| // Copyright (c) 2008 The Regents of The University of Michigan |
| // All rights reserved. |
| // |
| // 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 |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // 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 |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Authors: Gabe Black |
| |
| def template MicroRomConstructor {{ |
| |
| %(define_generators)s |
| const MicroPC X86ISA::MicrocodeRom::numMicroops = %(num_microops)s; |
| |
| X86ISA::MicrocodeRom::MicrocodeRom() |
| { |
| using namespace RomLabels; |
| genFuncs = new GenFunc[numMicroops]; |
| %(alloc_generators)s; |
| } |
| }}; |
| |
| let {{ |
| from micro_asm import Rom |
| |
| class X86MicrocodeRom(Rom): |
| def __init__(self, name): |
| super(X86MicrocodeRom, self).__init__(name) |
| self.directives = {} |
| |
| def add_microop(self, mnemonic, microop): |
| microop.mnemonic = mnemonic |
| microop.micropc = len(self.microops) |
| self.microops.append(microop) |
| |
| |
| def getDeclaration(self): |
| declareLabels = "namespace RomLabels {\n" |
| for (label, microop) in self.labels.items(): |
| declareLabels += "const static uint64_t label_%s = %d;\n" \ |
| % (label, microop.micropc) |
| for (label, microop) in self.externs.items(): |
| declareLabels += \ |
| "const static MicroPC extern_label_%s = %d;\n" \ |
| % (label, microop.micropc) |
| declareLabels += "}\n" |
| return declareLabels; |
| |
| def getDefinition(self): |
| numMicroops = len(self.microops) |
| allocGenerators = '' |
| micropc = 0 |
| define_generators = ''' |
| namespace |
| { |
| static const char romMnemonic[] = "Microcode_ROM"; |
| ''' |
| for op in self.microops: |
| define_generators += op.getGeneratorDef(micropc) |
| allocGenerators += "genFuncs[%d] = %s;\n" % \ |
| (micropc, op.getGenerator(micropc)) |
| micropc += 1 |
| define_generators += "}\n" |
| iop = InstObjParams(self.name, self.name, "MicrocodeRom", |
| {"code" : "", |
| "define_generators" : define_generators, |
| "num_microops" : numMicroops, |
| "alloc_generators" : allocGenerators |
| }) |
| return MicroRomConstructor.subst(iop); |
| }}; |