diff options
Diffstat (limited to 'src/arch/sparc/insts/branch.cc')
-rw-r--r-- | src/arch/sparc/insts/branch.cc | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/arch/sparc/insts/branch.cc b/src/arch/sparc/insts/branch.cc new file mode 100644 index 000000000..a49fd8c5c --- /dev/null +++ b/src/arch/sparc/insts/branch.cc @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2006-2007 The Regents of The University of Michigan + * 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: Gabe Black + * Steve Reinhardt + */ + +#include "arch/sparc/insts/branch.hh" + +//////////////////////////////////////////////////////////////////// +// +// Branch instructions +// + +namespace SparcISA +{ + +template class BranchNBits<19>; +template class BranchNBits<22>; +template class BranchNBits<30>; + +std::string +Branch::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream response; + + printMnemonic(response, mnemonic); + printRegArray(response, _srcRegIdx, _numSrcRegs); + if (_numDestRegs && _numSrcRegs) + response << ", "; + printDestReg(response, 0); + + return response.str(); +} + +std::string +BranchImm13::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream response; + + printMnemonic(response, mnemonic); + printRegArray(response, _srcRegIdx, _numSrcRegs); + if (_numSrcRegs > 0) + response << ", "; + ccprintf(response, "0x%x", imm); + if (_numDestRegs > 0) + response << ", "; + printDestReg(response, 0); + + return response.str(); +} + +std::string +BranchDisp::generateDisassembly(Addr pc, const SymbolTable *symtab) const +{ + std::stringstream response; + std::string symbol; + Addr symbol_addr; + + Addr target = disp + pc; + + printMnemonic(response, mnemonic); + ccprintf(response, "0x%x", target); + + if (symtab && symtab->findNearestSymbol(target, symbol, symbol_addr)) { + ccprintf(response, " <%s", symbol); + if (symbol_addr != target) + ccprintf(response, "+%d>", target - symbol_addr); + else + ccprintf(response, ">"); + } + + return response.str(); +} + +} |