Define symbols for the x86 specialization of the microassembler.
--HG-- extra : convert_revision : 1fd66ba519d211fec18641b6df94b7640c56080c
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Gabe Black
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@ -72,5 +72,33 @@ let {{
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from micro_asm import MicroAssembler, Rom_Macroop, Rom
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mainRom = Rom('main ROM')
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assembler = MicroAssembler(X86Macroop, microopClasses, mainRom, Rom_Macroop)
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# Add in symbols for the microcode registers
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for num in range(15):
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assembler.symbols["t%d" % num] = "NUM_INTREGS+%d" % num
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# Add in symbols for the segment descriptor registers
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for letter in ("C", "D", "E", "F", "G", "S"):
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assembler.symbols["%ss" % letter.lower()] = "SEGMENT_REG_%sS" % letter
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# Miscellaneous symbols
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symbols = {
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"reg" : "env.reg",
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"regm" : "env.regm",
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"imm" : "IMMEDIATE",
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"disp" : "DISPLACEMENT",
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"scale" : "env.scale",
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"index" : "env.index",
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"base" : "env.base",
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"dsz" : "env.dataSize",
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"osz" : "env.operandSize",
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"ssz" : "env.stackSize"
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}
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assembler.symbols.update(symbols)
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# Code literal which forces a default 64 bit operand size in 64 bit mode.
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assembler.symbols["oszIn64Override"] = '''
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if (machInst.mode.submode == SixtyFourBitMode &&
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env.dataSize == 4)
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env.dataSize = 8;
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'''
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macroopDict = assembler.assemble(microcode)
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}};
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76
src/arch/x86/segmentregs.hh
Normal file
76
src/arch/x86/segmentregs.hh
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@ -0,0 +1,76 @@
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/*
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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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*/
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#ifndef __ARCH_X86_SEGMENTREGS_HH__
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#define __ARCH_X86_SEGMENTREGS_HH__
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namespace X86ISA
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{
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enum SegmentRegIndex
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{
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SEGMENT_REG_ES,
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SEGMENT_REG_CS,
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SEGMENT_REG_SS,
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SEGMENT_REG_DS,
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SEGMENT_REG_FS,
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SEGMENT_REG_GS,
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NUM_SEGMENTREGS
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};
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};
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#endif // __ARCH_X86_SEGMENTREGS_HH__
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