diff options
Diffstat (limited to 'arch/mips/isa/base.isa')
| -rw-r--r-- | arch/mips/isa/base.isa | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/mips/isa/base.isa b/arch/mips/isa/base.isa new file mode 100644 index 000000000..db37cf49c --- /dev/null +++ b/arch/mips/isa/base.isa @@ -0,0 +1,63 @@ +// -*- mode:c++ -*- + +//////////////////////////////////////////////////////////////////// +// +// Base class for MIPS instructions, and some support functions +// + +//Outputs to decoder.hh +output header {{ + /** + * Base class for all SPARC static instructions. + */ + class MipsStaticInst : public StaticInst<MIPSISA> + { + protected: + + // Constructor. + MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass) + : StaticInst<MIPSISA>(mnem, _machInst, __opClass) + { + } + + std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; + }; + +}}; + +//Ouputs to decoder.cc +output decoder {{ + + std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const + { + std::stringstream ss; + + ccprintf(ss, "%-10s ", mnemonic); + + // just print the first two source regs... if there's + // a third one, it's a read-modify-write dest (Rc), + // e.g. for CMOVxx + if(_numSrcRegs > 0) + { + printReg(ss, _srcRegIdx[0]); + } + if(_numSrcRegs > 1) + { + ss << ","; + printReg(ss, _srcRegIdx[1]); + } + + // just print the first dest... if there's a second one, + // it's generally implicit + if(_numDestRegs > 0) + { + if(_numSrcRegs > 0) + ss << ","; + printReg(ss, _destRegIdx[0]); + } + + return ss.str(); + } + +}}; + |