basic.isa revision 12616:4b463b4dc098
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25081Sgblack@eecs.umich.edu
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45081Sgblack@eecs.umich.edu
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305081Sgblack@eecs.umich.edu//
315081Sgblack@eecs.umich.edu// Authors: Steve Reinhardt
325081Sgblack@eecs.umich.edu//          Korey Sewell
335081Sgblack@eecs.umich.edu
345081Sgblack@eecs.umich.edu// Basic instruction class declaration template.
355081Sgblack@eecs.umich.edudef template BasicDeclare {{
365081Sgblack@eecs.umich.edu        /**
375081Sgblack@eecs.umich.edu         * Static instruction class for "%(mnemonic)s".
385081Sgblack@eecs.umich.edu         */
395081Sgblack@eecs.umich.edu        class %(class_name)s : public %(base_class)s
405081Sgblack@eecs.umich.edu        {
415081Sgblack@eecs.umich.edu          public:
425081Sgblack@eecs.umich.edu                /// Constructor.
435081Sgblack@eecs.umich.edu                %(class_name)s(MachInst machInst);
445081Sgblack@eecs.umich.edu                Fault execute(ExecContext *,
455081Sgblack@eecs.umich.edu                              Trace::InstRecord *) const override;
465081Sgblack@eecs.umich.edu        };
475081Sgblack@eecs.umich.edu}};
485081Sgblack@eecs.umich.edu
495081Sgblack@eecs.umich.edu// Basic instruction class constructor template.
505081Sgblack@eecs.umich.edudef template BasicConstructor {{
515081Sgblack@eecs.umich.edu        %(class_name)s::%(class_name)s(MachInst machInst)  : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
525081Sgblack@eecs.umich.edu        {
535081Sgblack@eecs.umich.edu                %(constructor)s;
545081Sgblack@eecs.umich.edu        }
555081Sgblack@eecs.umich.edu}};
565081Sgblack@eecs.umich.edu
575081Sgblack@eecs.umich.edu
585081Sgblack@eecs.umich.edu// Basic instruction class execute method template.
595961Sgblack@eecs.umich.edudef template BasicExecute {{
605081Sgblack@eecs.umich.edu        Fault %(class_name)s::execute(
615081Sgblack@eecs.umich.edu            ExecContext *xc, Trace::InstRecord *traceData) const
625081Sgblack@eecs.umich.edu        {
635081Sgblack@eecs.umich.edu                Fault fault = NoFault;
645119Sgblack@eecs.umich.edu
655961Sgblack@eecs.umich.edu                %(fp_enable_check)s;
665081Sgblack@eecs.umich.edu                %(op_decl)s;
675081Sgblack@eecs.umich.edu                %(op_rd)s;
685081Sgblack@eecs.umich.edu                if(fault == NoFault)
695081Sgblack@eecs.umich.edu                {
705081Sgblack@eecs.umich.edu                  %(code)s;
715081Sgblack@eecs.umich.edu                  if(fault == NoFault){
725119Sgblack@eecs.umich.edu                    %(op_wb)s;
735961Sgblack@eecs.umich.edu                  }
745081Sgblack@eecs.umich.edu                }
755081Sgblack@eecs.umich.edu                return fault;
765081Sgblack@eecs.umich.edu        }
775081Sgblack@eecs.umich.edu}};
785081Sgblack@eecs.umich.edu
795961Sgblack@eecs.umich.edu// Basic decode template.
805081Sgblack@eecs.umich.edudef template BasicDecode {{
815081Sgblack@eecs.umich.edu        return new %(class_name)s(machInst);
825081Sgblack@eecs.umich.edu}};
835081Sgblack@eecs.umich.edu
845119Sgblack@eecs.umich.edu// Basic decode template, passing mnemonic in as string arg to constructor.
855961Sgblack@eecs.umich.edudef template BasicDecodeWithMnemonic {{
865081Sgblack@eecs.umich.edu        return new %(class_name)s("%(mnemonic)s", machInst);
875081Sgblack@eecs.umich.edu}};
885081Sgblack@eecs.umich.edu
895081Sgblack@eecs.umich.edu// The most basic instruction format...
905081Sgblack@eecs.umich.edudef format BasicOp(code, *flags) {{
915081Sgblack@eecs.umich.edu        iop = InstObjParams(name, Name, 'MipsStaticInst', code, flags)
925119Sgblack@eecs.umich.edu        header_output = BasicDeclare.subst(iop)
935961Sgblack@eecs.umich.edu        decoder_output = BasicConstructor.subst(iop)
945081Sgblack@eecs.umich.edu        decode_block = BasicDecode.subst(iop)
955081Sgblack@eecs.umich.edu        exec_output = BasicExecute.subst(iop)
965081Sgblack@eecs.umich.edu}};
975081Sgblack@eecs.umich.edu