gem5/arch/mips/isa/formats/noop.isa

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////////////////////////////////////////////////////////////////////
//
// Noop instruction
//
output header {{
/**
* Base class for integer operations.
*/
class Noop : public MipsStaticInst
{
protected:
/// Constructor
Noop(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
{
}
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
}};
output decoder {{
std::string Noop::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return "Disassembly of integer instruction\n";
}
}};
def template NoopExecute {{
Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
{
//Nothing to see here, move along
return No_Fault;
}
}};
// Primary format for integer operate instructions:
def format Noop(code, *opt_flags) {{
orig_code = code
cblk = CodeBlock(code)
iop = InstObjParams(name, Name, 'MipsStaticInst', cblk, opt_flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = BasicDecodeWithMnemonic.subst(iop)
exec_output = NoopExecute.subst(iop)
}};