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// 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);
}};
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