nop.isa revision 2022
1//////////////////////////////////////////////////////////////////// 2// 3// Noop instruction 4// 5 6output header {{ 7 /** 8 * Base class for integer operations. 9 */ 10 class Noop : public SparcStaticInst 11 { 12 protected: 13 14 /// Constructor 15 Noop(const char *mnem, MachInst _machInst, OpClass __opClass) : SparcStaticInst(mnem, _machInst, __opClass) 16 { 17 } 18 19 std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; 20 }; 21}}; 22 23output decoder {{ 24 std::string Noop::generateDisassembly(Addr pc, const SymbolTable *symtab) const 25 { 26 return "Disassembly of integer instruction\n"; 27 } 28}}; 29 30def template NoopExecute {{ 31 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const 32 { 33 //Nothing to see here, move along 34 return No_Fault; 35 } 36}}; 37 38// Primary format for integer operate instructions: 39def format Noop(code, *opt_flags) {{ 40 orig_code = code 41 cblk = CodeBlock(code) 42 iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags) 43 header_output = BasicDeclare.subst(iop) 44 decoder_output = BasicConstructor.subst(iop) 45 decode_block = BasicDecodeWithMnemonic.subst(iop) 46 exec_output = NoopExecute.subst(iop) 47}}; 48