2007-04-03 17:01:09 +02:00
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// -*- mode:c++ -*-
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// Copyright (c) 2007 The Hewlett-Packard Development Company
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// All rights reserved.
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//
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// Redistribution and use of this software in source and binary forms,
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// with or without modification, are permitted provided that the
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// following conditions are met:
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//
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// The software must be used only for Non-Commercial Use which means any
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// use which is NOT directed to receiving any direct monetary
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// compensation for, or commercial advantage from such use. Illustrative
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// examples of non-commercial use are academic research, personal study,
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// teaching, education and corporate research & development.
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// Illustrative examples of commercial use are distributing products for
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// commercial advantage and providing services using the software for
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// commercial advantage.
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//
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// If you wish to use this software or functionality therein that may be
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// covered by patents for commercial use, please contact:
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// Director of Intellectual Property Licensing
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// Office of Strategy and Technology
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// Hewlett-Packard Company
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// 1501 Page Mill Road
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// Palo Alto, California 94304
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//
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// Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer. Redistributions
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// in binary form must reproduce the above copyright notice, this list of
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// conditions and the following disclaimer in the documentation and/or
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// other materials provided with the distribution. Neither the name of
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// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, 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. No right of
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// sublicense is granted herewith. Derivatives of the software and
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// output created using the software may be prepared, but only for
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// Non-Commercial Uses. Derivatives of the software may be shared with
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// others provided: (i) the others agree to abide by the list of
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// conditions herein which includes the Non-Commercial Use restrictions;
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// and (ii) such Derivatives of the software include the above copyright
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// notice to acknowledge the contribution from this software where
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// applicable, this list of conditions and the disclaimer below.
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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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2007-04-06 18:00:56 +02:00
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// Execute method for macroops.
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def template MacroExecPanic {{
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Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const
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{
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panic("Tried to execute macroop directly!");
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M5_DUMMY_RETURN
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}
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}};
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2007-04-03 17:01:09 +02:00
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output header {{
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// Base class for most macroops, except ones that need to commit as
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// they go.
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2007-04-06 18:00:56 +02:00
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class X86MacroInst : public StaticInst
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2007-04-03 17:01:09 +02:00
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{
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protected:
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const uint32_t numMicroOps;
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//Constructor.
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X86MacroInst(const char *mnem, ExtMachInst _machInst,
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uint32_t _numMicroOps)
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: StaticInst(mnem, _machInst, No_OpClass),
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numMicroOps(_numMicroOps)
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{
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assert(numMicroOps);
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microOps = new StaticInstPtr[numMicroOps];
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flags[IsMacroOp] = true;
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}
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~X86MacroInst()
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{
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delete [] microOps;
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}
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StaticInstPtr * microOps;
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StaticInstPtr fetchMicroOp(MicroPC microPC)
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{
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assert(microPC < numMicroOps);
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return microOps[microPC];
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}
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2007-04-06 18:00:56 +02:00
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%(MacroExecPanic)s
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};
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}};
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// Basic instruction class constructor template.
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def template MacroConstructor {{
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inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
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: %(base_class)s("%(mnemonic)s", machInst, %(num_micro_ops)s)
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{
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%(constructor)s;
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//alloc_micro_ops is the code that sets up the microOps
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2007-04-06 17:15:36 +02:00
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//array in the parent class.
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2007-04-03 17:01:09 +02:00
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%(alloc_micro_ops)s;
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}
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}};
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let {{
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def genMacroOp(name, Name, opSeq):
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baseClass = 'X86MacroInst'
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numMicroOps = len(opSeq.ops)
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allocMicroOps = ''
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micropc = 0
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2007-04-06 17:15:36 +02:00
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for op in opSeq.ops:
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allocMicroOps += \
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"microOps[%d] = %s;\n" % \
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(micropc, op.getAllocator(True, op.delayed,
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micropc == 0,
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micropc == numMicroOps - 1))
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micropc += 1
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2007-04-03 17:01:09 +02:00
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iop = InstObjParams(name, Name, baseClass,
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{'code' : '', 'num_micro_ops' : numMicroOps,
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'alloc_micro_ops' : allocMicroOps})
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header_output = BasicDeclare.subst(iop)
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decoder_output = MacroConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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exec_output = ''
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return (header_output, decoder_output, decode_block, exec_output)
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}};
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