gem5/arch/mips/isa/formats/int.isa

////////////////////////////////////////////////////////////////////
//
// Integer operate instructions
//

output header {{
        /**
         * Base class for integer operations.
         */
        class IntOp : public MipsStaticInst
        {
                protected:

                /// Constructor
                IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
                                MipsStaticInst(mnem, _machInst, __opClass)
                {
                }

                std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
        };

        class IntImmOp : public MipsStaticInst
        {
                protected:
                uint16_t imm;

                /// Constructor
                IntegerOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
                                MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM)
                {
                }

                std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
        };

}};

output decoder {{
        std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
        {
                return "Disassembly of integer instruction\n";
        }

        std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
        {
                return "Disassembly of integer immediate instruction\n";
        }
}};

// Primary format for integer operate instructions:
def format IntOp(code, *opt_flags) {{
        orig_code = code
        cblk = CodeBlock(code)

        //Figure out if we are creating a IntImmOp or a IntOp
        strlen = len(name)
        if ( name[strlen-1] = 'i' or ( name[strlen-2:] = 'iu'))
                iop = InstObjParams(name, Name, 'IntOp', cblk, opt_flags)
        else:
                iop = InstObjParams(name, Name, 'IntImmOp', cblk, opt_flags)

        header_output = BasicDeclare.subst(iop)
        decoder_output = BasicConstructor.subst(iop)
        decode_block = OperateNopCheckDecode.subst(iop)
        exec_output = BasicExecute.subst(iop)
}};