mem.isa revision 5268
1// -*- mode:c++ -*- 2 3// Copyright (c) 2007 MIPS Technologies, Inc. 4// All rights reserved. 5// 6// Redistribution and use in source and binary forms, with or without 7// modification, are permitted provided that the following conditions are 8// met: redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer; 10// redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution; 13// neither the name of the copyright holders nor the names of its 14// contributors may be used to endorse or promote products derived from 15// this software without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28// 29// Authors: Steve Reinhardt 30// Korey Sewell 31 32//////////////////////////////////////////////////////////////////// 33// 34// Memory-format instructions 35// 36 37output header {{ 38 /** 39 * Base class for general Mips memory-format instructions. 40 */ 41 class Memory : public MipsStaticInst 42 { 43 protected: 44 45 /// Memory request flags. See mem_req_base.hh. 46 unsigned memAccessFlags; 47 /// Pointer to EAComp object. 48 const StaticInstPtr eaCompPtr; 49 /// Pointer to MemAcc object. 50 const StaticInstPtr memAccPtr; 51 52 /// Displacement for EA calculation (signed). 53 int32_t disp; 54 55 /// Constructor 56 Memory(const char *mnem, MachInst _machInst, OpClass __opClass, 57 StaticInstPtr _eaCompPtr = nullStaticInstPtr, 58 StaticInstPtr _memAccPtr = nullStaticInstPtr) 59 : MipsStaticInst(mnem, _machInst, __opClass), 60 memAccessFlags(0), eaCompPtr(_eaCompPtr), memAccPtr(_memAccPtr), 61 disp(sext<16>(OFFSET)) 62 { 63 } 64 65 std::string 66 generateDisassembly(Addr pc, const SymbolTable *symtab) const; 67 68 public: 69 70 const StaticInstPtr &eaCompInst() const { return eaCompPtr; } 71 const StaticInstPtr &memAccInst() const { return memAccPtr; } 72 73 unsigned memAccFlags() { return memAccessFlags; } 74 }; 75 76 /** 77 * Base class for a few miscellaneous memory-format insts 78 * that don't interpret the disp field 79 */ 80 class MemoryNoDisp : public Memory 81 { 82 protected: 83 /// Constructor 84 MemoryNoDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass, 85 StaticInstPtr _eaCompPtr = nullStaticInstPtr, 86 StaticInstPtr _memAccPtr = nullStaticInstPtr) 87 : Memory(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr) 88 { 89 } 90 91 std::string 92 generateDisassembly(Addr pc, const SymbolTable *symtab) const; 93 }; 94}}; 95 96 97output decoder {{ 98 std::string 99 Memory::generateDisassembly(Addr pc, const SymbolTable *symtab) const 100 { 101 return csprintf("%-10s %c%d, %d(r%d)", mnemonic, 102 flags[IsFloating] ? 'f' : 'r', RT, disp, RS); 103 } 104 105 std::string 106 MemoryNoDisp::generateDisassembly(Addr pc, const SymbolTable *symtab) const 107 { 108 return csprintf("%-10s %c%d, r%d(r%d)", mnemonic, 109 flags[IsFloating] ? 'f' : 'r', 110 flags[IsFloating] ? FD : RD, 111 RS, RT); 112 } 113 114}}; 115 116output exec {{ 117 /** return data in cases where there the size of data is only 118 known in the packet 119 */ 120 uint64_t getMemData(%(CPU_exec_context)s *xc, Packet *packet) { 121 switch (packet->getSize()) 122 { 123 case 1: 124 return packet->get<uint8_t>(); 125 126 case 2: 127 return packet->get<uint16_t>(); 128 129 case 4: 130 return packet->get<uint32_t>(); 131 132 case 8: 133 return packet->get<uint64_t>(); 134 135 default: 136 std::cerr << "bad store data size = " << packet->getSize() << std::endl; 137 138 assert(0); 139 return 0; 140 } 141 } 142 143 144}}; 145 146def template LoadStoreDeclare {{ 147 /** 148 * Static instruction class for "%(mnemonic)s". 149 */ 150 class %(class_name)s : public %(base_class)s 151 { 152 protected: 153 154 /** 155 * "Fake" effective address computation class for "%(mnemonic)s". 156 */ 157 class EAComp : public %(base_class)s 158 { 159 public: 160 /// Constructor 161 EAComp(ExtMachInst machInst); 162 163 %(BasicExecDeclare)s 164 }; 165 166 /** 167 * "Fake" memory access instruction class for "%(mnemonic)s". 168 */ 169 class MemAcc : public %(base_class)s 170 { 171 public: 172 /// Constructor 173 MemAcc(ExtMachInst machInst); 174 175 %(BasicExecDeclare)s 176 }; 177 178 public: 179 180 /// Constructor. 181 %(class_name)s(ExtMachInst machInst); 182 183 %(BasicExecDeclare)s 184 185 %(InitiateAccDeclare)s 186 187 %(CompleteAccDeclare)s 188 189 %(MemAccSizeDeclare)s 190 }; 191}}; 192 193 194def template InitiateAccDeclare {{ 195 Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const; 196}}; 197 198 199def template CompleteAccDeclare {{ 200 Fault completeAcc(Packet *, %(CPU_exec_context)s *, Trace::InstRecord *) const; 201}}; 202 203def template MemAccSizeDeclare {{ 204 int memAccSize(%(CPU_exec_context)s *xc); 205}}; 206 207 208def template MiscMemAccSize {{ 209 int %(class_name)s::memAccSize(%(CPU_exec_context)s *xc) 210 { 211 panic("Misc instruction does not support split access method!"); 212 return 0; 213 } 214}}; 215 216def template EACompConstructor {{ 217 /** TODO: change op_class to AddrGenOp or something (requires 218 * creating new member of OpClass enum in op_class.hh, updating 219 * config files, etc.). */ 220 inline %(class_name)s::EAComp::EAComp(ExtMachInst machInst) 221 : %(base_class)s("%(mnemonic)s (EAComp)", machInst, IntAluOp) 222 { 223 %(constructor)s; 224 } 225}}; 226 227 228def template MemAccConstructor {{ 229 inline %(class_name)s::MemAcc::MemAcc(ExtMachInst machInst) 230 : %(base_class)s("%(mnemonic)s (MemAcc)", machInst, %(op_class)s) 231 { 232 %(constructor)s; 233 } 234}}; 235 236 237def template LoadStoreConstructor {{ 238 inline %(class_name)s::%(class_name)s(ExtMachInst machInst) 239 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, 240 new EAComp(machInst), new MemAcc(machInst)) 241 { 242 %(constructor)s; 243 } 244}}; 245 246 247def template EACompExecute {{ 248 Fault 249 %(class_name)s::EAComp::execute(%(CPU_exec_context)s *xc, 250 Trace::InstRecord *traceData) const 251 { 252 Addr EA; 253 Fault fault = NoFault; 254 255 if (this->isFloating()) { 256 %(fp_enable_check)s; 257 258 if(fault != NoFault) 259 return fault; 260 } 261 262 %(op_decl)s; 263 %(op_rd)s; 264 %(ea_code)s; 265 266 // NOTE: Trace Data is written using execute or completeAcc templates 267 if (fault == NoFault) { 268 xc->setEA(EA); 269 } 270 271 return fault; 272 } 273}}; 274 275def template LoadStoreFPEACompExecute {{ 276 Fault 277 %(class_name)s::EAComp::execute(%(CPU_exec_context)s *xc, 278 Trace::InstRecord *traceData) const 279 { 280 Addr EA; 281 Fault fault = NoFault; 282 283 %(fp_enable_check)s; 284 if(fault != NoFault) 285 return fault; 286 %(op_decl)s; 287 %(op_rd)s; 288 %(ea_code)s; 289 290 // NOTE: Trace Data is written using execute or completeAcc templates 291 if (fault == NoFault) { 292 xc->setEA(EA); 293 } 294 295 return fault; 296 } 297}}; 298 299 300def template LoadMemAccExecute {{ 301 Fault 302 %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc, 303 Trace::InstRecord *traceData) const 304 { 305 Addr EA; 306 307 Fault fault = NoFault; 308 309 if (this->isFloating()) { 310 %(fp_enable_check)s; 311 312 if(fault != NoFault) 313 return fault; 314 } 315 316 %(op_decl)s; 317 %(op_rd)s; 318 319 EA = xc->getEA(); 320 321 fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags); 322 323 %(memacc_code)s; 324 325 // NOTE: Write back data using execute or completeAcc templates 326 327 return fault; 328 } 329}}; 330 331 332def template LoadExecute {{ 333 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 334 Trace::InstRecord *traceData) const 335 { 336 Addr EA; 337 Fault fault = NoFault; 338 339 if (this->isFloating()) { 340 %(fp_enable_check)s; 341 342 if(fault != NoFault) 343 return fault; 344 } 345 346 %(op_decl)s; 347 %(op_rd)s; 348 %(ea_code)s; 349 350 if (fault == NoFault) { 351 fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags); 352 %(memacc_code)s; 353 } 354 355 if (fault == NoFault) { 356 %(op_wb)s; 357 } 358 359 return fault; 360 } 361}}; 362 363 364def template LoadInitiateAcc {{ 365 Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, 366 Trace::InstRecord *traceData) const 367 { 368 Addr EA; 369 Fault fault = NoFault; 370 371 if (this->isFloating()) { 372 %(fp_enable_check)s; 373 374 if(fault != NoFault) 375 return fault; 376 } 377 378 %(op_src_decl)s; 379 %(op_rd)s; 380 %(ea_code)s; 381 382 if (fault == NoFault) { 383 fault = xc->read(EA, (uint%(mem_acc_size)d_t &)Mem, memAccessFlags); 384 } 385 386 return fault; 387 } 388}}; 389 390def template LoadCompleteAcc {{ 391 Fault %(class_name)s::completeAcc(Packet *pkt, 392 %(CPU_exec_context)s *xc, 393 Trace::InstRecord *traceData) const 394 { 395 Fault fault = NoFault; 396 397 if (this->isFloating()) { 398 %(fp_enable_check)s; 399 400 if(fault != NoFault) 401 return fault; 402 } 403 404 %(op_decl)s; 405 %(op_rd)s; 406 407 Mem = pkt->get<typeof(Mem)>(); 408 409 if (fault == NoFault) { 410 %(memacc_code)s; 411 } 412 413 if (fault == NoFault) { 414 %(op_wb)s; 415 } 416 417 return fault; 418 } 419}}; 420 421 422def template LoadStoreMemAccSize {{ 423 int %(class_name)s::memAccSize(%(CPU_exec_context)s *xc) 424 { 425 // Return the memory access size in bytes 426 return (%(mem_acc_size)d / 8); 427 } 428}}; 429 430def template StoreMemAccExecute {{ 431 Fault 432 %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc, 433 Trace::InstRecord *traceData) const 434 { 435 Addr EA; 436 Fault fault = NoFault; 437 438 %(fp_enable_check)s; 439 %(op_decl)s; 440 %(op_rd)s; 441 442 EA = xc->getEA(); 443 444 if (fault == NoFault) { 445 %(memacc_code)s; 446 } 447 448 if (fault == NoFault) { 449 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 450 memAccessFlags, NULL); 451 // @NOTE: Need to Call Complete Access to Set Trace Data 452 //if (traceData) { traceData->setData(Mem); } 453 } 454 455 return fault; 456 } 457}}; 458 459def template StoreCondMemAccExecute {{ 460 Fault 461 %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc, 462 Trace::InstRecord *traceData) const 463 { 464 Addr EA; 465 Fault fault = NoFault; 466 uint64_t write_result = 0; 467 468 %(fp_enable_check)s; 469 %(op_decl)s; 470 %(op_rd)s; 471 EA = xc->getEA(); 472 473 if (fault == NoFault) { 474 %(memacc_code)s; 475 } 476 477 if (fault == NoFault) { 478 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 479 memAccessFlags, &write_result); 480 if (traceData) { traceData->setData(Mem); } 481 } 482 483 if (fault == NoFault) { 484 %(postacc_code)s; 485 } 486 487 if (fault == NoFault) { 488 %(op_wb)s; 489 } 490 491 return fault; 492 } 493}}; 494 495def template StoreExecute {{ 496 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 497 Trace::InstRecord *traceData) const 498 { 499 Addr EA; 500 Fault fault = NoFault; 501 502 %(fp_enable_check)s; 503 %(op_decl)s; 504 %(op_rd)s; 505 %(ea_code)s; 506 507 if (fault == NoFault) { 508 %(memacc_code)s; 509 } 510 511 if (fault == NoFault) { 512 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 513 memAccessFlags, NULL); 514 if (traceData) { traceData->setData(Mem); } 515 } 516 517 if (fault == NoFault) { 518 %(postacc_code)s; 519 } 520 521 if (fault == NoFault) { 522 %(op_wb)s; 523 } 524 525 return fault; 526 } 527}}; 528 529 530def template StoreFPExecute {{ 531 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 532 Trace::InstRecord *traceData) const 533 { 534 Addr EA; 535 Fault fault = NoFault; 536 537 %(fp_enable_check)s; 538 if(fault != NoFault) 539 return fault; 540 %(op_decl)s; 541 %(op_rd)s; 542 %(ea_code)s; 543 544 if (fault == NoFault) { 545 %(memacc_code)s; 546 } 547 548 if (fault == NoFault) { 549 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 550 memAccessFlags, NULL); 551 if (traceData) { traceData->setData(Mem); } 552 } 553 554 if (fault == NoFault) { 555 %(postacc_code)s; 556 } 557 558 if (fault == NoFault) { 559 %(op_wb)s; 560 } 561 562 return fault; 563 } 564}}; 565 566def template StoreCondExecute {{ 567 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 568 Trace::InstRecord *traceData) const 569 { 570 Addr EA; 571 Fault fault = NoFault; 572 uint64_t write_result = 0; 573 574 %(fp_enable_check)s; 575 %(op_decl)s; 576 %(op_rd)s; 577 %(ea_code)s; 578 579 if (fault == NoFault) { 580 %(memacc_code)s; 581 } 582 583 if (fault == NoFault) { 584 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 585 memAccessFlags, &write_result); 586 if (traceData) { traceData->setData(Mem); } 587 } 588 589 if (fault == NoFault) { 590 %(postacc_code)s; 591 } 592 593 if (fault == NoFault) { 594 %(op_wb)s; 595 } 596 597 return fault; 598 } 599}}; 600 601def template StoreInitiateAcc {{ 602 Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, 603 Trace::InstRecord *traceData) const 604 { 605 Addr EA; 606 Fault fault = NoFault; 607 608 %(fp_enable_check)s; 609 %(op_decl)s; 610 %(op_rd)s; 611 %(ea_code)s; 612 613 if (fault == NoFault) { 614 %(memacc_code)s; 615 } 616 617 if (fault == NoFault) { 618 fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA, 619 memAccessFlags, NULL); 620 if (traceData) { traceData->setData(Mem); } 621 } 622 623 return fault; 624 } 625}}; 626 627 628def template StoreCompleteAcc {{ 629 Fault %(class_name)s::completeAcc(Packet *pkt, 630 %(CPU_exec_context)s *xc, 631 Trace::InstRecord *traceData) const 632 { 633 Fault fault = NoFault; 634 635 %(fp_enable_check)s; 636 %(op_dest_decl)s; 637 638 if (fault == NoFault) { 639 %(postacc_code)s; 640 } 641 642 if (fault == NoFault) { 643 %(op_wb)s; 644 645 if (traceData) { traceData->setData(getMemData(xc, pkt)); } 646 } 647 648 return fault; 649 } 650}}; 651 652 653def template StoreCompleteAcc {{ 654 Fault %(class_name)s::completeAcc(Packet *pkt, 655 %(CPU_exec_context)s *xc, 656 Trace::InstRecord *traceData) const 657 { 658 Fault fault = NoFault; 659 660 %(op_dest_decl)s; 661 662 if (fault == NoFault) { 663 %(postacc_code)s; 664 } 665 666 if (fault == NoFault) { 667 %(op_wb)s; 668 669 if (traceData) { traceData->setData(getMemData(xc, pkt)); } 670 } 671 672 return fault; 673 } 674}}; 675 676def template StoreCondCompleteAcc {{ 677 Fault %(class_name)s::completeAcc(Packet *pkt, 678 %(CPU_exec_context)s *xc, 679 Trace::InstRecord *traceData) const 680 { 681 Fault fault = NoFault; 682 683 %(fp_enable_check)s; 684 %(op_dest_decl)s; 685 686 uint64_t write_result = pkt->req->getExtraData(); 687 688 if (fault == NoFault) { 689 %(postacc_code)s; 690 } 691 692 if (fault == NoFault) { 693 %(op_wb)s; 694 } 695 696 return fault; 697 } 698}}; 699 700 701def template MiscMemAccExecute {{ 702 Fault %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc, 703 Trace::InstRecord *traceData) const 704 { 705 Addr EA; 706 Fault fault = NoFault; 707 708 %(fp_enable_check)s; 709 %(op_decl)s; 710 %(op_rd)s; 711 EA = xc->getEA(); 712 713 if (fault == NoFault) { 714 %(memacc_code)s; 715 } 716 717 return NoFault; 718 } 719}}; 720 721def template MiscExecute {{ 722 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 723 Trace::InstRecord *traceData) const 724 { 725 Addr EA; 726 Fault fault = NoFault; 727 728 %(fp_enable_check)s; 729 %(op_decl)s; 730 %(op_rd)s; 731 %(ea_code)s; 732 733 if (fault == NoFault) { 734 %(memacc_code)s; 735 } 736 737 return NoFault; 738 } 739}}; 740 741def template MiscInitiateAcc {{ 742 Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc, 743 Trace::InstRecord *traceData) const 744 { 745 panic("Misc instruction does not support split access method!"); 746 return NoFault; 747 } 748}}; 749 750 751def template MiscCompleteAcc {{ 752 Fault %(class_name)s::completeAcc(Packet *pkt, 753 %(CPU_exec_context)s *xc, 754 Trace::InstRecord *traceData) const 755 { 756 panic("Misc instruction does not support split access method!"); 757 758 return NoFault; 759 } 760}}; 761 762 763def template MiscMemAccSize {{ 764 int %(class_name)s::memAccSize(%(CPU_exec_context)s *xc) 765 { 766 panic("Misc instruction does not support split access method!"); 767 return 0; 768 } 769}}; 770 771def format LoadMemory(memacc_code, ea_code = {{ EA = Rs + disp; }}, 772 mem_flags = [], inst_flags = []) {{ 773 (header_output, decoder_output, decode_block, exec_output) = \ 774 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 775 decode_template = ImmNopCheckDecode, 776 exec_template_base = 'Load') 777}}; 778 779 780def format StoreMemory(memacc_code, ea_code = {{ EA = Rs + disp; }}, 781 mem_flags = [], inst_flags = []) {{ 782 (header_output, decoder_output, decode_block, exec_output) = \ 783 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 784 exec_template_base = 'Store') 785}}; 786 787def format LoadIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }}, 788 mem_flags = [], inst_flags = []) {{ 789 inst_flags += ['IsIndexed'] 790 (header_output, decoder_output, decode_block, exec_output) = \ 791 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 792 decode_template = ImmNopCheckDecode, 793 exec_template_base = 'Load') 794}}; 795 796def format StoreIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }}, 797 mem_flags = [], inst_flags = []) {{ 798 inst_flags += ['IsIndexed'] 799 (header_output, decoder_output, decode_block, exec_output) = \ 800 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 801 exec_template_base = 'Store') 802}}; 803 804def format LoadFPIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }}, 805 mem_flags = [], inst_flags = []) {{ 806 inst_flags += ['IsIndexed', 'IsFloating'] 807 (header_output, decoder_output, decode_block, exec_output) = \ 808 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 809 decode_template = ImmNopCheckDecode, 810 exec_template_base = 'Load') 811}}; 812 813def format StoreFPIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }}, 814 mem_flags = [], inst_flags = []) {{ 815 inst_flags += ['IsIndexed', 'IsFloating'] 816 (header_output, decoder_output, decode_block, exec_output) = \ 817 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 818 exec_template_base = 'Store') 819}}; 820 821 822def format LoadUnalignedMemory(memacc_code, ea_code = {{ EA = (Rs + disp) & ~3; }}, 823 mem_flags = [], inst_flags = []) {{ 824 decl_code = 'uint32_t mem_word = Mem.uw;\n' 825 decl_code += 'uint32_t unalign_addr = Rs + disp;\n' 826 decl_code += 'uint32_t byte_offset = unalign_addr & 3;\n' 827 decl_code += '#if BYTE_ORDER == BIG_ENDIAN\n' 828 decl_code += '\tbyte_offset ^= 3;\n' 829 decl_code += '#endif\n' 830 831 memacc_code = decl_code + memacc_code 832 833 (header_output, decoder_output, decode_block, exec_output) = \ 834 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 835 decode_template = ImmNopCheckDecode, 836 exec_template_base = 'Load') 837}}; 838 839def format StoreUnalignedMemory(memacc_code, ea_code = {{ EA = (Rs + disp) & ~3; }}, 840 mem_flags = [], inst_flags = []) {{ 841 decl_code = 'uint32_t mem_word = 0;\n' 842 decl_code += 'uint32_t unaligned_addr = Rs + disp;\n' 843 decl_code += 'uint32_t byte_offset = unaligned_addr & 3;\n' 844 decl_code += '#if BYTE_ORDER == BIG_ENDIAN\n' 845 decl_code += '\tbyte_offset ^= 3;\n' 846 decl_code += '#endif\n' 847 decl_code += 'fault = xc->read(EA, (uint32_t&)mem_word, memAccessFlags);\n' 848 #decl_code += 'xc->readFunctional(EA,(uint32_t&)mem_word);' 849 memacc_code = decl_code + memacc_code + '\nMem = mem_word;\n' 850 851 (header_output, decoder_output, decode_block, exec_output) = \ 852 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 853 exec_template_base = 'Store') 854}}; 855 856def format Prefetch(ea_code = {{ EA = Rs + disp; }}, 857 mem_flags = [], pf_flags = [], inst_flags = []) {{ 858 pf_mem_flags = mem_flags + pf_flags + ['NO_FAULT'] 859 pf_inst_flags = inst_flags + ['IsMemRef', 'IsLoad', 860 'IsDataPrefetch', 'MemReadOp'] 861 862 (header_output, decoder_output, decode_block, exec_output) = \ 863 LoadStoreBase(name, Name, ea_code, 864 'xc->prefetch(EA, memAccessFlags);', 865 pf_mem_flags, pf_inst_flags, exec_template_base = 'Misc') 866 867}}; 868 869def format StoreCond(memacc_code, postacc_code, 870 ea_code = {{ EA = Rs + disp; }}, 871 mem_flags = [], inst_flags = []) {{ 872 (header_output, decoder_output, decode_block, exec_output) = \ 873 LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, 874 postacc_code, exec_template_base = 'StoreCond') 875}}; 876