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

// Copyright (c) 2010 Advanced Micro Devices, Inc.
// All rights reserved.
//
// The license below extends only to copyright in the software and shall
// not be construed as granting a license to any other intellectual
// property including but not limited to intellectual property relating
// to a hardware implementation of the functionality of the software
// licensed hereunder.  You may use the software subject to the license
// terms below provided that you ensure that this notice is replicated
// unmodified and in its entirety in all distributions of the software,
// modified or unmodified, in source code or in binary form.
//
// Redistribution and use in source and binary forms, with or without
// 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
// documentation and/or other materials provided with the distribution;
// 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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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

////////////////////////////////////////////////////////////////////
//
// "Format" which describes an instruction whose only purpose is to
// call a syscall in SE mode.
//

output header {{
    class NopInst : public X86ISA::X86StaticInst
    {
      public:
        static const RegIndex foldOBit = 0;
        /// Constructor
        NopInst(const char *_mnemonic, ExtMachInst _machInst,
                OpClass __opClass) :
            X86ISA::X86StaticInst(_mnemonic, _machInst, __opClass)
        {
        }

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

output decoder {{
    std::string NopInst::generateDisassembly(Addr PC,
            const loader::SymbolTable *symtab) const
    {
        std::stringstream response;

        printMnemonic(response, mnemonic);
        return response.str();
    }
}};

def template NopExecute {{
    Fault %(class_name)s::execute(ExecContext *xc,
            Trace::InstRecord *traceData) const
    {
        return NoFault;
    }
}};

def format NopInst(*opt_flags) {{
    iop = InstObjParams(name, Name, 'NopInst', "", opt_flags)
    header_output = BasicDeclare.subst(iop)
    decoder_output = BasicConstructor.subst(iop)
    decode_block = BasicDecode.subst(iop)
    exec_output = NopExecute.subst(iop)
}};