VirtualBox

source: vbox/trunk/src/VBox/Disassembler/DisasmInternal.h@ 93902

Last change on this file since 93902 was 93115, checked in by vboxsync, 3 years ago

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1/* $Id: DisasmInternal.h 93115 2022-01-01 11:31:46Z vboxsync $ */
2/** @file
3 * VBox disassembler - Internal header.
4 */
5
6/*
7 * Copyright (C) 2006-2022 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef VBOX_INCLUDED_SRC_DisasmInternal_h
19#define VBOX_INCLUDED_SRC_DisasmInternal_h
20#ifndef RT_WITHOUT_PRAGMA_ONCE
21# pragma once
22#endif
23
24#include <VBox/types.h>
25#include <VBox/dis.h>
26
27
28/** @defgroup grp_dis_int Internals.
29 * @ingroup grp_dis
30 * @{
31 */
32
33/** @name Index into g_apfnCalcSize and g_apfnFullDisasm.
34 * @{ */
35enum IDX_Parse
36{
37 IDX_ParseNop = 0,
38 IDX_ParseModRM,
39 IDX_UseModRM,
40 IDX_ParseImmByte,
41 IDX_ParseImmBRel,
42 IDX_ParseImmUshort,
43 IDX_ParseImmV,
44 IDX_ParseImmVRel,
45 IDX_ParseImmAddr,
46 IDX_ParseFixedReg,
47 IDX_ParseImmUlong,
48 IDX_ParseImmQword,
49 IDX_ParseTwoByteEsc,
50 IDX_ParseGrp1,
51 IDX_ParseShiftGrp2,
52 IDX_ParseGrp3,
53 IDX_ParseGrp4,
54 IDX_ParseGrp5,
55 IDX_Parse3DNow,
56 IDX_ParseGrp6,
57 IDX_ParseGrp7,
58 IDX_ParseGrp8,
59 IDX_ParseGrp9,
60 IDX_ParseGrp10,
61 IDX_ParseGrp12,
62 IDX_ParseGrp13,
63 IDX_ParseGrp14,
64 IDX_ParseGrp15,
65 IDX_ParseGrp16,
66 IDX_ParseModFence,
67 IDX_ParseYv,
68 IDX_ParseYb,
69 IDX_ParseXv,
70 IDX_ParseXb,
71 IDX_ParseEscFP,
72 IDX_ParseNopPause,
73 IDX_ParseImmByteSX,
74 IDX_ParseImmZ,
75 IDX_ParseThreeByteEsc4,
76 IDX_ParseThreeByteEsc5,
77 IDX_ParseImmAddrF,
78 IDX_ParseInvOpModRM,
79 IDX_ParseVex2b,
80 IDX_ParseVex3b,
81 IDX_ParseVexDest,
82 IDX_ParseMax
83};
84AssertCompile(IDX_ParseMax < 64 /* Packed DISOPCODE assumption. */);
85/** @} */
86
87
88/** @name Opcode maps.
89 * @{ */
90extern const DISOPCODE g_InvalidOpcode[1];
91
92extern const DISOPCODE g_aOneByteMapX86[256];
93extern const DISOPCODE g_aOneByteMapX64[256];
94extern const DISOPCODE g_aTwoByteMapX86[256];
95
96/** Two byte opcode map with prefix 0x66 */
97extern const DISOPCODE g_aTwoByteMapX86_PF66[256];
98
99/** Two byte opcode map with prefix 0xF2 */
100extern const DISOPCODE g_aTwoByteMapX86_PFF2[256];
101
102/** Two byte opcode map with prefix 0xF3 */
103extern const DISOPCODE g_aTwoByteMapX86_PFF3[256];
104
105/** Three byte opcode map (0xF 0x38) */
106extern PCDISOPCODE const g_apThreeByteMapX86_0F38[16];
107
108/** Three byte opcode map with prefix 0x66 (0xF 0x38) */
109extern PCDISOPCODE const g_apThreeByteMapX86_660F38[16];
110
111/** Three byte opcode map with prefix 0xF2 (0xF 0x38) */
112extern PCDISOPCODE const g_apThreeByteMapX86_F20F38[16];
113
114/** Three byte opcode map with prefix 0xF3 (0xF 0x38) */
115extern PCDISOPCODE const g_apThreeByteMapX86_F30F38[16];
116
117extern PCDISOPCODE const g_apThreeByteMapX86_0F3A[16];
118
119/** Three byte opcode map with prefix 0x66 (0xF 0x3A) */
120extern PCDISOPCODE const g_apThreeByteMapX86_660F3A[16];
121
122/** Three byte opcode map with prefixes 0x66 0xF2 (0xF 0x38) */
123extern PCDISOPCODE const g_apThreeByteMapX86_66F20F38[16];
124
125/** VEX opcodes table defined by [VEX.m-mmmm - 1].
126 * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 00b */
127extern PCDISOPCODE const g_aVexOpcodesMap[3];
128
129/** VEX opcodes table defined by [VEX.m-mmmm - 1].
130 * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 01b (66h) */
131extern PCDISOPCODE const g_aVexOpcodesMap_66H[3];
132
133/** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 10b (F3h) */
134extern PCDISOPCODE const g_aVexOpcodesMap_F3H[3];
135
136/** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 11b (F2h) */
137extern PCDISOPCODE const g_aVexOpcodesMap_F2H[3];
138/** @} */
139
140/** @name Opcode extensions (Group tables)
141 * @{ */
142extern const DISOPCODE g_aMapX86_Group1[8*4];
143extern const DISOPCODE g_aMapX86_Group2[8*6];
144extern const DISOPCODE g_aMapX86_Group3[8*2];
145extern const DISOPCODE g_aMapX86_Group4[8];
146extern const DISOPCODE g_aMapX86_Group5[8];
147extern const DISOPCODE g_aMapX86_Group6[8];
148extern const DISOPCODE g_aMapX86_Group7_mem[8];
149extern const DISOPCODE g_aMapX86_Group7_mod11_rm000[8];
150extern const DISOPCODE g_aMapX86_Group7_mod11_rm001[8];
151extern const DISOPCODE g_aMapX86_Group8[8];
152extern const DISOPCODE g_aMapX86_Group9[8];
153extern const DISOPCODE g_aMapX86_Group10[8];
154extern const DISOPCODE g_aMapX86_Group11[8*2];
155extern const DISOPCODE g_aMapX86_Group12[8*2];
156extern const DISOPCODE g_aMapX86_Group13[8*2];
157extern const DISOPCODE g_aMapX86_Group14[8*2];
158extern const DISOPCODE g_aMapX86_Group15_mem[8];
159extern const DISOPCODE g_aMapX86_Group15_mod11_rm000[8];
160extern const DISOPCODE g_aMapX86_Group16[8];
161extern const DISOPCODE g_aMapX86_NopPause[2];
162/** @} */
163
164/** 3DNow! map (0x0F 0x0F prefix) */
165extern const DISOPCODE g_aTwoByteMapX86_3DNow[256];
166
167/** Floating point opcodes starting with escape byte 0xDF
168 * @{ */
169extern const DISOPCODE g_aMapX86_EscF0_Low[8];
170extern const DISOPCODE g_aMapX86_EscF0_High[16*4];
171extern const DISOPCODE g_aMapX86_EscF1_Low[8];
172extern const DISOPCODE g_aMapX86_EscF1_High[16*4];
173extern const DISOPCODE g_aMapX86_EscF2_Low[8];
174extern const DISOPCODE g_aMapX86_EscF2_High[16*4];
175extern const DISOPCODE g_aMapX86_EscF3_Low[8];
176extern const DISOPCODE g_aMapX86_EscF3_High[16*4];
177extern const DISOPCODE g_aMapX86_EscF4_Low[8];
178extern const DISOPCODE g_aMapX86_EscF4_High[16*4];
179extern const DISOPCODE g_aMapX86_EscF5_Low[8];
180extern const DISOPCODE g_aMapX86_EscF5_High[16*4];
181extern const DISOPCODE g_aMapX86_EscF6_Low[8];
182extern const DISOPCODE g_aMapX86_EscF6_High[16*4];
183extern const DISOPCODE g_aMapX86_EscF7_Low[8];
184extern const DISOPCODE g_aMapX86_EscF7_High[16*4];
185
186extern const PCDISOPCODE g_apMapX86_FP_Low[8];
187extern const PCDISOPCODE g_apMapX86_FP_High[8];
188/** @} */
189
190/** @def OP
191 * Wrapper which initializes an DISOPCODE.
192 * We must use this so that we can exclude unused fields in order
193 * to save precious bytes in the GC version.
194 *
195 * @internal
196 */
197#if DISOPCODE_FORMAT == 0
198# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
199 { pszOpcode, idxParse1, idxParse2, idxParse3, 0, opcode, param1, param2, param3, 0, 0, optype }
200# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
201 { pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, 0, optype | DISOPTYPE_SSE }
202
203#elif DISOPCODE_FORMAT == 16
204# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
205 { optype, opcode, idxParse1, idxParse2, param1, param2, idxParse3, param3, 0, 0 }
206# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
207 { optype | DISOPTYPE_SSE, opcode, idxParse1, idxParse2, param1, param2, idxParse3, param3, param4, idxParse4 }
208
209#elif DISOPCODE_FORMAT == 15
210# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
211 { opcode, idxParse1, idxParse2, idxParse3, param1, param2, param3, optype, 0, 0 }
212# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
213 { opcode, idxParse1, idxParse2, idxParse3, param1, param2, param3, optype | DISOPTYPE_SSE, param4, idxParse4 }
214#else
215# error Unsupported DISOPCODE_FORMAT value
216#endif
217
218
219size_t disFormatBytes(PCDISSTATE pDis, char *pszDst, size_t cchDst, uint32_t fFlags);
220
221/** @} */
222#endif /* !VBOX_INCLUDED_SRC_DisasmInternal_h */
223
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