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Diffstat (limited to 'src/arch/power/insts/integer.cc')
-rw-r--r-- | src/arch/power/insts/integer.cc | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/arch/power/insts/integer.cc b/src/arch/power/insts/integer.cc new file mode 100644 index 000000000..1f81a15dc --- /dev/null +++ b/src/arch/power/insts/integer.cc @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2009 The University of Edinburgh + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Timothy M. Jones + */ + +#include "arch/power/insts/integer.hh" + +using namespace std; +using namespace PowerISA; + +string +IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + bool printDest = true; + bool printSrcs = true; + bool printSecondSrc = true; + + // Generate the correct mnemonic + string myMnemonic(mnemonic); + + // Special cases + if (!myMnemonic.compare("or") && _srcRegIdx[0] == _srcRegIdx[1]) { + myMnemonic = "mr"; + printSecondSrc = false; + } else if (!myMnemonic.compare("mtlr") || !myMnemonic.compare("cmpi")) { + printDest = false; + } else if (!myMnemonic.compare("mflr")) { + printSrcs = false; + } + + // Additional characters depending on isa bits being set + if (oeSet) myMnemonic = myMnemonic + "o"; + if (rcSet) myMnemonic = myMnemonic + "."; + ccprintf(ss, "%-10s ", myMnemonic); + + // Print the first destination only + if (_numDestRegs > 0 && printDest) { + printReg(ss, _destRegIdx[0]); + } + + // Print the (possibly) two source registers + if (_numSrcRegs > 0 && printSrcs) { + if (_numDestRegs > 0 && printDest) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + if (_numSrcRegs > 1 && printSecondSrc) { + ss << ", "; + printReg(ss, _srcRegIdx[1]); + } + } + + return ss.str(); +} + + +string +IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + // Generate the correct mnemonic + string myMnemonic(mnemonic); + + // Special cases + if (!myMnemonic.compare("addi") && _numSrcRegs == 0) { + myMnemonic = "li"; + } else if (!myMnemonic.compare("addis") && _numSrcRegs == 0) { + myMnemonic = "lis"; + } + ccprintf(ss, "%-10s ", myMnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the immediate value last + ss << ", " << (int32_t)imm; + + return ss.str(); +} + + +string +IntShiftOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the first source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the shift + ss << ", " << sh; + + return ss.str(); +} + + +string +IntRotateOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // Print the first destination only + if (_numDestRegs > 0) { + printReg(ss, _destRegIdx[0]); + } + + // Print the first source register + if (_numSrcRegs > 0) { + if (_numDestRegs > 0) { + ss << ", "; + } + printReg(ss, _srcRegIdx[0]); + } + + // Print the shift, mask begin and mask end + ss << ", " << sh << ", " << mb << ", " << me; + + return ss.str(); +} |