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// -*- mode:c++ -*-
// Copyright .AN) 2007 MIPS Technologies, Inc. All Rights Reserved
// This software is part of the M5 simulator.
// THIS IS A LEGAL AGREEMENT. BY DOWNLOADING, USING, COPYING, CREATING
// DERIVATIVE WORKS, AND/OR DISTRIBUTING THIS SOFTWARE YOU ARE AGREEING
// TO THESE TERMS AND CONDITIONS.
// Permission is granted to use, copy, create derivative works and
// distribute this software and such derivative works for any purpose,
// so long as (1) the copyright notice above, this grant of permission,
// and the disclaimer below appear in all copies and derivative works
// made, (2) the copyright notice above is augmented as appropriate to
// reflect the addition of any new copyrightable work in a derivative
// work (e.g., Copyright .AN) <Publication Year> Copyright Owner), and (3)
// the name of MIPS Technologies, Inc. ($B!H(BMIPS$B!I(B) is not used in any
// advertising or publicity pertaining to the use or distribution of
// this software without specific, written prior authorization.
// THIS SOFTWARE IS PROVIDED $B!H(BAS IS.$B!I(B MIPS MAKES NO WARRANTIES AND
// DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, STATUTORY, IMPLIED OR
// OTHERWISE, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
// NON-INFRINGEMENT OF THIRD PARTY RIGHTS, REGARDING THIS SOFTWARE.
// IN NO EVENT SHALL MIPS BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT,
// INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES OF
// ANY KIND OR NATURE, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT,
// THIS SOFTWARE AND/OR THE USE OF THIS SOFTWARE, WHETHER SUCH LIABILITY
// IS ASSERTED ON THE BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE OR
// STRICT LIABILITY), OR OTHERWISE, EVEN IF MIPS HAS BEEN WARNED OF THE
// POSSIBILITY OF ANY SUCH LOSS OR DAMAGE IN ADVANCE.
//Authors: Korey L. Sewell
////////////////////////////////////////////////////////////////////
//
// Base class for MIPS instructions, and some support functions
//
//Outputs to decoder.hh
output header {{
using namespace MipsISA;
/**
* Base class for all MIPS static instructions.
*/
class MipsStaticInst : public StaticInst
{
protected:
// Constructor
MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
: StaticInst(mnem, _machInst, __opClass)
{
}
/// Print a register name for disassembly given the unique
/// dependence tag number (FP or int).
void printReg(std::ostream &os, int reg) const;
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
}};
//Ouputs to decoder.cc
output decoder {{
void MipsStaticInst::printReg(std::ostream &os, int reg) const
{
if (reg < FP_Base_DepTag) {
ccprintf(os, "r%d", reg);
}
else {
ccprintf(os, "f%d", reg - FP_Base_DepTag);
}
}
std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
ccprintf(ss, "%-10s ", mnemonic);
// Need to find standard way to not print
// this info. Maybe add bool variable to
// class?
if (mnemonic != "syscall") {
if(_numDestRegs > 0){
printReg(ss, _destRegIdx[0]);
}
if(_numSrcRegs > 0) {
ss << ", ";
printReg(ss, _srcRegIdx[0]);
}
if(_numSrcRegs > 1) {
ss << ", ";
printReg(ss, _srcRegIdx[1]);
}
}
// Should we define a separate inst. class
// just for two insts?
if(mnemonic == "sll" || mnemonic == "sra"){
ccprintf(ss,", %d",SA);
}
return ss.str();
}
}};
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