disassembler_x86.cc revision 703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203
1706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers/* 2706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * Copyright (C) 2012 The Android Open Source Project 3706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * 4706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * Licensed under the Apache License, Version 2.0 (the "License"); 5706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * you may not use this file except in compliance with the License. 6706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * You may obtain a copy of the License at 7706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * 8706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * http://www.apache.org/licenses/LICENSE-2.0 9706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * 10706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * Unless required by applicable law or agreed to in writing, software 11706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * distributed under the License is distributed on an "AS IS" BASIS, 12706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * See the License for the specific language governing permissions and 14706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers * limitations under the License. 15706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers */ 16706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 17706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers#include "disassembler_x86.h" 18706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 19706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers#include <iostream> 20706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 210f3c55331439970e01af67f80ac117c473bc04cfElliott Hughes#include "logging.h" 220f3c55331439970e01af67f80ac117c473bc04cfElliott Hughes#include "stringprintf.h" 2392301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes#include "thread.h" 240f3c55331439970e01af67f80ac117c473bc04cfElliott Hughes 25706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersnamespace art { 26706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersnamespace x86 { 27706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 28706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDisassemblerX86::DisassemblerX86() { 29706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 30706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 31706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersvoid DisassemblerX86::Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end) { 32706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t length = 0; 33706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers for (const uint8_t* cur = begin; cur < end; cur += length) { 34706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers length = DumpInstruction(os, cur); 35706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 36706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 37706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 38706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersstatic const char* gReg8Names[] = { "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh" }; 39703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhaostatic const char* gReg16Names[] = { "ax", "cx", "dx", "bx", "sp", "bp", "si", "di" }; 40703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhaostatic const char* gReg32Names[] = { "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi" }; 41706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 42706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersstatic void DumpReg0(std::ostream& os, uint8_t /*rex*/, size_t reg, 43706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool byte_operand, uint8_t size_override) { 44706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DCHECK_LT(reg, 8u); 45706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers // TODO: combine rex into size 46706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t size = byte_operand ? 1 : (size_override == 0x66 ? 2 : 4); 47706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers switch (size) { 48706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 1: os << gReg8Names[reg]; break; 49706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 2: os << gReg16Names[reg]; break; 50706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 4: os << gReg32Names[reg]; break; 51706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers default: LOG(FATAL) << "unexpected size " << size; 52706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 53706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 54706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 55bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogersenum RegFile { GPR, MMX, SSE }; 56bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers 57706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersstatic void DumpReg(std::ostream& os, uint8_t rex, uint8_t reg, 58bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers bool byte_operand, uint8_t size_override, RegFile reg_file) { 59706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t reg_num = reg; // TODO: combine with REX.R on 64bit 60bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (reg_file == GPR) { 61bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpReg0(os, rex, reg_num, byte_operand, size_override); 62bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (reg_file == SSE) { 63bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers os << "xmm" << reg_num; 64bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 65bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers os << "mm" << reg_num; 66bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 67706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 68706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 697caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogersstatic void DumpBaseReg(std::ostream& os, uint8_t rex, uint8_t reg) { 70706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t reg_num = reg; // TODO: combine with REX.B on 64bit 717caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers DumpReg0(os, rex, reg_num, false, 0); 72706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 73706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 747caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogersstatic void DumpIndexReg(std::ostream& os, uint8_t rex, uint8_t reg) { 75706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers int reg_num = reg; // TODO: combine with REX.X on 64bit 767caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers DumpReg0(os, rex, reg_num, false, 0); 77706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 78706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 7992301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughesenum SegmentPrefix { 8092301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kCs = 0x2e, 8192301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kSs = 0x36, 8292301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kDs = 0x3e, 8392301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kEs = 0x26, 8492301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kFs = 0x64, 8592301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes kGs = 0x65, 8692301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes}; 8792301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes 88706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogersstatic void DumpSegmentOverride(std::ostream& os, uint8_t segment_prefix) { 89706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers switch (segment_prefix) { 9092301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kCs: os << "cs:"; break; 9192301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kSs: os << "ss:"; break; 9292301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kDs: os << "ds:"; break; 9392301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kEs: os << "es:"; break; 9492301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kFs: os << "fs:"; break; 9592301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kGs: os << "gs:"; break; 96706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers default: break; 97706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 98706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 99706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 100706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogerssize_t DisassemblerX86::DumpInstruction(std::ostream& os, const uint8_t* instr) { 101706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers const uint8_t* begin_instr = instr; 102706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool have_prefixes = true; 103706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t prefix[4] = {0, 0, 0, 0}; 104706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers const char** modrm_opcodes = NULL; 105706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers do { 106706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers switch (*instr) { 1077caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers // Group 1 - lock and repeat prefixes: 108706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xF0: 109706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xF2: 110706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xF3: 111706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers prefix[0] = *instr; 112706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 113706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers // Group 2 - segment override prefixes: 11492301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kCs: 11592301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kSs: 11692301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kDs: 11792301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kEs: 11892301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kFs: 11992301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes case kGs: 120706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers prefix[1] = *instr; 121706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 122706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers // Group 3 - operand size override: 123706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x66: 124706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers prefix[2] = *instr; 125706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 126706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers // Group 4 - address size override: 127706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x67: 128706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers prefix[3] = *instr; 129706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 130706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers default: 131706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers have_prefixes = false; 132706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 133706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 134706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (have_prefixes) { 135706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 136706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 137706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } while (have_prefixes); 138706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t rex = (*instr >= 0x40 && *instr <= 0x4F) ? *instr : 0; 139706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool has_modrm = false; 140706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool reg_is_opcode = false; 141706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t immediate_bytes = 0; 142706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers size_t branch_bytes = 0; 143706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers std::ostringstream opcode; 144706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool store = false; // stores to memory (ie rm is on the left) 145706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool load = false; // loads from memory (ie rm is on the right) 146706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool byte_operand = false; 147706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool ax = false; // implicit use of ax 148e296248a124ed8287b38a9225463696c18d84cd6jeffhao bool cx = false; // implicit use of cx 149706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers bool reg_in_opcode = false; // low 3-bits of opcode encode register parameter 150703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao bool no_ops = false; 151bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers RegFile src_reg_file = GPR; 152bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers RegFile dst_reg_file = GPR; 153706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers switch (*instr) { 154706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers#define DISASSEMBLER_ENTRY(opname, \ 155706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers rm8_r8, rm32_r32, \ 156706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers r8_rm8, r32_rm32, \ 157706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers ax8_i8, ax32_i32) \ 158706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case rm8_r8: opcode << #opname; store = true; has_modrm = true; byte_operand = true; break; \ 159706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case rm32_r32: opcode << #opname; store = true; has_modrm = true; break; \ 160706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case r8_rm8: opcode << #opname; load = true; has_modrm = true; byte_operand = true; break; \ 161706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case r32_rm32: opcode << #opname; load = true; has_modrm = true; break; \ 162706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case ax8_i8: opcode << #opname; ax = true; immediate_bytes = 1; byte_operand = true; break; \ 163706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case ax32_i32: opcode << #opname; ax = true; immediate_bytes = 4; break; 164706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 165706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(add, 166706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x00 /* RegMem8/Reg8 */, 0x01 /* RegMem32/Reg32 */, 167706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x02 /* Reg8/RegMem8 */, 0x03 /* Reg32/RegMem32 */, 168706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x04 /* Rax8/imm8 opcode */, 0x05 /* Rax32/imm32 */) 169706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(or, 170706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x08 /* RegMem8/Reg8 */, 0x09 /* RegMem32/Reg32 */, 171706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x0A /* Reg8/RegMem8 */, 0x0B /* Reg32/RegMem32 */, 172706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x0C /* Rax8/imm8 opcode */, 0x0D /* Rax32/imm32 */) 173706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(adc, 174706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x10 /* RegMem8/Reg8 */, 0x11 /* RegMem32/Reg32 */, 175706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x12 /* Reg8/RegMem8 */, 0x13 /* Reg32/RegMem32 */, 176706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x14 /* Rax8/imm8 opcode */, 0x15 /* Rax32/imm32 */) 177706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(sbb, 178706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x18 /* RegMem8/Reg8 */, 0x19 /* RegMem32/Reg32 */, 179706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x1A /* Reg8/RegMem8 */, 0x1B /* Reg32/RegMem32 */, 180706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x1C /* Rax8/imm8 opcode */, 0x1D /* Rax32/imm32 */) 181706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(and, 182706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x20 /* RegMem8/Reg8 */, 0x21 /* RegMem32/Reg32 */, 183706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x22 /* Reg8/RegMem8 */, 0x23 /* Reg32/RegMem32 */, 184706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x24 /* Rax8/imm8 opcode */, 0x25 /* Rax32/imm32 */) 185706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(sub, 186706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x28 /* RegMem8/Reg8 */, 0x29 /* RegMem32/Reg32 */, 187706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x2A /* Reg8/RegMem8 */, 0x2B /* Reg32/RegMem32 */, 188706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x2C /* Rax8/imm8 opcode */, 0x2D /* Rax32/imm32 */) 189706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(xor, 190706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x30 /* RegMem8/Reg8 */, 0x31 /* RegMem32/Reg32 */, 191706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x32 /* Reg8/RegMem8 */, 0x33 /* Reg32/RegMem32 */, 192706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x34 /* Rax8/imm8 opcode */, 0x35 /* Rax32/imm32 */) 193706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan RogersDISASSEMBLER_ENTRY(cmp, 194706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x38 /* RegMem8/Reg8 */, 0x39 /* RegMem32/Reg32 */, 195706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x3A /* Reg8/RegMem8 */, 0x3B /* Reg32/RegMem32 */, 196706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 0x3C /* Rax8/imm8 opcode */, 0x3D /* Rax32/imm32 */) 197706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 198706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers#undef DISASSEMBLER_ENTRY 199706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x50: case 0x51: case 0x52: case 0x53: case 0x54: case 0x55: case 0x56: case 0x57: 200706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "push"; 201706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_in_opcode = true; 202706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 203706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x58: case 0x59: case 0x5A: case 0x5B: case 0x5C: case 0x5D: case 0x5E: case 0x5F: 204706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "pop"; 205706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_in_opcode = true; 206706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 207706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x68: opcode << "push"; immediate_bytes = 4; break; 208706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x6A: opcode << "push"; immediate_bytes = 1; break; 209706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x70: case 0x71: case 0x72: case 0x73: case 0x74: case 0x75: case 0x76: case 0x77: 210706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x78: case 0x79: case 0x7A: case 0x7B: case 0x7C: case 0x7D: case 0x7E: case 0x7F: 211706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers static const char* condition_codes[] = 212b25c3f6a86dc634ce44fb2849385b49465caa84dElliott Hughes {"o", "no", "b/nae/c", "nb/ae/nc", "z/eq", "nz/ne", "be/na", "nbe/a", 213b25c3f6a86dc634ce44fb2849385b49465caa84dElliott Hughes "s", "ns", "p/pe", "np/po", "l/nge", "nl/ge", "le/ng", "nle/g" 214706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers }; 215706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "j" << condition_codes[*instr & 0xF]; 216706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers branch_bytes = 1; 217706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 218706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x88: opcode << "mov"; store = true; has_modrm = true; byte_operand = true; break; 219706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x89: opcode << "mov"; store = true; has_modrm = true; break; 220706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x8A: opcode << "mov"; load = true; has_modrm = true; byte_operand = true; break; 221706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x8B: opcode << "mov"; load = true; has_modrm = true; break; 222706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 223706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x0F: // 2 byte extended opcode 224706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 225706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers switch (*instr) { 2267caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0x10: case 0x11: 2277caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers if (prefix[0] == 0xF2) { 2287caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "movsd"; 229fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 2307caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers } else if (prefix[0] == 0xF3) { 2317caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "movss"; 232fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 2337caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers } else if (prefix[2] == 0x66) { 2347caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "movupd"; 235fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 2367caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers } else { 2377caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "movups"; 2387caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers } 2397caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers has_modrm = true; 240bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers src_reg_file = dst_reg_file = SSE; 2417caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers load = *instr == 0x10; 2427caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers store = !load; 2437caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers break; 244fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x2A: 245fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 246fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtpi2pd"; 247fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 248fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF2) { 249fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtsi2sd"; 250fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 251fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF3) { 252fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtsi2ss"; 253fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 254fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 255fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtpi2ps"; 256fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 257fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao load = true; 258fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 259fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = SSE; 260fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 261fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x2C: 262fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 263fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvttpd2pi"; 264fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 265fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF2) { 266fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvttsd2si"; 267fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 268fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF3) { 269fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvttss2si"; 270fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 271fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 272fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvttps2pi"; 273fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 274fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao load = true; 275fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 276fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao src_reg_file = SSE; 277fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 278fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x2D: 279fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 280fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtpd2pi"; 281fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 282fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF2) { 283fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtsd2si"; 284fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 285fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else if (prefix[0] == 0xF3) { 286fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtss2si"; 287fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 288fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 289fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "cvtps2pi"; 290fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 291fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao load = true; 292fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 293fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao src_reg_file = SSE; 294fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 295fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x2E: 296fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "u"; 297fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao // FALLTHROUGH 298fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x2F: 299fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 300fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "comisd"; 301fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 302fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 303fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "comiss"; 304fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 305fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 306fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao load = true; 307fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao src_reg_file = dst_reg_file = SSE; 308fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 309706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x38: // 3 byte extended opcode 310706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << StringPrintf("unknown opcode '0F 38 %02X'", *instr); 311706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 312706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x3A: // 3 byte extended opcode 313706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << StringPrintf("unknown opcode '0F 3A %02X'", *instr); 314706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 315bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x50: case 0x51: case 0x52: case 0x53: case 0x54: case 0x55: case 0x56: case 0x57: 316bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x58: case 0x59: case 0x5C: case 0x5D: case 0x5E: case 0x5F: { 317bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers switch (*instr) { 318bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x50: opcode << "movmsk"; break; 319bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x51: opcode << "sqrt"; break; 320bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x52: opcode << "rsqrt"; break; 321bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x53: opcode << "rcp"; break; 322bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x54: opcode << "and"; break; 323bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x55: opcode << "andn"; break; 324bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x56: opcode << "or"; break; 325bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x57: opcode << "xor"; break; 326bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x58: opcode << "add"; break; 327bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x59: opcode << "mul"; break; 328bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5C: opcode << "sub"; break; 329bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5D: opcode << "min"; break; 330bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5E: opcode << "div"; break; 331bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5F: opcode << "max"; break; 332bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers default: LOG(FATAL) << "Unreachable"; 333bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 334bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (prefix[2] == 0x66) { 335bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "pd"; 336fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 337bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF2) { 338bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "sd"; 339fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 340bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF3) { 341bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "ss"; 342fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 343bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 344bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "ps"; 345bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 346bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers load = true; 347bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers has_modrm = true; 348bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers src_reg_file = dst_reg_file = SSE; 349bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers break; 350bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 351bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5A: 352bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (prefix[2] == 0x66) { 353bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtpd2ps"; 354fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 355bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF2) { 356bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtsd2ss"; 357fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 358bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF3) { 359bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtss2sd"; 360fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 361bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 362bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtps2pd"; 363bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 364bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers load = true; 365bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers has_modrm = true; 366bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers src_reg_file = dst_reg_file = SSE; 367bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers break; 368bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x5B: 369bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (prefix[2] == 0x66) { 370bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtps2dq"; 371fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 372bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF2) { 373bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "bad opcode F2 0F 5B"; 374bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF3) { 375bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvttps2dq"; 376fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 377bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 378bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "cvtdq2ps"; 379bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 380bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers load = true; 381bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers has_modrm = true; 382bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers src_reg_file = dst_reg_file = SSE; 383bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers break; 384bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x6E: 385bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (prefix[2] == 0x66) { 386bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers dst_reg_file = SSE; 387fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 388bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 389bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers dst_reg_file = MMX; 390bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 391fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "movd"; 392bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers load = true; 393bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers has_modrm = true; 394bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers break; 395bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers case 0x6F: 396bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (prefix[2] == 0x66) { 397bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers dst_reg_file = SSE; 398bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "movdqa"; 399fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 400bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (prefix[0] == 0xF3) { 401bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers dst_reg_file = SSE; 402bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "movdqu"; 403fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[0] = 0; // clear prefix now it's served its purpose as part of the opcode 404bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 405bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers dst_reg_file = MMX; 406bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers opcode << "movq"; 407bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 408bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers load = true; 409bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers has_modrm = true; 410bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers break; 411fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x71: 412fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 413fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = SSE; 414fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 415fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 416fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = MMX; 417fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 418fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao static const char* x71_opcodes[] = {"unknown-71", "unknown-71", "psrlw", "unknown-71", "psraw", "unknown-71", "psllw", "unknown-71"}; 419fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao modrm_opcodes = x71_opcodes; 420fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao reg_is_opcode = true; 421fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 422fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao store = true; 423fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao immediate_bytes = 1; 424fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 425fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x72: 426fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 427fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = SSE; 428fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 429fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 430fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = MMX; 431fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 432fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao static const char* x72_opcodes[] = {"unknown-72", "unknown-72", "psrld", "unknown-72", "psrad", "unknown-72", "pslld", "unknown-72"}; 433fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao modrm_opcodes = x72_opcodes; 434fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao reg_is_opcode = true; 435fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 436fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao store = true; 437fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao immediate_bytes = 1; 438fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 439fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x73: 440fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 441fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = SSE; 442fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 443fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 444fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao dst_reg_file = MMX; 445fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 446fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao static const char* x73_opcodes[] = {"unknown-73", "unknown-73", "psrlq", "unknown-73", "unknown-73", "unknown-73", "psllq", "unknown-73"}; 447fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao modrm_opcodes = x73_opcodes; 448fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao reg_is_opcode = true; 449fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 450fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao store = true; 451fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao immediate_bytes = 1; 452fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 453fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao case 0x7E: 454fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao if (prefix[2] == 0x66) { 455fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao src_reg_file = SSE; 456fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao prefix[2] = 0; // clear prefix now it's served its purpose as part of the opcode 457fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } else { 458fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao src_reg_file = MMX; 459fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao } 460fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao opcode << "movd"; 461fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao has_modrm = true; 462fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao store = true; 463fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao break; 464706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x80: case 0x81: case 0x82: case 0x83: case 0x84: case 0x85: case 0x86: case 0x87: 465706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x88: case 0x89: case 0x8A: case 0x8B: case 0x8C: case 0x8D: case 0x8E: case 0x8F: 466706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "j" << condition_codes[*instr & 0xF]; 467706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers branch_bytes = 4; 468706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 4697caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0x90: case 0x91: case 0x92: case 0x93: case 0x94: case 0x95: case 0x96: case 0x97: 4707caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0x98: case 0x99: case 0x9A: case 0x9B: case 0x9C: case 0x9D: case 0x9E: case 0x9F: 4717caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "set" << condition_codes[*instr & 0xF]; 4727caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers modrm_opcodes = NULL; 4737caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers reg_is_opcode = true; 4747caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers has_modrm = true; 4757caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers store = true; 4767caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers break; 477703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 0xAE: 478703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao if (prefix[0] == 0xF3) { 479703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao static const char* xAE_opcodes[] = {"rdfsbase", "rdgsbase", "wrfsbase", "wrgsbase", "unknown-AE", "unknown-AE", "unknown-AE", "unknown-AE"}; 480703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao modrm_opcodes = xAE_opcodes; 481703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao reg_is_opcode = true; 482703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao has_modrm = true; 483703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao uint8_t reg_or_opcode = (instr[1] >> 3) & 7; 484703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao switch (reg_or_opcode) { 485703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 0: 486703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao prefix[1] = kFs; 487703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao load = true; 488703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 489703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 1: 490703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao prefix[1] = kGs; 491703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao load = true; 492703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 493703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 2: 494703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao prefix[1] = kFs; 495703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao store = true; 496703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 497703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 3: 498703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao prefix[1] = kGs; 499703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao store = true; 500703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 501703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao default: 502703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao load = true; 503703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 504703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao } 505703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao } else { 506703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao static const char* xAE_opcodes[] = {"unknown-AE", "unknown-AE", "unknown-AE", "unknown-AE", "unknown-AE", "lfence", "mfence", "sfence"}; 507703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao modrm_opcodes = xAE_opcodes; 508703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao reg_is_opcode = true; 509703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao has_modrm = true; 510703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao load = true; 511703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao no_ops = true; 512703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao } 513703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 5147caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0xB6: opcode << "movzxb"; has_modrm = true; load = true; break; 5157caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0xB7: opcode << "movzxw"; has_modrm = true; load = true; break; 516706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers default: 517706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << StringPrintf("unknown opcode '0F %02X'", *instr); 518706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 519706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 520706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 521706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0x80: case 0x81: case 0x82: case 0x83: 522706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers static const char* x80_opcodes[] = {"add", "or", "adc", "sbb", "and", "sub", "xor", "cmp"}; 523706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers modrm_opcodes = x80_opcodes; 524706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers has_modrm = true; 525706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_is_opcode = true; 526706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers store = true; 527706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers byte_operand = (*instr & 1) == 0; 528706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers immediate_bytes = *instr == 0x81 ? 4 : 1; 529706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 530703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 0x84: case 0x85: 531703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao opcode << "test"; 532703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao has_modrm = true; 533703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao load = true; 534703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao byte_operand = (*instr & 1) == 0; 535703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 5367caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0x8D: 5377caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers opcode << "lea"; 5387caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers has_modrm = true; 5397caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers load = true; 5407caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers break; 541703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao case 0x8F: 542703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao opcode << "pop"; 543703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao has_modrm = true; 544703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao reg_is_opcode = true; 545703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao store = true; 546703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao break; 547706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xB0: case 0xB1: case 0xB2: case 0xB3: case 0xB4: case 0xB5: case 0xB6: case 0xB7: 548706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "mov"; 549706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers immediate_bytes = 1; 550706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_in_opcode = true; 551706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 552706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xB8: case 0xB9: case 0xBA: case 0xBB: case 0xBC: case 0xBD: case 0xBE: case 0xBF: 553706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << "mov"; 554706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers immediate_bytes = 4; 555706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_in_opcode = true; 556706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 5577caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0xC0: case 0xC1: 558e296248a124ed8287b38a9225463696c18d84cd6jeffhao case 0xD0: case 0xD1: case 0xD2: case 0xD3: 5597caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers static const char* shift_opcodes[] = 5607caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers {"rol", "ror", "rcl", "rcr", "shl", "shr", "unknown-shift", "sar"}; 5617caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers modrm_opcodes = shift_opcodes; 5627caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers has_modrm = true; 5637caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers reg_is_opcode = true; 5647caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers store = true; 56516b5c294c37460b51dc1f5296000cc80bbd33419Elliott Hughes immediate_bytes = ((*instr & 0xf0) == 0xc0) ? 1 : 0; 566e296248a124ed8287b38a9225463696c18d84cd6jeffhao cx = (*instr == 0xD2) || (*instr == 0xD3); 567e296248a124ed8287b38a9225463696c18d84cd6jeffhao byte_operand = (*instr == 0xC0); 5687caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers break; 569706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xC3: opcode << "ret"; break; 5700589ca9245849df238812444952c674e01361f2aElliott Hughes case 0xC7: 5710589ca9245849df238812444952c674e01361f2aElliott Hughes static const char* c7_opcodes[] = {"mov", "unknown-c7", "unknown-c7", "unknown-c7", "unknown-c7", "unknown-c7", "unknown-c7", "unknown-c7"}; 5720589ca9245849df238812444952c674e01361f2aElliott Hughes modrm_opcodes = c7_opcodes; 5730589ca9245849df238812444952c674e01361f2aElliott Hughes store = true; 5740589ca9245849df238812444952c674e01361f2aElliott Hughes immediate_bytes = 4; 5750589ca9245849df238812444952c674e01361f2aElliott Hughes has_modrm = true; 5760589ca9245849df238812444952c674e01361f2aElliott Hughes reg_is_opcode = true; 5770589ca9245849df238812444952c674e01361f2aElliott Hughes break; 5787caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0xCC: opcode << "int 3"; break; 5797caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers case 0xE8: opcode << "call"; branch_bytes = 4; break; 580706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xE9: opcode << "jmp"; branch_bytes = 4; break; 581706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xEB: opcode << "jmp"; branch_bytes = 1; break; 582174651dea03956e160a2cff0d842954823c49134jeffhao case 0xF6: case 0xF7: 583174651dea03956e160a2cff0d842954823c49134jeffhao static const char* f7_opcodes[] = {"test", "unknown-f7", "not", "neg", "mul edx:eax, eax *", "imul edx:eax, eax *", "div edx:eax, edx:eax /", "idiv edx:eax, edx:eax /"}; 584174651dea03956e160a2cff0d842954823c49134jeffhao modrm_opcodes = f7_opcodes; 585174651dea03956e160a2cff0d842954823c49134jeffhao has_modrm = true; 586174651dea03956e160a2cff0d842954823c49134jeffhao reg_is_opcode = true; 587174651dea03956e160a2cff0d842954823c49134jeffhao store = true; 588174651dea03956e160a2cff0d842954823c49134jeffhao immediate_bytes = ((instr[1] & 0x38) == 0) ? 1 : 0; 589174651dea03956e160a2cff0d842954823c49134jeffhao break; 590706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers case 0xFF: 591706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers static const char* ff_opcodes[] = {"inc", "dec", "call", "call", "jmp", "jmp", "push", "unknown-ff"}; 592706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers modrm_opcodes = ff_opcodes; 593706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers has_modrm = true; 594706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers reg_is_opcode = true; 595706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers load = true; 596706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 597706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers default: 598706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << StringPrintf("unknown opcode '%02X'", *instr); 599706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers break; 600706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 601706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers std::ostringstream args; 602706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (reg_in_opcode) { 603706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DCHECK(!has_modrm); 604bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpReg(args, rex, *instr & 0x7, false, prefix[2], GPR); 605706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 606706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 60792301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes uint32_t address_bits = 0; 608706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (has_modrm) { 609706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t modrm = *instr; 610706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 611706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t mod = modrm >> 6; 612706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t reg_or_opcode = (modrm >> 3) & 7; 613706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t rm = modrm & 7; 614706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers std::ostringstream address; 615706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (mod == 0 && rm == 5) { // fixed address 61692301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes address_bits = *reinterpret_cast<const uint32_t*>(instr); 61792301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes address << StringPrintf("[0x%x]", address_bits); 618706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr += 4; 619706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else if (rm == 4 && mod != 3) { // SIB 620706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t sib = *instr; 621706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 622706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t ss = (sib >> 6) & 3; 623706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t index = (sib >> 3) & 7; 624706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers uint8_t base = sib & 7; 625706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << "["; 626706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (base != 5 || mod != 0) { 6277caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers DumpBaseReg(address, rex, base); 628706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (index != 4) { 629706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << " + "; 630706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 631706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 632706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (index != 4) { 6337caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers DumpIndexReg(address, rex, index); 634706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (ss != 0) { 635706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << StringPrintf(" * %d", 1 << ss); 636706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 637706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 638706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (mod == 1) { 639706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << StringPrintf(" + %d", *reinterpret_cast<const int8_t*>(instr)); 640706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 641706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else if (mod == 2) { 642706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << StringPrintf(" + %d", *reinterpret_cast<const int32_t*>(instr)); 643706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr += 4; 644706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 645706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << "]"; 646706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else { 647bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (mod == 3) { 648703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao if (!no_ops) { 649703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao DumpReg(address, rex, rm, byte_operand, prefix[2], load ? src_reg_file : dst_reg_file); 650703f2cd1f4d1eb5ab5c9792ca2de9ffb39378203jeffhao } 651bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else { 652706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << "["; 653bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpBaseReg(address, rex, rm); 654bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers if (mod == 1) { 655bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers address << StringPrintf(" + %d", *reinterpret_cast<const int8_t*>(instr)); 656bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers instr++; 657bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } else if (mod == 2) { 658bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers address << StringPrintf(" + %d", *reinterpret_cast<const int32_t*>(instr)); 659bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers instr += 4; 660bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers } 661706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers address << "]"; 662706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 663706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 664706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 6657caad77632ae121c9f64c488e3f8f710e2c4813dIan Rogers if (reg_is_opcode && modrm_opcodes != NULL) { 666706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers opcode << modrm_opcodes[reg_or_opcode]; 667706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 668706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (load) { 669706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (!reg_is_opcode) { 670bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpReg(args, rex, reg_or_opcode, byte_operand, prefix[2], dst_reg_file); 671706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << ", "; 672706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 673706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DumpSegmentOverride(args, prefix[1]); 674706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << address.str(); 675706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else { 676706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DCHECK(store); 677706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DumpSegmentOverride(args, prefix[1]); 678706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << address.str(); 679706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (!reg_is_opcode) { 680706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << ", "; 681bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpReg(args, rex, reg_or_opcode, byte_operand, prefix[2], src_reg_file); 682706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 683706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 684706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 685706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (ax) { 686fdffdf898f12d91765c7dbe7bcb1ccbbcd2b72d1jeffhao // If this opcode implicitly uses ax, ax is always the first arg. 687bf989802bfcd0a0e1d27feb6b67b19cccb7b31e8Ian Rogers DumpReg(args, rex, 0 /* EAX */, byte_operand, prefix[2], GPR); 688706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 689e296248a124ed8287b38a9225463696c18d84cd6jeffhao if (cx) { 690e296248a124ed8287b38a9225463696c18d84cd6jeffhao args << ", "; 691e296248a124ed8287b38a9225463696c18d84cd6jeffhao DumpReg(args, rex, 1 /* ECX */, true, prefix[2], GPR); 692e296248a124ed8287b38a9225463696c18d84cd6jeffhao } 693706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (immediate_bytes > 0) { 694e296248a124ed8287b38a9225463696c18d84cd6jeffhao if (has_modrm || reg_in_opcode || ax || cx) { 695706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << ", "; 696706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 697706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (immediate_bytes == 1) { 698706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << StringPrintf("%d", *reinterpret_cast<const int8_t*>(instr)); 699706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 700706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else { 701706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers CHECK_EQ(immediate_bytes, 4u); 702706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers args << StringPrintf("%d", *reinterpret_cast<const int32_t*>(instr)); 703706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr += 4; 704706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 705706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else if (branch_bytes > 0) { 706706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers DCHECK(!has_modrm); 707706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers int32_t displacement; 708706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers if (branch_bytes == 1) { 709706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers displacement = *reinterpret_cast<const int8_t*>(instr); 710706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr++; 711706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } else { 712706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers CHECK_EQ(branch_bytes, 4u); 713706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers displacement = *reinterpret_cast<const int32_t*>(instr); 714706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers instr += 4; 715706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 71614178a99fd397737124e65d5ccb9446f85c5ca93Elliott Hughes args << StringPrintf("%+d (%p)", displacement, instr + displacement); 717706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 71892301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes if (prefix[1] == kFs) { 71992301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes args << " ; "; 72092301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes Thread::DumpThreadOffset(args, address_bits, 4); 72192301d97693ea52f5f6a9bc62d0c7fc611f87c7bElliott Hughes } 72228fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes std::stringstream hex; 723706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers for (size_t i = 0; begin_instr + i < instr; ++i) { 72428fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes hex << StringPrintf("%02X", begin_instr[i]); 725706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers } 72628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes os << StringPrintf("\t\t\t%p: %22s \t%-7s ", begin_instr, hex.str().c_str(), opcode.str().c_str()) << args.str() << '\n'; 727706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers return instr - begin_instr; 728706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} 729706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers 730706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} // namespace x86 731706a10ea53a32455c6b3ffc5e5e0e1f6f191ec2aIan Rogers} // namespace art 732