54b47bc5ae
arch/mips/faults.hh:
remove nonsense
arch/mips/isa/base.isa:
define R31
arch/mips/isa/bitfields.isa:
forgotten bitfields
arch/mips/isa/decoder.isa:
INT64 -> int64_t
arch/mips/isa/formats.isa:
fix comments
arch/mips/isa/formats/branch.isa:
Branch -> BranchLikely
RB -> RT
arch/mips/isa/formats/fp.isa:
Make FP ops generates
arch/mips/isa/formats/mem.isa:
RA,RB -> RS,RT
arch/mips/isa/formats/noop.isa:
Rc -> Rd
arch/mips/isa/formats/util.isa:
forgot brace and semicolon
arch/mips/isa/includes.isa:
remove unnecessary files
arch/mips/isa_traits.hh:
spacing
cpu/static_inst.hh:
add cond_delay_slot flag
--HG--
extra : convert_revision : 3bc7353b437f9a764e85cc462bed86c9d654eb37
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
// -*- mode:c++ -*-
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////////////////////////////////////////////////////////////////////
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//
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// Base class for MIPS instructions, and some support functions
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//
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//Outputs to decoder.hh
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output header {{
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#define R31 31
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/**
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* Base class for all MIPS static instructions.
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*/
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class MipsStaticInst : public StaticInst
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{
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protected:
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/// Make MipsISA register dependence tags directly visible in
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/// this class and derived classes. Maybe these should really
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/// live here and not in the MipsISA namespace.
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enum DependenceTags {
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FP_Base_DepTag = MipsISA::FP_Base_DepTag,
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Fpcr_DepTag = MipsISA::Fpcr_DepTag,
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Uniq_DepTag = MipsISA::Uniq_DepTag,
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IPR_Base_DepTag = MipsISA::IPR_Base_DepTag
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};
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// Constructor
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MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
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: StaticInst(mnem, _machInst, __opClass)
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{
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}
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/// Print a register name for disassembly given the unique
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/// dependence tag number (FP or int).
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void printReg(std::ostream &os, int reg) const;
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std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
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};
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}};
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//Ouputs to decoder.cc
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output decoder {{
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void MipsStaticInst::printReg(std::ostream &os, int reg) const
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{
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if (reg < FP_Base_DepTag) {
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ccprintf(os, "r%d", reg);
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}
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else {
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ccprintf(os, "f%d", reg - FP_Base_DepTag);
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}
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}
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std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
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{
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std::stringstream ss;
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ccprintf(ss, "%-10s ", mnemonic);
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// just print the first two source regs... if there's
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// a third one, it's a read-modify-write dest (Rc),
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// e.g. for CMOVxx
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if(_numSrcRegs > 0)
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{
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printReg(ss, _srcRegIdx[0]);
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}
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if(_numSrcRegs > 1)
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{
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ss << ",";
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printReg(ss, _srcRegIdx[1]);
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}
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// just print the first dest... if there's a second one,
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// it's generally implicit
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if(_numDestRegs > 0)
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{
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if(_numSrcRegs > 0)
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ss << ",";
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printReg(ss, _destRegIdx[0]);
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}
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return ss.str();
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}
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}};
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