3878895264
src/arch/sparc/isa/formats/nop.isa:
Fix nop header so we can compile with multiple CPU models.
(Former code re-defined Nop object for each model.)
--HG--
extra : convert_revision : 04e92622edf4dfefd9e149a17f604e17a93707c9
98 lines
3.6 KiB
Text
98 lines
3.6 KiB
Text
// Copyright (c) 2006 The Regents of The University of Michigan
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met: redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer;
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// redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution;
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// neither the name of the copyright holders nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Authors: Gabe Black
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// Steve Reinhardt
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////////////////////////////////////////////////////////////////////
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//
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// Nop instruction
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//
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// Per-cpu-model nop execute method.
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def template NopExec {{
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Fault execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
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{
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// Nothing to see here, move along
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return NoFault;
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}
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}};
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output header {{
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/**
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* Nop class.
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*/
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class Nop : public SparcStaticInst
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{
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public:
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// Constructor
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Nop(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
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SparcStaticInst(mnem, _machInst, __opClass)
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{
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}
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// All Nop instructions do the same thing, so this can be
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// defined here. Nops can be defined directly, so there
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// needs to be a default implementation. Interpolate via
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// template so i gets expanded to a set of
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// cpu-model-specific functions.
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%(NopExec)s
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std::string generateDisassembly(Addr pc,
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const SymbolTable *symtab) const;
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};
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}};
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output decoder {{
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std::string Nop::generateDisassembly(Addr pc,
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const SymbolTable *symtab) const
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{
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std::stringstream response;
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printMnemonic(response, mnemonic);
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return response.str();
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}
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}};
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def template NopExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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//Nothing to see here, move along
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return NoFault;
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}
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}};
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// Primary format for integer operate instructions:
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def format Nop(code, *opt_flags) {{
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orig_code = code
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cblk = CodeBlock(code)
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iop = InstObjParams(name, Name, 'Nop', cblk, opt_flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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exec_output = NopExecute.subst(iop)
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}};
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