gem5/src/arch/x86/segmentregs.hh
Gabe Black dc6f960171 X86: Reorganize segmentation and implement segment selector movs.
--HG--
extra : convert_revision : 553c3ffeda1f5312cf02493f602e7d4ba2fe66e8
2007-12-01 23:03:39 -08:00

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3.8 KiB
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/*
* Copyright (c) 2007 The Hewlett-Packard Development Company
* All rights reserved.
*
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* others provided: (i) the others agree to abide by the list of
* conditions herein which includes the Non-Commercial Use restrictions;
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*
* 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
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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,
SEGMENT_REG_HS, // Temporary descriptor
SEGMENT_REG_TSL, // Local descriptor table
SEGMENT_REG_TSG, // Global descriptor table
SEGMENT_REG_LS, // Flat segment
SEGMENT_REG_MS, // Emulation memory
// These shouldn't be used directly in a load or store since they
// are likely accessed in other ways in a real machine. For instance,
// they may be loaded into the temporary segment register on demand.
SYS_SEGMENT_REG_TR,
SYS_SEGMENT_REG_IDTR,
NUM_SEGMENTREGS
};
};
#endif // __ARCH_X86_SEGMENTREGS_HH__