diff options
Diffstat (limited to 'Source/JavaScriptCore/disassembler/ARMv7/ARMv7DOpcode.h')
| -rw-r--r-- | Source/JavaScriptCore/disassembler/ARMv7/ARMv7DOpcode.h | 1237 |
1 files changed, 0 insertions, 1237 deletions
diff --git a/Source/JavaScriptCore/disassembler/ARMv7/ARMv7DOpcode.h b/Source/JavaScriptCore/disassembler/ARMv7/ARMv7DOpcode.h deleted file mode 100644 index 13e209db7..000000000 --- a/Source/JavaScriptCore/disassembler/ARMv7/ARMv7DOpcode.h +++ /dev/null @@ -1,1237 +0,0 @@ -/* - * Copyright (C) 2013 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef ARMv7DOpcode_h -#define ARMv7DOpcode_h - -#if USE(ARMV7_DISASSEMBLER) - -#include <stdint.h> -#include <wtf/Assertions.h> - -namespace JSC { namespace ARMv7Disassembler { - -class ARMv7DOpcode { -public: - static void init(); - - ARMv7DOpcode() - : m_opcode(0) - , m_bufferOffset(0) - { - init(); - - for (unsigned i = 0; i < 4; i++) - m_ifThenConditions[i] = CondNone; - - endITBlock(); - - m_formatBuffer[0] = '\0'; - } - - const char* disassemble(uint16_t*& currentPC); - -protected: - const unsigned RegSP = 0xd; - const unsigned RegLR = 0xe; - const unsigned RegPC = 0xf; - - void fetchOpcode(uint16_t*&); - bool is32BitInstruction() { return (m_opcode & 0xfffff800) > 0xe000; } - bool isFPInstruction() { return (m_opcode & 0xfc000e00) == 0xec000a00; } - - static const char* const s_conditionNames[16]; - static const char* const s_shiftNames[4]; - static const char* const s_optionName[8]; - static const char* const s_specialRegisterNames[3]; - - static const char* conditionName(unsigned condition) { return s_conditionNames[condition & 0xf]; } - static const char* shiftName(unsigned shiftValue) { return s_shiftNames[shiftValue & 0x3]; } - - bool inITBlock() { return m_ITConditionIndex < m_ITBlocksize; } - bool startingITBlock() { return m_ITConditionIndex == m_ITBlocksize + 1; } - - void startITBlock(unsigned, unsigned); - void saveITConditionAt(unsigned, unsigned); - void endITBlock() - { - m_currentITCondition = CondNone; - m_ITConditionIndex = 0; - m_ITBlocksize = 0; - } - - void bufferPrintf(const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3); - void appendInstructionName(const char*, bool addS = false); - - void appendInstructionNameNoITBlock(const char* instructionName) - { - bufferPrintf(" %-7.7s", instructionName); - } - - void appendRegisterName(unsigned); - void appendRegisterList(unsigned); - void appendFPRegisterName(char, unsigned); - - void appendSeparator() - { - bufferPrintf(", "); - } - - void appendCharacter(const char c) - { - bufferPrintf("%c", c); - } - - void appendString(const char* string) - { - bufferPrintf("%s", string); - } - - void appendShiftType(unsigned shiftValue) - { - bufferPrintf("%s ", shiftName(shiftValue)); - } - - void appendSignedImmediate(int immediate) - { - bufferPrintf("#%d", immediate); - } - - void appendUnsignedImmediate(unsigned immediate) - { - bufferPrintf("#%u", immediate); - } - - void appendPCRelativeOffset(int32_t immediate) - { - bufferPrintf("0x%x", reinterpret_cast<uint32_t>(m_currentPC + immediate)); - } - - void appendShiftAmount(unsigned amount) - { - bufferPrintf("lsl #%u", 16 * amount); - } - - static const int bufferSize = 81; - static const unsigned char CondNone = 0xe; - static const unsigned MaxITBlockSize = 4; - - char m_formatBuffer[bufferSize]; - unsigned char m_ifThenConditions[MaxITBlockSize]; - uint16_t* m_currentPC; - uint32_t m_opcode; - int m_bufferOffset; - int m_currentITCondition; - unsigned m_ITConditionIndex; - unsigned m_ITBlocksize; - -private: - static bool s_initialized; -}; - -#define DEFINE_STATIC_FORMAT16(klass, thisObj) \ - static const char* format(ARMv7D16BitOpcode* thisObj) { return reinterpret_cast< klass *>(thisObj)->format(); } - -class ARMv7D16BitOpcode : public ARMv7DOpcode { -private: - class OpcodeGroup { - public: - OpcodeGroup(uint16_t opcodeMask, uint16_t opcodePattern, const char* (*format)(ARMv7D16BitOpcode*)) - : m_opcodeMask(opcodeMask) - , m_opcodePattern(opcodePattern) - , m_format(format) - , m_next(0) - { - } - - void setNext(OpcodeGroup* next) - { - m_next = next; - } - - OpcodeGroup* next() - { - return m_next; - } - - bool matches(uint16_t opcode) - { - return (opcode & m_opcodeMask) == m_opcodePattern; - } - - const char* format(ARMv7D16BitOpcode* thisObj) - { - return m_format(thisObj); - } - - public: - static const unsigned opcodeTableSize = 32; - static const unsigned opcodeTableMask = opcodeTableSize-1; - - // private: - uint16_t m_opcodeMask; - uint16_t m_opcodePattern; - const char* (*m_format)(ARMv7D16BitOpcode*); - OpcodeGroup* m_next; - }; - -public: - static void init(); - - const char* defaultFormat(); - const char* doDisassemble(); - -protected: - unsigned rm() { return (m_opcode >> 3) & 0x7; } - unsigned rd() { return m_opcode & 0x7; } - unsigned opcodeGroupNumber(unsigned opcode) { return (opcode >> 11) & OpcodeGroup::opcodeTableMask; } - -private: - static OpcodeGroup* opcodeTable[OpcodeGroup::opcodeTableSize]; -}; - -class ARMv7DOpcodeAddRegisterT2 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0x4400; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeAddRegisterT2, thisObj); - -protected: - const char* format(); - - unsigned rdn() { return ((m_opcode >> 4) & 0x8) | (m_opcode & 0x7); } - unsigned rm() { return ((m_opcode >> 3) & 0xf); } -}; - -class ARMv7DOpcodeAddSPPlusImmediate : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0xc800; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeAddSPPlusImmediate, thisObj); - -protected: - const char* format(); - - unsigned rd() { return (m_opcode >> 8) & 0x7; } - unsigned immediate8() { return m_opcode & 0x0ff; } -}; - -class ARMv7DOpcodeAddSubtract : public ARMv7D16BitOpcode { -protected: - static const char* const s_opNames[2]; -}; - -class ARMv7DOpcodeAddSubtractT1 : public ARMv7DOpcodeAddSubtract { -public: - static const uint16_t s_mask = 0xfc00; - static const uint16_t s_pattern = 0x1800; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeAddSubtractT1, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 9) & 0x1; } - unsigned rm() { return (m_opcode >> 6) & 0x7; } - unsigned rn() { return (m_opcode >> 3) & 0x7; } -}; - -class ARMv7DOpcodeAddSubtractImmediate3 : public ARMv7DOpcodeAddSubtract { -public: - static const uint16_t s_mask = 0xfc00; - static const uint16_t s_pattern = 0x1c00; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeAddSubtractImmediate3, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 9) & 0x1; } - unsigned immediate3() { return (m_opcode >> 6) & 0x7; } - unsigned rn() { return (m_opcode >> 3) & 0x7; } -}; - -class ARMv7DOpcodeAddSubtractImmediate8 : public ARMv7DOpcodeAddSubtract { -public: - static const uint16_t s_mask = 0xf000; - static const uint16_t s_pattern = 0x3000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeAddSubtractImmediate8, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 11) & 0x1; } - unsigned rdn() { return (m_opcode >> 8) & 0x7; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeBranchConditionalT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf000; - static const uint16_t s_pattern = 0xd000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeBranchConditionalT1, thisObj); - -protected: - const char* format(); - - unsigned condition() { return (m_opcode >> 8) & 0xf; } - int offset() { return static_cast<int>(m_opcode & 0xff); } -}; - -class ARMv7DOpcodeBranchExchangeT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0x4700; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeBranchExchangeT1, thisObj); - -protected: - const char* format(); - - const char* opName() { return (m_opcode & 0x80) ? "blx" : "bx"; } - unsigned rm() { return ((m_opcode >> 3) & 0xf); } -}; - -class ARMv7DOpcodeBranchT2 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0xe000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeBranchT2, thisObj); - -protected: - const char* format(); - - int immediate11() { return static_cast<int>(m_opcode & 0x7ff); } -}; - -class ARMv7DOpcodeCompareImmediateT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0x2800; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeCompareImmediateT1, thisObj); - -protected: - const char* format(); - - unsigned rn() { return (m_opcode >> 8) & 0x3; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeCompareRegisterT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xffc0; - static const uint16_t s_pattern = 0x4280; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeCompareRegisterT1, thisObj); - -protected: - const char* format(); - - unsigned rn() { return m_opcode & 0x7; } -}; - -class ARMv7DOpcodeCompareRegisterT2 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0x4500; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeCompareRegisterT2, thisObj); - -protected: - const char* format(); - - unsigned rn() { return ((m_opcode >> 4) & 0x8) | (m_opcode & 0x7); } - unsigned rm() { return ((m_opcode >> 3) & 0xf); } -}; - -class ARMv7DOpcodeDataProcessingRegisterT1 : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[16]; - -public: - static const uint16_t s_mask = 0xfc00; - static const uint16_t s_pattern = 0x4000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeDataProcessingRegisterT1, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 6) & 0xf; } - - unsigned rm() { return (m_opcode >> 3) & 0x7; } - unsigned rdn() { return m_opcode & 0x7; } -}; - -class ARMv7DOpcodeGeneratePCRelativeAddress : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0xa000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeGeneratePCRelativeAddress, thisObj); - -protected: - const char* format(); - - unsigned rd() { return (m_opcode >> 8) & 0x7; } - unsigned immediate8() { return m_opcode & 0x0ff; } -}; - -class ARMv7DOpcodeLoadFromLiteralPool : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0x4800; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadFromLiteralPool, thisObj); - -protected: - const char* format(); - - unsigned rt() { return (m_opcode >> 8) & 0x7; } - unsigned immediate8() { return m_opcode & 0x0ff; } -}; - -class ARMv7DOpcodeLoadStoreRegisterImmediate : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[6]; - -public: - const char* format(); - -protected: - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return ((m_opcode >> 11) & 0x1f) - 0xc; } - unsigned immediate5() { return (m_opcode >> 6) & 0x01f; } - unsigned rn() { return (m_opcode >> 3) & 0x7; } - unsigned rt() { return m_opcode & 0x7; } - unsigned scale(); -}; - -class ARMv7DOpcodeLoadStoreRegisterImmediateWordAndByte : public ARMv7DOpcodeLoadStoreRegisterImmediate { -public: - static const uint16_t s_mask = 0xe000; - static const uint16_t s_pattern = 0x6000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadStoreRegisterImmediate, thisObj); -}; - -class ARMv7DOpcodeStoreRegisterImmediateHalfWord : public ARMv7DOpcodeLoadStoreRegisterImmediate { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0x8000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadStoreRegisterImmediate, thisObj); -}; - -class ARMv7DOpcodeLoadRegisterImmediateHalfWord : public ARMv7DOpcodeLoadStoreRegisterImmediate { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0x8800; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadStoreRegisterImmediate, thisObj); -}; - -class ARMv7DOpcodeLoadStoreRegisterOffsetT1 : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[8]; - -public: - static const uint16_t s_mask = 0xf000; - static const uint16_t s_pattern = 0x5000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadStoreRegisterOffsetT1, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[opB()]; } - - unsigned opB() { return (m_opcode >> 9) & 0x7; } - unsigned rm() { return (m_opcode >> 6) & 0x7; } - unsigned rn() { return (m_opcode >> 3) & 0x7; } - unsigned rt() { return m_opcode & 0x7; } -}; - -class ARMv7DOpcodeLoadStoreRegisterSPRelative : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[8]; - -public: - static const uint16_t s_mask = 0xf000; - static const uint16_t s_pattern = 0x9000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLoadStoreRegisterSPRelative, thisObj); - -protected: - const char* format(); - - const char* opName() { return op() ? "ldr" : "str"; } - - unsigned op() { return (m_opcode >> 11) & 0x1; } - unsigned rt() { return (m_opcode >> 8) & 0x7; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeLogicalImmediateT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xe000; - static const uint16_t s_pattern = 0x0000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeLogicalImmediateT1, thisObj); - -protected: - const char* format(); - - const char* opName() { return shiftName(op()); } - - unsigned op() { return (m_opcode >> 12) & 0x3; } - unsigned immediate5() { return (m_opcode >> 6) & 0x1f; } -}; - -class ARMv7DOpcodeMiscAddSubSP : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0xb000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscAddSubSP, thisObj); - -protected: - const char* format(); - - const char* opName() { return op() ? "sub" : "add"; } - unsigned op() { return (m_opcode >> 7) & 0x1; } - unsigned immediate7() { return m_opcode & 0x7f; } -}; - -class ARMv7DOpcodeMiscByteHalfwordOps : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[8]; - -public: - static const uint16_t s_mask = 0xf700; - static const uint16_t s_pattern = 0xb200; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscByteHalfwordOps, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - unsigned op() { return ((m_opcode >> 9) & 0x4) || ((m_opcode >> 6) & 0x3); } -}; - -class ARMv7DOpcodeMiscBreakpointT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0xbe00; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscBreakpointT1, thisObj); - -protected: - const char* format(); - - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeMiscCompareAndBranch : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf500; - static const uint16_t s_pattern = 0xb100; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscCompareAndBranch, thisObj); - -protected: - const char* format(); - - const char* opName() { return op() ? "cbnz" : "cbz"; } - unsigned op() { return (m_opcode >> 11) & 0x1; } - int32_t immediate6() { return ((m_opcode >> 4) & 0x20) | ((m_opcode >> 3) & 0x1f); } - unsigned rn() { return m_opcode & 0x7; } -}; - -class ARMv7DOpcodeMiscHint16 : public ARMv7D16BitOpcode { -private: - static const char* const s_opNames[16]; - -public: - static const uint16_t s_mask = 0xff0f; - static const uint16_t s_pattern = 0xbf00; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscHint16, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[opA()]; } - unsigned opA() { return (m_opcode >> 4) & 0xf; } -}; - -class ARMv7DOpcodeMiscIfThenT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0xbf00; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscIfThenT1, thisObj); - -protected: - const char* format(); - - unsigned firstCondition() { return (m_opcode >> 4) & 0xf; } - unsigned mask() { return m_opcode & 0xf; } -}; - -class ARMv7DOpcodeMiscPushPop : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf600; - static const uint16_t s_pattern = 0xb400; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMiscPushPop, thisObj); - -protected: - const char* format(); - - const char* opName() { return op() ? "pop" : "push"; } - unsigned op() { return (m_opcode >> 11) & 0x1; } - unsigned registerMask() { return ((m_opcode << 6) & 0x4000) | (m_opcode & 0xff); } -}; - -class ARMv7DOpcodeMoveImmediateT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xf800; - static const uint16_t s_pattern = 0x2000; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMoveImmediateT1, thisObj); - -protected: - const char* format(); - - unsigned rd() { return (m_opcode >> 8) & 0x3; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeMoveRegisterT1 : public ARMv7D16BitOpcode { -public: - static const uint16_t s_mask = 0xff00; - static const uint16_t s_pattern = 0x4600; - - DEFINE_STATIC_FORMAT16(ARMv7DOpcodeMoveRegisterT1, thisObj); - -protected: - const char* format(); - - unsigned rd() { return ((m_opcode >> 4) & 0x8) | (m_opcode & 0x7); } - unsigned rm() { return ((m_opcode >> 3) & 0xf); } -}; - -// 32 Bit instructions - -#define DEFINE_STATIC_FORMAT32(klass, thisObj) \ - static const char* format(ARMv7D32BitOpcode* thisObj) { return reinterpret_cast< klass *>(thisObj)->format(); } - -class ARMv7D32BitOpcode : public ARMv7DOpcode { -private: - class OpcodeGroup { - public: - OpcodeGroup(uint32_t opcodeMask, uint32_t opcodePattern, const char* (*format)(ARMv7D32BitOpcode*)) - : m_opcodeMask(opcodeMask) - , m_opcodePattern(opcodePattern) - , m_format(format) - , m_next(0) - { - } - - void setNext(OpcodeGroup* next) - { - m_next = next; - } - - OpcodeGroup* next() - { - return m_next; - } - - bool matches(uint32_t opcode) - { - return (opcode & m_opcodeMask) == m_opcodePattern; - } - - const char* format(ARMv7D32BitOpcode* thisObj) - { - return m_format(thisObj); - } - - public: - static const unsigned opcodeTableSize = 16; - static const unsigned opcodeTableMask = opcodeTableSize-1; - - private: - uint32_t m_opcodeMask; - uint32_t m_opcodePattern; - const char* (*m_format)(ARMv7D32BitOpcode*); - OpcodeGroup* m_next; - }; - -public: - static void init(); - - const char* defaultFormat(); - const char* doDisassemble(); - -protected: - unsigned rd() { return (m_opcode >> 8) & 0xf; } - unsigned rm() { return m_opcode & 0xf; } - unsigned rn() { return (m_opcode >> 16) & 0xf; } - unsigned rt() { return (m_opcode >> 12) & 0xf; } - - unsigned opcodeGroupNumber(unsigned opcode) { return (opcode >> 25) & OpcodeGroup::opcodeTableMask; } - -private: - static OpcodeGroup* opcodeTable[OpcodeGroup::opcodeTableSize]; -}; - -class ARMv7DOpcodeBranchRelative : public ARMv7D32BitOpcode { -protected: - unsigned sBit() { return (m_opcode >> 26) & 0x1; } - unsigned j1() { return (m_opcode >> 13) & 0x1; } - unsigned j2() { return (m_opcode >> 11) & 0x1; } - unsigned immediate11() { return m_opcode & 0x7ff; } -}; - -class ARMv7DOpcodeConditionalBranchT3 : public ARMv7DOpcodeBranchRelative { -public: - static const uint32_t s_mask = 0xf800d000; - static const uint32_t s_pattern = 0xf0008000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeConditionalBranchT3, thisObj); - -protected: - const char* format(); - - int32_t offset() { return ((static_cast<int32_t>(sBit() << 31)) >> 12) | static_cast<int32_t>((j1() << 18) | (j2() << 17) | (immediate6() << 11) | immediate11()); } - unsigned condition() { return (m_opcode >> 22) & 0xf; } - unsigned immediate6() { return (m_opcode >> 16) & 0x3f; } -}; - -class ARMv7DOpcodeBranchOrBranchLink : public ARMv7DOpcodeBranchRelative { -public: - static const uint32_t s_mask = 0xf8009000; - static const uint32_t s_pattern = 0xf0009000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeBranchOrBranchLink, thisObj); - -protected: - const char* format(); - - int32_t offset() { return ((static_cast<int32_t>(sBit() << 31)) >> 8) | static_cast<int32_t>((~(j1() ^ sBit()) << 22) | (~(j2() ^ sBit()) << 21) | (immediate10() << 11) | immediate11()); } - unsigned immediate10() { return (m_opcode >> 16) & 0x3ff; } - bool isBL() { return !!((m_opcode >> 14) & 0x1); } -}; - -class ARMv7DOpcodeDataProcessingLogicalAndRithmetic : public ARMv7D32BitOpcode { -protected: - static const char* const s_opNames[16]; -}; - -class ARMv7DOpcodeDataProcessingModifiedImmediate : public ARMv7DOpcodeDataProcessingLogicalAndRithmetic { -private: - void appendImmShift(unsigned, unsigned); - -public: - static const uint32_t s_mask = 0xfa008000; - static const uint32_t s_pattern = 0xf0000000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingModifiedImmediate, thisObj); - -protected: - const char* format(); - void appendModifiedImmediate(unsigned); - - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 21) & 0xf; } - unsigned sBit() { return (m_opcode >> 20) & 0x1; } - unsigned immediate12() { return ((m_opcode >> 15) & 0x0800) | ((m_opcode >> 4) & 0x0700) | (m_opcode & 0x00ff); } -}; - -class ARMv7DOpcodeDataProcessingShiftedReg : public ARMv7DOpcodeDataProcessingLogicalAndRithmetic { -private: - void appendImmShift(unsigned, unsigned); - -public: - static const uint32_t s_mask = 0xfe000000; - static const uint32_t s_pattern = 0xea000000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingShiftedReg, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - unsigned sBit() { return (m_opcode >> 20) & 0x1; } - unsigned op() { return (m_opcode >> 21) & 0xf; } - unsigned immediate5() { return ((m_opcode >> 10) & 0x1c) | ((m_opcode >> 6) & 0x3); } - unsigned type() { return (m_opcode >> 4) & 0x3; } - unsigned tbBit() { return (m_opcode >> 5) & 0x1; } - unsigned tBit() { return (m_opcode >> 4) & 0x1; } -}; - -class ARMv7DOpcodeDataProcessingReg : public ARMv7D32BitOpcode { -protected: - unsigned op1() { return (m_opcode >> 20) & 0xf; } - unsigned op2() { return (m_opcode >> 4) & 0xf; } -}; - -class ARMv7DOpcodeDataProcessingRegShift : public ARMv7DOpcodeDataProcessingReg { -public: - static const uint32_t s_mask = 0xffe0f0f0; - static const uint32_t s_pattern = 0xfa00f000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingRegShift, thisObj); - -protected: - const char* format(); - - const char* opName() { return shiftName((op1() >> 1) & 0x3); } -}; - -class ARMv7DOpcodeDataProcessingRegExtend : public ARMv7DOpcodeDataProcessingReg { -private: - static const char* const s_opExtendNames[8]; - static const char* const s_opExtendAndAddNames[8]; - -public: - static const uint32_t s_mask = 0xff80f0c0; - static const uint32_t s_pattern = 0xfa00f080; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingRegExtend, thisObj); - -protected: - const char* format(); - - const char* opExtendName() { return s_opExtendNames[op1()]; } - const char* opExtendAndAddName() { return s_opExtendAndAddNames[op1()]; } - unsigned rotate() { return (m_opcode >> 4) & 0x3; } -}; - -class ARMv7DOpcodeDataProcessingRegParallel : public ARMv7DOpcodeDataProcessingReg { -private: - static const char* const s_opNames[16]; - -public: - static const uint32_t s_mask = 0xff80f0e0; - static const uint32_t s_pattern = 0xfa00f000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingRegParallel, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[((op1() & 0x7) << 1) | (op2() & 0x1)]; } -}; - -class ARMv7DOpcodeDataProcessingRegMisc : public ARMv7DOpcodeDataProcessingReg { -private: - static const char* const s_opNames[16]; - -public: - static const uint32_t s_mask = 0xffc0f0c0; - static const uint32_t s_pattern = 0xfa80f080; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataProcessingRegMisc, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[((op1() & 0x3) << 2) | (op2() & 0x3)]; } -}; - -class ARMv7DOpcodeHint32 : public ARMv7D32BitOpcode { -private: - static const char* const s_opNames[8]; - -public: - static const uint32_t s_mask = 0xfff0d000; - static const uint32_t s_pattern = 0xf3a08000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeHint32, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op()]; } - - bool isDebugHint() { return (m_opcode & 0xf0) == 0xf0; } - unsigned debugOption() { return m_opcode & 0xf; } - unsigned op() { return m_opcode & 0x7; } -}; - -class ARMv7DOpcodeFPTransfer : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0xffc00e7f; - static const uint32_t s_pattern = 0xee000a10; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeFPTransfer, thisObj); - -protected: - const char* format(); - - void appendFPRegister(); - - unsigned opH() { return (m_opcode >> 21) & 0x1; } - unsigned opL() { return (m_opcode >> 20) & 0x1; } - unsigned rt() { return (m_opcode >> 12) & 0xf; } - unsigned opC() { return (m_opcode >> 8) & 0x1; } - unsigned opB() { return (m_opcode >> 5) & 0x3; } - unsigned vd() { return ((m_opcode >> 3) & 0x10) | ((m_opcode >> 16) & 0xf); } - unsigned vn() { return ((m_opcode >> 7) & 0x1) | ((m_opcode >> 15) & 0x1e); } -}; - -class ARMv7DOpcodeDataLoad : public ARMv7D32BitOpcode { -protected: - static const char* const s_opNames[8]; - -protected: - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return ((m_opcode >> 22) & 0x4) | ((m_opcode >> 21) & 0x3); } -}; - -class ARMv7DOpcodeLoadRegister : public ARMv7DOpcodeDataLoad { -public: - static const uint32_t s_mask = 0xfe900800; - static const uint32_t s_pattern = 0xf8100000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeLoadRegister, thisObj); - -protected: - const char* format(); - - unsigned immediate2() { return (m_opcode >> 4) & 0x3; } -}; - -class ARMv7DOpcodeLoadSignedImmediate : public ARMv7DOpcodeDataLoad { -public: - static const uint32_t s_mask = 0xfe900800; - static const uint32_t s_pattern = 0xf8100800; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeLoadSignedImmediate, thisObj); - -protected: - const char* format(); - - unsigned pBit() { return (m_opcode >> 10) & 0x1; } - unsigned uBit() { return (m_opcode >> 9) & 0x1; } - unsigned wBit() { return (m_opcode >> 8) & 0x1; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeLoadUnsignedImmediate : public ARMv7DOpcodeDataLoad { -public: - static const uint32_t s_mask = 0xfe900000; - static const uint32_t s_pattern = 0xf8900000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeLoadUnsignedImmediate, thisObj); - -protected: - const char* format(); - - unsigned immediate12() { return m_opcode & 0xfff; } -}; - -class ARMv7DOpcodeLongMultipleDivide : public ARMv7D32BitOpcode { -protected: - static const char* const s_opNames[8]; - static const char* const s_smlalOpNames[4]; - static const char* const s_smlaldOpNames[2]; - static const char* const s_smlsldOpNames[2]; - -public: - static const uint32_t s_mask = 0xff800000; - static const uint32_t s_pattern = 0xfb800000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeLongMultipleDivide, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op1()]; } - const char* smlalOpName() { return s_smlalOpNames[(nBit() << 1) | mBit()]; } - const char* smlaldOpName() { return s_smlaldOpNames[mBit()]; } - const char* smlsldOpName() { return s_smlsldOpNames[mBit()]; } - - unsigned rdLo() { return rt(); } - unsigned rdHi() { return rd(); } - unsigned op1() { return (m_opcode >> 20) & 0x7; } - unsigned op2() { return (m_opcode >> 4) & 0xf; } - unsigned nBit() { return (m_opcode >> 5) & 0x1; } - unsigned mBit() { return (m_opcode >> 4) & 0x1; } -}; - -class ARMv7DOpcodeDataPushPopSingle : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0xffef0fff; - static const uint32_t s_pattern = 0xf84d0d04; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataPushPopSingle, thisObj); - -protected: - const char* format(); - - const char* opName() { return op() ? "pop" : "push"; } - unsigned op() { return (m_opcode >> 20) & 0x1; } -}; - -class ARMv7DOpcodeDataPushPopMultiple : public ARMv7D32BitOpcode { -protected: - void appendRegisterList(); - - unsigned registerList() { return m_opcode & 0xffff; } - unsigned condition() { return m_opcode >> 28; } -}; - -class ARMv7DOpcodeDataPopMultiple : public ARMv7DOpcodeDataPushPopMultiple { -public: - static const uint32_t s_mask = 0x0fff0000; - static const uint32_t s_pattern = 0x08bd0000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataPopMultiple, thisObj); - -protected: - const char* format(); -}; - -class ARMv7DOpcodeDataPushMultiple : public ARMv7DOpcodeDataPushPopMultiple { -public: - static const uint32_t s_mask = 0xfe7f0000; - static const uint32_t s_pattern = 0xe82d0000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeDataPushMultiple, thisObj); - -protected: - const char* format(); -}; - -class ARMv7DOpcodeDataStoreSingle : public ARMv7D32BitOpcode { -protected: - static const char* const s_opNames[4]; - -protected: - const char* opName() { return s_opNames[op()]; } - - unsigned op() { return (m_opcode >> 21) & 0x3; } -}; - -class ARMv7DOpcodeStoreSingleImmediate12 : public ARMv7DOpcodeDataStoreSingle { -public: - static const uint32_t s_mask = 0xfff00000; - static const uint32_t s_pattern = 0xf8c00000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeStoreSingleImmediate12, thisObj); - - const char* format(); - -protected: - unsigned immediate12() { return m_opcode & 0xfff; } -}; - -class ARMv7DOpcodeStoreSingleImmediate8 : public ARMv7DOpcodeDataStoreSingle { -public: - static const uint32_t s_mask = 0xfff00800; - static const uint32_t s_pattern = 0xf8400800; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeStoreSingleImmediate8, thisObj); - - const char* format(); - -protected: - unsigned pBit() { return (m_opcode >> 10) & 0x1; } - unsigned uBit() { return (m_opcode >> 9) & 0x1; } - unsigned wBit() { return (m_opcode >> 8) & 0x1; } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeStoreSingleRegister : public ARMv7DOpcodeDataStoreSingle { -public: - static const uint32_t s_mask = 0xfff00fc0; - static const uint32_t s_pattern = 0xf8400000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeStoreSingleRegister, thisObj); - -protected: - const char* format(); - - unsigned immediate2() { return (m_opcode >> 4) & 0x3; } -}; - -class ARMv7DOpcodeUnmodifiedImmediate : public ARMv7D32BitOpcode { -protected: - static const char* const s_opNames[16]; - -public: - static const uint32_t s_mask = 0xfa008000; - static const uint32_t s_pattern = 0xf2000000; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeUnmodifiedImmediate, thisObj); - -protected: - const char* format(); - - const char* opName() { return s_opNames[op() >> 1]; } - - unsigned op() { return (m_opcode >> 20) & 0x1f; } - unsigned shBit() { return (m_opcode >> 21) & 0x1; } - unsigned bitNumOrSatImmediate() { return m_opcode & 0x1f; } - unsigned immediate5() { return ((m_opcode >> 9) & 0x1c) | ((m_opcode >> 6) & 0x3); } - unsigned immediate12() { return ((m_opcode >> 15) & 0x0800) | ((m_opcode >> 4) & 0x0700) | (m_opcode & 0x00ff); } - unsigned immediate16() { return ((m_opcode >> 4) & 0xf000) | ((m_opcode >> 15) & 0x0800) | ((m_opcode >> 4) & 0x0700) | (m_opcode & 0x00ff); } -}; - -class ARMv7DOpcodeVCMP : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0x0fbf0e50; - static const uint32_t s_pattern = 0x0eb40a40; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVCMP, thisObj); - -protected: - const char* format(); - - unsigned condition() { return m_opcode >> 28; } - unsigned dBit() { return (m_opcode >> 22) & 0x1; } - unsigned vd() { return (m_opcode >> 12) & 0xf; } - unsigned szBit() { return (m_opcode >> 8) & 0x1; } - unsigned eBit() { return (m_opcode >> 7) & 0x1; } - unsigned mBit() { return (m_opcode >> 5) & 0x1; } - unsigned vm() { return m_opcode & 0xf; } -}; - -class ARMv7DOpcodeVCVTBetweenFPAndInt : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0x0fb80e50; - static const uint32_t s_pattern = 0x0eb80a40; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVCVTBetweenFPAndInt, thisObj); - -protected: - const char* format(); - - unsigned condition() { return m_opcode >> 28; } - unsigned dBit() { return (m_opcode >> 22) & 0x1; } - unsigned op2() { return (m_opcode >> 16) & 0x7; } - unsigned vd() { return (m_opcode >> 12) & 0xf; } - unsigned szBit() { return (m_opcode >> 8) & 0x1; } - unsigned op() { return (m_opcode >> 7) & 0x1; } - unsigned mBit() { return (m_opcode >> 5) & 0x1; } - unsigned vm() { return m_opcode & 0xf; } -}; - -class ARMv7DOpcodeVLDR : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0x0f300e00; - static const uint32_t s_pattern = 0x0d100a00; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVLDR, thisObj); - -protected: - const char* format(); - - unsigned condition() { return m_opcode >> 28; } - unsigned uBit() { return (m_opcode >> 23) & 0x1; } - unsigned rn() { return (m_opcode >> 16) & 0xf; } - unsigned vd() { return ((m_opcode >> 18) & 0x10) | ((m_opcode >> 12) & 0xf); } - bool doubleReg() { return !!(m_opcode & 0x100); } - unsigned immediate8() { return m_opcode & 0xff; } -}; - -class ARMv7DOpcodeVMOVDoublePrecision : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0xffe00fd0; - static const uint32_t s_pattern = 0xec400b10; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVMOVDoublePrecision, thisObj); - -protected: - const char* format(); - - unsigned op() { return (m_opcode >> 20) & 0x1; } - unsigned rt2() { return (m_opcode >> 16) & 0xf; } - unsigned rt() { return (m_opcode >> 16) & 0xf; } - unsigned vm() { return (m_opcode & 0xf) | ((m_opcode >> 1) & 0x10); } -}; - -class ARMv7DOpcodeVMOVSinglePrecision : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0xffe00fd0; - static const uint32_t s_pattern = 0xec400a10; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVMOVSinglePrecision, thisObj); - -protected: - const char* format(); - - unsigned op() { return (m_opcode >> 20) & 0x1; } - unsigned rt2() { return (m_opcode >> 16) & 0xf; } - unsigned rt() { return (m_opcode >> 16) & 0xf; } - unsigned vm() { return ((m_opcode << 1) & 0x1e) | ((m_opcode >> 5) & 0x1); } -}; - -class ARMv7DOpcodeVMSR : public ARMv7D32BitOpcode { -public: - static const uint32_t s_mask = 0xffef0fff; - static const uint32_t s_pattern = 0xeee10a10; - - DEFINE_STATIC_FORMAT32(ARMv7DOpcodeVMSR, thisObj); - -protected: - const char* format(); - - unsigned opL() { return (m_opcode >> 20) & 0x1; } - unsigned rt() { return (m_opcode >> 12) & 0xf; } -}; - - -} } // namespace JSC::ARMv7Disassembler - -using JSC::ARMv7Disassembler::ARMv7DOpcode; - -#endif // #if USE(ARMV7_DISASSEMBLER) - -#endif // ARMv7DOpcode_h |