90 lines
3.8 KiB
Text
90 lines
3.8 KiB
Text
// Copyright (c) 2008 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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def template MicroRomConstructor {{
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%(define_generators)s
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const MicroPC X86ISA::MicrocodeRom::numMicroops = %(num_microops)s;
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X86ISA::MicrocodeRom::MicrocodeRom()
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{
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using namespace RomLabels;
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genFuncs = new GenFunc[numMicroops];
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%(alloc_generators)s;
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}
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}};
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let {{
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from micro_asm import Rom
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class X86MicrocodeRom(Rom):
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def __init__(self, name):
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super(X86MicrocodeRom, self).__init__(name)
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self.directives = {}
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def add_microop(self, mnemonic, microop):
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microop.mnemonic = mnemonic
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microop.micropc = len(self.microops)
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self.microops.append(microop)
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def getDeclaration(self):
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declareLabels = "namespace RomLabels {\n"
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for (label, microop) in self.labels.items():
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declareLabels += "const static uint64_t label_%s = %d;\n" \
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% (label, microop.micropc)
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for (label, microop) in self.externs.items():
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declareLabels += \
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"const static MicroPC extern_label_%s = %d;\n" \
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% (label, microop.micropc)
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declareLabels += "}\n"
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return declareLabels;
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def getDefinition(self):
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numMicroops = len(self.microops)
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allocGenerators = ''
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micropc = 0
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define_generators = '''
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namespace
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{
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static const char romMnemonic[] = "Microcode_ROM";
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'''
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for op in self.microops:
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define_generators += op.getGeneratorDef(micropc)
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allocGenerators += "genFuncs[%d] = %s;\n" % \
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(micropc, op.getGenerator(micropc))
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micropc += 1
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define_generators += "}\n"
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iop = InstObjParams(self.name, self.name, "MicrocodeRom",
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{"code" : "",
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"define_generators" : define_generators,
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"num_microops" : numMicroops,
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"alloc_generators" : allocGenerators
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})
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return MicroRomConstructor.subst(iop);
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}};
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