xref: /gem5/src/arch/mips/isa/formats/tlbop.isa

// -*- mode:c++ -*-

// Copyright (c) 2007 MIPS Technologies, Inc.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
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// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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//
// Authors: Korey Sewell

////////////////////////////////////////////////////////////////////
//
// TlbOp instructions
//

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

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

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

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

def template TlbOpExecute {{
        Fault %(class_name)s::execute(
            ExecContext *xc, Trace::InstRecord *traceData) const
        {
                //Write the resulting state to the execution context
                %(op_wb)s;

                //Call into the trap handler with the appropriate fault
                return No_Fault;
        }
}};

// Primary format for integer operate instructions:
def format TlbOp(code, *opt_flags) {{
        orig_code = code
        cblk = 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 = TlbOpExecute.subst(iop)
}};