131d157ae1ac2cd9c787dc3c1d28e64c682803844Jia Liu/*===-- X86DisassemblerDecoderCommon.h - Disassembler decoder -----*- C -*-===* 28ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 38ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * The LLVM Compiler Infrastructure 48ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 58ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * This file is distributed under the University of Illinois Open Source 68ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * License. See LICENSE.TXT for details. 78ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 88ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan *===----------------------------------------------------------------------===* 98ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 108ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * This file is part of the X86 Disassembler. 118ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * It contains common definitions used by both the disassembler and the table 128ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * generator. 138ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Documentation for the disassembler can be found in X86Disassembler.h. 148ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 158ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan *===----------------------------------------------------------------------===*/ 168ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 178ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 188ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * This header file provides those definitions that need to be shared between 198ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * the decoder and the table generator in a C-friendly manner. 208ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 218ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 228ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#ifndef X86DISASSEMBLERDECODERCOMMON_H 238ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define X86DISASSEMBLERDECODERCOMMON_H 248ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 251f6efa3996dd1929fbc129203ce5009b620e6969Michael J. Spencer#include "llvm/Support/DataTypes.h" 268ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 278ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define INSTRUCTIONS_SYM x86DisassemblerInstrSpecifiers 288ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define CONTEXTS_SYM x86DisassemblerContexts 298ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ONEBYTE_SYM x86DisassemblerOneByteOpcodes 308ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define TWOBYTE_SYM x86DisassemblerTwoByteOpcodes 318ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define THREEBYTE38_SYM x86DisassemblerThreeByte38Opcodes 328ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define THREEBYTE3A_SYM x86DisassemblerThreeByte3AOpcodes 334a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger#define THREEBYTEA6_SYM x86DisassemblerThreeByteA6Opcodes 344a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger#define THREEBYTEA7_SYM x86DisassemblerThreeByteA7Opcodes 358ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 368ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define INSTRUCTIONS_STR "x86DisassemblerInstrSpecifiers" 378ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define CONTEXTS_STR "x86DisassemblerContexts" 388ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ONEBYTE_STR "x86DisassemblerOneByteOpcodes" 398ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define TWOBYTE_STR "x86DisassemblerTwoByteOpcodes" 408ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define THREEBYTE38_STR "x86DisassemblerThreeByte38Opcodes" 418ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define THREEBYTE3A_STR "x86DisassemblerThreeByte3AOpcodes" 424a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger#define THREEBYTEA6_STR "x86DisassemblerThreeByteA6Opcodes" 434a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger#define THREEBYTEA7_STR "x86DisassemblerThreeByteA7Opcodes" 448ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 458ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 468ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Attributes of an instruction that must be known before the opcode can be 478ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * processed correctly. Most of these indicate the presence of particular 488ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * prefixes, but ATTR_64BIT is simply an attribute of the decoding context. 498ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 508ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ATTRIBUTE_BITS \ 518ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ATTR_NONE, 0x00) \ 528ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ATTR_64BIT, 0x01) \ 538ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ATTR_XS, 0x02) \ 548ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ATTR_XD, 0x04) \ 558ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ATTR_REXW, 0x08) \ 56a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(ATTR_OPSIZE, 0x10) \ 57930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper ENUM_ENTRY(ATTR_ADSIZE, 0x20) \ 58930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper ENUM_ENTRY(ATTR_VEX, 0x40) \ 59930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper ENUM_ENTRY(ATTR_VEXL, 0x80) 608ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 618ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ENUM_ENTRY(n, v) n = v, 628ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananenum attributeBits { 638ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ATTRIBUTE_BITS 648ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ATTR_max 658ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 668ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 678ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 688ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 698ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Combinations of the above attributes that are relevant to instruction 708ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * decode. Although other combinations are possible, they can be reduced to 718ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * these without affecting the ultimately decoded instruction. 728ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 738ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 748ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* Class name Rank Rationale for rank assignment */ 758ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define INSTRUCTION_CONTEXTS \ 768ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC, 0, "says nothing about the instruction") \ 778ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT, 1, "says the instruction applies in " \ 788ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "64-bit mode but no more") \ 798ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 808ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "operands change width") \ 81930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper ENUM_ENTRY(IC_ADSIZE, 3, "requires an ADSIZE prefix, so " \ 82930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper "operands change width") \ 838ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_XD, 2, "may say something about the opcode " \ 848ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "but not the operands") \ 858ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_XS, 2, "may say something about the opcode " \ 868ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "but not the operands") \ 87e1b4a1a07ec79440536e4535721f15de3893cd13Craig Topper ENUM_ENTRY(IC_XD_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 88e1b4a1a07ec79440536e4535721f15de3893cd13Craig Topper "operands change width") \ 8929480fd798dc6452948f63825ff41c66f09c2493Craig Topper ENUM_ENTRY(IC_XS_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 9029480fd798dc6452948f63825ff41c66f09c2493Craig Topper "operands change width") \ 918ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_REXW, 4, "requires a REX.W prefix, so operands "\ 928ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "change width; overrides IC_OPSIZE") \ 938ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_OPSIZE, 3, "Just as meaningful as IC_OPSIZE") \ 94930a1ebd929aa0ab4c2610e7f7a721c18dcfe052Craig Topper ENUM_ENTRY(IC_64BIT_ADSIZE, 3, "Just as meaningful as IC_ADSIZE") \ 958ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_XD, 5, "XD instructions are SSE; REX.W is " \ 968ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "secondary") \ 978ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_XS, 5, "Just as meaningful as IC_64BIT_XD") \ 98e1b4a1a07ec79440536e4535721f15de3893cd13Craig Topper ENUM_ENTRY(IC_64BIT_XD_OPSIZE, 3, "Just as meaningful as IC_XD_OPSIZE") \ 9929480fd798dc6452948f63825ff41c66f09c2493Craig Topper ENUM_ENTRY(IC_64BIT_XS_OPSIZE, 3, "Just as meaningful as IC_XS_OPSIZE") \ 1008ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_REXW_XS, 6, "OPSIZE could mean a different " \ 1018ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "opcode") \ 1028ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_REXW_XD, 6, "Just as meaningful as " \ 1038ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "IC_64BIT_REXW_XS") \ 1048ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(IC_64BIT_REXW_OPSIZE, 7, "The Dynamic Duo! Prefer over all " \ 1058ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "else because this changes most " \ 106a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan "operands' meaning") \ 107a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX, 1, "requires a VEX prefix") \ 108a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_XS, 2, "requires VEX and the XS prefix") \ 109a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_XD, 2, "requires VEX and the XD prefix") \ 110a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_OPSIZE, 2, "requires VEX and the OpSize prefix") \ 111a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_W, 3, "requires VEX and the W prefix") \ 112a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_W_XS, 4, "requires VEX, W, and XS prefix") \ 113a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_W_XD, 4, "requires VEX, W, and XD prefix") \ 114a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_W_OPSIZE, 4, "requires VEX, W, and OpSize") \ 115a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_L, 3, "requires VEX and the L prefix") \ 116a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(IC_VEX_L_XS, 4, "requires VEX and the L and XS prefix")\ 1176744a17dcfb941d9fdd869b9f06e20660e18ff88Craig Topper ENUM_ENTRY(IC_VEX_L_XD, 4, "requires VEX and the L and XD prefix")\ 118c8eb880a7fb0958a3a048a82c8558beec11f1209Craig Topper ENUM_ENTRY(IC_VEX_L_OPSIZE, 4, "requires VEX, L, and OpSize") \ 119c8eb880a7fb0958a3a048a82c8558beec11f1209Craig Topper ENUM_ENTRY(IC_VEX_L_W_OPSIZE, 5, "requires VEX, L, W and OpSize") 120a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan 1218ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1225592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper#define ENUM_ENTRY(n, r, d) n, 1238ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 1248ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan INSTRUCTION_CONTEXTS 1258ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan IC_max 1268ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} InstructionContext; 1278ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 1288ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1298ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 1308ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Opcode types, which determine which decode table to use, both in the Intel 1318ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * manual and also for the decoder. 1328ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 1338ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 1348ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ONEBYTE = 0, 1358ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan TWOBYTE = 1, 1368ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan THREEBYTE_38 = 2, 1374a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger THREEBYTE_3A = 3, 1384a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger THREEBYTE_A6 = 4, 1394a8ac8de1ddfeaadb9ff13ce361bfc6435f18028Joerg Sonnenberger THREEBYTE_A7 = 5 1408ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} OpcodeType; 1418ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1428ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 1438ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * The following structs are used for the hierarchical decode table. After 1448ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * determining the instruction's class (i.e., which IC_* constant applies to 1458ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * it), the decoder reads the opcode. Some instructions require specific 1468ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * values of the ModR/M byte, so the ModR/M byte indexes into the final table. 1478ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 1488ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * If a ModR/M byte is not required, "required" is left unset, and the values 1498ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * for each instructionID are identical. 1508ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 1515592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper 1528ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef uint16_t InstrUID; 1538ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1548ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 1555592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper * ModRMDecisionType - describes the type of ModR/M decision, allowing the 1568ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * consumer to determine the number of entries in it. 1578ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * 1588ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * MODRM_ONEENTRY - No matter what the value of the ModR/M byte is, the decoded 1598ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * instruction is the same. 1608ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * MODRM_SPLITRM - If the ModR/M byte is between 0x00 and 0xbf, the opcode 1618ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * corresponds to one instruction; otherwise, it corresponds to 1628ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * a different instruction. 163f41ab77847251f1ca88142b4e9cba597f9c094a8Craig Topper * MODRM_SPLITREG - ModR/M byte divided by 8 is used to select instruction. This 164f41ab77847251f1ca88142b4e9cba597f9c094a8Craig Topper corresponds to instructions that use reg field as opcode 1658ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * MODRM_FULL - Potentially, each value of the ModR/M byte could correspond 1668ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * to a different instruction. 1678ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 1688ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1698ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define MODRMTYPES \ 1708ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODRM_ONEENTRY) \ 1718ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODRM_SPLITRM) \ 172f41ab77847251f1ca88142b4e9cba597f9c094a8Craig Topper ENUM_ENTRY(MODRM_SPLITREG) \ 1738ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODRM_FULL) 1748ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1755592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper#define ENUM_ENTRY(n) n, 1768ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 1778ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODRMTYPES 1788ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODRM_max 1798ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} ModRMDecisionType; 1808ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 1818ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1828ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 1835592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper * ModRMDecision - Specifies whether a ModR/M byte is needed and (if so) which 1848ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * instruction each possible value of the ModR/M byte corresponds to. Once 1858ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * this information is known, we have narrowed down to a single instruction. 1868ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 1878ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananstruct ModRMDecision { 1888ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan uint8_t modrm_type; 1895592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper 1908ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan /* The macro below must be defined wherever this file is included. */ 1918ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan INSTRUCTION_IDS 1928ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 1938ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 1948ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 1958ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * OpcodeDecision - Specifies which set of ModR/M->instruction tables to look at 1968ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * given a particular opcode. 1978ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 1988ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananstruct OpcodeDecision { 1998ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan struct ModRMDecision modRMDecisions[256]; 2008ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 2018ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2028ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 2038ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * ContextDecision - Specifies which opcode->instruction tables to look at given 2048ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * a particular context (set of attributes). Since there are many possible 2058ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * contexts, the decoder first uses CONTEXTS_SYM to determine which context 2068ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * applies given a specific set of attributes. Hence there are only IC_max 2078ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * entries in this table, rather than 2^(ATTR_max). 2088ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 2098ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananstruct ContextDecision { 2108ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan struct OpcodeDecision opcodeDecisions[IC_max]; 2118ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 2128ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2135592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper/* 2148ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Physical encodings of instruction operands. 2158ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 2168ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2178ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ENCODINGS \ 2188ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_NONE, "") \ 2198ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_REG, "Register operand in ModR/M byte.") \ 2208ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_RM, "R/M operand in ModR/M byte.") \ 221a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(ENCODING_VVVV, "Register operand in VEX.vvvv byte.") \ 2228ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CB, "1-byte code offset (possible new CS value)") \ 2238ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CW, "2-byte") \ 2248ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CD, "4-byte") \ 2258ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CP, "6-byte") \ 2268ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CO, "8-byte") \ 2278ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_CT, "10-byte") \ 2288ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_IB, "1-byte immediate") \ 2298ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_IW, "2-byte") \ 2308ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_ID, "4-byte") \ 2318ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_IO, "8-byte") \ 2328ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_RB, "(AL..DIL, R8L..R15L) Register code added to " \ 2338ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "the opcode byte") \ 2348ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_RW, "(AX..DI, R8W..R15W)") \ 2358ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_RD, "(EAX..EDI, R8D..R15D)") \ 2368ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_RO, "(RAX..RDI, R8..R15)") \ 2378ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_I, "Position on floating-point stack added to the " \ 2388ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "opcode byte") \ 2398ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan \ 2408ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_Iv, "Immediate of operand size") \ 2418ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_Ia, "Immediate of address size") \ 2428ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_Rv, "Register code of operand size added to the " \ 2438ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "opcode byte") \ 2448ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(ENCODING_DUP, "Duplicate of another operand; ID is encoded " \ 2458ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "in type") 2468ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2475592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper#define ENUM_ENTRY(n, d) n, 2488ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan typedef enum { 2498ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENCODINGS 2508ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENCODING_max 2518ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan } OperandEncoding; 2528ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 2538ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2545592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper/* 2558ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Semantic interpretations of instruction operands. 2568ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 2578ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 2588ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define TYPES \ 2598ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_NONE, "") \ 2608ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_REL8, "1-byte immediate address") \ 2618ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_REL16, "2-byte") \ 2628ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_REL32, "4-byte") \ 2638ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_REL64, "8-byte") \ 2648ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_PTR1616, "2+2-byte segment+offset address") \ 2658ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_PTR1632, "2+4-byte") \ 2668ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_PTR1664, "2+8-byte") \ 2678ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_R8, "1-byte register operand") \ 2688ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_R16, "2-byte") \ 2698ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_R32, "4-byte") \ 2708ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_R64, "8-byte") \ 2718ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_IMM8, "1-byte immediate operand") \ 2728ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_IMM16, "2-byte") \ 2738ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_IMM32, "4-byte") \ 2748ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_IMM64, "8-byte") \ 2755edca8162623b742282f5f03b0872ac3469b5bedSean Callanan ENUM_ENTRY(TYPE_IMM3, "1-byte immediate operand between 0 and 7") \ 276769bbfd951018f9b36f3d2f0d70a23d81f2d3287Craig Topper ENUM_ENTRY(TYPE_IMM5, "1-byte immediate operand between 0 and 31") \ 2778ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_RM8, "1-byte register or memory operand") \ 2788ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_RM16, "2-byte") \ 2798ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_RM32, "4-byte") \ 2808ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_RM64, "8-byte") \ 2818ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M, "Memory operand") \ 2828ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M8, "1-byte") \ 2838ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M16, "2-byte") \ 2848ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M32, "4-byte") \ 2858ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M64, "8-byte") \ 2867fb35a2fd83f5deadefcb230669b07e1d5b98137Sean Callanan ENUM_ENTRY(TYPE_LEA, "Effective address") \ 2878ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M128, "16-byte (SSE/SSE2)") \ 288b2ef4c1235c846c2503d0796541f4255ef1e13f5Chris Lattner ENUM_ENTRY(TYPE_M256, "256-byte (AVX)") \ 2898ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M1616, "2+2-byte segment+offset address") \ 2908ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M1632, "2+4-byte") \ 2918ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M1664, "2+8-byte") \ 2928ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M16_32, "2+4-byte two-part memory operand (LIDT, LGDT)") \ 2938ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M16_16, "2+2-byte (BOUND)") \ 2948ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M32_32, "4+4-byte (BOUND)") \ 2958ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M16_64, "2+8-byte (LIDT, LGDT)") \ 2968ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MOFFS8, "1-byte memory offset (relative to segment " \ 2978ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "base)") \ 2988ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MOFFS16, "2-byte") \ 2998ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MOFFS32, "4-byte") \ 3008ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MOFFS64, "8-byte") \ 3018ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_SREG, "Byte with single bit set: 0 = ES, 1 = CS, " \ 3028ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "2 = SS, 3 = DS, 4 = FS, 5 = GS") \ 3038ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M32FP, "32-bit IEE754 memory floating-point operand") \ 3048ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M64FP, "64-bit") \ 3058ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M80FP, "80-bit extended") \ 3068ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M16INT, "2-byte memory integer operand for use in " \ 3078ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan "floating-point instructions") \ 3088ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M32INT, "4-byte") \ 3098ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M64INT, "8-byte") \ 3108ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_ST, "Position on the floating-point stack") \ 3118ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MM, "MMX register operand") \ 3128ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MM32, "4-byte MMX register or memory operand") \ 3138ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_MM64, "8-byte") \ 3148ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_XMM, "XMM register operand") \ 3158ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_XMM32, "4-byte XMM register or memory operand") \ 3168ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_XMM64, "8-byte") \ 3178ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_XMM128, "16-byte") \ 318a21e2eae3def2fe39caed861dcb73c76c715569bSean Callanan ENUM_ENTRY(TYPE_XMM256, "32-byte") \ 3198ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_XMM0, "Implicit use of XMM0") \ 3208ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_SEGMENTREG, "Segment register operand") \ 3218ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DEBUGREG, "Debug register operand") \ 3221a8b789a4b8290d263c1c75411788ca45bae3230Sean Callanan ENUM_ENTRY(TYPE_CONTROLREG, "Control register operand") \ 3238ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan \ 3248ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_Mv, "Memory operand of operand size") \ 3258ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_Rv, "Register operand of operand size") \ 3268ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_IMMv, "Immediate operand of operand size") \ 3278ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_RELv, "Immediate address of operand size") \ 3288ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DUP0, "Duplicate of operand 0") \ 3298ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DUP1, "operand 1") \ 3308ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DUP2, "operand 2") \ 3318ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DUP3, "operand 3") \ 3328ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_DUP4, "operand 4") \ 3338ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(TYPE_M512, "512-bit FPU/MMX/XMM/MXCSR state") 3348ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3355592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper#define ENUM_ENTRY(n, d) n, 3368ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 3378ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan TYPES 3388ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan TYPE_max 3398ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} OperandType; 3408ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 3418ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3425592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper/* 3438ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * OperandSpecifier - The specification for how to extract and interpret one 3448ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * operand. 3458ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 3468ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananstruct OperandSpecifier { 347991271d9c454c9d599b63e4ebdd27b546e1782a1Craig Topper uint8_t encoding; 348991271d9c454c9d599b63e4ebdd27b546e1782a1Craig Topper uint8_t type; 3498ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 3508ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3518ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 3528ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Indicates where the opcode modifier (if any) is to be found. Extended 3538ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * opcodes with AddRegFrm have the opcode modifier in the ModR/M byte. 3548ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 3558ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3568ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define MODIFIER_TYPES \ 3578ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODIFIER_NONE) \ 3588ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODIFIER_OPCODE) \ 3598ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan ENUM_ENTRY(MODIFIER_MODRM) 3608ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3618ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define ENUM_ENTRY(n) n, 3628ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 3638ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODIFIER_TYPES 3648ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODIFIER_max 3658ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} ModifierType; 3668ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#undef ENUM_ENTRY 3678ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3688ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#define X86_MAX_OPERANDS 5 3698ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3708ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 3718ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * The specification for how to extract and interpret a full instruction and 3728ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * its operands. 3738ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 3748ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callananstruct InstructionSpecifier { 375991271d9c454c9d599b63e4ebdd27b546e1782a1Craig Topper uint8_t modifierType; 3768ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan uint8_t modifierBase; 3775592b4567d46ad2a74ffc734165b3b41a397a1b1Craig Topper 3788ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan /* The macro below must be defined wherever this file is included. */ 3798ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan INSTRUCTION_SPECIFIER_FIELDS 3808ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan}; 3818ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3828ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan/* 3838ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * Decoding mode for the Intel disassembler. 16-bit, 32-bit, and 64-bit mode 3848ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * are supported, and represent real mode, IA-32e, and IA-32e in 64-bit mode, 3858ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan * respectively. 3868ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan */ 3878ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanantypedef enum { 3888ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODE_16BIT, 3898ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODE_32BIT, 3908ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan MODE_64BIT 3918ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan} DisassemblerMode; 3928ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan 3938ed9f51663bc5533f36ca62e5668ae08e9a1313fSean Callanan#endif 394