Define symbols for the x86 specialization of the microassembler.

--HG--
extra : convert_revision : 1fd66ba519d211fec18641b6df94b7640c56080c
This commit is contained in:
Gabe Black 2007-06-21 15:28:08 +00:00
parent 0dc15742e3
commit ae60d58083
2 changed files with 104 additions and 0 deletions

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@ -72,5 +72,33 @@ let {{
from micro_asm import MicroAssembler, Rom_Macroop, Rom from micro_asm import MicroAssembler, Rom_Macroop, Rom
mainRom = Rom('main ROM') mainRom = Rom('main ROM')
assembler = MicroAssembler(X86Macroop, microopClasses, mainRom, Rom_Macroop) assembler = MicroAssembler(X86Macroop, microopClasses, mainRom, Rom_Macroop)
# Add in symbols for the microcode registers
for num in range(15):
assembler.symbols["t%d" % num] = "NUM_INTREGS+%d" % num
# Add in symbols for the segment descriptor registers
for letter in ("C", "D", "E", "F", "G", "S"):
assembler.symbols["%ss" % letter.lower()] = "SEGMENT_REG_%sS" % letter
# Miscellaneous symbols
symbols = {
"reg" : "env.reg",
"regm" : "env.regm",
"imm" : "IMMEDIATE",
"disp" : "DISPLACEMENT",
"scale" : "env.scale",
"index" : "env.index",
"base" : "env.base",
"dsz" : "env.dataSize",
"osz" : "env.operandSize",
"ssz" : "env.stackSize"
}
assembler.symbols.update(symbols)
# Code literal which forces a default 64 bit operand size in 64 bit mode.
assembler.symbols["oszIn64Override"] = '''
if (machInst.mode.submode == SixtyFourBitMode &&
env.dataSize == 4)
env.dataSize = 8;
'''
macroopDict = assembler.assemble(microcode) macroopDict = assembler.assemble(microcode)
}}; }};

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@ -0,0 +1,76 @@
/*
* Copyright (c) 2007 The Hewlett-Packard Development Company
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* The software must be used only for Non-Commercial Use which means any
* use which is NOT directed to receiving any direct monetary
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* this list of conditions and the following disclaimer. Redistributions
* in binary form must reproduce the above copyright notice, this list of
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* the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission. No right of
* sublicense is granted herewith. Derivatives of the software and
* output created using the software may be prepared, but only for
* Non-Commercial Uses. Derivatives of the software may be shared with
* others provided: (i) the others agree to abide by the list of
* conditions herein which includes the Non-Commercial Use restrictions;
* and (ii) such Derivatives of the software include the above copyright
* notice to acknowledge the contribution from this software where
* applicable, this list of conditions and the disclaimer below.
*
* 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
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*
* Authors: Gabe Black
*/
#ifndef __ARCH_X86_SEGMENTREGS_HH__
#define __ARCH_X86_SEGMENTREGS_HH__
namespace X86ISA
{
enum SegmentRegIndex
{
SEGMENT_REG_ES,
SEGMENT_REG_CS,
SEGMENT_REG_SS,
SEGMENT_REG_DS,
SEGMENT_REG_FS,
SEGMENT_REG_GS,
NUM_SEGMENTREGS
};
};
#endif // __ARCH_X86_SEGMENTREGS_HH__