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++ /*
++ * Copyright (C) 2012 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 A64DOpcode_h
++ #define A64DOpcode_h
++
++ #include <wtf/Assertions.h>
++ #include <stdint.h>
++
++ namespace JSC { namespace ARM64Disassembler {
++
++ class A64DOpcode {
++ private:
++ class OpcodeGroup {
++ public:
++ OpcodeGroup(uint32_t opcodeMask, uint32_t opcodePattern, const char* (*format)(A64DOpcode*))
++ : 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(A64DOpcode* thisObj)
++ {
++ return m_format(thisObj);
++ }
++
++ private:
++ uint32_t m_opcodeMask;
++ uint32_t m_opcodePattern;
++ const char* (*m_format)(A64DOpcode*);
++ OpcodeGroup* m_next;
++ };
++
++ public:
++ static void init();
++
++ A64DOpcode()
++ : m_opcode(0)
++ , m_bufferOffset(0)
++ {
++ init();
++ m_formatBuffer[0] = '\0';
++ }
++
++ const char* disassemble(uint32_t* currentPC);
++
++ protected:
++ void setPCAndOpcode(uint32_t*, uint32_t);
++ const char* format();
++
++ static const char* const s_conditionNames[16];
++ static const char* const s_shiftNames[4];
++ static const char* const s_optionName[8];
++ static const char s_FPRegisterPrefix[5];
++
++ static const char* conditionName(unsigned condition) { return s_conditionNames[condition & 0xf]; }
++ static const char* shiftName(unsigned shiftValue) { return s_shiftNames[shiftValue & 0x3]; }
++ const char* optionName() { return s_optionName[option()]; }
++ static char FPRegisterPrefix(unsigned FPRegisterSize)
++ {
++ if (FPRegisterSize > 4)
++ FPRegisterSize = 4;
++ return s_FPRegisterPrefix[FPRegisterSize];
++ }
++
++ unsigned opcodeGroupNumber(uint32_t opcode) { return (opcode >> 24) & 0x1f; }
++
++ bool is64Bit() { return m_opcode & 0x80000000; }
++ unsigned size() { return m_opcode >> 30; }
++ unsigned option() { return (m_opcode >> 13) & 0x7; }
++ unsigned rd() { return m_opcode & 0x1f; }
++ unsigned rt() { return m_opcode & 0x1f; }
++ unsigned rn() { return (m_opcode >> 5) & 0x1f; }
++ unsigned rm() { return (m_opcode >> 16) & 0x1f; }
++
++ void bufferPrintf(const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3);
++
++ void appendInstructionName(const char* instructionName)
++ {
++ bufferPrintf(" %-7.7s", instructionName);
++ }
++
++ void appendRegisterName(unsigned registerNumber, bool is64Bit = true);
++ void appendSPOrRegisterName(unsigned registerNumber, bool is64Bit = true)
++ {
++ if (registerNumber == 31) {
++ bufferPrintf(is64Bit ? "sp" : "wsp");
++ return;
++ }
++ appendRegisterName(registerNumber, is64Bit);
++ }
++
++ void appendZROrRegisterName(unsigned registerNumber, bool is64Bit = true)
++ {
++ if (registerNumber == 31) {
++ bufferPrintf(is64Bit ? "xzr" : "wzr");
++ return;
++ }
++ appendRegisterName(registerNumber, is64Bit);
++ }
++
++ void appendFPRegisterName(unsigned registerNumber, unsigned registerSize);
++
++ 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 appendUnsignedImmediate64(uint64_t immediate)
++ {
++ bufferPrintf("#0x%" PRIx64, immediate);
++ }
++
++ void appendPCRelativeOffset(uint32_t* pc, int32_t immediate)
++ {
++ bufferPrintf("0x%" PRIx64, reinterpret_cast<uint64_t>(pc + immediate));
++ }
++
++ void appendShiftAmount(unsigned amount)
++ {
++ bufferPrintf("lsl #%u", 16 * amount);
++ }
++
++ static const int bufferSize = 81;
++
++ char m_formatBuffer[bufferSize];
++ uint32_t* m_currentPC;
++ uint32_t m_opcode;
++ int m_bufferOffset;
++
++ private:
++ static OpcodeGroup* opcodeTable[32];
++
++ static bool s_initialized;
++ };
++
++ #define DEFINE_STATIC_FORMAT(klass, thisObj) \
++ static const char* format(A64DOpcode* thisObj) { return reinterpret_cast< klass *>(thisObj)->format(); }
++
++ class A64DOpcodeAddSubtract : public A64DOpcode {
++ private:
++ static const char* const s_opNames[4];
++
++ public:
++ const char* opName() { return s_opNames[opAndS()]; }
++ const char* cmpName() { return op() ? "cmp" : "cmn"; }
++
++ bool isCMP() { return (sBit() && rd() == 31); }
++ unsigned op() { return (m_opcode >> 30) & 0x1; }
++ unsigned sBit() { return (m_opcode >> 29) & 0x1; }
++ unsigned opAndS() { return (m_opcode >> 29) & 0x3; }
++ };
++
++ class A64DOpcodeAddSubtractImmediate : public A64DOpcodeAddSubtract {
++ public:
++ static const uint32_t mask = 0x1f000000;
++ static const uint32_t pattern = 0x11000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeAddSubtractImmediate, thisObj);
++
++ const char* format();
++
++ bool isMovSP() { return (!opAndS() && !immed12() && ((rd() == 31) || rn() == 31)); }
++ unsigned shift() { return (m_opcode >> 22) & 0x3; }
++ unsigned immed12() { return (m_opcode >> 10) & 0xfff; }
++ };
++
++ class A64DOpcodeAddSubtractExtendedRegister : public A64DOpcodeAddSubtract {
++ public:
++ static const uint32_t mask = 0x1fe00000;
++ static const uint32_t pattern = 0x0b200000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeAddSubtractExtendedRegister, thisObj);
++
++ const char* format();
++
++ unsigned immediate3() { return (m_opcode >> 10) & 0x7; }
++ };
++
++ class A64DOpcodeAddSubtractShiftedRegister : public A64DOpcodeAddSubtract {
++ public:
++ static const uint32_t mask = 0x1f200000;
++ static const uint32_t pattern = 0x0b000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeAddSubtractShiftedRegister, thisObj);
++
++ const char* format();
++
++ bool isNeg() { return (op() && rn() == 31); }
++ const char* negName() { return sBit() ? "negs" : "neg"; }
++ unsigned shift() { return (m_opcode >> 22) & 0x3; }
++ int immediate6() { return (static_cast<int>((m_opcode >> 10) & 0x3f) << 26) >> 26; }
++ };
++
++ class A64DOpcodeBitfield : public A64DOpcode {
++ private:
++ static const char* const s_opNames[3];
++ static const char* const s_extendPseudoOpNames[3][3];
++ static const char* const s_insertOpNames[3];
++ static const char* const s_extractOpNames[3];
++
++ public:
++ static const uint32_t mask = 0x1f800000;
++ static const uint32_t pattern = 0x13000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeBitfield, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opc()]; }
++ const char* extendPseudoOpNames(unsigned opSize) { return s_extendPseudoOpNames[opc()][opSize]; }
++ const char* insertOpNames() { return s_insertOpNames[opc()]; }
++ const char* extractOpNames() { return s_extractOpNames[opc()]; }
++
++ unsigned opc() { return (m_opcode >> 29) & 0x3; }
++ unsigned nBit() { return (m_opcode >> 22) & 0x1; }
++ unsigned immediateR() { return (m_opcode >> 16) & 0x3f; }
++ unsigned immediateS() { return (m_opcode >> 10) & 0x3f; }
++ };
++
++ class A64DOpcodeCompareAndBranchImmediate : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0x7e000000;
++ static const uint32_t pattern = 0x34000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeCompareAndBranchImmediate, thisObj);
++
++ const char* format();
++
++ unsigned opBit() { return (m_opcode >> 24) & 0x1; }
++ int immediate19() { return (static_cast<int>((m_opcode >> 5) & 0x7ffff) << 13) >> 13; }
++ };
++
++ class A64DOpcodeConditionalBranchImmediate : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0xff000010;
++ static const uint32_t pattern = 0x54000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeConditionalBranchImmediate, thisObj);
++
++ const char* format();
++
++ unsigned condition() { return m_opcode & 0xf; }
++ int immediate19() { return (static_cast<int>((m_opcode >> 5) & 0x7ffff) << 13) >> 13; }
++ };
++
++ class A64DOpcodeConditionalSelect : public A64DOpcode {
++ private:
++ static const char* const s_opNames[4];
++
++ public:
++ static const uint32_t mask = 0x1fe00010;
++ static const uint32_t pattern = 0x1a800000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeConditionalSelect, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNum()]; }
++ unsigned opNum() { return (op() << 1 | (op2() & 0x1)); }
++ unsigned op() { return (m_opcode >> 30) & 0x1; }
++ unsigned sBit() { return (m_opcode >> 29) & 0x1; }
++ unsigned condition() { return (m_opcode >> 12) & 0xf; }
++ unsigned op2() { return (m_opcode >> 10) & 0x3; }
++ };
++
++ class A64DOpcodeDataProcessing2Source : public A64DOpcode {
++ private:
++ static const char* const s_opNames[8];
++
++ public:
++ static const uint32_t mask = 0x5fe00000;
++ static const uint32_t pattern = 0x1ac00000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeDataProcessing2Source, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNameIndex()]; }
++ unsigned sBit() { return (m_opcode >> 29) & 0x1; }
++ unsigned opCode() { return (m_opcode >> 10) & 0x3f; }
++ unsigned opNameIndex() { return ((m_opcode >> 11) & 0x4) | ((m_opcode >> 10) & 0x3); }
++ };
++
++ class A64DOpcodeDataProcessing3Source : public A64DOpcode {
++ private:
++ static const char* const s_opNames[16];
++ static const char* const s_pseudoOpNames[16];
++
++ public:
++ static const uint32_t mask = 0x1f000000;
++ static const uint32_t pattern = 0x1b000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeDataProcessing3Source, thisObj);
++
++ const char* format();
++
++ const char* opName() { return ra() == 31 ? s_opNames[opNum() & 0xf] : s_pseudoOpNames[opNum() & 0xf]; }
++ unsigned ra() { return (m_opcode >> 10) & 0x1f; }
++ unsigned op54() { return (m_opcode >> 29) & 0x3; }
++ unsigned op31() { return (m_opcode >> 21) & 0x7; }
++ unsigned op0() { return (m_opcode >> 15) & 0x1; }
++ unsigned opNum() { return ((m_opcode >> 25) & 0x30) | ((m_opcode >> 20) & 0xe) | ((m_opcode >> 15) & 0x1); }
++ };
++
++ class A64OpcodeExceptionGeneration : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0xff000010;
++ static const uint32_t pattern = 0xd4000000;
++
++ DEFINE_STATIC_FORMAT(A64OpcodeExceptionGeneration, thisObj);
++
++ const char* format();
++
++ unsigned opc() { return (m_opcode>>21) & 0x7; }
++ unsigned op2() { return (m_opcode>>2) & 0x7; }
++ unsigned ll() { return m_opcode & 0x3; }
++ int immediate16() { return (static_cast<int>((m_opcode >> 5) & 0xffff) << 16) >> 16; }
++ };
++
++ class A64DOpcodeExtract : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0x1f800000;
++ static const uint32_t pattern = 0x13800000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeExtract, thisObj);
++
++ const char* format();
++
++ unsigned op21() { return (m_opcode >> 29) & 0x3; }
++ unsigned nBit() { return (m_opcode >> 22) & 0x1; }
++ unsigned o0Bit() { return (m_opcode >> 21) & 0x1; }
++ unsigned immediateS() { return (m_opcode >> 10) & 0x3f; }
++ };
++
++ class A64DOpcodeFloatingPointOps : public A64DOpcode {
++ public:
++ unsigned mBit() { return (m_opcode >> 31) & 0x1; }
++ unsigned sBit() { return (m_opcode >> 29) & 0x1; }
++ unsigned type() { return (m_opcode >> 22) & 0x3; }
++ };
++
++ class A64DOpcodeFloatingPointCompare : public A64DOpcodeFloatingPointOps {
++ private:
++ static const char* const s_opNames[16];
++
++ public:
++ static const uint32_t mask = 0x5f203c00;
++ static const uint32_t pattern = 0x1e202000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeFloatingPointCompare, thisObj);
++
++ const char* format();
++
++ const char* opName() { return (opNum() & 0x2) ? "fcmpe" : "fcmp"; }
++
++ unsigned op() { return (m_opcode >> 14) & 0x3; }
++ unsigned opCode2() { return m_opcode & 0x1f; }
++ unsigned opNum() { return (m_opcode >> 3) & 0x3; }
++ };
++
++ class A64DOpcodeFloatingPointDataProcessing1Source : public A64DOpcodeFloatingPointOps {
++ private:
++ static const char* const s_opNames[16];
++
++ public:
++ static const uint32_t mask = 0x5f207c00;
++ static const uint32_t pattern = 0x1e204000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeFloatingPointDataProcessing1Source, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNum()]; }
++
++ unsigned opNum() { return (m_opcode >> 15) & 0x3f; }
++ };
++
++ class A64DOpcodeFloatingPointDataProcessing2Source : public A64DOpcodeFloatingPointOps {
++ private:
++ static const char* const s_opNames[16];
++
++ public:
++ static const uint32_t mask = 0x5f200800;
++ static const uint32_t pattern = 0x1e200800;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeFloatingPointDataProcessing2Source, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNum()]; }
++
++ unsigned opNum() { return (m_opcode >> 12) & 0xf; }
++ };
++
++ class A64DOpcodeFloatingFixedPointConversions : public A64DOpcodeFloatingPointOps {
++ private:
++ static const char* const s_opNames[4];
++
++ public:
++ static const uint32_t mask = 0x5f200000;
++ static const uint32_t pattern = 0x1e000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeFloatingFixedPointConversions, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNum()]; }
++ unsigned rmode() { return (m_opcode >> 19) & 0x3; }
++ unsigned opcode() { return (m_opcode >> 16) & 0x7; }
++ unsigned scale() { return (m_opcode >> 10) & 0x3f; }
++ unsigned opNum() { return (m_opcode >> 16) & 0x3; }
++ };
++
++ class A64DOpcodeFloatingPointIntegerConversions : public A64DOpcodeFloatingPointOps {
++ private:
++ static const char* const s_opNames[32];
++
++ public:
++ static const uint32_t mask = 0x5f20fc00;
++ static const uint32_t pattern = 0x1e200000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeFloatingPointIntegerConversions, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opNum()]; }
++ unsigned rmode() { return (m_opcode >> 19) & 0x3; }
++ unsigned opcode() { return (m_opcode >> 16) & 0x7; }
++ unsigned opNum() { return (m_opcode >> 16) & 0x1f; }
++ };
++
++ class A64DOpcodeHint : public A64DOpcode {
++ private:
++ static const char* const s_opNames[6];
++
++ public:
++ static const uint32_t mask = 0xfffff01f;
++ static const uint32_t pattern = 0xd503201f;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeHint, thisObj);
++
++ const char* format();
++
++ const char* opName() { return immediate7() <= 5 ? s_opNames[immediate7()] : "hint"; }
++ unsigned immediate7() { return (m_opcode >> 5) & 0x7f; }
++ };
++
++ class A64DOpcodeLoadStore : public A64DOpcode {
++ private:
++ static const char* const s_opNames[32];
++
++ protected:
++ const char* opName()
++ {
++ return s_opNames[opNumber()];
++ }
++
++ unsigned size() { return (m_opcode >> 30) & 0x3; }
++ unsigned vBit() { return (m_opcode >> 26) & 0x1; }
++ unsigned opc() { return (m_opcode >> 22) & 0x3; }
++ unsigned opNumber() { return (size() <<3 ) | (vBit() << 2) | opc(); }
++ bool is64BitRT() { return ((opNumber() & 0x17) == 0x02) || ((opNumber() & 0x1e) == 0x18); }
++ };
++
++ class A64DOpcodeLoadStoreImmediate : public A64DOpcodeLoadStore {
++ private:
++ static const char* const s_unprivilegedOpNames[32];
++ static const char* const s_unscaledOpNames[32];
++
++ public:
++ static const uint32_t mask = 0x3b200000;
++ static const uint32_t pattern = 0x38000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLoadStoreImmediate, thisObj);
++
++ const char* format();
++
++ const char* unprivilegedOpName()
++ {
++ return s_unprivilegedOpNames[opNumber()];
++ }
++ const char* unscaledOpName()
++ {
++ return s_unscaledOpNames[opNumber()];
++ }
++ unsigned type() { return (m_opcode >> 10) & 0x3; }
++ int immediate9() { return (static_cast<int>((m_opcode >> 12) & 0x1ff) << 23) >> 23; }
++ };
++
++ class A64DOpcodeLoadStoreRegisterOffset : public A64DOpcodeLoadStore {
++ public:
++ static const uint32_t mask = 0x3b200c00;
++ static const uint32_t pattern = 0x38200800;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLoadStoreRegisterOffset, thisObj);
++
++ const char* format();
++
++ unsigned option() { return (m_opcode >> 13) & 0x7; }
++ int sBit() { return (m_opcode >> 12) & 0x1; }
++ };
++
++ class A64DOpcodeLoadStoreRegisterPair : public A64DOpcodeLoadStore {
++ public:
++ static const uint32_t mask = 0x3a000000;
++ static const uint32_t pattern = 0x28000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLoadStoreRegisterPair, thisObj);
++
++ const char* format();
++ const char* opName();
++
++ unsigned rt2() { return (m_opcode >> 10) & 0x1f; }
++ int immediate7() { return (static_cast<int>((m_opcode >> 15) & 0x7f) << 25) >> 25; }
++ unsigned offsetMode() { return (m_opcode >> 23) & 0x7; }
++ int lBit() { return (m_opcode >> 22) & 0x1; }
++ };
++
++ class A64DOpcodeLoadStoreUnsignedImmediate : public A64DOpcodeLoadStore {
++ public:
++ static const uint32_t mask = 0x3b000000;
++ static const uint32_t pattern = 0x39000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLoadStoreUnsignedImmediate, thisObj);
++
++ const char* format();
++
++ unsigned immediate12() { return (m_opcode >> 10) & 0xfff; }
++ };
++
++ class A64DOpcodeLogical : public A64DOpcode {
++ private:
++ static const char* const s_opNames[8];
++
++ public:
++ const char* opName(unsigned opNumber)
++ {
++ return s_opNames[opNumber & 0x7];
++ }
++
++ unsigned opc() { return (m_opcode >> 29) & 0x3; }
++ unsigned nBit() { return (m_opcode >> 21) & 0x1; }
++ };
++
++ class A64DOpcodeLogicalImmediate : public A64DOpcodeLogical {
++ public:
++ static const uint32_t mask = 0x1f800000;
++ static const uint32_t pattern = 0x12000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLogicalImmediate, thisObj);
++
++ const char* format();
++
++ bool isTst() { return ((opNumber() == 6) && (rd() == 31)); }
++ bool isMov() { return ((opNumber() == 2) && (rn() == 31)); }
++ unsigned opNumber() { return opc() << 1; }
++ unsigned nBit() { return (m_opcode >> 22) & 0x1; }
++ unsigned immediateR() { return (m_opcode >> 16) & 0x3f; }
++ unsigned immediateS() { return (m_opcode >> 10) & 0x3f; }
++ };
++
++ class A64DOpcodeLogicalShiftedRegister : public A64DOpcodeLogical {
++ public:
++ static const uint32_t mask = 0x1f000000;
++ static const uint32_t pattern = 0x0a000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeLogicalShiftedRegister, thisObj);
++
++ const char* format();
++
++ bool isTst() { return ((opNumber() == 6) && (rd() == 31)); }
++ bool isMov() { return ((opNumber() == 2) && (rn() == 31)); }
++ unsigned opNumber() { return (opc() << 1) | nBit(); }
++ unsigned shift() { return (m_opcode >> 22) & 0x3; }
++ int immediate6() { return (static_cast<int>((m_opcode >> 10) & 0x3f) << 26) >> 26; }
++ };
++
++ class A64DOpcodeMoveWide : public A64DOpcode {
++ private:
++ static const char* const s_opNames[4];
++
++ public:
++ static const uint32_t mask = 0x1f800000;
++ static const uint32_t pattern = 0x12800000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeMoveWide, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opc()]; }
++ unsigned opc() { return (m_opcode >> 29) & 0x3; }
++ unsigned hw() { return (m_opcode >> 21) & 0x3; }
++ unsigned immediate16() { return (m_opcode >> 5) & 0xffff; }
++ };
++
++ class A64DOpcodeTestAndBranchImmediate : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0x7e000000;
++ static const uint32_t pattern = 0x36000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeTestAndBranchImmediate, thisObj);
++
++ const char* format();
++
++ unsigned bitNumber() { return ((m_opcode >> 26) & 0x20) | ((m_opcode >> 19) & 0x1f); }
++ unsigned opBit() { return (m_opcode >> 24) & 0x1; }
++ int immediate14() { return (static_cast<int>((m_opcode >> 5) & 0x3fff) << 18) >> 18; }
++ };
++
++ class A64DOpcodeUnconditionalBranchImmediate : public A64DOpcode {
++ public:
++ static const uint32_t mask = 0x7c000000;
++ static const uint32_t pattern = 0x14000000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeUnconditionalBranchImmediate, thisObj);
++
++ const char* format();
++
++ unsigned op() { return (m_opcode >> 31) & 0x1; }
++ int immediate26() { return (static_cast<int>(m_opcode & 0x3ffffff) << 6) >> 6; }
++ };
++
++ class A64DOpcodeUnconditionalBranchRegister : public A64DOpcode {
++ private:
++ static const char* const s_opNames[8];
++
++ public:
++ static const uint32_t mask = 0xfe1ffc1f;
++ static const uint32_t pattern = 0xd61f0000;
++
++ DEFINE_STATIC_FORMAT(A64DOpcodeUnconditionalBranchRegister, thisObj);
++
++ const char* format();
++
++ const char* opName() { return s_opNames[opc()]; }
++ unsigned opc() { return (m_opcode >> 21) & 0xf; }
++ };
++
++ } } // namespace JSC::ARM64Disassembler
++
++ using JSC::ARM64Disassembler::A64DOpcode;
++
++ #endif // A64DOpcode_h