| 1 | /* $Id: DisasmInternal-x86-amd64.h 103717 2024-03-06 21:36:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox disassembler - Internal header.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #ifndef VBOX_INCLUDED_SRC_DisasmInternal_x86_amd64_h
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| 29 | #define VBOX_INCLUDED_SRC_DisasmInternal_x86_amd64_h
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| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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| 33 |
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| 34 | #include <VBox/types.h>
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| 35 | #include <VBox/err.h>
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| 36 | #include <VBox/dis.h>
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| 37 | #include <VBox/log.h>
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| 38 |
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| 39 | #include <iprt/param.h>
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| 40 | #include "DisasmInternal.h"
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| 41 |
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| 42 |
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| 43 | /** @addtogroup grp_dis_int Internals.
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| 44 | * @ingroup grp_dis
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| 45 | * @{
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| 46 | */
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| 47 |
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| 48 | /** @name Index into g_apfnCalcSize and g_apfnFullDisasm.
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| 49 | * @{ */
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| 50 | enum IDX_Parse
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| 51 | {
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| 52 | IDX_ParseNop = 0,
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| 53 | IDX_ParseModRM,
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| 54 | IDX_UseModRM,
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| 55 | IDX_ParseImmByte,
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| 56 | IDX_ParseImmBRel,
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| 57 | IDX_ParseImmUshort,
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| 58 | IDX_ParseImmV,
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| 59 | IDX_ParseImmVRel,
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| 60 | IDX_ParseImmAddr,
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| 61 | IDX_ParseFixedReg,
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| 62 | IDX_ParseImmUlong,
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| 63 | IDX_ParseImmQword,
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| 64 | IDX_ParseTwoByteEsc,
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| 65 | IDX_ParseGrp1,
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| 66 | IDX_ParseShiftGrp2,
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| 67 | IDX_ParseGrp3,
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| 68 | IDX_ParseGrp4,
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| 69 | IDX_ParseGrp5,
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| 70 | IDX_Parse3DNow,
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| 71 | IDX_ParseGrp6,
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| 72 | IDX_ParseGrp7,
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| 73 | IDX_ParseGrp8,
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| 74 | IDX_ParseGrp9,
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| 75 | IDX_ParseGrp10,
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| 76 | IDX_ParseGrp12,
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| 77 | IDX_ParseVGrp12,
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| 78 | IDX_ParseGrp13,
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| 79 | IDX_ParseVGrp13,
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| 80 | IDX_ParseGrp14,
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| 81 | IDX_ParseVGrp14,
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| 82 | IDX_ParseGrp15,
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| 83 | IDX_ParseVGrp15,
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| 84 | IDX_ParseGrp16,
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| 85 | IDX_ParseVGrp17,
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| 86 | IDX_ParseModFence,
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| 87 | IDX_ParseYv,
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| 88 | IDX_ParseYb,
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| 89 | IDX_ParseXv,
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| 90 | IDX_ParseXb,
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| 91 | IDX_ParseEscFP,
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| 92 | IDX_ParseNopPause,
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| 93 | IDX_ParseImmByteSX,
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| 94 | IDX_ParseImmZ,
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| 95 | IDX_ParseThreeByteEsc4,
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| 96 | IDX_ParseThreeByteEsc5,
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| 97 | IDX_ParseImmAddrF,
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| 98 | IDX_ParseInvOpModRM,
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| 99 | IDX_ParseVex2b,
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| 100 | IDX_ParseVex3b,
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| 101 | IDX_ParseVexDest,
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| 102 | IDX_ParseMax
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| 103 | };
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| 104 | AssertCompile(IDX_ParseMax < 64 /* Packed DISOPCODE assumption. */);
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| 105 | /** @} */
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| 106 |
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| 107 | /**
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| 108 | * Opcode map descriptor.
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| 109 | *
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| 110 | * This is used a number of places to save storage space where there are lots of
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| 111 | * invalid instructions and the beginning or end of the map.
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| 112 | */
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| 113 | typedef struct DISOPMAPDESC
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| 114 | {
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| 115 | /** Pointer to the opcodes described by this structure. */
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| 116 | PCDISOPCODE papOpcodes;
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| 117 | #if ARCH_BITS <= 32
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| 118 | uint16_t
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| 119 | #else
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| 120 | uint32_t
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| 121 | #endif
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| 122 | /** The map index corresponding to the first papOpcodes entry. */
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| 123 | idxFirst,
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| 124 | /** Number of opcodes in the map. */
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| 125 | cOpcodes;
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| 126 | } DISOPMAPDESC;
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| 127 | /** Pointer to a const opcode map descriptor. */
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| 128 | typedef DISOPMAPDESC const *PCDISOPMAPDESC;
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| 129 |
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| 130 | /** @name Opcode maps.
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| 131 | * @{ */
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| 132 | extern const DISOPCODE g_InvalidOpcode[1];
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| 133 |
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| 134 | extern const DISOPCODE g_aOneByteMapX86[256];
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| 135 | extern const DISOPCODE g_aOneByteMapX64[256];
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| 136 | extern const DISOPCODE g_aTwoByteMapX86[256];
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| 137 | extern const DISOPCODE g_OpcodeLES;
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| 138 | extern const DISOPCODE g_OpcodeLDS;
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| 139 |
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| 140 | /** Two byte opcode map with prefix 0x66 */
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| 141 | extern const DISOPCODE g_aTwoByteMapX86_PF66[256];
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| 142 |
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| 143 | /** Two byte opcode map with prefix 0xF2 */
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| 144 | extern const DISOPCODE g_aTwoByteMapX86_PFF2[256];
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| 145 |
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| 146 | /** Two byte opcode map with prefix 0xF3 */
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| 147 | extern const DISOPCODE g_aTwoByteMapX86_PFF3[256];
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| 148 |
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| 149 | /** Three byte opcode map (0xF 0x38) */
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| 150 | extern PCDISOPCODE const g_apThreeByteMapX86_0F38[16];
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| 151 |
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| 152 | /** Three byte opcode map with prefix 0x66 (0xF 0x38) */
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| 153 | extern PCDISOPCODE const g_apThreeByteMapX86_660F38[16];
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| 154 |
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| 155 | /** Three byte opcode map with prefix 0xF2 (0xF 0x38) */
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| 156 | extern PCDISOPCODE const g_apThreeByteMapX86_F20F38[16];
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| 157 |
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| 158 | /** Three byte opcode map with prefix 0xF3 (0xF 0x38) */
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| 159 | extern PCDISOPCODE const g_apThreeByteMapX86_F30F38[16];
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| 160 |
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| 161 | extern PCDISOPCODE const g_apThreeByteMapX86_0F3A[16];
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| 162 |
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| 163 | /** Three byte opcode map with prefix 0x66 (0xF 0x3A) */
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| 164 | extern PCDISOPCODE const g_apThreeByteMapX86_660F3A[16];
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| 165 |
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| 166 | /** Three byte opcode map with prefixes 0x66 0xF2 (0xF 0x38) */
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| 167 | extern PCDISOPCODE const g_apThreeByteMapX86_66F20F38[16];
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| 168 |
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| 169 | /** VEX opcodes table defined by [VEX.m-mmmm - 1].
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| 170 | * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 00b */
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| 171 | extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_None[3];
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| 172 |
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| 173 | /** VEX opcodes table defined by [VEX.m-mmmm - 1].
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| 174 | * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 01b (66h) */
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| 175 | extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_66H[3];
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| 176 |
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| 177 | /** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 10b (F3h) */
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| 178 | extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_F3H[3];
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| 179 |
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| 180 | /** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 11b (F2h) */
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| 181 | extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_F2H[3];
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| 182 |
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| 183 | /** Two dimmentional map descriptor array: first index is by VEX.pp (prefix),
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| 184 | * second by the VEX.mmmm (map).
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| 185 | * The latter has to be bounced checked as we only have the first 4 maps. */
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| 186 | extern PCDISOPMAPDESC const g_aapVexOpcodesMapRanges[4][4];
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| 187 | /** @} */
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| 188 |
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| 189 | /** @name Opcode extensions (Group tables)
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| 190 | * @{ */
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| 191 | extern const DISOPCODE g_aMapX86_Group1[8*4];
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| 192 | extern const DISOPCODE g_aMapX86_Group2[8*6];
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| 193 | extern const DISOPCODE g_aMapX86_Group3[8*2];
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| 194 | extern const DISOPCODE g_aMapX86_Group4[8];
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| 195 | extern const DISOPCODE g_aMapX86_Group5[8];
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| 196 | extern const DISOPCODE g_aMapX86_Group6[8];
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| 197 | extern const DISOPCODE g_aMapX86_Group7_mem[8];
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| 198 | extern const DISOPCODE g_aMapX86_Group7_mod11_reg000[8];
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| 199 | extern const DISOPCODE g_aMapX86_Group7_mod11_reg001[8];
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| 200 | extern const DISOPCODE g_aMapX86_Group7_mod11_reg010[8];
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| 201 | extern const DISOPCODE g_aMapX86_Group7_mod11_reg111[8];
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| 202 | extern const DISOPCODE g_aMapX86_Group8[8];
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| 203 | extern const DISOPCODE g_aMapX86_Group9_mem_none[8*2];
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| 204 | extern const DISOPCODE g_aMapX86_Group9_mem_66[8];
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| 205 | extern const DISOPCODE g_aMapX86_Group9_mem_f3[8];
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| 206 | extern const DISOPCODE g_aMapX86_Group9_mod11_none[8];
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| 207 | extern const DISOPCODE g_aMapX86_Group9_mod11_f3[8];
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| 208 | extern const DISOPCODE g_aMapX86_Group10[8];
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| 209 | extern const DISOPCODE g_aMapX86_Group11[8*2];
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| 210 | extern const DISOPCODE g_aMapX86_Group12[8*2];
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| 211 | extern const DISOPCODE g_aMapX86_VGroup12[8];
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| 212 | extern const DISOPCODE g_aMapX86_Group13[8*2];
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| 213 | extern const DISOPCODE g_aMapX86_VGroup13[8];
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| 214 | extern const DISOPCODE g_aMapX86_Group14[8*2];
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| 215 | extern const DISOPCODE g_aMapX86_VGroup14[8];
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| 216 | extern const DISOPCODE g_aMapX86_Group15_mem[8];
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| 217 | extern const DISOPCODE g_aMapX86_Group15_mod11[8*2];
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| 218 | extern const DISOPCODE g_aMapX86_VGroup15[8];
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| 219 | extern const DISOPCODE g_aMapX86_Group16[8];
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| 220 | extern const DISOPCODE g_aMapX86_VGroup17[8*2];
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| 221 | extern const DISOPCODE g_aMapX86_NopPause[2];
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| 222 | /** @} */
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| 223 |
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| 224 | /** 3DNow! map (0x0F 0x0F prefix) */
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| 225 | extern const DISOPCODE g_aTwoByteMapX86_3DNow[256];
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| 226 |
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| 227 | /** Floating point opcodes starting with escape byte 0xDF
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| 228 | * @{ */
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| 229 | extern const DISOPCODE g_aMapX86_EscF0_Low[8];
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| 230 | extern const DISOPCODE g_aMapX86_EscF0_High[16*4];
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| 231 | extern const DISOPCODE g_aMapX86_EscF1_Low[8];
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| 232 | extern const DISOPCODE g_aMapX86_EscF1_High[16*4];
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| 233 | extern const DISOPCODE g_aMapX86_EscF2_Low[8];
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| 234 | extern const DISOPCODE g_aMapX86_EscF2_High[16*4];
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| 235 | extern const DISOPCODE g_aMapX86_EscF3_Low[8];
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| 236 | extern const DISOPCODE g_aMapX86_EscF3_High[16*4];
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| 237 | extern const DISOPCODE g_aMapX86_EscF4_Low[8];
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| 238 | extern const DISOPCODE g_aMapX86_EscF4_High[16*4];
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| 239 | extern const DISOPCODE g_aMapX86_EscF5_Low[8];
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| 240 | extern const DISOPCODE g_aMapX86_EscF5_High[16*4];
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| 241 | extern const DISOPCODE g_aMapX86_EscF6_Low[8];
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| 242 | extern const DISOPCODE g_aMapX86_EscF6_High[16*4];
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| 243 | extern const DISOPCODE g_aMapX86_EscF7_Low[8];
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| 244 | extern const DISOPCODE g_aMapX86_EscF7_High[16*4];
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| 245 |
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| 246 | extern const PCDISOPCODE g_apMapX86_FP_Low[8];
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| 247 | extern const PCDISOPCODE g_apMapX86_FP_High[8];
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| 248 | /** @} */
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| 249 |
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| 250 |
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| 251 | /** @} */
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| 252 | #endif /* !VBOX_INCLUDED_SRC_DisasmInternal_x86_amd64_h */
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| 253 |
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