VirtualBox

source: vbox/trunk/src/VBox/Disassembler/DisasmInternal.h@ 98278

Last change on this file since 98278 was 98103, checked in by vboxsync, 2 years ago

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1/* $Id: DisasmInternal.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * VBox disassembler - Internal header.
4 */
5
6/*
7 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28#ifndef VBOX_INCLUDED_SRC_DisasmInternal_h
29#define VBOX_INCLUDED_SRC_DisasmInternal_h
30#ifndef RT_WITHOUT_PRAGMA_ONCE
31# pragma once
32#endif
33
34#include <VBox/types.h>
35#include <VBox/dis.h>
36
37
38/** @defgroup grp_dis_int Internals.
39 * @ingroup grp_dis
40 * @{
41 */
42
43/** @name Index into g_apfnCalcSize and g_apfnFullDisasm.
44 * @{ */
45enum IDX_Parse
46{
47 IDX_ParseNop = 0,
48 IDX_ParseModRM,
49 IDX_UseModRM,
50 IDX_ParseImmByte,
51 IDX_ParseImmBRel,
52 IDX_ParseImmUshort,
53 IDX_ParseImmV,
54 IDX_ParseImmVRel,
55 IDX_ParseImmAddr,
56 IDX_ParseFixedReg,
57 IDX_ParseImmUlong,
58 IDX_ParseImmQword,
59 IDX_ParseTwoByteEsc,
60 IDX_ParseGrp1,
61 IDX_ParseShiftGrp2,
62 IDX_ParseGrp3,
63 IDX_ParseGrp4,
64 IDX_ParseGrp5,
65 IDX_Parse3DNow,
66 IDX_ParseGrp6,
67 IDX_ParseGrp7,
68 IDX_ParseGrp8,
69 IDX_ParseGrp9,
70 IDX_ParseGrp10,
71 IDX_ParseGrp12,
72 IDX_ParseGrp13,
73 IDX_ParseGrp14,
74 IDX_ParseGrp15,
75 IDX_ParseGrp16,
76 IDX_ParseGrp17,
77 IDX_ParseModFence,
78 IDX_ParseYv,
79 IDX_ParseYb,
80 IDX_ParseXv,
81 IDX_ParseXb,
82 IDX_ParseEscFP,
83 IDX_ParseNopPause,
84 IDX_ParseImmByteSX,
85 IDX_ParseImmZ,
86 IDX_ParseThreeByteEsc4,
87 IDX_ParseThreeByteEsc5,
88 IDX_ParseImmAddrF,
89 IDX_ParseInvOpModRM,
90 IDX_ParseVex2b,
91 IDX_ParseVex3b,
92 IDX_ParseVexDest,
93 IDX_ParseMax
94};
95AssertCompile(IDX_ParseMax < 64 /* Packed DISOPCODE assumption. */);
96/** @} */
97
98/**
99 * Opcode map descriptor.
100 *
101 * This is used a number of places to save storage space where there are lots of
102 * invalid instructions and the beginning or end of the map.
103 */
104typedef struct DISOPMAPDESC
105{
106 /** Pointer to the opcodes described by this structure. */
107 PCDISOPCODE papOpcodes;
108#if ARCH_BITS <= 32
109 uint16_t
110#else
111 uint32_t
112#endif
113 /** The map index corresponding to the first papOpcodes entry. */
114 idxFirst,
115 /** Number of opcodes in the map. */
116 cOpcodes;
117} DISOPMAPDESC;
118/** Pointer to a const opcode map descriptor. */
119typedef DISOPMAPDESC const *PCDISOPMAPDESC;
120
121/** @name Opcode maps.
122 * @{ */
123extern const DISOPCODE g_InvalidOpcode[1];
124
125extern const DISOPCODE g_aOneByteMapX86[256];
126extern const DISOPCODE g_aOneByteMapX64[256];
127extern const DISOPCODE g_aTwoByteMapX86[256];
128
129/** Two byte opcode map with prefix 0x66 */
130extern const DISOPCODE g_aTwoByteMapX86_PF66[256];
131
132/** Two byte opcode map with prefix 0xF2 */
133extern const DISOPCODE g_aTwoByteMapX86_PFF2[256];
134
135/** Two byte opcode map with prefix 0xF3 */
136extern const DISOPCODE g_aTwoByteMapX86_PFF3[256];
137
138/** Three byte opcode map (0xF 0x38) */
139extern PCDISOPCODE const g_apThreeByteMapX86_0F38[16];
140
141/** Three byte opcode map with prefix 0x66 (0xF 0x38) */
142extern PCDISOPCODE const g_apThreeByteMapX86_660F38[16];
143
144/** Three byte opcode map with prefix 0xF2 (0xF 0x38) */
145extern PCDISOPCODE const g_apThreeByteMapX86_F20F38[16];
146
147/** Three byte opcode map with prefix 0xF3 (0xF 0x38) */
148extern PCDISOPCODE const g_apThreeByteMapX86_F30F38[16];
149
150extern PCDISOPCODE const g_apThreeByteMapX86_0F3A[16];
151
152/** Three byte opcode map with prefix 0x66 (0xF 0x3A) */
153extern PCDISOPCODE const g_apThreeByteMapX86_660F3A[16];
154
155/** Three byte opcode map with prefixes 0x66 0xF2 (0xF 0x38) */
156extern PCDISOPCODE const g_apThreeByteMapX86_66F20F38[16];
157
158/** VEX opcodes table defined by [VEX.m-mmmm - 1].
159 * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 00b */
160extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_None[3];
161
162/** VEX opcodes table defined by [VEX.m-mmmm - 1].
163 * 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 01b (66h) */
164extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_66H[3];
165
166/** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 10b (F3h) */
167extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_F3H[3];
168
169/** 0Fh, 0F38h, 0F3Ah correspondingly, VEX.pp = 11b (F2h) */
170extern PCDISOPMAPDESC const g_apVexOpcodesMapRanges_F2H[3];
171
172/** Two dimmentional map descriptor array: first index is by VEX.pp (prefix),
173 * second by the VEX.mmmm (map).
174 * The latter has to be bounced checked as we only have the first 4 maps. */
175extern PCDISOPMAPDESC const g_aapVexOpcodesMapRanges[4][4];
176/** @} */
177
178/** @name Opcode extensions (Group tables)
179 * @{ */
180extern const DISOPCODE g_aMapX86_Group1[8*4];
181extern const DISOPCODE g_aMapX86_Group2[8*6];
182extern const DISOPCODE g_aMapX86_Group3[8*2];
183extern const DISOPCODE g_aMapX86_Group4[8];
184extern const DISOPCODE g_aMapX86_Group5[8];
185extern const DISOPCODE g_aMapX86_Group6[8];
186extern const DISOPCODE g_aMapX86_Group7_mem[8];
187extern const DISOPCODE g_aMapX86_Group7_mod11_rm000[8];
188extern const DISOPCODE g_aMapX86_Group7_mod11_rm001[8];
189extern const DISOPCODE g_aMapX86_Group8[8];
190extern const DISOPCODE g_aMapX86_Group9[8];
191extern const DISOPCODE g_aMapX86_Group10[8];
192extern const DISOPCODE g_aMapX86_Group11[8*2];
193extern const DISOPCODE g_aMapX86_Group12[8*2];
194extern const DISOPCODE g_aMapX86_Group13[8*2];
195extern const DISOPCODE g_aMapX86_Group14[8*2];
196extern const DISOPCODE g_aMapX86_Group15_mem[8];
197extern const DISOPCODE g_aMapX86_Group15_mod11_rm000[8];
198extern const DISOPCODE g_aMapX86_Group16[8];
199extern const DISOPCODE g_aMapX86_Group17[8*2];
200extern const DISOPCODE g_aMapX86_NopPause[2];
201/** @} */
202
203/** 3DNow! map (0x0F 0x0F prefix) */
204extern const DISOPCODE g_aTwoByteMapX86_3DNow[256];
205
206/** Floating point opcodes starting with escape byte 0xDF
207 * @{ */
208extern const DISOPCODE g_aMapX86_EscF0_Low[8];
209extern const DISOPCODE g_aMapX86_EscF0_High[16*4];
210extern const DISOPCODE g_aMapX86_EscF1_Low[8];
211extern const DISOPCODE g_aMapX86_EscF1_High[16*4];
212extern const DISOPCODE g_aMapX86_EscF2_Low[8];
213extern const DISOPCODE g_aMapX86_EscF2_High[16*4];
214extern const DISOPCODE g_aMapX86_EscF3_Low[8];
215extern const DISOPCODE g_aMapX86_EscF3_High[16*4];
216extern const DISOPCODE g_aMapX86_EscF4_Low[8];
217extern const DISOPCODE g_aMapX86_EscF4_High[16*4];
218extern const DISOPCODE g_aMapX86_EscF5_Low[8];
219extern const DISOPCODE g_aMapX86_EscF5_High[16*4];
220extern const DISOPCODE g_aMapX86_EscF6_Low[8];
221extern const DISOPCODE g_aMapX86_EscF6_High[16*4];
222extern const DISOPCODE g_aMapX86_EscF7_Low[8];
223extern const DISOPCODE g_aMapX86_EscF7_High[16*4];
224
225extern const PCDISOPCODE g_apMapX86_FP_Low[8];
226extern const PCDISOPCODE g_apMapX86_FP_High[8];
227/** @} */
228
229/** @def OP
230 * Wrapper which initializes an DISOPCODE.
231 * We must use this so that we can exclude unused fields in order
232 * to save precious bytes in the GC version.
233 *
234 * @internal
235 */
236#if DISOPCODE_FORMAT == 0
237# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
238 { pszOpcode, idxParse1, idxParse2, idxParse3, 0, opcode, param1, param2, param3, 0, 0, optype }
239# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
240 { pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, 0, optype | DISOPTYPE_SSE }
241
242#elif DISOPCODE_FORMAT == 16
243# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
244 { optype, opcode, idxParse1, idxParse2, param1, param2, idxParse3, param3, 0, 0 }
245# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
246 { optype | DISOPTYPE_SSE, opcode, idxParse1, idxParse2, param1, param2, idxParse3, param3, param4, idxParse4 }
247
248#elif DISOPCODE_FORMAT == 15
249# define OP(pszOpcode, idxParse1, idxParse2, idxParse3, opcode, param1, param2, param3, optype) \
250 { opcode, idxParse1, idxParse2, idxParse3, param1, param2, param3, optype, 0, 0 }
251# define OPVEX(pszOpcode, idxParse1, idxParse2, idxParse3, idxParse4, opcode, param1, param2, param3, param4, optype) \
252 { opcode, idxParse1, idxParse2, idxParse3, param1, param2, param3, optype | DISOPTYPE_SSE, param4, idxParse4 }
253#else
254# error Unsupported DISOPCODE_FORMAT value
255#endif
256
257
258size_t disFormatBytes(PCDISSTATE pDis, char *pszDst, size_t cchDst, uint32_t fFlags);
259
260/** @} */
261#endif /* !VBOX_INCLUDED_SRC_DisasmInternal_h */
262
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