.sdw; 506 }}); 507 0x2E: Trap::popc({{fault = new IllegalInstruction;}}); 508 0x2F: decode RCOND3 509 { 510 0x1: movreq({{Rd = (Rs1.sdw == 0) ? Rs2_or_imm10 : Rd;}}); 511 0x2: movrle({{Rd = (Rs1.sdw <= 0) ? Rs2_or_imm10 : Rd;}}); 512 0x3: movrl({{Rd = (Rs1.sdw < 0) ? Rs2_or_imm10 : Rd;}}); 513 0x5: movrne({{Rd = (Rs1.sdw != 0) ? Rs2_or_imm10 : Rd;}}); 514 0x6: movrg({{Rd = (Rs1.sdw > 0) ? Rs2_or_imm10 : Rd;}}); 515 0x7: movrge({{Rd = (Rs1.sdw >= 0) ? Rs2_or_imm10 : Rd;}}); 516 } 517 0x30: decode RD { 518 0x00: NoPriv::wry({{Y = (Rs1 ^ Rs2_or_imm13)<31:0>;}}); 519 //0x01 should cause an illegal instruction exception 520 0x02: NoPriv::wrccr({{Ccr = Rs1 ^ Rs2_or_imm13;}}); 521 0x03: NoPriv::wrasi({{Asi = Rs1 ^ Rs2_or_imm13;}}); 522 //0x04-0x05 should cause an illegal instruction exception 523 0x06: NoPriv::wrfprs({{Fprs = Rs1 ^ Rs2_or_imm13;}}); 524 //0x07-0x0E should cause an illegal instruction exception 525 0x0F: Trap::softreset({{fault = new SoftwareInitiatedReset;}}); 526 0x10: Priv::wrpcr({{Pcr = Rs1 ^ Rs2_or_imm13;}}); 527 0x11: PrivCheck::wrpic({{Pic = Rs1 ^ Rs2_or_imm13;}}, {{Pcr<0:>}}); 528 //0x12 should cause an illegal instruction exception 529 0x13: NoPriv::wrgsr({{ 530 if(Fprs<2:> == 0 || Pstate<4:> == 0) 531 return new FpDisabled; 532 Gsr = Rs1 ^ Rs2_or_imm13; 533 }}); 534 0x14: Priv::wrsoftint_set({{SoftintSet = Rs1 ^ Rs2_or_imm13;}}); 535 0x15: Priv::wrsoftint_clr({{SoftintClr = Rs1 ^ Rs2_or_imm13;}}); 536 0x16: Priv::wrsoftint({{Softint = Rs1 ^ Rs2_or_imm13;}}); 537 0x17: Priv::wrtick_cmpr({{TickCmpr = Rs1 ^ Rs2_or_imm13;}}); 538 0x18: NoPriv::wrstick({{ 539 if(!Hpstate<2:>) 540 return new IllegalInstruction; 541 Stick = Rs1 ^ Rs2_or_imm13; 542 }}); 543 0x19: Priv::wrstick_cmpr({{StickCmpr = Rs1 ^ Rs2_or_imm13;}}); 544 0x1A: Priv::wrstrand_sts_reg({{ 545 if(Pstate<2:> && !Hpstate<2:>) 546 StrandStsReg = StrandStsReg<63:1> | 547 (Rs1 ^ Rs2_or_imm13)<0:>; 548 else 549 StrandStsReg = Rs1 ^ Rs2_or_imm13; 550 }}); 551 //0x1A is supposed to be reserved, but it writes the strand 552 //status register. 553 //0x1B-0x1F should cause an illegal instruction exception 554 } 555 0x31: decode FCN { 556 0x0: Priv::saved({{ 557 assert(Cansave < NWindows - 2); 558 assert(Otherwin || Canrestore); 559 Cansave = Cansave + 1; 560 if(Otherwin == 0) 561 Canrestore = Canrestore - 1; 562 else 563 Otherwin = Otherwin - 1; 564 }}); 565 0x1: Priv::restored({{ 566 assert(Cansave || Otherwin); 567 assert(Canrestore < NWindows - 2); 568 Canrestore = Canrestore + 1; 569 if(Otherwin == 0) 570 Cansave = Cansave - 1; 571 else 572 Otherwin = Otherwin - 1; 573 574 if(Cleanwin < NWindows - 1) 575 Cleanwin = Cleanwin + 1; 576 }}); 577 } 578 0x32: decode RD { 579 0x00: Priv::wrprtpc({{ 580 if(Tl == 0) 581 return new IllegalInstruction; 582 else 583 Tpc = Rs1 ^ Rs2_or_imm13; 584 }}); 585 0x01: Priv::wrprtnpc({{ 586 if(Tl == 0) 587 return new IllegalInstruction; 588 else 589 Tnpc = Rs1 ^ Rs2_or_imm13; 590 }}); 591 0x02: Priv::wrprtstate({{ 592 if(Tl == 0) 593 return new IllegalInstruction; 594 else 595 Tstate = Rs1 ^ Rs2_or_imm13; 596 }}); 597 0x03: Priv::wrprtt({{ 598 if(Tl == 0) 599 return new IllegalInstruction; 600 else 601 Tt = Rs1 ^ Rs2_or_imm13; 602 }}); 603 0x04: HPriv::wrprtick({{Tick = Rs1 ^ Rs2_or_imm13;}}); 604 0x05: Priv::wrprtba({{Tba = Rs1 ^ Rs2_or_imm13;}}); 605 0x06: Priv::wrprpstate({{Pstate = Rs1 ^ Rs2_or_imm13;}}); 606 0x07: Priv::wrprtl({{ 607 if(Pstate<2:> && !Hpstate<2:>) 608 Tl = std::min<uint64_t>(Rs1 ^ Rs2_or_imm13, MaxPTL); 609 else 610 Tl = std::min<uint64_t>(Rs1 ^ Rs2_or_imm13, MaxTL); 611 }}); 612 0x08: Priv::wrprpil({{Pil = Rs1 ^ Rs2_or_imm13;}}); 613 0x09: Priv::wrprcwp({{Cwp = Rs1 ^ Rs2_or_imm13;}}); 614 0x0A: Priv::wrprcansave({{Cansave = Rs1 ^ Rs2_or_imm13;}}); 615 0x0B: Priv::wrprcanrestore({{Canrestore = Rs1 ^ Rs2_or_imm13;}}); 616 0x0C: Priv::wrprcleanwin({{Cleanwin = Rs1 ^ Rs2_or_imm13;}}); 617 0x0D: Priv::wrprotherwin({{Otherwin = Rs1 ^ Rs2_or_imm13;}}); 618 0x0E: Priv::wrprwstate({{Wstate = Rs1 ^ Rs2_or_imm13;}}); 619 //0x0F should cause an illegal instruction exception 620 0x10: Priv::wrprgl({{ 621 if(Pstate<2:> && !Hpstate<2:>) 622 Gl = std::min<uint64_t>(Rs1 ^ Rs2_or_imm13, MaxPGL); 623 else 624 Gl = std::min<uint64_t>(Rs1 ^ Rs2_or_imm13, MaxGL); 625 }}); 626 //0x11-0x1F should cause an illegal instruction exception 627 } 628 0x33: decode RD { 629 0x00: HPriv::wrhprhpstate({{Hpstate = Rs1 ^ Rs2_or_imm13;}}); 630 0x01: HPriv::wrhprhtstate({{ 631 if(Tl == 0) 632 return new IllegalInstruction; 633 Htstate = Rs1 ^ Rs2_or_imm13; 634 }}); 635 //0x02 should cause an illegal instruction exception 636 0x03: HPriv::wrhprhintp({{Hintp = Rs1 ^ Rs2_or_imm13;}}); 637 //0x04 should cause an illegal instruction exception 638 0x05: HPriv::wrhprhtba({{Htba = Rs1 ^ Rs2_or_imm13;}}); 639 //0x06-0x01D should cause an illegal instruction exception 640 0x1F: HPriv::wrhprhstick_cmpr({{HstickCmpr = Rs1 ^ Rs2_or_imm13;}}); 641 } 642 0x34: decode OPF{ 643 format BasicOperate{ 644 0x01: fmovs({{ 645 Frds.uw = Frs2s.uw; 646 //fsr.ftt = fsr.cexc = 0 647 Fsr &= ~(7 << 14); 648 Fsr &= ~(0x1F); 649 }}); 650 0x02: fmovd({{ 651 Frd.udw = Frs2.udw; 652 //fsr.ftt = fsr.cexc = 0 653 Fsr &= ~(7 << 14); 654 Fsr &= ~(0x1F); 655 }}); 656 0x03: Trap::fmovq({{fault = new FpExceptionOther;}}); //unimp fpop 657 0x05: fnegs({{ 658 Frds.uw = Frs2s.uw ^ (1UL << 31); 659 //fsr.ftt = fsr.cexc = 0 660 Fsr &= ~(7 << 14); 661 Fsr &= ~(0x1F); 662 }}); 663 0x06: fnegd({{ 664 Frd.udw = Frs2.udw ^ (1ULL << 63); 665 //fsr.ftt = fsr.cexc = 0 666 Fsr &= ~(7 << 14); 667 Fsr &= ~(0x1F); 668 }}); 669 0x07: Trap::fnegq({{fault = new FpExceptionOther;}}); //fpop unimp 670 0x09: fabss({{ 671 Frds.uw = ((1UL << 31) - 1) & Frs2s.uw; 672 //fsr.ftt = fsr.cexc = 0 673 Fsr &= ~(7 << 14); 674 Fsr &= ~(0x1F); 675 }}); 676 0x0A: fabsd({{ 677 Frd.udw = ((1ULL << 63) - 1) & Frs2.udw; 678 //fsr.ftt = fsr.cexc = 0 679 Fsr &= ~(7 << 14); 680 Fsr &= ~(0x1F); 681 }}); 682 0x0B: Trap::fabsq({{fault = new FpExceptionOther;}}); //fpop unimp 683 0x29: fsqrts({{Frds.sf = std::sqrt(Frs2s.sf);}}); 684 0x2A: fsqrtd({{Frd.df = std::sqrt(Frs2.df);}}); 685 0x2B: Trap::fsqrtq({{fault = new FpExceptionOther;}}); //unimp fpop 686 0x41: fadds({{Frds.sf = Frs1s.sf + Frs2s.sf;}}); 687 0x42: faddd({{Frd.df = Frs1.df + Frs2.df;}}); 688 0x43: Trap::faddq({{fault = new FpExceptionOther;}}); //unimp fpop 689 0x45: fsubs({{Frds.sf = Frs1s.sf - Frs2s.sf;}}); 690 0x46: fsubd({{Frd.df = Frs1.df - Frs2.df;}}); 691 0x47: Trap::fsubq({{fault = new FpExceptionOther;}}); //unimp fpop 692 0x49: fmuls({{Frds.sf = Frs1s.sf * Frs2s.sf;}}); 693 0x4A: fmuld({{Frd.df = Frs1.df * Frs2.df;}}); 694 0x4B: Trap::fmulq({{fault = new FpExceptionOther;}}); //unimp fpop 695 0x4D: fdivs({{Frds.sf = Frs1s.sf / Frs2s.sf;}}); 696 0x4E: fdivd({{Frd.df = Frs1.df / Frs2.df;}}); 697 0x4F: Trap::fdivq({{fault = new FpExceptionOther;}}); //unimp fpop 698 0x69: fsmuld({{Frd.df = Frs1s.sf * Frs2s.sf;}}); 699 0x6E: Trap::fdmulq({{fault = new FpExceptionOther;}}); //unimp fpop 700 0x81: fstox({{ 701 Frd.df = (double)static_cast<int64_t>(Frs2s.sf); 702 }}); 703 0x82: fdtox({{ 704 Frd.df = (double)static_cast<int64_t>(Frs2.df); 705 }}); 706 0x83: Trap::fqtox({{fault = new FpExceptionOther;}}); //unimp fpop 707 0x84: fxtos({{ 708 Frds.sf = static_cast<float>((int64_t)Frs2.df); 709 }}); 710 0x88: fxtod({{ 711 Frd.df = static_cast<double>((int64_t)Frs2.df); 712 }}); 713 0x8C: Trap::fxtoq({{fault = new FpExceptionOther;}}); //unimp fpop 714 0xC4: fitos({{ 715 Frds.sf = static_cast<float>((int32_t)Frs2s.sf); 716 }}); 717 0xC6: fdtos({{Frds.sf = Frs2.df;}}); 718 0xC7: Trap::fqtos({{fault = new FpExceptionOther;}}); //unimp fpop 719 0xC8: fitod({{ 720 Frd.df = static_cast<double>((int32_t)Frs2s.sf); 721 }}); 722 0xC9: fstod({{Frd.df = Frs2s.sf;}}); 723 0xCB: Trap::fqtod({{fault = new FpExceptionOther;}}); // unimp fpop 724 0xCC: Trap::fitoq({{fault = new FpExceptionOther;}}); // unimp fpop 725 0xCD: Trap::fstoq({{fault = new FpExceptionOther;}}); // unimp fpop 726 0xCE: Trap::fdtoq({{fault = new FpExceptionOther;}}); // unimp fpop 727 0xD1: fstoi({{ 728 Frds.sf = (float)static_cast<int32_t>(Frs2s.sf); 729 }}); 730 0xD2: fdtoi({{ 731 Frds.sf = (float)static_cast<int32_t>(Frs2.df); 732 }}); 733 0xD3: Trap::fqtoi({{fault = new FpExceptionOther;}}); // unimp fpop 734 default: FailUnimpl::fpop1(); 735 } 736 } 737 0x35: Trap::fpop2({{fault = new FpDisabled;}}); 738 //This used to be just impdep1, but now it's a whole bunch 739 //of instructions 740 0x36: decode OPF{ 741 0x00: FailUnimpl::edge8(); 742 0x01: FailUnimpl::edge8n(); 743 0x02: FailUnimpl::edge8l(); 744 0x03: FailUnimpl::edge8ln(); 745 0x04: FailUnimpl::edge16(); 746 0x05: FailUnimpl::edge16n(); 747 0x06: FailUnimpl::edge16l(); 748 0x07: FailUnimpl::edge16ln(); 749 0x08: FailUnimpl::edge32(); 750 0x09: FailUnimpl::edge32n(); 751 0x0A: FailUnimpl::edge32l(); 752 0x0B: FailUnimpl::edge32ln(); 753 0x10: FailUnimpl::array8(); 754 0x12: FailUnimpl::array16(); 755 0x14: FailUnimpl::array32(); 756 0x18: BasicOperate::alignaddr({{ 757 uint64_t sum = Rs1 + Rs2; 758 Rd = sum & ~7; 759 Gsr = (Gsr & ~7) | (sum & 7); 760 }}); 761 0x19: FailUnimpl::bmask(); 762 0x1A: BasicOperate::alignaddresslittle({{ 763 uint64_t sum = Rs1 + Rs2; 764 Rd = sum & ~7; 765 Gsr = (Gsr & ~7) | ((~sum + 1) & 7); 766 }}); 767 0x20: FailUnimpl::fcmple16(); 768 0x22: FailUnimpl::fcmpne16(); 769 0x24: FailUnimpl::fcmple32(); 770 0x26: FailUnimpl::fcmpne32(); 771 0x28: FailUnimpl::fcmpgt16(); 772 0x2A: FailUnimpl::fcmpeq16(); 773 0x2C: FailUnimpl::fcmpgt32(); 774 0x2E: FailUnimpl::fcmpeq32(); 775 0x31: FailUnimpl::fmul8x16(); 776 0x33: FailUnimpl::fmul8x16au(); 777 0x35: FailUnimpl::fmul8x16al(); 778 0x36: FailUnimpl::fmul8sux16(); 779 0x37: FailUnimpl::fmul8ulx16(); 780 0x38: FailUnimpl::fmuld8sux16(); 781 0x39: FailUnimpl::fmuld8ulx16(); 782 0x3A: Trap::fpack32({{fault = new IllegalInstruction;}}); 783 0x3B: Trap::fpack16({{fault = new IllegalInstruction;}}); 784 0x3D: Trap::fpackfix({{fault = new IllegalInstruction;}}); 785 0x3E: Trap::pdist({{fault = new IllegalInstruction;}}); 786 0x48: BasicOperate::faligndata({{ 787 uint64_t msbX = Frs1.udw; 788 uint64_t lsbX = Frs2.udw; 789 //Some special cases need to be split out, first 790 //because they're the most likely to be used, and 791 //second because otherwise, we end up shifting by 792 //greater than the width of the type being shifted, 793 //namely 64, which produces undefined results according 794 //to the C standard. 795 switch(Gsr<2:0>) 796 { 797 case 0: 798 Frd.udw = msbX; 799 break; 800 case 8: 801 Frd.udw = lsbX; 802 break; 803 default: 804 uint64_t msbShift = Gsr<2:0> * 8; 805 uint64_t lsbShift = (8 - Gsr<2:0>) * 8; 806 uint64_t msbMask = ((uint64_t)(-1)) >> msbShift; 807 uint64_t lsbMask = ((uint64_t)(-1)) << lsbShift; 808 Frd.udw = ((msbX & msbMask) << msbShift) | 809 ((lsbX & lsbMask) >> lsbShift); 810 } 811 }}); 812 0x4B: Trap::fpmerge({{fault = new IllegalInstruction;}}); 813 0x4C: FailUnimpl::bshuffle(); 814 0x4D: FailUnimpl::fexpand(); 815 0x50: FailUnimpl::fpadd16(); 816 0x51: FailUnimpl::fpadd16s(); 817 0x52: FailUnimpl::fpadd32(); 818 0x53: FailUnimpl::fpadd32s(); 819 0x54: FailUnimpl::fpsub16(); 820 0x55: FailUnimpl::fpsub16s(); 821 0x56: FailUnimpl::fpsub32(); 822 0x57: FailUnimpl::fpsub32s(); 823 0x60: BasicOperate::fzero({{Frd.df = 0;}}); 824 0x61: BasicOperate::fzeros({{Frds.sf = 0;}}); 825 0x62: FailUnimpl::fnor(); 826 0x63: FailUnimpl::fnors(); 827 0x64: FailUnimpl::fandnot2(); 828 0x65: FailUnimpl::fandnot2s(); 829 0x66: BasicOperate::fnot2({{ 830 Frd.df = (double)(~((uint64_t)Frs2.df)); 831 }}); 832 0x67: BasicOperate::fnot2s({{ 833 Frds.sf = (float)(~((uint32_t)Frs2s.sf)); 834 }}); 835 0x68: FailUnimpl::fandnot1(); 836 0x69: FailUnimpl::fandnot1s(); 837 0x6A: BasicOperate::fnot1({{ 838 Frd.df = (double)(~((uint64_t)Frs1.df)); 839 }}); 840 0x6B: BasicOperate::fnot1s({{ 841 Frds.sf = (float)(~((uint32_t)Frs1s.sf)); 842 }}); 843 0x6C: FailUnimpl::fxor(); 844 0x6D: FailUnimpl::fxors(); 845 0x6E: FailUnimpl::fnand(); 846 0x6F: FailUnimpl::fnands(); 847 0x70: FailUnimpl::fand(); 848 0x71: FailUnimpl::fands(); 849 0x72: FailUnimpl::fxnor(); 850 0x73: FailUnimpl::fxnors(); 851 0x74: BasicOperate::fsrc1({{Frd.udw = Frs1.udw;}}); 852 0x75: BasicOperate::fsrc1s({{Frds.uw = Frs1s.uw;}}); 853 0x76: FailUnimpl::fornot2(); 854 0x77: FailUnimpl::fornot2s(); 855 0x78: BasicOperate::fsrc2({{Frd.udw = Frs2.udw;}}); 856 0x79: BasicOperate::fsrc2s({{Frds.uw = Frs2s.uw;}}); 857 0x7A: FailUnimpl::fornot1(); 858 0x7B: FailUnimpl::fornot1s(); 859 0x7C: FailUnimpl::for(); 860 0x7D: FailUnimpl::fors(); 861 0x7E: BasicOperate::fone({{Frd.udw = std::numeric_limits<uint64_t>::max();}}); 862 0x7F: BasicOperate::fones({{Frds.uw = std::numeric_limits<uint32_t>::max();}}); 863 0x80: Trap::shutdown({{fault = new IllegalInstruction;}}); 864 0x81: FailUnimpl::siam(); 865 } 866 0x37: Trap::impdep2({{fault = new IllegalInstruction;}}); 867 0x38: Branch::jmpl({{ 868 Addr target = Rs1 + Rs2_or_imm13; 869 if(target & 0x3) 870 fault = new MemAddressNotAligned; 871 else 872 { 873 if (Pstate<3:>) 874 Rd = (xc->readPC())<31:0>; 875 else 876 Rd = xc->readPC(); 877 NNPC = target; 878 } 879 }}); 880 0x39: Branch::return({{ 881 Addr target = Rs1 + Rs2_or_imm13; 882 if(fault == NoFault) 883 { 884 //Check for fills which are higher priority than alignment 885 //faults. 886 if(Canrestore == 0) 887 { 888 if(Otherwin) 889 fault = new FillNOther(4*Wstate<5:3>); 890 else 891 fault = new FillNNormal(4*Wstate<2:0>); 892 } 893 //Check for alignment faults 894 else if(target & 0x3) 895 fault = new MemAddressNotAligned; 896 else 897 { 898 NNPC = target; 899 Cwp = (Cwp - 1 + NWindows) % NWindows; 900 Cansave = Cansave + 1; 901 Canrestore = Canrestore - 1; 902 } 903 } 904 }}); 905 0x3A: decode CC 906 { 907 0x0: Trap::tcci({{ 908 if(passesCondition(Ccr<3:0>, COND2)) 909 { 910#if FULL_SYSTEM 911 int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2); 912 DPRINTF(Sparc, "The trap number is %d\n", lTrapNum); 913 fault = new TrapInstruction(lTrapNum); 914#else 915 DPRINTF(Sparc, "The syscall number is %d\n", R1); 916 xc->syscall(R1); 917#endif 918 } 919 }}, IsSerializeAfter, IsNonSpeculative); 920 0x2: Trap::tccx({{ 921 if(passesCondition(Ccr<7:4>, COND2)) 922 { 923#if FULL_SYSTEM 924 int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2); 925 DPRINTF(Sparc, "The trap number is %d\n", lTrapNum); 926 fault = new TrapInstruction(lTrapNum); 927#else 928 DPRINTF(Sparc, "The syscall number is %d\n", R1); 929 xc->syscall(R1); 930#endif 931 } 932 }}, IsSerializeAfter, IsNonSpeculative); 933 } 934 0x3B: Nop::flush({{/*Instruction memory flush*/}}); 935 0x3C: save({{ 936 if(Cansave == 0) 937 { 938 if(Otherwin) 939 fault = new SpillNOther(4*Wstate<5:3>); 940 else 941 fault = new SpillNNormal(4*Wstate<2:0>); 942 } 943 else if(Cleanwin - Canrestore == 0) 944 { 945 fault = new CleanWindow; 946 } 947 else 948 { 949 Cwp = (Cwp + 1) % NWindows; 950 Rd_next = Rs1 + Rs2_or_imm13; 951 Cansave = Cansave - 1; 952 Canrestore = Canrestore + 1; 953 } 954 }}); 955 0x3D: restore({{ 956 if(Canrestore == 0) 957 { 958 if(Otherwin) 959 fault = new FillNOther(4*Wstate<5:3>); 960 else 961 fault = new FillNNormal(4*Wstate<2:0>); 962 } 963 else 964 { 965 Cwp = (Cwp - 1 + NWindows) % NWindows; 966 Rd_prev = Rs1 + Rs2_or_imm13; 967 Cansave = Cansave + 1; 968 Canrestore = Canrestore - 1; 969 } 970 }}); 971 0x3E: decode FCN { 972 0x0: Priv::done({{ 973 if(Tl == 0) 974 return new IllegalInstruction; 975 976 Cwp = Tstate<4:0>; 977 Pstate = Tstate<20:8>; 978 Asi = Tstate<31:24>; 979 Ccr = Tstate<39:32>; 980 Gl = Tstate<42:40>; 981 Hpstate = Htstate; 982 NPC = Tnpc; 983 NNPC = Tnpc + 4; 984 Tl = Tl - 1; 985 }}); 986 0x1: Priv::retry({{ 987 if(Tl == 0) 988 return new IllegalInstruction; 989 Cwp = Tstate<4:0>; 990 Pstate = Tstate<20:8>; 991 Asi = Tstate<31:24>; 992 Ccr = Tstate<39:32>; 993 Gl = Tstate<42:40>; 994 Hpstate = Htstate; 995 NPC = Tpc; 996 NNPC = Tnpc; 997 Tl = Tl - 1; 998 }}); 999 } 1000 } 1001 } 1002 0x3: decode OP3 { 1003 format Load { 1004 0x00: lduw({{Rd = Mem.uw;}}); 1005 0x01: ldub({{Rd = Mem.ub;}}); 1006 0x02: lduh({{Rd = Mem.uhw;}}); 1007 0x03: ldtw({{ 1008 uint64_t val = Mem.udw; 1009 RdLow = val<31:0>; 1010 RdHigh = val<63:32>; 1011 }}); 1012 } 1013 format Store { 1014 0x04: stw({{Mem.uw = Rd.sw;}}); 1015 0x05: stb({{Mem.ub = Rd.sb;}}); 1016 0x06: sth({{Mem.uhw = Rd.shw;}}); 1017 0x07: sttw({{Mem.udw = RdLow<31:0> | (RdHigh<31:0> << 32);}}); 1018 } 1019 format Load { 1020 0x08: ldsw({{Rd = (int32_t)Mem.sw;}}); 1021 0x09: ldsb({{Rd = (int8_t)Mem.sb;}}); 1022 0x0A: ldsh({{Rd = (int16_t)Mem.shw;}}); 1023 0x0B: ldx({{Rd = (int64_t)Mem.sdw;}}); 1024 } 1025 0x0D: LoadStore::ldstub( 1026 {{uReg0 = Mem.ub;}}, 1027 {{Rd.ub = uReg0; 1028 Mem.ub = 0xFF;}}); 1029 0x0E: Store::stx({{Mem.udw = Rd}}); 1030 0x0F: LoadStore::swap( 1031 {{ uReg0 = Mem.uw}}, 1032 {{ Mem.uw = Rd.uw; 1033 Rd.uw = uReg0;}}); 1034 format LoadAlt { 1035 0x10: lduwa({{Rd = Mem.uw;}}, {{EXT_ASI}}); 1036 0x11: lduba({{Rd = Mem.ub;}}, {{EXT_ASI}}); 1037 0x12: lduha({{Rd = Mem.uhw;}}, {{EXT_ASI}}); 1038 0x13: decode EXT_ASI { 1039 //ASI_LDTD_AIUP 1040 0x22: TwinLoad::ldtx_aiup( 1041 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1042 //ASI_LDTD_AIUS 1043 0x23: TwinLoad::ldtx_aius( 1044 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1045 //ASI_QUAD_LDD 1046 0x24: TwinLoad::ldtx_quad_ldd( 1047 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1048 //ASI_LDTX_REAL 1049 0x26: TwinLoad::ldtx_real( 1050 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1051 //ASI_LDTX_N 1052 0x27: TwinLoad::ldtx_n( 1053 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1054 //ASI_LDTX_L 1055 0x2C: TwinLoad::ldtx_l( 1056 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1057 //ASI_LDTX_REAL_L 1058 0x2E: TwinLoad::ldtx_real_l( 1059 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1060 //ASI_LDTX_N_L 1061 0x2F: TwinLoad::ldtx_n_l( 1062 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1063 //ASI_LDTX_P 1064 0xE2: TwinLoad::ldtx_p( 1065 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1066 //ASI_LDTX_S 1067 0xE3: TwinLoad::ldtx_s( 1068 {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); 1069 default: ldtwa({{ 1070 uint64_t val = Mem.udw; 1071 RdLow = val<31:0>; 1072 RdHigh = val<63:32>; 1073 }}, {{EXT_ASI}}); 1074 } 1075 } 1076 format StoreAlt { 1077 0x14: stwa({{Mem.uw = Rd;}}, {{EXT_ASI}}); 1078 0x15: stba({{Mem.ub = Rd;}}, {{EXT_ASI}}); 1079 0x16: stha({{Mem.uhw = Rd;}}, {{EXT_ASI}}); 1080 0x17: sttwa({{Mem.udw = RdLow<31:0> | RdHigh<31:0> << 32;}}, {{EXT_ASI}}); 1081 } 1082 format LoadAlt { 1083 0x18: ldswa({{Rd = (int32_t)Mem.sw;}}, {{EXT_ASI}}); 1084 0x19: ldsba({{Rd = (int8_t)Mem.sb;}}, {{EXT_ASI}}); 1085 0x1A: ldsha({{Rd = (int16_t)Mem.shw;}}, {{EXT_ASI}}); 1086 0x1B: ldxa({{Rd = (int64_t)Mem.sdw;}}, {{EXT_ASI}}); 1087 } 1088 0x1D: LoadStoreAlt::ldstuba( 1089 {{uReg0 = Mem.ub;}}, 1090 {{Rd.ub = uReg0; 1091 Mem.ub = 0xFF;}}, {{EXT_ASI}}); 1092 0x1E: StoreAlt::stxa({{Mem.udw = Rd}}, {{EXT_ASI}}); 1093 0x1F: LoadStoreAlt::swapa( 1094 {{ uReg0 = Mem.uw}}, 1095 {{ Mem.uw = Rd.uw; 1096 Rd.uw = uReg0;}}, {{EXT_ASI}}); 1097 format Trap { 1098 0x20: Load::ldf({{Frds.uw = Mem.uw;}}); 1099 0x21: decode X { 1100 0x0: Load::ldfsr({{Fsr = Mem.uw | Fsr<63:32>;}}); 1101 0x1: Load::ldxfsr({{Fsr = Mem.udw;}}); 1102 } 1103 0x22: ldqf({{fault = new FpDisabled;}}); 1104 0x23: Load::lddf({{Frd.udw = Mem.udw;}}); 1105 0x24: Store::stf({{Mem.uw = Frds.uw;}}); 1106 0x25: decode X { 1107 0x0: Store::stfsr({{Mem.uw = Fsr<31:0>;}}); 1108 0x1: Store::stxfsr({{Mem.udw = Fsr;}}); 1109 } 1110 0x26: stqf({{fault = new FpDisabled;}}); 1111 0x27: Store::stdf({{Mem.udw = Frd.udw;}}); 1112 0x2D: Nop::prefetch({{ }}); 1113 0x30: LoadAlt::ldfa({{Frds.uw = Mem.uw;}}, {{EXT_ASI}}); 1114 0x32: ldqfa({{fault = new FpDisabled;}}); 1115 format LoadAlt { 1116 0x33: decode EXT_ASI { 1117 //ASI_NUCLEUS 1118 0x04: FailUnimpl::lddfa_n(); 1119 //ASI_NUCLEUS_LITTLE 1120 0x0C: FailUnimpl::lddfa_nl(); 1121 //ASI_AS_IF_USER_PRIMARY 1122 0x10: FailUnimpl::lddfa_aiup(); 1123 //ASI_AS_IF_USER_PRIMARY_LITTLE 1124 0x18: FailUnimpl::lddfa_aiupl(); 1125 //ASI_AS_IF_USER_SECONDARY 1126 0x11: FailUnimpl::lddfa_aius(); 1127 //ASI_AS_IF_USER_SECONDARY_LITTLE 1128 0x19: FailUnimpl::lddfa_aiusl(); 1129 //ASI_REAL 1130 0x14: FailUnimpl::lddfa_real(); 1131 //ASI_REAL_LITTLE 1132 0x1C: FailUnimpl::lddfa_real_l(); 1133 //ASI_REAL_IO 1134 0x15: FailUnimpl::lddfa_real_io(); 1135 //ASI_REAL_IO_LITTLE 1136 0x1D: FailUnimpl::lddfa_real_io_l(); 1137 //ASI_PRIMARY 1138 0x80: FailUnimpl::lddfa_p(); 1139 //ASI_PRIMARY_LITTLE 1140 0x88: FailUnimpl::lddfa_pl(); 1141 //ASI_SECONDARY 1142 0x81: FailUnimpl::lddfa_s(); 1143 //ASI_SECONDARY_LITTLE 1144 0x89: FailUnimpl::lddfa_sl(); 1145 //ASI_PRIMARY_NO_FAULT 1146 0x82: FailUnimpl::lddfa_pnf(); 1147 //ASI_PRIMARY_NO_FAULT_LITTLE 1148 0x8A: FailUnimpl::lddfa_pnfl(); 1149 //ASI_SECONDARY_NO_FAULT 1150 0x83: FailUnimpl::lddfa_snf(); 1151 //ASI_SECONDARY_NO_FAULT_LITTLE 1152 0x8B: FailUnimpl::lddfa_snfl(); 1153 1154 format BlockLoad { 1155 // LDBLOCKF 1156 //ASI_BLOCK_AS_IF_USER_PRIMARY 1157 0x16: FailUnimpl::ldblockf_aiup(); 1158 //ASI_BLOCK_AS_IF_USER_SECONDARY 1159 0x17: FailUnimpl::ldblockf_aius(); 1160 //ASI_BLOCK_AS_IF_USER_PRIMARY_LITTLE 1161 0x1E: FailUnimpl::ldblockf_aiupl(); 1162 //ASI_BLOCK_AS_IF_USER_SECONDARY_LITTLE 1163 0x1F: FailUnimpl::ldblockf_aiusl(); 1164 //ASI_BLOCK_PRIMARY 1165 0xF0: ldblockf_p({{Frd_N.udw = Mem.udw;}}, {{EXT_ASI}}); 1166 //ASI_BLOCK_SECONDARY 1167 0xF1: FailUnimpl::ldblockf_s(); 1168 //ASI_BLOCK_PRIMARY_LITTLE 1169 0xF8: FailUnimpl::ldblockf_pl(); 1170 //ASI_BLOCK_SECONDARY_LITTLE 1171 0xF9: FailUnimpl::ldblockf_sl(); 1172 } 1173 1174 //LDSHORTF 1175 //ASI_FL8_PRIMARY 1176 0xD0: FailUnimpl::ldshortf_8p(); 1177 //ASI_FL8_SECONDARY 1178 0xD1: FailUnimpl::ldshortf_8s(); 1179 //ASI_FL8_PRIMARY_LITTLE 1180 0xD8: FailUnimpl::ldshortf_8pl(); 1181 //ASI_FL8_SECONDARY_LITTLE 1182 0xD9: FailUnimpl::ldshortf_8sl(); 1183 //ASI_FL16_PRIMARY 1184 0xD2: FailUnimpl::ldshortf_16p(); 1185 //ASI_FL16_SECONDARY 1186 0xD3: FailUnimpl::ldshortf_16s(); 1187 //ASI_FL16_PRIMARY_LITTLE 1188 0xDA: FailUnimpl::ldshortf_16pl(); 1189 //ASI_FL16_SECONDARY_LITTLE 1190 0xDB: FailUnimpl::ldshortf_16sl(); 1191 //Not an ASI which is legal with lddfa 1192 default: Trap::lddfa_bad_asi( 1193 {{fault = new DataAccessException;}}); 1194 } 1195 } 1196 0x34: Store::stfa({{Mem.uw = Frds.uw;}}); 1197 0x36: stqfa({{fault = new FpDisabled;}}); 1198 format StoreAlt { 1199 0x37: decode EXT_ASI { 1200 //ASI_NUCLEUS 1201 0x04: FailUnimpl::stdfa_n(); 1202 //ASI_NUCLEUS_LITTLE 1203 0x0C: FailUnimpl::stdfa_nl(); 1204 //ASI_AS_IF_USER_PRIMARY 1205 0x10: FailUnimpl::stdfa_aiup(); 1206 //ASI_AS_IF_USER_PRIMARY_LITTLE 1207 0x18: FailUnimpl::stdfa_aiupl(); 1208 //ASI_AS_IF_USER_SECONDARY 1209 0x11: FailUnimpl::stdfa_aius(); 1210 //ASI_AS_IF_USER_SECONDARY_LITTLE 1211 0x19: FailUnimpl::stdfa_aiusl(); 1212 //ASI_REAL 1213 0x14: FailUnimpl::stdfa_real(); 1214 //ASI_REAL_LITTLE 1215 0x1C: FailUnimpl::stdfa_real_l(); 1216 //ASI_REAL_IO 1217 0x15: FailUnimpl::stdfa_real_io(); 1218 //ASI_REAL_IO_LITTLE 1219 0x1D: FailUnimpl::stdfa_real_io_l(); 1220 //ASI_PRIMARY 1221 0x80: FailUnimpl::stdfa_p(); 1222 //ASI_PRIMARY_LITTLE 1223 0x88: FailUnimpl::stdfa_pl(); 1224 //ASI_SECONDARY 1225 0x81: FailUnimpl::stdfa_s(); 1226 //ASI_SECONDARY_LITTLE 1227 0x89: FailUnimpl::stdfa_sl(); 1228 //ASI_PRIMARY_NO_FAULT 1229 0x82: FailUnimpl::stdfa_pnf(); 1230 //ASI_PRIMARY_NO_FAULT_LITTLE 1231 0x8A: FailUnimpl::stdfa_pnfl(); 1232 //ASI_SECONDARY_NO_FAULT 1233 0x83: FailUnimpl::stdfa_snf(); 1234 //ASI_SECONDARY_NO_FAULT_LITTLE 1235 0x8B: FailUnimpl::stdfa_snfl(); 1236 1237 format BlockStore { 1238 // STBLOCKF 1239 //ASI_BLOCK_AS_IF_USER_PRIMARY 1240 0x16: FailUnimpl::stblockf_aiup(); 1241 //ASI_BLOCK_AS_IF_USER_SECONDARY 1242 0x17: FailUnimpl::stblockf_aius(); 1243 //ASI_BLOCK_AS_IF_USER_PRIMARY_LITTLE 1244 0x1E: FailUnimpl::stblockf_aiupl(); 1245 //ASI_BLOCK_AS_IF_USER_SECONDARY_LITTLE 1246 0x1F: FailUnimpl::stblockf_aiusl(); 1247 //ASI_BLOCK_PRIMARY 1248 0xF0: stblockf_p({{Mem.udw = Frd_N.udw;}}, {{EXT_ASI}}); 1249 //ASI_BLOCK_SECONDARY 1250 0xF1: FailUnimpl::stblockf_s(); 1251 //ASI_BLOCK_PRIMARY_LITTLE 1252 0xF8: FailUnimpl::stblockf_pl(); 1253 //ASI_BLOCK_SECONDARY_LITTLE 1254 0xF9: FailUnimpl::stblockf_sl(); 1255 } 1256 1257 //STSHORTF 1258 //ASI_FL8_PRIMARY 1259 0xD0: FailUnimpl::stshortf_8p(); 1260 //ASI_FL8_SECONDARY 1261 0xD1: FailUnimpl::stshortf_8s(); 1262 //ASI_FL8_PRIMARY_LITTLE 1263 0xD8: FailUnimpl::stshortf_8pl(); 1264 //ASI_FL8_SECONDARY_LITTLE 1265 0xD9: FailUnimpl::stshortf_8sl(); 1266 //ASI_FL16_PRIMARY 1267 0xD2: FailUnimpl::stshortf_16p(); 1268 //ASI_FL16_SECONDARY 1269 0xD3: FailUnimpl::stshortf_16s(); 1270 //ASI_FL16_PRIMARY_LITTLE 1271 0xDA: FailUnimpl::stshortf_16pl(); 1272 //ASI_FL16_SECONDARY_LITTLE 1273 0xDB: FailUnimpl::stshortf_16sl(); 1274 //Not an ASI which is legal with lddfa 1275 default: Trap::stdfa_bad_asi( 1276 {{fault = new DataAccessException;}}); 1277 } 1278 } 1279 0x3C: Cas::casa( 1280 {{uReg0 = Mem.uw;}}, 1281 {{if(Rs2.uw == uReg0) 1282 Mem.uw = Rd.uw; 1283 else 1284 storeCond = false; 1285 Rd.uw = uReg0;}}, {{EXT_ASI}}); 1286 0x3D: Nop::prefetcha({{ }}); 1287 0x3E: Cas::casxa( 1288 {{uReg0 = Mem.udw;}}, 1289 {{if(Rs2 == uReg0) 1290 Mem.udw = Rd; 1291 else 1292 storeCond = false; 1293 Rd = uReg0;}}, {{EXT_ASI}}); 1294 } 1295 } 1296} 1297