///////////////////////////////////////////////////////////////////////// // $Id$ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2001-2019 The Bochs Project // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA // ///////////////////////////////////////////////////////////////////////// #include "bochs.h" #include "instr.h" #include "decoder.h" #define LOG_THIS genlog-> #if BX_SUPPORT_X86_64 /////////////////////////// // prefix bytes // opcode bytes // modrm/sib // address displacement // immediate constant /////////////////////////// // Segment override prefixes // ------------------------- // In 64-bit mode the CS, DS, ES, and SS segment overrides are ignored. // decoding instructions; accessing seg reg's by index static unsigned sreg_mod0_base32[16] = { BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_SS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS }; static unsigned sreg_mod1or2_base32[16] = { BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_SS, BX_SEG_REG_SS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS, BX_SEG_REG_DS }; // common fetchdecode32/64 opcode tables #include "fetchdecode.h" #include "fetchdecode_opmap.h" #include "fetchdecode_opmap_0f38.h" #include "fetchdecode_opmap_0f3a.h" #include "fetchdecode_x87.h" #if BX_SUPPORT_AVX #include "fetchdecode_avx.h" #include "fetchdecode_xop.h" #endif #if BX_SUPPORT_EVEX #include "fetchdecode_evex.h" #endif // table of all Bochs opcodes extern struct bxIAOpcodeTable BxOpcodesTable[]; extern Bit16u findOpcode(const Bit64u *opMap, Bit32u opMsk); extern bx_bool assign_srcs(bxInstruction_c *i, unsigned ia_opcode, unsigned nnn, unsigned rm); #if BX_SUPPORT_AVX extern bx_bool assign_srcs(bxInstruction_c *i, unsigned ia_opcode, bx_bool is_64, unsigned nnn, unsigned rm, unsigned vvv, unsigned vex_w, bx_bool had_evex = BX_FALSE, bx_bool displ8 = BX_FALSE); #endif extern const Bit8u *decodeModrm64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned mod, unsigned nnn, unsigned rm, unsigned rex_r, unsigned rex_x, unsigned rex_b); extern const Bit8u *parseModrm64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned rex_prefix, struct bx_modrm *modrm); extern int fetchImmediate(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, Bit16u ia_opcode, bx_bool is_64); extern int decoder_simple64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder_creg64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder64_fp_escape(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder64_3dnow(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder_vex64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder_evex64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder_xop64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder_ud64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder64_nop(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); extern int decoder64_modrm(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); typedef int (*BxFetchDecode64Ptr)(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table); struct BxOpcodeDecodeDescriptor64 { BxFetchDecode64Ptr decode_method; const void *opcode_table; }; static BxOpcodeDecodeDescriptor64 decode64_descriptor[] = { /* 00 */ { &decoder64_modrm, BxOpcodeTable00 }, /* 01 */ { &decoder64_modrm, BxOpcodeTable01 }, /* 02 */ { &decoder64_modrm, BxOpcodeTable02 }, /* 03 */ { &decoder64_modrm, BxOpcodeTable03 }, /* 04 */ { &decoder64, BxOpcodeTable04 }, /* 05 */ { &decoder64, BxOpcodeTable05 }, /* 06 */ { &decoder_ud64, NULL }, /* 07 */ { &decoder_ud64, NULL }, /* 08 */ { &decoder64_modrm, BxOpcodeTable08 }, /* 09 */ { &decoder64_modrm, BxOpcodeTable09 }, /* 0A */ { &decoder64_modrm, BxOpcodeTable0A }, /* 0B */ { &decoder64_modrm, BxOpcodeTable0B }, /* 0C */ { &decoder64, BxOpcodeTable0C }, /* 0D */ { &decoder64, BxOpcodeTable0D }, /* 0E */ { &decoder_ud64, NULL }, /* 0F */ { &decoder_ud64, NULL }, // 2-byte escape /* 10 */ { &decoder64_modrm, BxOpcodeTable10 }, /* 11 */ { &decoder64_modrm, BxOpcodeTable11 }, /* 12 */ { &decoder64_modrm, BxOpcodeTable12 }, /* 13 */ { &decoder64_modrm, BxOpcodeTable13 }, /* 14 */ { &decoder64, BxOpcodeTable14 }, /* 15 */ { &decoder64, BxOpcodeTable15 }, /* 16 */ { &decoder_ud64, NULL }, /* 17 */ { &decoder_ud64, NULL }, /* 18 */ { &decoder64_modrm, BxOpcodeTable18 }, /* 19 */ { &decoder64_modrm, BxOpcodeTable19 }, /* 1A */ { &decoder64_modrm, BxOpcodeTable1A }, /* 1B */ { &decoder64_modrm, BxOpcodeTable1B }, /* 1C */ { &decoder64, BxOpcodeTable1C }, /* 1D */ { &decoder64, BxOpcodeTable1D }, /* 1E */ { &decoder_ud64, NULL }, /* 1F */ { &decoder_ud64, NULL }, /* 20 */ { &decoder64_modrm, BxOpcodeTable20 }, /* 21 */ { &decoder64_modrm, BxOpcodeTable21 }, /* 22 */ { &decoder64_modrm, BxOpcodeTable22 }, /* 23 */ { &decoder64_modrm, BxOpcodeTable23 }, /* 24 */ { &decoder64, BxOpcodeTable24 }, /* 25 */ { &decoder64, BxOpcodeTable25 }, /* 26 */ { &decoder_ud64, NULL }, // ES: /* 27 */ { &decoder_ud64, NULL }, /* 28 */ { &decoder64_modrm, BxOpcodeTable28 }, /* 29 */ { &decoder64_modrm, BxOpcodeTable29 }, /* 2A */ { &decoder64_modrm, BxOpcodeTable2A }, /* 2B */ { &decoder64_modrm, BxOpcodeTable2B }, /* 2C */ { &decoder64, BxOpcodeTable2C }, /* 2D */ { &decoder64, BxOpcodeTable2D }, /* 2E */ { &decoder_ud64, NULL }, // CS: /* 2F */ { &decoder_ud64, NULL }, /* 30 */ { &decoder64_modrm, BxOpcodeTable30 }, /* 31 */ { &decoder64_modrm, BxOpcodeTable31 }, /* 32 */ { &decoder64_modrm, BxOpcodeTable32 }, /* 33 */ { &decoder64_modrm, BxOpcodeTable33 }, /* 34 */ { &decoder64, BxOpcodeTable34 }, /* 35 */ { &decoder64, BxOpcodeTable35 }, /* 36 */ { &decoder_ud64, NULL }, // SS: /* 37 */ { &decoder_ud64, NULL }, /* 38 */ { &decoder64_modrm, BxOpcodeTable38 }, /* 39 */ { &decoder64_modrm, BxOpcodeTable39 }, /* 3A */ { &decoder64_modrm, BxOpcodeTable3A }, /* 3B */ { &decoder64_modrm, BxOpcodeTable3B }, /* 3C */ { &decoder64, BxOpcodeTable3C }, /* 3D */ { &decoder64, BxOpcodeTable3D }, /* 3E */ { &decoder_ud64, NULL }, // DS: /* 3F */ { &decoder_ud64, NULL }, /* 40 */ { &decoder_ud64, NULL }, // REX prefix /* 41 */ { &decoder_ud64, NULL }, // REX prefix /* 42 */ { &decoder_ud64, NULL }, // REX prefix /* 43 */ { &decoder_ud64, NULL }, // REX prefix /* 44 */ { &decoder_ud64, NULL }, // REX prefix /* 45 */ { &decoder_ud64, NULL }, // REX prefix /* 46 */ { &decoder_ud64, NULL }, // REX prefix /* 47 */ { &decoder_ud64, NULL }, // REX prefix /* 48 */ { &decoder_ud64, NULL }, // REX prefix /* 49 */ { &decoder_ud64, NULL }, // REX prefix /* 4A */ { &decoder_ud64, NULL }, // REX prefix /* 4B */ { &decoder_ud64, NULL }, // REX prefix /* 4C */ { &decoder_ud64, NULL }, // REX prefix /* 4D */ { &decoder_ud64, NULL }, // REX prefix /* 4E */ { &decoder_ud64, NULL }, // REX prefix /* 4F */ { &decoder_ud64, NULL }, // REX prefix /* 50 */ { &decoder64, BxOpcodeTable50x57 }, /* 51 */ { &decoder64, BxOpcodeTable50x57 }, /* 52 */ { &decoder64, BxOpcodeTable50x57 }, /* 53 */ { &decoder64, BxOpcodeTable50x57 }, /* 54 */ { &decoder64, BxOpcodeTable50x57 }, /* 55 */ { &decoder64, BxOpcodeTable50x57 }, /* 56 */ { &decoder64, BxOpcodeTable50x57 }, /* 57 */ { &decoder64, BxOpcodeTable50x57 }, /* 58 */ { &decoder64, BxOpcodeTable58x5F }, /* 59 */ { &decoder64, BxOpcodeTable58x5F }, /* 5A */ { &decoder64, BxOpcodeTable58x5F }, /* 5B */ { &decoder64, BxOpcodeTable58x5F }, /* 5C */ { &decoder64, BxOpcodeTable58x5F }, /* 5D */ { &decoder64, BxOpcodeTable58x5F }, /* 5E */ { &decoder64, BxOpcodeTable58x5F }, /* 5F */ { &decoder64, BxOpcodeTable58x5F }, /* 60 */ { &decoder_ud64, NULL }, /* 61 */ { &decoder_ud64, NULL }, /* 62 */ { &decoder_evex64, NULL }, // EVEX prefix /* 63 */ { &decoder64_modrm, BxOpcodeTable63_64 }, /* 64 */ { &decoder_ud64, NULL }, // FS: /* 65 */ { &decoder_ud64, NULL }, // GS: /* 66 */ { &decoder_ud64, NULL }, // OSIZE: /* 67 */ { &decoder_ud64, NULL }, // ASIZE: /* 68 */ { &decoder64, BxOpcodeTable68 }, /* 69 */ { &decoder64_modrm, BxOpcodeTable69 }, /* 6A */ { &decoder64, BxOpcodeTable6A }, /* 6B */ { &decoder64_modrm, BxOpcodeTable6B }, /* 6C */ { &decoder64, BxOpcodeTable6C }, /* 6D */ { &decoder64, BxOpcodeTable6D }, /* 6E */ { &decoder64, BxOpcodeTable6E }, /* 6F */ { &decoder64, BxOpcodeTable6F }, /* 70 */ { &decoder64, BxOpcodeTable70_64 }, /* 71 */ { &decoder64, BxOpcodeTable71_64 }, /* 72 */ { &decoder64, BxOpcodeTable72_64 }, /* 73 */ { &decoder64, BxOpcodeTable73_64 }, /* 74 */ { &decoder64, BxOpcodeTable74_64 }, /* 75 */ { &decoder64, BxOpcodeTable75_64 }, /* 76 */ { &decoder64, BxOpcodeTable76_64 }, /* 77 */ { &decoder64, BxOpcodeTable77_64 }, /* 78 */ { &decoder64, BxOpcodeTable78_64 }, /* 79 */ { &decoder64, BxOpcodeTable79_64 }, /* 7A */ { &decoder64, BxOpcodeTable7A_64 }, /* 7B */ { &decoder64, BxOpcodeTable7B_64 }, /* 7C */ { &decoder64, BxOpcodeTable7C_64 }, /* 7D */ { &decoder64, BxOpcodeTable7D_64 }, /* 7E */ { &decoder64, BxOpcodeTable7E_64 }, /* 7F */ { &decoder64, BxOpcodeTable7F_64 }, /* 80 */ { &decoder64_modrm, BxOpcodeTable80 }, /* 81 */ { &decoder64_modrm, BxOpcodeTable81 }, /* 82 */ { &decoder_ud64, NULL }, /* 83 */ { &decoder64_modrm, BxOpcodeTable83 }, /* 84 */ { &decoder64_modrm, BxOpcodeTable84 }, /* 85 */ { &decoder64_modrm, BxOpcodeTable85 }, /* 86 */ { &decoder64_modrm, BxOpcodeTable86 }, /* 87 */ { &decoder64_modrm, BxOpcodeTable87 }, /* 88 */ { &decoder64_modrm, BxOpcodeTable88 }, /* 89 */ { &decoder64_modrm, BxOpcodeTable89 }, /* 8A */ { &decoder64_modrm, BxOpcodeTable8A }, /* 8B */ { &decoder64_modrm, BxOpcodeTable8B }, /* 8C */ { &decoder64_modrm, BxOpcodeTable8C }, /* 8D */ { &decoder64_modrm, BxOpcodeTable8D }, /* 8E */ { &decoder64_modrm, BxOpcodeTable8E }, /* 8F */ { &decoder_xop64, BxOpcodeTable8F }, // XOP prefix /* 90 */ { &decoder64_nop, BxOpcodeTable90x97 }, /* 91 */ { &decoder64, BxOpcodeTable90x97 }, /* 92 */ { &decoder64, BxOpcodeTable90x97 }, /* 93 */ { &decoder64, BxOpcodeTable90x97 }, /* 94 */ { &decoder64, BxOpcodeTable90x97 }, /* 95 */ { &decoder64, BxOpcodeTable90x97 }, /* 96 */ { &decoder64, BxOpcodeTable90x97 }, /* 97 */ { &decoder64, BxOpcodeTable90x97 }, /* 98 */ { &decoder64, BxOpcodeTable98 }, /* 99 */ { &decoder64, BxOpcodeTable99 }, /* 9A */ { &decoder_ud64, NULL }, /* 9B */ { &decoder_simple64, BxOpcodeTable9B }, /* 9C */ { &decoder64, BxOpcodeTable9C }, /* 9D */ { &decoder64, BxOpcodeTable9D }, /* 9E */ { &decoder_simple64, BxOpcodeTable9E_64 }, /* 9F */ { &decoder_simple64, BxOpcodeTable9F_64 }, /* A0 */ { &decoder64, BxOpcodeTableA0_64 }, /* A1 */ { &decoder64, BxOpcodeTableA1_64 }, /* A2 */ { &decoder64, BxOpcodeTableA2_64 }, /* A3 */ { &decoder64, BxOpcodeTableA3_64 }, /* A4 */ { &decoder64, BxOpcodeTableA4 }, /* A5 */ { &decoder64, BxOpcodeTableA5 }, /* A6 */ { &decoder64, BxOpcodeTableA6 }, /* A7 */ { &decoder64, BxOpcodeTableA7 }, /* A8 */ { &decoder64, BxOpcodeTableA8 }, /* A9 */ { &decoder64, BxOpcodeTableA9 }, /* AA */ { &decoder64, BxOpcodeTableAA }, /* AB */ { &decoder64, BxOpcodeTableAB }, /* AC */ { &decoder64, BxOpcodeTableAC }, /* AD */ { &decoder64, BxOpcodeTableAD }, /* AE */ { &decoder64, BxOpcodeTableAE }, /* AF */ { &decoder64, BxOpcodeTableAF }, /* B0 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B1 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B2 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B3 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B4 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B5 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B6 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B7 */ { &decoder64, BxOpcodeTableB0xB7 }, /* B8 */ { &decoder64, BxOpcodeTableB8xBF }, /* B9 */ { &decoder64, BxOpcodeTableB8xBF }, /* BA */ { &decoder64, BxOpcodeTableB8xBF }, /* BB */ { &decoder64, BxOpcodeTableB8xBF }, /* BC */ { &decoder64, BxOpcodeTableB8xBF }, /* BD */ { &decoder64, BxOpcodeTableB8xBF }, /* BE */ { &decoder64, BxOpcodeTableB8xBF }, /* BF */ { &decoder64, BxOpcodeTableB8xBF }, /* C0 */ { &decoder64_modrm, BxOpcodeTableC0 }, /* C1 */ { &decoder64_modrm, BxOpcodeTableC1 }, /* C2 */ { &decoder64, BxOpcodeTableC2_64 }, /* C3 */ { &decoder64, BxOpcodeTableC3_64 }, /* C4 */ { &decoder_vex64, NULL }, // VEX prefix /* C5 */ { &decoder_vex64, NULL }, // VEX prefix /* C6 */ { &decoder64_modrm, BxOpcodeTableC6 }, /* C7 */ { &decoder64_modrm, BxOpcodeTableC7 }, /* C8 */ { &decoder64, BxOpcodeTableC8_64 }, /* C9 */ { &decoder64, BxOpcodeTableC9_64 }, /* CA */ { &decoder64, BxOpcodeTableCA }, /* CB */ { &decoder64, BxOpcodeTableCB }, /* CC */ { &decoder_simple64, BxOpcodeTableCC }, /* CD */ { &decoder64, BxOpcodeTableCD }, /* CE */ { &decoder_ud64, NULL }, /* CF */ { &decoder64, BxOpcodeTableCF_64 }, /* D0 */ { &decoder64_modrm, BxOpcodeTableD0 }, /* D1 */ { &decoder64_modrm, BxOpcodeTableD1 }, /* D2 */ { &decoder64_modrm, BxOpcodeTableD2 }, /* D3 */ { &decoder64_modrm, BxOpcodeTableD3 }, /* D4 */ { &decoder_ud64, NULL }, /* D5 */ { &decoder_ud64, NULL }, /* D6 */ { &decoder_ud64, NULL }, /* D7 */ { &decoder_simple64, BxOpcodeTableD7 }, /* D8 */ { &decoder64_fp_escape, NULL }, /* D9 */ { &decoder64_fp_escape, NULL }, /* DA */ { &decoder64_fp_escape, NULL }, /* DB */ { &decoder64_fp_escape, NULL }, /* DC */ { &decoder64_fp_escape, NULL }, /* DD */ { &decoder64_fp_escape, NULL }, /* DE */ { &decoder64_fp_escape, NULL }, /* DF */ { &decoder64_fp_escape, NULL }, /* E0 */ { &decoder64, BxOpcodeTableE0_64 }, /* E1 */ { &decoder64, BxOpcodeTableE1_64 }, /* E2 */ { &decoder64, BxOpcodeTableE2_64 }, /* E3 */ { &decoder64, BxOpcodeTableE3_64 }, /* E4 */ { &decoder64, BxOpcodeTableE4 }, /* E5 */ { &decoder64, BxOpcodeTableE5 }, /* E6 */ { &decoder64, BxOpcodeTableE6 }, /* E7 */ { &decoder64, BxOpcodeTableE7 }, /* E8 */ { &decoder64, BxOpcodeTableE8_64 }, /* E9 */ { &decoder64, BxOpcodeTableE9_64}, /* EA */ { &decoder_ud64, NULL }, /* EB */ { &decoder64, BxOpcodeTableEB_64 }, /* EC */ { &decoder64, BxOpcodeTableEC }, /* ED */ { &decoder64, BxOpcodeTableED }, /* EE */ { &decoder64, BxOpcodeTableEE }, /* EF */ { &decoder64, BxOpcodeTableEF }, /* F0 */ { &decoder_ud64, NULL }, // LOCK /* F1 */ { &decoder_simple64, BxOpcodeTableF1 }, /* F2 */ { &decoder_ud64, NULL }, // REPNE/REPNZ /* F3 */ { &decoder_ud64, NULL }, // REP, REPE/REPZ /* F4 */ { &decoder_simple64, BxOpcodeTableF4 }, /* F5 */ { &decoder_simple64, BxOpcodeTableF5 }, /* F6 */ { &decoder64_modrm, BxOpcodeTableF6 }, /* F7 */ { &decoder64_modrm, BxOpcodeTableF7 }, /* F8 */ { &decoder_simple64, BxOpcodeTableF8 }, /* F9 */ { &decoder_simple64, BxOpcodeTableF9 }, /* FA */ { &decoder_simple64, BxOpcodeTableFA }, /* FB */ { &decoder_simple64, BxOpcodeTableFB }, /* FC */ { &decoder_simple64, BxOpcodeTableFC }, /* FD */ { &decoder_simple64, BxOpcodeTableFD }, /* FE */ { &decoder64_modrm, BxOpcodeTableFE }, /* FF */ { &decoder64_modrm, BxOpcodeTableFF }, /* 0F 00 */ { &decoder64_modrm, BxOpcodeTable0F00 }, /* 0F 01 */ { &decoder64_modrm, BxOpcodeTable0F01 }, /* 0F 02 */ { &decoder64_modrm, BxOpcodeTable0F02 }, /* 0F 03 */ { &decoder64_modrm, BxOpcodeTable0F03 }, /* 0F 04 */ { &decoder_ud64, NULL }, /* 0F 05 */ { &decoder_simple64, BxOpcodeTable0F05_64 }, /* 0F 06 */ { &decoder_simple64, BxOpcodeTable0F06 }, /* 0F 07 */ { &decoder_simple64, BxOpcodeTable0F07_64 }, /* 0F 08 */ { &decoder_simple64, BxOpcodeTable0F08 }, /* 0F 09 */ { &decoder_simple64, BxOpcodeTable0F09 }, /* 0F 0A */ { &decoder_ud64, NULL }, /* 0F 0B */ { &decoder_simple64, BxOpcodeTable0F0B }, /* 0F 0C */ { &decoder_ud64, NULL }, /* 0F 0D */ { &decoder64_modrm, BxOpcodeTable0F0D }, /* 0F 0E */ { &decoder_simple64, BxOpcodeTable0F0E }, /* 0F 0F */ { &decoder64_3dnow, NULL }, /* 0F 10 */ { &decoder64_modrm, BxOpcodeTable0F10 }, /* 0F 11 */ { &decoder64_modrm, BxOpcodeTable0F11 }, /* 0F 12 */ { &decoder64_modrm, BxOpcodeTable0F12 }, /* 0F 13 */ { &decoder64_modrm, BxOpcodeTable0F13 }, /* 0F 14 */ { &decoder64_modrm, BxOpcodeTable0F14 }, /* 0F 15 */ { &decoder64_modrm, BxOpcodeTable0F15 }, /* 0F 16 */ { &decoder64_modrm, BxOpcodeTable0F16 }, /* 0F 17 */ { &decoder64_modrm, BxOpcodeTable0F17 }, /* 0F 18 */ { &decoder64_modrm, BxOpcodeTable0F18 }, /* 0F 19 */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1A */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1B */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1C */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1D */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1E */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 1F */ { &decoder64_modrm, BxOpcodeTableMultiByteNOP }, /* 0F 20 */ { &decoder_creg64, BxOpcodeTable0F20_64 }, /* 0F 21 */ { &decoder_creg64, BxOpcodeTable0F21_64 }, /* 0F 22 */ { &decoder_creg64, BxOpcodeTable0F22_64 }, /* 0F 23 */ { &decoder_creg64, BxOpcodeTable0F23_64 }, /* 0F 24 */ { &decoder_ud64, NULL }, /* 0F 25 */ { &decoder_ud64, NULL }, /* 0F 26 */ { &decoder_ud64, NULL }, /* 0F 27 */ { &decoder_ud64, NULL }, /* 0F 28 */ { &decoder64_modrm, BxOpcodeTable0F28 }, /* 0F 29 */ { &decoder64_modrm, BxOpcodeTable0F29 }, /* 0F 2A */ { &decoder64_modrm, BxOpcodeTable0F2A }, /* 0F 2B */ { &decoder64_modrm, BxOpcodeTable0F2B }, /* 0F 2C */ { &decoder64_modrm, BxOpcodeTable0F2C }, /* 0F 2D */ { &decoder64_modrm, BxOpcodeTable0F2D }, /* 0F 2E */ { &decoder64_modrm, BxOpcodeTable0F2E }, /* 0F 2F */ { &decoder64_modrm, BxOpcodeTable0F2F }, /* 0F 30 */ { &decoder_simple64, BxOpcodeTable0F30 }, /* 0F 31 */ { &decoder_simple64, BxOpcodeTable0F31 }, /* 0F 32 */ { &decoder_simple64, BxOpcodeTable0F32 }, /* 0F 33 */ { &decoder_simple64, BxOpcodeTable0F33 }, /* 0F 34 */ { &decoder_simple64, BxOpcodeTable0F34 }, /* 0F 35 */ { &decoder_simple64, BxOpcodeTable0F35 }, /* 0F 36 */ { &decoder_ud64, NULL }, /* 0F 37 */ { &decoder64, BxOpcodeTable0F37 }, /* 0F 38 */ { &decoder_ud64, NULL }, // 3-byte escape /* 0F 39 */ { &decoder_ud64, NULL }, /* 0F 3A */ { &decoder_ud64, NULL }, // 3-byte escape /* 0F 3B */ { &decoder_ud64, NULL }, /* 0F 3C */ { &decoder_ud64, NULL }, /* 0F 3D */ { &decoder_ud64, NULL }, /* 0F 3E */ { &decoder_ud64, NULL }, /* 0F 3F */ { &decoder_ud64, NULL }, /* 0F 40 */ { &decoder64_modrm, BxOpcodeTable0F40 }, /* 0F 41 */ { &decoder64_modrm, BxOpcodeTable0F41 }, /* 0F 42 */ { &decoder64_modrm, BxOpcodeTable0F42 }, /* 0F 43 */ { &decoder64_modrm, BxOpcodeTable0F43 }, /* 0F 44 */ { &decoder64_modrm, BxOpcodeTable0F44 }, /* 0F 45 */ { &decoder64_modrm, BxOpcodeTable0F45 }, /* 0F 46 */ { &decoder64_modrm, BxOpcodeTable0F46 }, /* 0F 47 */ { &decoder64_modrm, BxOpcodeTable0F47 }, /* 0F 48 */ { &decoder64_modrm, BxOpcodeTable0F48 }, /* 0F 49 */ { &decoder64_modrm, BxOpcodeTable0F49 }, /* 0F 4A */ { &decoder64_modrm, BxOpcodeTable0F4A }, /* 0F 4B */ { &decoder64_modrm, BxOpcodeTable0F4B }, /* 0F 4C */ { &decoder64_modrm, BxOpcodeTable0F4C }, /* 0F 4D */ { &decoder64_modrm, BxOpcodeTable0F4D }, /* 0F 4E */ { &decoder64_modrm, BxOpcodeTable0F4E }, /* 0F 4F */ { &decoder64_modrm, BxOpcodeTable0F4F }, /* 0F 50 */ { &decoder64_modrm, BxOpcodeTable0F50 }, /* 0F 51 */ { &decoder64_modrm, BxOpcodeTable0F51 }, /* 0F 52 */ { &decoder64_modrm, BxOpcodeTable0F52 }, /* 0F 53 */ { &decoder64_modrm, BxOpcodeTable0F53 }, /* 0F 54 */ { &decoder64_modrm, BxOpcodeTable0F54 }, /* 0F 55 */ { &decoder64_modrm, BxOpcodeTable0F55 }, /* 0F 56 */ { &decoder64_modrm, BxOpcodeTable0F56 }, /* 0F 57 */ { &decoder64_modrm, BxOpcodeTable0F57 }, /* 0F 58 */ { &decoder64_modrm, BxOpcodeTable0F58 }, /* 0F 59 */ { &decoder64_modrm, BxOpcodeTable0F59 }, /* 0F 5A */ { &decoder64_modrm, BxOpcodeTable0F5A }, /* 0F 5B */ { &decoder64_modrm, BxOpcodeTable0F5B }, /* 0F 5C */ { &decoder64_modrm, BxOpcodeTable0F5C }, /* 0F 5D */ { &decoder64_modrm, BxOpcodeTable0F5D }, /* 0F 5E */ { &decoder64_modrm, BxOpcodeTable0F5E }, /* 0F 5F */ { &decoder64_modrm, BxOpcodeTable0F5F }, /* 0F 60 */ { &decoder64_modrm, BxOpcodeTable0F60 }, /* 0F 61 */ { &decoder64_modrm, BxOpcodeTable0F61 }, /* 0F 62 */ { &decoder64_modrm, BxOpcodeTable0F62 }, /* 0F 63 */ { &decoder64_modrm, BxOpcodeTable0F63 }, /* 0F 64 */ { &decoder64_modrm, BxOpcodeTable0F64 }, /* 0F 65 */ { &decoder64_modrm, BxOpcodeTable0F65 }, /* 0F 66 */ { &decoder64_modrm, BxOpcodeTable0F66 }, /* 0F 67 */ { &decoder64_modrm, BxOpcodeTable0F67 }, /* 0F 68 */ { &decoder64_modrm, BxOpcodeTable0F68 }, /* 0F 69 */ { &decoder64_modrm, BxOpcodeTable0F69 }, /* 0F 6A */ { &decoder64_modrm, BxOpcodeTable0F6A }, /* 0F 6B */ { &decoder64_modrm, BxOpcodeTable0F6B }, /* 0F 6C */ { &decoder64_modrm, BxOpcodeTable0F6C }, /* 0F 6D */ { &decoder64_modrm, BxOpcodeTable0F6D }, /* 0F 6E */ { &decoder64_modrm, BxOpcodeTable0F6E }, /* 0F 6F */ { &decoder64_modrm, BxOpcodeTable0F6F }, /* 0F 70 */ { &decoder64_modrm, BxOpcodeTable0F70 }, /* 0F 71 */ { &decoder64_modrm, BxOpcodeTable0F71 }, /* 0F 72 */ { &decoder64_modrm, BxOpcodeTable0F72 }, /* 0F 73 */ { &decoder64_modrm, BxOpcodeTable0F73 }, /* 0F 74 */ { &decoder64_modrm, BxOpcodeTable0F74 }, /* 0F 75 */ { &decoder64_modrm, BxOpcodeTable0F75 }, /* 0F 76 */ { &decoder64_modrm, BxOpcodeTable0F76 }, /* 0F 77 */ { &decoder64, BxOpcodeTable0F77 }, /* 0F 78 */ { &decoder64_modrm, BxOpcodeTable0F78 }, /* 0F 79 */ { &decoder64_modrm, BxOpcodeTable0F79 }, /* 0F 7A */ { &decoder_ud64, NULL }, /* 0F 7B */ { &decoder_ud64, NULL }, /* 0F 7C */ { &decoder64_modrm, BxOpcodeTable0F7C }, /* 0F 7D */ { &decoder64_modrm, BxOpcodeTable0F7D }, /* 0F 7E */ { &decoder64_modrm, BxOpcodeTable0F7E }, /* 0F 7F */ { &decoder64_modrm, BxOpcodeTable0F7F }, /* 0F 80 */ { &decoder64, BxOpcodeTable0F80_64 }, /* 0F 81 */ { &decoder64, BxOpcodeTable0F81_64 }, /* 0F 82 */ { &decoder64, BxOpcodeTable0F82_64 }, /* 0F 83 */ { &decoder64, BxOpcodeTable0F83_64 }, /* 0F 84 */ { &decoder64, BxOpcodeTable0F84_64 }, /* 0F 85 */ { &decoder64, BxOpcodeTable0F85_64 }, /* 0F 86 */ { &decoder64, BxOpcodeTable0F86_64 }, /* 0F 87 */ { &decoder64, BxOpcodeTable0F87_64 }, /* 0F 88 */ { &decoder64, BxOpcodeTable0F88_64 }, /* 0F 89 */ { &decoder64, BxOpcodeTable0F89_64 }, /* 0F 8A */ { &decoder64, BxOpcodeTable0F8A_64 }, /* 0F 8B */ { &decoder64, BxOpcodeTable0F8B_64 }, /* 0F 8C */ { &decoder64, BxOpcodeTable0F8C_64 }, /* 0F 8D */ { &decoder64, BxOpcodeTable0F8D_64 }, /* 0F 8E */ { &decoder64, BxOpcodeTable0F8E_64 }, /* 0F 8F */ { &decoder64, BxOpcodeTable0F8F_64 }, /* 0F 90 */ { &decoder64_modrm, BxOpcodeTable0F90 }, /* 0F 91 */ { &decoder64_modrm, BxOpcodeTable0F91 }, /* 0F 92 */ { &decoder64_modrm, BxOpcodeTable0F92 }, /* 0F 93 */ { &decoder64_modrm, BxOpcodeTable0F93 }, /* 0F 94 */ { &decoder64_modrm, BxOpcodeTable0F94 }, /* 0F 95 */ { &decoder64_modrm, BxOpcodeTable0F95 }, /* 0F 96 */ { &decoder64_modrm, BxOpcodeTable0F96 }, /* 0F 97 */ { &decoder64_modrm, BxOpcodeTable0F97 }, /* 0F 98 */ { &decoder64_modrm, BxOpcodeTable0F98 }, /* 0F 99 */ { &decoder64_modrm, BxOpcodeTable0F99 }, /* 0F 9A */ { &decoder64_modrm, BxOpcodeTable0F9A }, /* 0F 9B */ { &decoder64_modrm, BxOpcodeTable0F9B }, /* 0F 9C */ { &decoder64_modrm, BxOpcodeTable0F9C }, /* 0F 9D */ { &decoder64_modrm, BxOpcodeTable0F9D }, /* 0F 9E */ { &decoder64_modrm, BxOpcodeTable0F9E }, /* 0F 9F */ { &decoder64_modrm, BxOpcodeTable0F9F }, /* 0F A0 */ { &decoder64, BxOpcodeTable0FA0 }, /* 0F A1 */ { &decoder64, BxOpcodeTable0FA1 }, /* 0F A2 */ { &decoder_simple64, BxOpcodeTable0FA2 }, /* 0F A3 */ { &decoder64_modrm, BxOpcodeTable0FA3 }, /* 0F A4 */ { &decoder64_modrm, BxOpcodeTable0FA4 }, /* 0F A5 */ { &decoder64_modrm, BxOpcodeTable0FA5 }, /* 0F A6 */ { &decoder_ud64, NULL }, /* 0F A7 */ { &decoder_ud64, NULL }, /* 0F A8 */ { &decoder64, BxOpcodeTable0FA8 }, /* 0F A9 */ { &decoder64, BxOpcodeTable0FA9 }, /* 0F AA */ { &decoder_simple64, BxOpcodeTable0FAA }, /* 0F AB */ { &decoder64_modrm, BxOpcodeTable0FAB }, /* 0F AC */ { &decoder64_modrm, BxOpcodeTable0FAC }, /* 0F AD */ { &decoder64_modrm, BxOpcodeTable0FAD }, /* 0F AE */ { &decoder64_modrm, BxOpcodeTable0FAE }, /* 0F AF */ { &decoder64_modrm, BxOpcodeTable0FAF }, /* 0F B0 */ { &decoder64_modrm, BxOpcodeTable0FB0 }, /* 0F B1 */ { &decoder64_modrm, BxOpcodeTable0FB1 }, /* 0F B2 */ { &decoder64_modrm, BxOpcodeTable0FB2 }, /* 0F B3 */ { &decoder64_modrm, BxOpcodeTable0FB3 }, /* 0F B4 */ { &decoder64_modrm, BxOpcodeTable0FB4 }, /* 0F B5 */ { &decoder64_modrm, BxOpcodeTable0FB5 }, /* 0F B6 */ { &decoder64_modrm, BxOpcodeTable0FB6 }, /* 0F B7 */ { &decoder64_modrm, BxOpcodeTable0FB7 }, /* 0F B8 */ { &decoder64_modrm, BxOpcodeTable0FB8 }, /* 0F B9 */ { &decoder64_modrm, BxOpcodeTable0FB9 }, /* 0F BA */ { &decoder64_modrm, BxOpcodeTable0FBA }, /* 0F BB */ { &decoder64_modrm, BxOpcodeTable0FBB }, /* 0F BC */ { &decoder64_modrm, BxOpcodeTable0FBC }, /* 0F BD */ { &decoder64_modrm, BxOpcodeTable0FBD }, /* 0F BE */ { &decoder64_modrm, BxOpcodeTable0FBE }, /* 0F BF */ { &decoder64_modrm, BxOpcodeTable0FBF }, /* 0F C0 */ { &decoder64_modrm, BxOpcodeTable0FC0 }, /* 0F C1 */ { &decoder64_modrm, BxOpcodeTable0FC1 }, /* 0F C2 */ { &decoder64_modrm, BxOpcodeTable0FC2 }, /* 0F C3 */ { &decoder64_modrm, BxOpcodeTable0FC3 }, /* 0F C4 */ { &decoder64_modrm, BxOpcodeTable0FC4 }, /* 0F C5 */ { &decoder64_modrm, BxOpcodeTable0FC5 }, /* 0F C6 */ { &decoder64_modrm, BxOpcodeTable0FC6 }, /* 0F C7 */ { &decoder64_modrm, BxOpcodeTable0FC7 }, /* 0F C8 */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F C9 */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CA */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CB */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CC */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CD */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CE */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F CF */ { &decoder64, BxOpcodeTable0FC8x0FCF }, /* 0F D0 */ { &decoder64_modrm, BxOpcodeTable0FD0 }, /* 0F D1 */ { &decoder64_modrm, BxOpcodeTable0FD1 }, /* 0F D2 */ { &decoder64_modrm, BxOpcodeTable0FD2 }, /* 0F D3 */ { &decoder64_modrm, BxOpcodeTable0FD3 }, /* 0F D4 */ { &decoder64_modrm, BxOpcodeTable0FD4 }, /* 0F D5 */ { &decoder64_modrm, BxOpcodeTable0FD5 }, /* 0F D6 */ { &decoder64_modrm, BxOpcodeTable0FD6 }, /* 0F D7 */ { &decoder64_modrm, BxOpcodeTable0FD7 }, /* 0F D8 */ { &decoder64_modrm, BxOpcodeTable0FD8 }, /* 0F D9 */ { &decoder64_modrm, BxOpcodeTable0FD9 }, /* 0F DA */ { &decoder64_modrm, BxOpcodeTable0FDA }, /* 0F DB */ { &decoder64_modrm, BxOpcodeTable0FDB }, /* 0F DC */ { &decoder64_modrm, BxOpcodeTable0FDC }, /* 0F DD */ { &decoder64_modrm, BxOpcodeTable0FDD }, /* 0F DE */ { &decoder64_modrm, BxOpcodeTable0FDE }, /* 0F DF */ { &decoder64_modrm, BxOpcodeTable0FDF }, /* 0F E0 */ { &decoder64_modrm, BxOpcodeTable0FE0 }, /* 0F E1 */ { &decoder64_modrm, BxOpcodeTable0FE1 }, /* 0F E2 */ { &decoder64_modrm, BxOpcodeTable0FE2 }, /* 0F E3 */ { &decoder64_modrm, BxOpcodeTable0FE3 }, /* 0F E4 */ { &decoder64_modrm, BxOpcodeTable0FE4 }, /* 0F E5 */ { &decoder64_modrm, BxOpcodeTable0FE5 }, /* 0F E6 */ { &decoder64_modrm, BxOpcodeTable0FE6 }, /* 0F E7 */ { &decoder64_modrm, BxOpcodeTable0FE7 }, /* 0F E8 */ { &decoder64_modrm, BxOpcodeTable0FE8 }, /* 0F E9 */ { &decoder64_modrm, BxOpcodeTable0FE9 }, /* 0F EA */ { &decoder64_modrm, BxOpcodeTable0FEA }, /* 0F EB */ { &decoder64_modrm, BxOpcodeTable0FEB }, /* 0F EC */ { &decoder64_modrm, BxOpcodeTable0FEC }, /* 0F ED */ { &decoder64_modrm, BxOpcodeTable0FED }, /* 0F EE */ { &decoder64_modrm, BxOpcodeTable0FEE }, /* 0F EF */ { &decoder64_modrm, BxOpcodeTable0FEF }, /* 0F F0 */ { &decoder64_modrm, BxOpcodeTable0FF0 }, /* 0F F1 */ { &decoder64_modrm, BxOpcodeTable0FF1 }, /* 0F F2 */ { &decoder64_modrm, BxOpcodeTable0FF2 }, /* 0F F3 */ { &decoder64_modrm, BxOpcodeTable0FF3 }, /* 0F F4 */ { &decoder64_modrm, BxOpcodeTable0FF4 }, /* 0F F5 */ { &decoder64_modrm, BxOpcodeTable0FF5 }, /* 0F F6 */ { &decoder64_modrm, BxOpcodeTable0FF6 }, /* 0F F7 */ { &decoder64_modrm, BxOpcodeTable0FF7 }, /* 0F F8 */ { &decoder64_modrm, BxOpcodeTable0FF8 }, /* 0F F9 */ { &decoder64_modrm, BxOpcodeTable0FF9 }, /* 0F FA */ { &decoder64_modrm, BxOpcodeTable0FFA }, /* 0F FB */ { &decoder64_modrm, BxOpcodeTable0FFB }, /* 0F FC */ { &decoder64_modrm, BxOpcodeTable0FFC }, /* 0F FD */ { &decoder64_modrm, BxOpcodeTable0FFD }, /* 0F FE */ { &decoder64_modrm, BxOpcodeTable0FFE }, /* 0F FF */ { &decoder_simple64, BxOpcodeTable0FFF }, // 3-byte opcode 0x0F 0x38 /* 0F 38 00 */ { &decoder64_modrm, BxOpcodeTable0F3800 }, /* 0F 38 01 */ { &decoder64_modrm, BxOpcodeTable0F3801 }, /* 0F 38 02 */ { &decoder64_modrm, BxOpcodeTable0F3802 }, /* 0F 38 03 */ { &decoder64_modrm, BxOpcodeTable0F3803 }, /* 0F 38 04 */ { &decoder64_modrm, BxOpcodeTable0F3804 }, /* 0F 38 05 */ { &decoder64_modrm, BxOpcodeTable0F3805 }, /* 0F 38 06 */ { &decoder64_modrm, BxOpcodeTable0F3806 }, /* 0F 38 07 */ { &decoder64_modrm, BxOpcodeTable0F3807 }, /* 0F 38 08 */ { &decoder64_modrm, BxOpcodeTable0F3808 }, /* 0F 38 09 */ { &decoder64_modrm, BxOpcodeTable0F3809 }, /* 0F 38 0A */ { &decoder64_modrm, BxOpcodeTable0F380A }, /* 0F 38 0B */ { &decoder64_modrm, BxOpcodeTable0F380B }, /* 0F 38 0C */ { &decoder_ud64, NULL }, /* 0F 38 0D */ { &decoder_ud64, NULL }, /* 0F 38 0E */ { &decoder_ud64, NULL }, /* 0F 38 0F */ { &decoder_ud64, NULL }, /* 0F 38 10 */ { &decoder64_modrm, BxOpcodeTable0F3810 }, /* 0F 38 11 */ { &decoder_ud64, NULL }, /* 0F 38 12 */ { &decoder_ud64, NULL }, /* 0F 38 13 */ { &decoder_ud64, NULL }, /* 0F 38 14 */ { &decoder64_modrm, BxOpcodeTable0F3814 }, /* 0F 38 15 */ { &decoder64_modrm, BxOpcodeTable0F3815 }, /* 0F 38 16 */ { &decoder_ud64, NULL }, /* 0F 38 17 */ { &decoder64_modrm, BxOpcodeTable0F3817 }, /* 0F 38 18 */ { &decoder_ud64, NULL }, /* 0F 38 19 */ { &decoder_ud64, NULL }, /* 0F 38 1A */ { &decoder_ud64, NULL }, /* 0F 38 1B */ { &decoder_ud64, NULL }, /* 0F 38 1C */ { &decoder64_modrm, BxOpcodeTable0F381C }, /* 0F 38 1D */ { &decoder64_modrm, BxOpcodeTable0F381D }, /* 0F 38 1E */ { &decoder64_modrm, BxOpcodeTable0F381E }, /* 0F 38 1F */ { &decoder_ud64, NULL }, /* 0F 38 20 */ { &decoder64_modrm, BxOpcodeTable0F3820 }, /* 0F 38 21 */ { &decoder64_modrm, BxOpcodeTable0F3821 }, /* 0F 38 22 */ { &decoder64_modrm, BxOpcodeTable0F3822 }, /* 0F 38 23 */ { &decoder64_modrm, BxOpcodeTable0F3823 }, /* 0F 38 24 */ { &decoder64_modrm, BxOpcodeTable0F3824 }, /* 0F 38 25 */ { &decoder64_modrm, BxOpcodeTable0F3825 }, /* 0F 38 26 */ { &decoder_ud64, NULL }, /* 0F 38 27 */ { &decoder_ud64, NULL }, /* 0F 38 28 */ { &decoder64_modrm, BxOpcodeTable0F3828 }, /* 0F 38 29 */ { &decoder64_modrm, BxOpcodeTable0F3829 }, /* 0F 38 2A */ { &decoder64_modrm, BxOpcodeTable0F382A }, /* 0F 38 2B */ { &decoder64_modrm, BxOpcodeTable0F382B }, /* 0F 38 2C */ { &decoder_ud64, NULL }, /* 0F 38 2D */ { &decoder_ud64, NULL }, /* 0F 38 2E */ { &decoder_ud64, NULL }, /* 0F 38 2F */ { &decoder_ud64, NULL }, /* 0F 38 30 */ { &decoder64_modrm, BxOpcodeTable0F3830 }, /* 0F 38 31 */ { &decoder64_modrm, BxOpcodeTable0F3831 }, /* 0F 38 32 */ { &decoder64_modrm, BxOpcodeTable0F3832 }, /* 0F 38 33 */ { &decoder64_modrm, BxOpcodeTable0F3833 }, /* 0F 38 34 */ { &decoder64_modrm, BxOpcodeTable0F3834 }, /* 0F 38 35 */ { &decoder64_modrm, BxOpcodeTable0F3835 }, /* 0F 38 36 */ { &decoder_ud64, NULL }, /* 0F 38 37 */ { &decoder64_modrm, BxOpcodeTable0F3837 }, /* 0F 38 38 */ { &decoder64_modrm, BxOpcodeTable0F3838 }, /* 0F 38 39 */ { &decoder64_modrm, BxOpcodeTable0F3839 }, /* 0F 38 3A */ { &decoder64_modrm, BxOpcodeTable0F383A }, /* 0F 38 3B */ { &decoder64_modrm, BxOpcodeTable0F383B }, /* 0F 38 3C */ { &decoder64_modrm, BxOpcodeTable0F383C }, /* 0F 38 3D */ { &decoder64_modrm, BxOpcodeTable0F383D }, /* 0F 38 3E */ { &decoder64_modrm, BxOpcodeTable0F383E }, /* 0F 38 3F */ { &decoder64_modrm, BxOpcodeTable0F383F }, /* 0F 38 40 */ { &decoder64_modrm, BxOpcodeTable0F3840 }, /* 0F 38 41 */ { &decoder64_modrm, BxOpcodeTable0F3841 }, /* 0F 38 42 */ { &decoder_ud64, NULL }, /* 0F 38 43 */ { &decoder_ud64, NULL }, /* 0F 38 44 */ { &decoder_ud64, NULL }, /* 0F 38 45 */ { &decoder_ud64, NULL }, /* 0F 38 46 */ { &decoder_ud64, NULL }, /* 0F 38 47 */ { &decoder_ud64, NULL }, /* 0F 38 48 */ { &decoder_ud64, NULL }, /* 0F 38 49 */ { &decoder_ud64, NULL }, /* 0F 38 4A */ { &decoder_ud64, NULL }, /* 0F 38 4B */ { &decoder_ud64, NULL }, /* 0F 38 4C */ { &decoder_ud64, NULL }, /* 0F 38 4D */ { &decoder_ud64, NULL }, /* 0F 38 4E */ { &decoder_ud64, NULL }, /* 0F 38 4F */ { &decoder_ud64, NULL }, /* 0F 38 50 */ { &decoder_ud64, NULL }, /* 0F 38 51 */ { &decoder_ud64, NULL }, /* 0F 38 52 */ { &decoder_ud64, NULL }, /* 0F 38 53 */ { &decoder_ud64, NULL }, /* 0F 38 54 */ { &decoder_ud64, NULL }, /* 0F 38 55 */ { &decoder_ud64, NULL }, /* 0F 38 56 */ { &decoder_ud64, NULL }, /* 0F 38 57 */ { &decoder_ud64, NULL }, /* 0F 38 58 */ { &decoder_ud64, NULL }, /* 0F 38 59 */ { &decoder_ud64, NULL }, /* 0F 38 5A */ { &decoder_ud64, NULL }, /* 0F 38 5B */ { &decoder_ud64, NULL }, /* 0F 38 5C */ { &decoder_ud64, NULL }, /* 0F 38 5D */ { &decoder_ud64, NULL }, /* 0F 38 5E */ { &decoder_ud64, NULL }, /* 0F 38 5F */ { &decoder_ud64, NULL }, /* 0F 38 60 */ { &decoder_ud64, NULL }, /* 0F 38 61 */ { &decoder_ud64, NULL }, /* 0F 38 62 */ { &decoder_ud64, NULL }, /* 0F 38 63 */ { &decoder_ud64, NULL }, /* 0F 38 64 */ { &decoder_ud64, NULL }, /* 0F 38 65 */ { &decoder_ud64, NULL }, /* 0F 38 66 */ { &decoder_ud64, NULL }, /* 0F 38 67 */ { &decoder_ud64, NULL }, /* 0F 38 68 */ { &decoder_ud64, NULL }, /* 0F 38 69 */ { &decoder_ud64, NULL }, /* 0F 38 6A */ { &decoder_ud64, NULL }, /* 0F 38 6B */ { &decoder_ud64, NULL }, /* 0F 38 6C */ { &decoder_ud64, NULL }, /* 0F 38 6D */ { &decoder_ud64, NULL }, /* 0F 38 6E */ { &decoder_ud64, NULL }, /* 0F 38 6F */ { &decoder_ud64, NULL }, /* 0F 38 70 */ { &decoder_ud64, NULL }, /* 0F 38 71 */ { &decoder_ud64, NULL }, /* 0F 38 72 */ { &decoder_ud64, NULL }, /* 0F 38 73 */ { &decoder_ud64, NULL }, /* 0F 38 74 */ { &decoder_ud64, NULL }, /* 0F 38 75 */ { &decoder_ud64, NULL }, /* 0F 38 76 */ { &decoder_ud64, NULL }, /* 0F 38 77 */ { &decoder_ud64, NULL }, /* 0F 38 78 */ { &decoder_ud64, NULL }, /* 0F 38 79 */ { &decoder_ud64, NULL }, /* 0F 38 7A */ { &decoder_ud64, NULL }, /* 0F 38 7B */ { &decoder_ud64, NULL }, /* 0F 38 7C */ { &decoder_ud64, NULL }, /* 0F 38 7D */ { &decoder_ud64, NULL }, /* 0F 38 7E */ { &decoder_ud64, NULL }, /* 0F 38 7F */ { &decoder_ud64, NULL }, /* 0F 38 80 */ { &decoder64_modrm, BxOpcodeTable0F3880 }, /* 0F 38 81 */ { &decoder64_modrm, BxOpcodeTable0F3881 }, /* 0F 38 82 */ { &decoder64_modrm, BxOpcodeTable0F3882 }, /* 0F 38 83 */ { &decoder_ud64, NULL }, /* 0F 38 84 */ { &decoder_ud64, NULL }, /* 0F 38 85 */ { &decoder_ud64, NULL }, /* 0F 38 86 */ { &decoder_ud64, NULL }, /* 0F 38 87 */ { &decoder_ud64, NULL }, /* 0F 38 88 */ { &decoder_ud64, NULL }, /* 0F 38 89 */ { &decoder_ud64, NULL }, /* 0F 38 8A */ { &decoder_ud64, NULL }, /* 0F 38 8B */ { &decoder_ud64, NULL }, /* 0F 38 8C */ { &decoder_ud64, NULL }, /* 0F 38 8D */ { &decoder_ud64, NULL }, /* 0F 38 8E */ { &decoder_ud64, NULL }, /* 0F 38 8F */ { &decoder_ud64, NULL }, /* 0F 38 90 */ { &decoder_ud64, NULL }, /* 0F 38 91 */ { &decoder_ud64, NULL }, /* 0F 38 92 */ { &decoder_ud64, NULL }, /* 0F 38 93 */ { &decoder_ud64, NULL }, /* 0F 38 94 */ { &decoder_ud64, NULL }, /* 0F 38 95 */ { &decoder_ud64, NULL }, /* 0F 38 96 */ { &decoder_ud64, NULL }, /* 0F 38 97 */ { &decoder_ud64, NULL }, /* 0F 38 98 */ { &decoder_ud64, NULL }, /* 0F 38 99 */ { &decoder_ud64, NULL }, /* 0F 38 9A */ { &decoder_ud64, NULL }, /* 0F 38 9B */ { &decoder_ud64, NULL }, /* 0F 38 9C */ { &decoder_ud64, NULL }, /* 0F 38 9D */ { &decoder_ud64, NULL }, /* 0F 38 9E */ { &decoder_ud64, NULL }, /* 0F 38 9F */ { &decoder_ud64, NULL }, /* 0F 38 A0 */ { &decoder_ud64, NULL }, /* 0F 38 A1 */ { &decoder_ud64, NULL }, /* 0F 38 A2 */ { &decoder_ud64, NULL }, /* 0F 38 A3 */ { &decoder_ud64, NULL }, /* 0F 38 A4 */ { &decoder_ud64, NULL }, /* 0F 38 A5 */ { &decoder_ud64, NULL }, /* 0F 38 A6 */ { &decoder_ud64, NULL }, /* 0F 38 A7 */ { &decoder_ud64, NULL }, /* 0F 38 A8 */ { &decoder_ud64, NULL }, /* 0F 38 A9 */ { &decoder_ud64, NULL }, /* 0F 38 AA */ { &decoder_ud64, NULL }, /* 0F 38 AB */ { &decoder_ud64, NULL }, /* 0F 38 AC */ { &decoder_ud64, NULL }, /* 0F 38 AD */ { &decoder_ud64, NULL }, /* 0F 38 AE */ { &decoder_ud64, NULL }, /* 0F 38 AF */ { &decoder_ud64, NULL }, /* 0F 38 B0 */ { &decoder_ud64, NULL }, /* 0F 38 B1 */ { &decoder_ud64, NULL }, /* 0F 38 B2 */ { &decoder_ud64, NULL }, /* 0F 38 B3 */ { &decoder_ud64, NULL }, /* 0F 38 B4 */ { &decoder_ud64, NULL }, /* 0F 38 B5 */ { &decoder_ud64, NULL }, /* 0F 38 B6 */ { &decoder_ud64, NULL }, /* 0F 38 B7 */ { &decoder_ud64, NULL }, /* 0F 38 B8 */ { &decoder_ud64, NULL }, /* 0F 38 B9 */ { &decoder_ud64, NULL }, /* 0F 38 BA */ { &decoder_ud64, NULL }, /* 0F 38 BB */ { &decoder_ud64, NULL }, /* 0F 38 BC */ { &decoder_ud64, NULL }, /* 0F 38 BD */ { &decoder_ud64, NULL }, /* 0F 38 BE */ { &decoder_ud64, NULL }, /* 0F 38 BF */ { &decoder_ud64, NULL }, /* 0F 38 C0 */ { &decoder_ud64, NULL }, /* 0F 38 C1 */ { &decoder_ud64, NULL }, /* 0F 38 C2 */ { &decoder_ud64, NULL }, /* 0F 38 C3 */ { &decoder_ud64, NULL }, /* 0F 38 C4 */ { &decoder_ud64, NULL }, /* 0F 38 C5 */ { &decoder_ud64, NULL }, /* 0F 38 C6 */ { &decoder_ud64, NULL }, /* 0F 38 C7 */ { &decoder_ud64, NULL }, /* 0F 38 C8 */ { &decoder64_modrm, BxOpcodeTable0F38C8 }, /* 0F 38 C9 */ { &decoder64_modrm, BxOpcodeTable0F38C9 }, /* 0F 38 CA */ { &decoder64_modrm, BxOpcodeTable0F38CA }, /* 0F 38 CB */ { &decoder64_modrm, BxOpcodeTable0F38CB }, /* 0F 38 CC */ { &decoder64_modrm, BxOpcodeTable0F38CC }, /* 0F 38 CD */ { &decoder64_modrm, BxOpcodeTable0F38CD }, /* 0F 38 CE */ { &decoder_ud64, NULL }, /* 0F 38 CF */ { &decoder_ud64, NULL }, /* 0F 38 D0 */ { &decoder_ud64, NULL }, /* 0F 38 D1 */ { &decoder_ud64, NULL }, /* 0F 38 D2 */ { &decoder_ud64, NULL }, /* 0F 38 D3 */ { &decoder_ud64, NULL }, /* 0F 38 D4 */ { &decoder_ud64, NULL }, /* 0F 38 D5 */ { &decoder_ud64, NULL }, /* 0F 38 D6 */ { &decoder_ud64, NULL }, /* 0F 38 D7 */ { &decoder_ud64, NULL }, /* 0F 38 D8 */ { &decoder_ud64, NULL }, /* 0F 38 D9 */ { &decoder_ud64, NULL }, /* 0F 38 DA */ { &decoder_ud64, NULL }, /* 0F 38 DB */ { &decoder64_modrm, BxOpcodeTable0F38DB }, /* 0F 38 DC */ { &decoder64_modrm, BxOpcodeTable0F38DC }, /* 0F 38 DD */ { &decoder64_modrm, BxOpcodeTable0F38DD }, /* 0F 38 DE */ { &decoder64_modrm, BxOpcodeTable0F38DE }, /* 0F 38 DF */ { &decoder64_modrm, BxOpcodeTable0F38DF }, /* 0F 38 E0 */ { &decoder_ud64, NULL }, /* 0F 38 E1 */ { &decoder_ud64, NULL }, /* 0F 38 E2 */ { &decoder_ud64, NULL }, /* 0F 38 E3 */ { &decoder_ud64, NULL }, /* 0F 38 E4 */ { &decoder_ud64, NULL }, /* 0F 38 E5 */ { &decoder_ud64, NULL }, /* 0F 38 E6 */ { &decoder_ud64, NULL }, /* 0F 38 E7 */ { &decoder_ud64, NULL }, /* 0F 38 E8 */ { &decoder_ud64, NULL }, /* 0F 38 E9 */ { &decoder_ud64, NULL }, /* 0F 38 EA */ { &decoder_ud64, NULL }, /* 0F 38 EB */ { &decoder_ud64, NULL }, /* 0F 38 EC */ { &decoder_ud64, NULL }, /* 0F 38 ED */ { &decoder_ud64, NULL }, /* 0F 38 EE */ { &decoder_ud64, NULL }, /* 0F 38 EF */ { &decoder_ud64, NULL }, /* 0F 38 F0 */ { &decoder64_modrm, BxOpcodeTable0F38F0 }, /* 0F 38 F1 */ { &decoder64_modrm, BxOpcodeTable0F38F1 }, /* 0F 38 F2 */ { &decoder_ud64, NULL }, /* 0F 38 F3 */ { &decoder_ud64, NULL }, /* 0F 38 F4 */ { &decoder_ud64, NULL }, /* 0F 38 F5 */ { &decoder_ud64, NULL }, /* 0F 38 F6 */ { &decoder64_modrm, BxOpcodeTable0F38F6 }, /* 0F 38 F7 */ { &decoder_ud64, NULL }, /* 0F 38 F8 */ { &decoder_ud64, NULL }, /* 0F 38 F9 */ { &decoder64_modrm, BxOpcodeTable0F38F6 }, /* 0F 38 FA */ { &decoder_ud64, NULL }, /* 0F 38 FB */ { &decoder_ud64, NULL }, /* 0F 38 FC */ { &decoder_ud64, NULL }, /* 0F 38 FD */ { &decoder_ud64, NULL }, /* 0F 38 FE */ { &decoder_ud64, NULL }, /* 0F 38 FF */ { &decoder_ud64, NULL }, /* 0F 38 00 */ { &decoder_ud64, NULL }, // 3-byte opcode 0x0F 0x3A /* 0F 3A 01 */ { &decoder_ud64, NULL }, /* 0F 3A 02 */ { &decoder_ud64, NULL }, /* 0F 3A 03 */ { &decoder_ud64, NULL }, /* 0F 3A 04 */ { &decoder_ud64, NULL }, /* 0F 3A 05 */ { &decoder_ud64, NULL }, /* 0F 3A 06 */ { &decoder_ud64, NULL }, /* 0F 3A 07 */ { &decoder_ud64, NULL }, /* 0F 3A 08 */ { &decoder64_modrm, BxOpcodeTable0F3A08 }, /* 0F 3A 09 */ { &decoder64_modrm, BxOpcodeTable0F3A09 }, /* 0F 3A 0A */ { &decoder64_modrm, BxOpcodeTable0F3A0A }, /* 0F 3A 0B */ { &decoder64_modrm, BxOpcodeTable0F3A0B }, /* 0F 3A 0C */ { &decoder64_modrm, BxOpcodeTable0F3A0C }, /* 0F 3A 0D */ { &decoder64_modrm, BxOpcodeTable0F3A0D }, /* 0F 3A 0E */ { &decoder64_modrm, BxOpcodeTable0F3A0E }, /* 0F 3A 0F */ { &decoder64_modrm, BxOpcodeTable0F3A0F }, /* 0F 3A 10 */ { &decoder_ud64, NULL }, /* 0F 3A 11 */ { &decoder_ud64, NULL }, /* 0F 3A 12 */ { &decoder_ud64, NULL }, /* 0F 3A 13 */ { &decoder_ud64, NULL }, /* 0F 3A 14 */ { &decoder64_modrm, BxOpcodeTable0F3A14 }, /* 0F 3A 15 */ { &decoder64_modrm, BxOpcodeTable0F3A15 }, /* 0F 3A 16 */ { &decoder64_modrm, BxOpcodeTable0F3A16 }, /* 0F 3A 17 */ { &decoder64_modrm, BxOpcodeTable0F3A17 }, /* 0F 3A 18 */ { &decoder_ud64, NULL }, /* 0F 3A 19 */ { &decoder_ud64, NULL }, /* 0F 3A 1A */ { &decoder_ud64, NULL }, /* 0F 3A 1B */ { &decoder_ud64, NULL }, /* 0F 3A 1C */ { &decoder_ud64, NULL }, /* 0F 3A 1D */ { &decoder_ud64, NULL }, /* 0F 3A 1E */ { &decoder_ud64, NULL }, /* 0F 3A 1F */ { &decoder_ud64, NULL }, /* 0F 3A 20 */ { &decoder64_modrm, BxOpcodeTable0F3A20 }, /* 0F 3A 21 */ { &decoder64_modrm, BxOpcodeTable0F3A21 }, /* 0F 3A 22 */ { &decoder64_modrm, BxOpcodeTable0F3A22 }, /* 0F 3A 23 */ { &decoder_ud64, NULL }, /* 0F 3A 24 */ { &decoder_ud64, NULL }, /* 0F 3A 25 */ { &decoder_ud64, NULL }, /* 0F 3A 26 */ { &decoder_ud64, NULL }, /* 0F 3A 27 */ { &decoder_ud64, NULL }, /* 0F 3A 28 */ { &decoder_ud64, NULL }, /* 0F 3A 29 */ { &decoder_ud64, NULL }, /* 0F 3A 2A */ { &decoder_ud64, NULL }, /* 0F 3A 2B */ { &decoder_ud64, NULL }, /* 0F 3A 2C */ { &decoder_ud64, NULL }, /* 0F 3A 2D */ { &decoder_ud64, NULL }, /* 0F 3A 2E */ { &decoder_ud64, NULL }, /* 0F 3A 2F */ { &decoder_ud64, NULL }, /* 0F 3A 30 */ { &decoder_ud64, NULL }, /* 0F 3A 31 */ { &decoder_ud64, NULL }, /* 0F 3A 32 */ { &decoder_ud64, NULL }, /* 0F 3A 33 */ { &decoder_ud64, NULL }, /* 0F 3A 34 */ { &decoder_ud64, NULL }, /* 0F 3A 35 */ { &decoder_ud64, NULL }, /* 0F 3A 36 */ { &decoder_ud64, NULL }, /* 0F 3A 37 */ { &decoder_ud64, NULL }, /* 0F 3A 38 */ { &decoder_ud64, NULL }, /* 0F 3A 39 */ { &decoder_ud64, NULL }, /* 0F 3A 3A */ { &decoder_ud64, NULL }, /* 0F 3A 3B */ { &decoder_ud64, NULL }, /* 0F 3A 3C */ { &decoder_ud64, NULL }, /* 0F 3A 3D */ { &decoder_ud64, NULL }, /* 0F 3A 3E */ { &decoder_ud64, NULL }, /* 0F 3A 3F */ { &decoder_ud64, NULL }, /* 0F 3A 40 */ { &decoder64_modrm, BxOpcodeTable0F3A40 }, /* 0F 3A 41 */ { &decoder64_modrm, BxOpcodeTable0F3A41 }, /* 0F 3A 42 */ { &decoder64_modrm, BxOpcodeTable0F3A42 }, /* 0F 3A 43 */ { &decoder_ud64, NULL }, /* 0F 3A 44 */ { &decoder64_modrm, BxOpcodeTable0F3A44 }, /* 0F 3A 45 */ { &decoder_ud64, NULL }, /* 0F 3A 46 */ { &decoder_ud64, NULL }, /* 0F 3A 47 */ { &decoder_ud64, NULL }, /* 0F 3A 48 */ { &decoder_ud64, NULL }, /* 0F 3A 49 */ { &decoder_ud64, NULL }, /* 0F 3A 4A */ { &decoder_ud64, NULL }, /* 0F 3A 4B */ { &decoder_ud64, NULL }, /* 0F 3A 4C */ { &decoder_ud64, NULL }, /* 0F 3A 4D */ { &decoder_ud64, NULL }, /* 0F 3A 4E */ { &decoder_ud64, NULL }, /* 0F 3A 4F */ { &decoder_ud64, NULL }, /* 0F 3A 50 */ { &decoder_ud64, NULL }, /* 0F 3A 51 */ { &decoder_ud64, NULL }, /* 0F 3A 52 */ { &decoder_ud64, NULL }, /* 0F 3A 53 */ { &decoder_ud64, NULL }, /* 0F 3A 54 */ { &decoder_ud64, NULL }, /* 0F 3A 55 */ { &decoder_ud64, NULL }, /* 0F 3A 56 */ { &decoder_ud64, NULL }, /* 0F 3A 57 */ { &decoder_ud64, NULL }, /* 0F 3A 58 */ { &decoder_ud64, NULL }, /* 0F 3A 59 */ { &decoder_ud64, NULL }, /* 0F 3A 5A */ { &decoder_ud64, NULL }, /* 0F 3A 5B */ { &decoder_ud64, NULL }, /* 0F 3A 5C */ { &decoder_ud64, NULL }, /* 0F 3A 5D */ { &decoder_ud64, NULL }, /* 0F 3A 5E */ { &decoder_ud64, NULL }, /* 0F 3A 5F */ { &decoder_ud64, NULL }, /* 0F 3A 60 */ { &decoder64_modrm, BxOpcodeTable0F3A60 }, /* 0F 3A 61 */ { &decoder64_modrm, BxOpcodeTable0F3A61 }, /* 0F 3A 62 */ { &decoder64_modrm, BxOpcodeTable0F3A62 }, /* 0F 3A 64 */ { &decoder64_modrm, BxOpcodeTable0F3A63 }, /* 0F 3A 64 */ { &decoder_ud64, NULL }, /* 0F 3A 65 */ { &decoder_ud64, NULL }, /* 0F 3A 66 */ { &decoder_ud64, NULL }, /* 0F 3A 67 */ { &decoder_ud64, NULL }, /* 0F 3A 68 */ { &decoder_ud64, NULL }, /* 0F 3A 69 */ { &decoder_ud64, NULL }, /* 0F 3A 6A */ { &decoder_ud64, NULL }, /* 0F 3A 6B */ { &decoder_ud64, NULL }, /* 0F 3A 6C */ { &decoder_ud64, NULL }, /* 0F 3A 6D */ { &decoder_ud64, NULL }, /* 0F 3A 6E */ { &decoder_ud64, NULL }, /* 0F 3A 6F */ { &decoder_ud64, NULL }, /* 0F 3A 70 */ { &decoder_ud64, NULL }, /* 0F 3A 71 */ { &decoder_ud64, NULL }, /* 0F 3A 72 */ { &decoder_ud64, NULL }, /* 0F 3A 73 */ { &decoder_ud64, NULL }, /* 0F 3A 74 */ { &decoder_ud64, NULL }, /* 0F 3A 75 */ { &decoder_ud64, NULL }, /* 0F 3A 76 */ { &decoder_ud64, NULL }, /* 0F 3A 77 */ { &decoder_ud64, NULL }, /* 0F 3A 78 */ { &decoder_ud64, NULL }, /* 0F 3A 79 */ { &decoder_ud64, NULL }, /* 0F 3A 7A */ { &decoder_ud64, NULL }, /* 0F 3A 7B */ { &decoder_ud64, NULL }, /* 0F 3A 7C */ { &decoder_ud64, NULL }, /* 0F 3A 7D */ { &decoder_ud64, NULL }, /* 0F 3A 7E */ { &decoder_ud64, NULL }, /* 0F 3A 7F */ { &decoder_ud64, NULL }, /* 0F 3A 80 */ { &decoder_ud64, NULL }, /* 0F 3A 81 */ { &decoder_ud64, NULL }, /* 0F 3A 82 */ { &decoder_ud64, NULL }, /* 0F 3A 83 */ { &decoder_ud64, NULL }, /* 0F 3A 84 */ { &decoder_ud64, NULL }, /* 0F 3A 85 */ { &decoder_ud64, NULL }, /* 0F 3A 86 */ { &decoder_ud64, NULL }, /* 0F 3A 87 */ { &decoder_ud64, NULL }, /* 0F 3A 88 */ { &decoder_ud64, NULL }, /* 0F 3A 89 */ { &decoder_ud64, NULL }, /* 0F 3A 8A */ { &decoder_ud64, NULL }, /* 0F 3A 8B */ { &decoder_ud64, NULL }, /* 0F 3A 8C */ { &decoder_ud64, NULL }, /* 0F 3A 8D */ { &decoder_ud64, NULL }, /* 0F 3A 8E */ { &decoder_ud64, NULL }, /* 0F 3A 8F */ { &decoder_ud64, NULL }, /* 0F 3A 90 */ { &decoder_ud64, NULL }, /* 0F 3A 91 */ { &decoder_ud64, NULL }, /* 0F 3A 92 */ { &decoder_ud64, NULL }, /* 0F 3A 93 */ { &decoder_ud64, NULL }, /* 0F 3A 94 */ { &decoder_ud64, NULL }, /* 0F 3A 95 */ { &decoder_ud64, NULL }, /* 0F 3A 96 */ { &decoder_ud64, NULL }, /* 0F 3A 97 */ { &decoder_ud64, NULL }, /* 0F 3A 98 */ { &decoder_ud64, NULL }, /* 0F 3A 99 */ { &decoder_ud64, NULL }, /* 0F 3A 9A */ { &decoder_ud64, NULL }, /* 0F 3A 9B */ { &decoder_ud64, NULL }, /* 0F 3A 9C */ { &decoder_ud64, NULL }, /* 0F 3A 9D */ { &decoder_ud64, NULL }, /* 0F 3A 9E */ { &decoder_ud64, NULL }, /* 0F 3A 9F */ { &decoder_ud64, NULL }, /* 0F 3A A0 */ { &decoder_ud64, NULL }, /* 0F 3A A1 */ { &decoder_ud64, NULL }, /* 0F 3A A2 */ { &decoder_ud64, NULL }, /* 0F 3A A3 */ { &decoder_ud64, NULL }, /* 0F 3A A4 */ { &decoder_ud64, NULL }, /* 0F 3A A5 */ { &decoder_ud64, NULL }, /* 0F 3A A6 */ { &decoder_ud64, NULL }, /* 0F 3A A7 */ { &decoder_ud64, NULL }, /* 0F 3A A8 */ { &decoder_ud64, NULL }, /* 0F 3A A9 */ { &decoder_ud64, NULL }, /* 0F 3A AA */ { &decoder_ud64, NULL }, /* 0F 3A AB */ { &decoder_ud64, NULL }, /* 0F 3A AC */ { &decoder_ud64, NULL }, /* 0F 3A AD */ { &decoder_ud64, NULL }, /* 0F 3A AE */ { &decoder_ud64, NULL }, /* 0F 3A AF */ { &decoder_ud64, NULL }, /* 0F 3A B0 */ { &decoder_ud64, NULL }, /* 0F 3A B1 */ { &decoder_ud64, NULL }, /* 0F 3A B2 */ { &decoder_ud64, NULL }, /* 0F 3A B3 */ { &decoder_ud64, NULL }, /* 0F 3A B4 */ { &decoder_ud64, NULL }, /* 0F 3A B5 */ { &decoder_ud64, NULL }, /* 0F 3A B6 */ { &decoder_ud64, NULL }, /* 0F 3A B7 */ { &decoder_ud64, NULL }, /* 0F 3A B8 */ { &decoder_ud64, NULL }, /* 0F 3A B9 */ { &decoder_ud64, NULL }, /* 0F 3A BA */ { &decoder_ud64, NULL }, /* 0F 3A BB */ { &decoder_ud64, NULL }, /* 0F 3A BC */ { &decoder_ud64, NULL }, /* 0F 3A BD */ { &decoder_ud64, NULL }, /* 0F 3A BE */ { &decoder_ud64, NULL }, /* 0F 3A BF */ { &decoder_ud64, NULL }, /* 0F 3A C0 */ { &decoder_ud64, NULL }, /* 0F 3A C1 */ { &decoder_ud64, NULL }, /* 0F 3A C2 */ { &decoder_ud64, NULL }, /* 0F 3A C3 */ { &decoder_ud64, NULL }, /* 0F 3A C4 */ { &decoder_ud64, NULL }, /* 0F 3A C5 */ { &decoder_ud64, NULL }, /* 0F 3A C6 */ { &decoder_ud64, NULL }, /* 0F 3A C7 */ { &decoder_ud64, NULL }, /* 0F 3A C8 */ { &decoder_ud64, NULL }, /* 0F 3A C9 */ { &decoder_ud64, NULL }, /* 0F 3A CA */ { &decoder_ud64, NULL }, /* 0F 3A CB */ { &decoder_ud64, NULL }, /* 0F 3A CC */ { &decoder64_modrm, BxOpcodeTable0F3ACC }, /* 0F 3A CD */ { &decoder_ud64, NULL }, /* 0F 3A CE */ { &decoder_ud64, NULL }, /* 0F 3A CF */ { &decoder_ud64, NULL }, /* 0F 3A D0 */ { &decoder_ud64, NULL }, /* 0F 3A D1 */ { &decoder_ud64, NULL }, /* 0F 3A D2 */ { &decoder_ud64, NULL }, /* 0F 3A D3 */ { &decoder_ud64, NULL }, /* 0F 3A D4 */ { &decoder_ud64, NULL }, /* 0F 3A D5 */ { &decoder_ud64, NULL }, /* 0F 3A D6 */ { &decoder_ud64, NULL }, /* 0F 3A D7 */ { &decoder_ud64, NULL }, /* 0F 3A D8 */ { &decoder_ud64, NULL }, /* 0F 3A D9 */ { &decoder_ud64, NULL }, /* 0F 3A DA */ { &decoder_ud64, NULL }, /* 0F 3A DB */ { &decoder_ud64, NULL }, /* 0F 3A DC */ { &decoder_ud64, NULL }, /* 0F 3A DD */ { &decoder_ud64, NULL }, /* 0F 3A DE */ { &decoder_ud64, NULL }, /* 0F 3A DF */ { &decoder64_modrm, BxOpcodeTable0F3ADF }, /* 0F 3A E0 */ { &decoder_ud64, NULL }, /* 0F 3A E1 */ { &decoder_ud64, NULL }, /* 0F 3A E2 */ { &decoder_ud64, NULL }, /* 0F 3A E3 */ { &decoder_ud64, NULL }, /* 0F 3A E4 */ { &decoder_ud64, NULL }, /* 0F 3A E5 */ { &decoder_ud64, NULL }, /* 0F 3A E6 */ { &decoder_ud64, NULL }, /* 0F 3A E7 */ { &decoder_ud64, NULL }, /* 0F 3A E8 */ { &decoder_ud64, NULL }, /* 0F 3A E9 */ { &decoder_ud64, NULL }, /* 0F 3A EA */ { &decoder_ud64, NULL }, /* 0F 3A EB */ { &decoder_ud64, NULL }, /* 0F 3A EC */ { &decoder_ud64, NULL }, /* 0F 3A ED */ { &decoder_ud64, NULL }, /* 0F 3A EE */ { &decoder_ud64, NULL }, /* 0F 3A EF */ { &decoder_ud64, NULL }, /* 0F 3A F0 */ { &decoder_ud64, NULL }, /* 0F 3A F1 */ { &decoder_ud64, NULL }, /* 0F 3A F2 */ { &decoder_ud64, NULL }, /* 0F 3A F3 */ { &decoder_ud64, NULL }, /* 0F 3A F4 */ { &decoder_ud64, NULL }, /* 0F 3A F5 */ { &decoder_ud64, NULL }, /* 0F 3A F6 */ { &decoder_ud64, NULL }, /* 0F 3A F7 */ { &decoder_ud64, NULL }, /* 0F 3A F8 */ { &decoder_ud64, NULL }, /* 0F 3A F9 */ { &decoder_ud64, NULL }, /* 0F 3A FA */ { &decoder_ud64, NULL }, /* 0F 3A FB */ { &decoder_ud64, NULL }, /* 0F 3A FC */ { &decoder_ud64, NULL }, /* 0F 3A FD */ { &decoder_ud64, NULL }, /* 0F 3A FE */ { &decoder_ud64, NULL }, /* 0F 3A FF */ { &decoder_ud64, NULL }, }; int decoder_vex64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { int ia_opcode = BX_IA_ERROR; if (remain == 0) return(-1); #if BX_SUPPORT_AVX unsigned rex_r = 0, rex_x = 0, rex_b = 0; unsigned rm = 0, mod = 0, nnn = 0; unsigned b2 = 0; // VEX assert((b1 & ~0x1) == 0xc4); if (sse_prefix | rex_prefix) return(BX_IA_ERROR); bx_bool vex_w = 0; unsigned vex_opcext = 1; unsigned vex = *iptr++; remain--; rex_r = ((vex >> 4) & 0x8) ^ 0x8; if (b1 == 0xc4) { rex_x = ((vex >> 3) & 0x8) ^ 0x8; rex_b = ((vex >> 2) & 0x8) ^ 0x8; // decode 3-byte VEX prefix vex_opcext = vex & 0x1f; if (remain == 0) return(-1); remain--; vex = *iptr++; // fetch VEX3 if (vex & 0x80) { vex_w = 1; i->assertOs64(); i->assertOs32(); } } int vvv = 15 - ((vex >> 3) & 0xf); unsigned vex_l = (vex >> 2) & 0x1; i->setVL(BX_VL128 + vex_l); i->setVexW(vex_w); sse_prefix = vex & 0x3; if (remain == 0) return(-1); remain--; unsigned opcode_byte = *iptr++; // fetch new b1 opcode_byte += 256 * vex_opcext; if (opcode_byte < 256 || opcode_byte >= 1024) return(ia_opcode); bx_bool has_modrm = (opcode_byte != 0x177); // if not VZEROUPPER/VZEROALL opcode opcode_byte -= 256; if (has_modrm) { // opcode requires modrm byte if (remain == 0) return(-1); remain--; b2 = *iptr++; // Parse mod-nnn-rm and related bytes mod = b2 & 0xc0; nnn = ((b2 >> 3) & 0x7) | rex_r; rm = (b2 & 0x7) | rex_b; if (mod == 0xc0) { // mod == 11b i->assertModC0(); } else { iptr = decodeModrm64(iptr, remain, i, mod, nnn, rm, rex_r, rex_x, rex_b); if (! iptr) return(-1); } } else { // Opcode does not require a MODRM byte. // Note that a 2-byte opcode (0F XX) will jump to before // the if() above after fetching the 2nd byte, so this path is // taken in all cases if a modrm byte is NOT required. rm = (b1 & 7) | rex_b; nnn = (b1 >> 3) & 7; i->assertModC0(); } Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (sse_prefix << SSE_PREFIX_OFFSET) | (i->modC0() ? (1 << MODC0_OFFSET) : 0) | ((nnn & 0x7) << NNN_OFFSET) | ((rm & 0x7) << RRR_OFFSET) | (vex_w << VEX_W_OFFSET) | (vex_l << VEX_VL_128_256_OFFSET); ia_opcode = findOpcode(BxOpcodeTableVEX[opcode_byte], decmask); bx_bool has_immediate = (opcode_byte >= 0x70 && opcode_byte <= 0x73) || (opcode_byte >= 0xC2 && opcode_byte <= 0xC6) || (opcode_byte >= 0x200); if (has_immediate) { if (remain != 0) { i->modRMForm.Ib[0] = *iptr; remain--; } else { return(-1); } } if (! assign_srcs(i, ia_opcode, BX_TRUE, nnn, rm, vvv, vex_w)) ia_opcode = BX_IA_ERROR; #endif return ia_opcode; } int decoder_evex64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { int ia_opcode = BX_IA_ERROR; if (remain == 0) return(-1); #if BX_SUPPORT_EVEX unsigned rex_r = 0, rex_x = 0, rex_b = 0; unsigned rm = 0, mod = 0, nnn = 0; unsigned b2 = 0; bx_bool displ8 = BX_FALSE; // EVEX prefix 0x62 assert(b1 == 0x62); if (sse_prefix | rex_prefix) return(BX_IA_ERROR); Bit32u evex; if (remain > 3) { evex = FetchDWORD(iptr); iptr += 4; remain -= 4; } else { return(-1); } // EVEX format: 0x62 P0 P1 P2 // ----------- // 7 6 5 4 3 2 1 0 // --------------- // P0 R X B R'0 0 m m // P1 w v v v v 1 p p // P2 z L'L b V'a a a // EVEX.mmmm - opcode group // EVEX.pp - compressed legacy SSE prefix // EVEX.RXB - RXB to combine with MODRM.reg and MODRM.nnn // EVEX.R' - combine with EVEX.R and MODRM.reg // EVEX.vvvv - save as VEX.vvvv // EVEX.V' - combine with EVEX.vvvv or when VSIB present // EVEX.aaa - embedded opmask register // EVEX.W - opsize promotion / opcode extension // EVEX.z - zero masking / merging // EVEX.b - broadcast / round control / SAE // EVEX.LL - vector length control // check for reserved EVEX bits if ((evex & 0x0c) != 0 || (evex & 0x400) == 0) return(ia_opcode); unsigned evex_opcext = evex & 0x3; if (evex_opcext == 0) return(ia_opcode); rex_r = ((evex >> 4) & 0x8) ^ 0x8; rex_r |= (evex & 0x10) ^ 0x10; rex_x = ((evex >> 3) & 0x8) ^ 0x8; rex_b = ((evex >> 2) & 0x8) ^ 0x8; rex_b |= (rex_x << 1); sse_prefix = (evex >> 8) & 0x3; int vvv = 15 - ((evex >> 11) & 0xf); unsigned evex_v = ((evex >> 15) & 0x10) ^ 0x10; vvv |= evex_v; unsigned vex_w = (evex >> 15) & 0x1; if (vex_w) { i->assertOs64(); i->assertOs32(); } unsigned opmask = (evex >> 16) & 0x7; i->setOpmask(opmask); unsigned evex_b = (evex >> 20) & 0x1; i->setEvexb(evex_b); unsigned evex_vl_rc = (evex >> 21) & 0x3; i->setRC(evex_vl_rc); i->setVL(1 << evex_vl_rc); i->setVexW(vex_w); unsigned evex_z = (evex >> 23) & 0x1; i->setZeroMasking(evex_z); if (evex_z && ! opmask) return(ia_opcode); unsigned opcode_byte = (evex >> 24); opcode_byte += 256 * (evex_opcext-1); // opcode requires modrm byte if (remain == 0) return(-1); remain--; b2 = *iptr++; // Parse mod-nnn-rm and related bytes mod = b2 & 0xc0; nnn = ((b2 >> 3) & 0x7) | rex_r; rm = (b2 & 0x7) | rex_b; if (mod == 0xc0) { // mod == 11b i->assertModC0(); } else { iptr = decodeModrm64(iptr, remain, i, mod, nnn, rm, rex_r, rex_x, rex_b); if (! iptr) return(-1); if (mod == 0x40) { // mod==01b displ8 = BX_TRUE; } } // EVEX.b in reg form implies 512-bit vector length if (i->modC0() && i->getEvexb()) { i->setVL(BX_VL512); } Bit32u vl = i->getVL()-1; // 0: VL128, 1: VL256, 3: VL512 Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (sse_prefix << SSE_PREFIX_OFFSET) | (i->modC0() ? (1 << MODC0_OFFSET) : 0) | ((nnn & 0x7) << NNN_OFFSET) | ((rm & 0x7) << RRR_OFFSET) | (vex_w << VEX_W_OFFSET) | (vl << VEX_VL_128_256_OFFSET); if (!opmask) decmask |= (1 << MASK_K0_OFFSET); ia_opcode = findOpcode(BxOpcodeTableEVEX[opcode_byte], decmask); bx_bool has_immediate = (opcode_byte >= 0x70 && opcode_byte <= 0x73) || (opcode_byte >= 0xC2 && opcode_byte <= 0xC6) || (opcode_byte >= 0x200); if (has_immediate) { if (remain != 0) { i->modRMForm.Ib[0] = *iptr; remain--; } else { return(-1); } } if (! assign_srcs(i, ia_opcode, BX_TRUE, nnn, rm, vvv, vex_w, BX_TRUE, displ8)) ia_opcode = BX_IA_ERROR; // EVEX specific #UD conditions if (i->getVL() > BX_VL512) { ia_opcode = BX_IA_ERROR; } #endif return ia_opcode; } int decoder_xop64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { int ia_opcode = BX_IA_ERROR; // 3 byte XOP prefix assert(b1 == 0x8f); if (remain == 0) return(-1); if ((*iptr & 0x08) != 0x08) { // not XOP prefix, decode regular opcode return decoder64_modrm(iptr, remain, i, b1, sse_prefix, rex_prefix, opcode_table); } #if BX_SUPPORT_AVX unsigned rex_r = 0, rex_x = 0, rex_b = 0; unsigned rm = 0, mod = 0, nnn = 0; unsigned b2 = 0; bx_bool vex_w = 0; if (sse_prefix | rex_prefix) return(ia_opcode); unsigned vex; if (remain > 2) { remain -= 3; vex = *iptr++; // fetch XOP2 } else return(-1); rex_r = ((vex >> 4) & 0x8) ^ 0x8; rex_x = ((vex >> 3) & 0x8) ^ 0x8; rex_b = ((vex >> 2) & 0x8) ^ 0x8; unsigned xop_opcext = (vex & 0x1f) - 8; if (xop_opcext >= 3) return(ia_opcode); vex = *iptr++; // fetch XOP3 if (vex & 0x80) { vex_w = 1; i->assertOs64(); i->assertOs32(); } int vvv = 15 - ((vex >> 3) & 0xf); unsigned vex_l = (vex >> 2) & 0x1; i->setVL(BX_VL128 + vex_l); i->setVexW(vex_w); sse_prefix = vex & 0x3; if (sse_prefix) return(ia_opcode); unsigned opcode_byte = *iptr++; opcode_byte += 256 * xop_opcext; // opcode requires modrm byte if (remain == 0) return(-1); remain--; b2 = *iptr++; // Parse mod-nnn-rm and related bytes mod = b2 & 0xc0; nnn = ((b2 >> 3) & 0x7) | rex_r; rm = (b2 & 0x7) | rex_b; if (mod == 0xc0) { // mod == 11b i->assertModC0(); } else { iptr = decodeModrm64(iptr, remain, i, mod, nnn, rm, rex_r, rex_x, rex_b); if (! iptr) return(-1); } Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (i->modC0() ? (1 << MODC0_OFFSET) : 0) | ((nnn & 0x7) << NNN_OFFSET) | ((rm & 0x7) << RRR_OFFSET) | (vex_w << VEX_W_OFFSET) | (vex_l << VEX_VL_128_256_OFFSET); ia_opcode = findOpcode(BxOpcodeTableXOP[opcode_byte], decmask); if (fetchImmediate(iptr, remain, i, ia_opcode, BX_TRUE) < 0) return (-1); if (! assign_srcs(i, ia_opcode, BX_TRUE, nnn, rm, vvv, vex_w)) ia_opcode = BX_IA_ERROR; #endif return ia_opcode; } int decoder_ud64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { return BX_IA_ERROR; } int decoder64_fp_escape(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { int ia_opcode = BX_IA_ERROR; assert(b1 >= 0xd8 && b1 <= 0xdf); struct bx_modrm modrm; iptr = parseModrm64(iptr, remain, i, rex_prefix, &modrm); if (! iptr) return(-1); i->setFoo((modrm.modrm | (b1 << 8)) & 0x7ff); /* for x87 */ const Bit16u *x87_opmap[8] = { /* D8 */ BxOpcodeInfo_FloatingPointD8, /* D9 */ BxOpcodeInfo_FloatingPointD9, /* DA */ BxOpcodeInfo_FloatingPointDA, /* DB */ BxOpcodeInfo_FloatingPointDB, /* DC */ BxOpcodeInfo_FloatingPointDC, /* DD */ BxOpcodeInfo_FloatingPointDD, /* DE */ BxOpcodeInfo_FloatingPointDE, /* DF */ BxOpcodeInfo_FloatingPointDF }; Bit16u *opcodes = (Bit16u *) x87_opmap[b1 - 0xd8]; if (modrm.mod != 0xc0) ia_opcode = opcodes[modrm.nnn & 0x7]; else ia_opcode = opcodes[(modrm.modrm & 0x3f) + 8]; assign_srcs(i, ia_opcode, modrm.nnn, modrm.rm); return ia_opcode; } int decoder64_modrm(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { struct bx_modrm modrm; iptr = parseModrm64(iptr, remain, i, rex_prefix, &modrm); if (! iptr) return(-1); Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (sse_prefix << SSE_PREFIX_OFFSET) | (i->modC0() ? (1 << MODC0_OFFSET) : 0) | ((modrm.nnn & 0x7) << NNN_OFFSET) | ((modrm.rm & 0x7) << RRR_OFFSET); Bit16u ia_opcode = findOpcode((const Bit64u*) opcode_table, decmask); if (fetchImmediate(iptr, remain, i, ia_opcode, BX_TRUE) < 0) return (-1); assign_srcs(i, ia_opcode, modrm.nnn, modrm.rm); return ia_opcode; } int decoder64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { unsigned rex_b = 0; if (rex_prefix) { rex_b = ((rex_prefix & 0x1) << 3); } unsigned rm = (b1 & 7) | rex_b; unsigned nnn = (b1 >> 3) & 7; i->assertModC0(); Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (sse_prefix << SSE_PREFIX_OFFSET) | (1 << MODC0_OFFSET) | ((nnn & 0x7) << NNN_OFFSET) | ((rm & 0x7) << RRR_OFFSET); Bit16u ia_opcode = findOpcode((const Bit64u*) opcode_table, decmask); if (fetchImmediate(iptr, remain, i, ia_opcode, BX_TRUE) < 0) return (-1); assign_srcs(i, ia_opcode, nnn, rm); return ia_opcode; } int decoder_creg64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { // MOVs with CRx and DRx always use register ops and ignore the mod field. assert((b1 & ~7) == 0x120); unsigned rex_r=0, rex_b=0; if (rex_prefix) { rex_r = ((rex_prefix & 0x4) << 1); // rex_x not used rex_b = ((rex_prefix & 0x1) << 3); } // opcode requires modrm byte if (remain == 0) return(-1); remain--; unsigned b2 = *iptr++; // fetch modrm byte // Parse mod-nnn-rm and related bytes unsigned nnn = ((b2 >> 3) & 0x7) | rex_r; unsigned rm = (b2 & 0x7) | rex_b; i->assertModC0(); Bit32u decmask = (1 << IS64_OFFSET) | (i->osize() << OS32_OFFSET) | (i->asize() << AS32_OFFSET) | (sse_prefix << SSE_PREFIX_OFFSET) | (1 << MODC0_OFFSET) | ((nnn & 0x7) << NNN_OFFSET) | ((rm & 0x7) << RRR_OFFSET); Bit16u ia_opcode = findOpcode((Bit64u *) opcode_table, decmask); assign_srcs(i, ia_opcode, nnn, rm); return ia_opcode; } int decoder64_3dnow(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { Bit16u ia_opcode = BX_IA_ERROR; #if BX_SUPPORT_3DNOW struct bx_modrm modrm; iptr = parseModrm64(iptr, remain, i, rex_prefix, &modrm); if (! iptr) return(-1); if (remain != 0) { i->modRMForm.Ib[0] = *iptr; remain--; } else { return(-1); } ia_opcode = Bx3DNowOpcode[i->modRMForm.Ib[0]]; assign_srcs(i, ia_opcode, modrm.nnn, modrm.rm); #endif return ia_opcode; } int decoder64_nop(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { assert(b1 == 0x90); i->assertModC0(); unsigned rex_b = (rex_prefix & 0x1); if (rex_b) { return decoder64(iptr, remain, i, b1, sse_prefix, rex_prefix, opcode_table); } else { if (sse_prefix == SSE_PREFIX_F3) return BX_IA_PAUSE; else return BX_IA_NOP; } } int decoder_simple64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned b1, unsigned sse_prefix, unsigned rex_prefix, const void *opcode_table) { i->assertModC0(); const Bit64u *op = (const Bit64u *) opcode_table; // no immediate expected, no sources expected, take first opcode // check attributes ? Bit64u ia_opcode = Bit16u(*op >> 48) & 0x7FFF; // upper bit indicates that parsing is done and doesn't belong to opcode return ia_opcode; } const Bit8u *parseModrm64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned rex_prefix, struct bx_modrm *modrm) { unsigned rex_r = 0, rex_x = 0, rex_b = 0; if (rex_prefix) { rex_r = ((rex_prefix & 0x4) << 1); rex_x = ((rex_prefix & 0x2) << 2); rex_b = ((rex_prefix & 0x1) << 3); } // opcode requires modrm byte if (remain == 0) return NULL; remain--; unsigned b2 = *iptr++; // Keep original modrm byte modrm->modrm = b2; // Parse mod-nnn-rm and related bytes modrm->mod = b2 & 0xc0; modrm->nnn = ((b2 >> 3) & 0x7) | rex_r; modrm->rm = (b2 & 0x7) | rex_b; if (modrm->mod == 0xc0) { // mod == 11b i->assertModC0(); } else { iptr = decodeModrm64(iptr, remain, i, modrm->mod, modrm->nnn, modrm->rm, rex_r, rex_x, rex_b); } return iptr; } const Bit8u *decodeModrm64(const Bit8u *iptr, unsigned &remain, bxInstruction_c *i, unsigned mod, unsigned nnn, unsigned rm, unsigned rex_r, unsigned rex_x, unsigned rex_b) { unsigned seg = BX_SEG_REG_DS; i->setSibBase(rm & 0xf); // initialize with rm to use BxResolve64Base i->setSibIndex(4); // initialize displ32 with zero to include cases with no diplacement i->modRMForm.displ32u = 0; // note that mod==11b handled outside if ((rm & 0x7) != 4) { // no s-i-b byte if (mod == 0x00) { // mod == 00b if ((rm & 0x7) == 5) { i->setSibBase(BX_64BIT_REG_RIP); goto get_32bit_displ; } // mod==00b, rm!=4, rm!=5 goto modrm_done; } // (mod == 0x40), mod==01b or (mod == 0x80), mod==10b seg = sreg_mod1or2_base32[rm & 0xf]; } else { // mod!=11b, rm==4, s-i-b byte follows unsigned sib, base, index, scale; if (remain != 0) { sib = *iptr++; remain--; } else { return NULL; } base = (sib & 0x7) | rex_b; sib >>= 3; index = (sib & 0x7) | rex_x; sib >>= 3; scale = sib; i->setSibScale(scale); i->setSibBase(base & 0xf); // this part is a little tricky - assign index value always, // it will be really used if the instruction is Gather. Others // assume that resolve function will do the right thing. i->setSibIndex(index & 0xf); if (mod == 0x00) { // mod==00b, rm==4 seg = sreg_mod0_base32[base & 0xf]; if ((base & 0x7) == 5) { i->setSibBase(BX_NIL_REGISTER); goto get_32bit_displ; } // mod==00b, rm==4, base!=5 goto modrm_done; } // (mod == 0x40), mod==01b or (mod == 0x80), mod==10b seg = sreg_mod1or2_base32[base & 0xf]; } // (mod == 0x40), mod==01b if (mod == 0x40) { if (remain != 0) { // 8 sign extended to 32 i->modRMForm.displ32u = (Bit8s) *iptr++; remain--; } else { return NULL; } } else { get_32bit_displ: // (mod == 0x80), mod==10b if (remain > 3) { i->modRMForm.displ32u = FetchDWORD(iptr); iptr += 4; remain -= 4; } else { return NULL; } } modrm_done: i->setSeg(seg); return iptr; } int fetchDecode64(const Bit8u *iptr, bxInstruction_c *i, unsigned remainingInPage) { if (remainingInPage > 15) remainingInPage = 15; i->setILen(remainingInPage); unsigned remain = remainingInPage; // remain must be at least 1 unsigned b1; int ia_opcode = BX_IA_ERROR; unsigned seg_override = BX_SEG_REG_NULL; bx_bool lock = 0; unsigned sse_prefix = SSE_PREFIX_NONE; unsigned rex_prefix = 0; i->init(/*os32*/ 1, // operand size 32 override defaults to 1 /*as32*/ 1, // address size 32 override defaults to 1 /*os64*/ 0, // operand size 64 override defaults to 0 /*as64*/ 1); // address size 64 override defaults to 1 fetch_b1: b1 = *iptr++; remain--; switch (b1) { case 0x40: case 0x41: case 0x42: case 0x43: case 0x44: case 0x45: case 0x46: case 0x47: case 0x48: case 0x49: case 0x4A: case 0x4B: case 0x4C: case 0x4D: case 0x4E: case 0x4F: rex_prefix = b1; if (remain != 0) { goto fetch_b1; } return(-1); case 0x0f: // 2 byte escape if (remain != 0) { remain--; b1 = 0x100 | *iptr++; break; } return(-1); case 0xf2: // REPNE/REPNZ case 0xf3: // REP/REPE/REPZ rex_prefix = 0; sse_prefix = (b1 & 3) ^ 1; i->setLockRepUsed(b1 & 3); if (remain != 0) { goto fetch_b1; } return(-1); case 0x2e: // CS: case 0x26: // ES: case 0x36: // SS: case 0x3e: // DS: /* ignore segment override prefix */ rex_prefix = 0; if (remain != 0) { goto fetch_b1; } return(-1); case 0x64: // FS: case 0x65: // GS: rex_prefix = 0; seg_override = b1 & 0xf; if (remain != 0) { goto fetch_b1; } return(-1); case 0x66: // OpSize rex_prefix = 0; if(!sse_prefix) sse_prefix = SSE_PREFIX_66; i->setOs32B(0); if (remain != 0) { goto fetch_b1; } return(-1); case 0x67: // AddrSize rex_prefix = 0; i->clearAs64(); if (remain != 0) { goto fetch_b1; } return(-1); case 0xf0: // LOCK: rex_prefix = 0; lock = 1; if (remain != 0) { goto fetch_b1; } return(-1); default: break; } // handle 3-byte opcode if (b1 == 0x138 || b1 == 0x13a) { if (remain == 0) return(-1); if (b1 == 0x138) b1 = 0x200 | *iptr++; else b1 = 0x300 | *iptr++; remain--; } if (rex_prefix) { i->assertExtend8bit(); if (rex_prefix & 0x8) { i->assertOs64(); i->assertOs32(); } } i->setSeg(BX_SEG_REG_DS); // default segment is DS: i->modRMForm.Id = 0; BxOpcodeDecodeDescriptor64 *decode_descriptor = &decode64_descriptor[b1]; ia_opcode = decode_descriptor->decode_method(iptr, remain, i, b1, sse_prefix, rex_prefix, decode_descriptor->opcode_table); if (ia_opcode < 0) return(-1); i->setILen(remainingInPage - remain); i->setIaOpcode(ia_opcode); // assign memory segment override if (! BX_NULL_SEG_REG(seg_override)) i->setSeg(seg_override); Bit32u op_flags = BxOpcodesTable[ia_opcode].opflags; if (lock) { i->setLock(); // lock prefix not allowed or destination operand is not memory if (i->modC0() || !(op_flags & BX_LOCKABLE)) { if ((op_flags & BX_LOCKABLE) != 0) { if (ia_opcode == BX_IA_MOV_CR0Rq) i->setSrcReg(0, 8); // extend CR0 -> CR8 else if (ia_opcode == BX_IA_MOV_RqCR0) i->setSrcReg(1, 8); // extend CR0 -> CR8 else i->setIaOpcode(BX_IA_ERROR); // replace execution function with undefined-opcode } else { // replace execution function with undefined-opcode i->setIaOpcode(BX_IA_ERROR); } } } return(0); } #endif /* if BX_SUPPORT_X86_64 */