pred_inst.hh revision 6253
16253Sgblack@eecs.umich.edu/* Copyright (c) 2007-2008 The Florida State University 26253Sgblack@eecs.umich.edu * All rights reserved. 36253Sgblack@eecs.umich.edu * 46253Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 56253Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 66253Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 76253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 86253Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 96253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 106253Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 116253Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 126253Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 136253Sgblack@eecs.umich.edu * this software without specific prior written permission. 146253Sgblack@eecs.umich.edu * 156253Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 166253Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 176253Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 186253Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 196253Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 206253Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 216253Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 226253Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 236253Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 246253Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 256253Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 266253Sgblack@eecs.umich.edu * 276253Sgblack@eecs.umich.edu * Authors: Stephen Hines 286253Sgblack@eecs.umich.edu */ 296253Sgblack@eecs.umich.edu#ifndef __ARCH_ARM_INSTS_PREDINST_HH__ 306253Sgblack@eecs.umich.edu#define __ARCH_ARM_INSTS_PREDINST_HH__ 316253Sgblack@eecs.umich.edu 326253Sgblack@eecs.umich.edu#include "arch/arm/insts/static_inst.hh" 336253Sgblack@eecs.umich.edu#include "base/trace.hh" 346253Sgblack@eecs.umich.edu 356253Sgblack@eecs.umich.edunamespace ArmISA 366253Sgblack@eecs.umich.edu{ 376253Sgblack@eecs.umich.edustatic inline uint32_t 386253Sgblack@eecs.umich.edurotate_imm(uint32_t immValue, int rotateValue) 396253Sgblack@eecs.umich.edu{ 406253Sgblack@eecs.umich.edu return ((immValue >> (rotateValue & 31)) | 416253Sgblack@eecs.umich.edu (immValue << (32 - (rotateValue & 31)))); 426253Sgblack@eecs.umich.edu} 436253Sgblack@eecs.umich.edu 446253Sgblack@eecs.umich.edu/** 456253Sgblack@eecs.umich.edu * Base class for predicated integer operations. 466253Sgblack@eecs.umich.edu */ 476253Sgblack@eecs.umich.educlass PredOp : public ArmStaticInst 486253Sgblack@eecs.umich.edu{ 496253Sgblack@eecs.umich.edu protected: 506253Sgblack@eecs.umich.edu 516253Sgblack@eecs.umich.edu ConditionCode condCode; 526253Sgblack@eecs.umich.edu 536253Sgblack@eecs.umich.edu /// Constructor 546253Sgblack@eecs.umich.edu PredOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 556253Sgblack@eecs.umich.edu ArmStaticInst(mnem, _machInst, __opClass), 566253Sgblack@eecs.umich.edu condCode((ConditionCode)(unsigned)machInst.condCode) 576253Sgblack@eecs.umich.edu { 586253Sgblack@eecs.umich.edu } 596253Sgblack@eecs.umich.edu 606253Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 616253Sgblack@eecs.umich.edu}; 626253Sgblack@eecs.umich.edu 636253Sgblack@eecs.umich.edu/** 646253Sgblack@eecs.umich.edu * Base class for predicated immediate operations. 656253Sgblack@eecs.umich.edu */ 666253Sgblack@eecs.umich.educlass PredImmOp : public PredOp 676253Sgblack@eecs.umich.edu{ 686253Sgblack@eecs.umich.edu protected: 696253Sgblack@eecs.umich.edu 706253Sgblack@eecs.umich.edu uint32_t imm; 716253Sgblack@eecs.umich.edu uint32_t rotate; 726253Sgblack@eecs.umich.edu uint32_t rotated_imm; 736253Sgblack@eecs.umich.edu uint32_t rotated_carry; 746253Sgblack@eecs.umich.edu 756253Sgblack@eecs.umich.edu /// Constructor 766253Sgblack@eecs.umich.edu PredImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 776253Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 786253Sgblack@eecs.umich.edu imm(machInst.imm), rotate(machInst.rotate << 1), 796253Sgblack@eecs.umich.edu rotated_imm(0), rotated_carry(0) 806253Sgblack@eecs.umich.edu { 816253Sgblack@eecs.umich.edu rotated_imm = rotate_imm(imm, rotate); 826253Sgblack@eecs.umich.edu if (rotate != 0) 836253Sgblack@eecs.umich.edu rotated_carry = (rotated_imm >> 31) & 1; 846253Sgblack@eecs.umich.edu } 856253Sgblack@eecs.umich.edu 866253Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 876253Sgblack@eecs.umich.edu}; 886253Sgblack@eecs.umich.edu 896253Sgblack@eecs.umich.edu/** 906253Sgblack@eecs.umich.edu * Base class for predicated integer operations. 916253Sgblack@eecs.umich.edu */ 926253Sgblack@eecs.umich.educlass PredIntOp : public PredOp 936253Sgblack@eecs.umich.edu{ 946253Sgblack@eecs.umich.edu protected: 956253Sgblack@eecs.umich.edu 966253Sgblack@eecs.umich.edu uint32_t shift_size; 976253Sgblack@eecs.umich.edu uint32_t shift; 986253Sgblack@eecs.umich.edu 996253Sgblack@eecs.umich.edu /// Constructor 1006253Sgblack@eecs.umich.edu PredIntOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 1016253Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 1026253Sgblack@eecs.umich.edu shift_size(machInst.shiftSize), shift(machInst.shift) 1036253Sgblack@eecs.umich.edu { 1046253Sgblack@eecs.umich.edu } 1056253Sgblack@eecs.umich.edu 1066253Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 1076253Sgblack@eecs.umich.edu}; 1086253Sgblack@eecs.umich.edu 1096253Sgblack@eecs.umich.edu/** 1106253Sgblack@eecs.umich.edu * Base class for predicated macro-operations. 1116253Sgblack@eecs.umich.edu */ 1126253Sgblack@eecs.umich.educlass PredMacroOp : public PredOp 1136253Sgblack@eecs.umich.edu{ 1146253Sgblack@eecs.umich.edu protected: 1156253Sgblack@eecs.umich.edu 1166253Sgblack@eecs.umich.edu uint32_t numMicroops; 1176253Sgblack@eecs.umich.edu StaticInstPtr * microOps; 1186253Sgblack@eecs.umich.edu 1196253Sgblack@eecs.umich.edu /// Constructor 1206253Sgblack@eecs.umich.edu PredMacroOp(const char *mnem, MachInst _machInst, OpClass __opClass) : 1216253Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass), 1226253Sgblack@eecs.umich.edu numMicroops(0) 1236253Sgblack@eecs.umich.edu { 1246253Sgblack@eecs.umich.edu // We rely on the subclasses of this object to handle the 1256253Sgblack@eecs.umich.edu // initialization of the micro-operations, since they are 1266253Sgblack@eecs.umich.edu // all of variable length 1276253Sgblack@eecs.umich.edu flags[IsMacroop] = true; 1286253Sgblack@eecs.umich.edu } 1296253Sgblack@eecs.umich.edu 1306253Sgblack@eecs.umich.edu ~PredMacroOp() 1316253Sgblack@eecs.umich.edu { 1326253Sgblack@eecs.umich.edu if (numMicroops) 1336253Sgblack@eecs.umich.edu delete [] microOps; 1346253Sgblack@eecs.umich.edu } 1356253Sgblack@eecs.umich.edu 1366253Sgblack@eecs.umich.edu StaticInstPtr 1376253Sgblack@eecs.umich.edu fetchMicroop(MicroPC microPC) 1386253Sgblack@eecs.umich.edu { 1396253Sgblack@eecs.umich.edu assert(microPC < numMicroops); 1406253Sgblack@eecs.umich.edu return microOps[microPC]; 1416253Sgblack@eecs.umich.edu } 1426253Sgblack@eecs.umich.edu 1436253Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 1446253Sgblack@eecs.umich.edu}; 1456253Sgblack@eecs.umich.edu 1466253Sgblack@eecs.umich.edu/** 1476253Sgblack@eecs.umich.edu * Base class for predicated micro-operations. 1486253Sgblack@eecs.umich.edu */ 1496253Sgblack@eecs.umich.educlass PredMicroop : public PredOp 1506253Sgblack@eecs.umich.edu{ 1516253Sgblack@eecs.umich.edu /// Constructor 1526253Sgblack@eecs.umich.edu PredMicroop(const char *mnem, MachInst _machInst, OpClass __opClass) : 1536253Sgblack@eecs.umich.edu PredOp(mnem, _machInst, __opClass) 1546253Sgblack@eecs.umich.edu { 1556253Sgblack@eecs.umich.edu flags[IsMicroop] = true; 1566253Sgblack@eecs.umich.edu } 1576253Sgblack@eecs.umich.edu}; 1586253Sgblack@eecs.umich.edu} 1596253Sgblack@eecs.umich.edu 1606253Sgblack@eecs.umich.edu#endif //__ARCH_ARM_INSTS_PREDINST_HH__ 161