Merge commit '3621a6c08002c6b3e5b6f91bb0e20d8372613160' into dev
This commit is contained in:
219
external/capstone/arch/PowerPC/PPCDisassembler.c
vendored
219
external/capstone/arch/PowerPC/PPCDisassembler.c
vendored
@@ -104,6 +104,14 @@ static DecodeStatus DecodeF8RCRegisterClass(MCInst *Inst, uint64_t RegNo,
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return decodeRegisterClass(Inst, RegNo, FRegs);
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}
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static DecodeStatus DecodeFpRCRegisterClass(MCInst *Inst, uint64_t RegNo,
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uint64_t Address, const void *Decoder)
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{
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if (RegNo > 30 || (RegNo & 1))
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return MCDisassembler_Fail;
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return decodeRegisterClass(Inst, RegNo >> 1, FpRegs);
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}
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static DecodeStatus DecodeVFRCRegisterClass(MCInst *Inst, uint64_t RegNo,
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uint64_t Address,
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const void *Decoder)
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@@ -257,29 +265,39 @@ static DecodeStatus DecodeQFRCRegisterClass(MCInst *Inst, uint64_t RegNo,
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N)(MCInst * Inst, uint64_t Imm, \
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int64_t Address, const void *Decoder) \
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{ \
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if (!isUIntN(N, Imm)) \
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return MCDisassembler_Fail; \
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MCOperand_CreateImm0(Inst, (Imm)); \
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return MCDisassembler_Success; \
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}
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DEFINE_decodeUImmOperand(5) DEFINE_decodeUImmOperand(16)
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DEFINE_decodeUImmOperand(6) DEFINE_decodeUImmOperand(10)
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DEFINE_decodeUImmOperand(8) DEFINE_decodeUImmOperand(7)
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DEFINE_decodeUImmOperand(12)
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DEFINE_decodeUImmOperand(1);
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DEFINE_decodeUImmOperand(2);
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DEFINE_decodeUImmOperand(3);
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DEFINE_decodeUImmOperand(4);
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DEFINE_decodeUImmOperand(5);
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DEFINE_decodeUImmOperand(6);
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DEFINE_decodeUImmOperand(7);
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DEFINE_decodeUImmOperand(8);
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DEFINE_decodeUImmOperand(10);
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DEFINE_decodeUImmOperand(12);
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DEFINE_decodeUImmOperand(16);
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#define DEFINE_decodeSImmOperand(N) \
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static DecodeStatus CONCAT(decodeSImmOperand, \
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N)(MCInst * Inst, uint64_t Imm, \
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int64_t Address, const void *Decoder) \
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{ \
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MCOperand_CreateImm0(Inst, (SignExtend64(Imm, N))); \
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if (!isUIntN(N, Imm)) \
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return MCDisassembler_Fail; \
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MCOperand_CreateImm0(Inst, (SignExtend64((Imm), N))); \
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return MCDisassembler_Success; \
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}
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DEFINE_decodeSImmOperand(16)
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DEFINE_decodeSImmOperand(5)
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DEFINE_decodeSImmOperand(34)
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DEFINE_decodeSImmOperand(16);
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DEFINE_decodeSImmOperand(5);
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DEFINE_decodeSImmOperand(34);
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static DecodeStatus
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decodeImmZeroOperand(MCInst *Inst, uint64_t Imm, int64_t Address,
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const void *Decoder)
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static DecodeStatus decodeImmZeroOperand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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if (Imm != 0)
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return MCDisassembler_Fail;
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@@ -297,158 +315,65 @@ static DecodeStatus decodeVSRpEvenOperands(MCInst *Inst, uint64_t RegNo,
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeMemRIOperands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the memri field (imm, reg), which has the low 16-bits as the
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// displacement and the next 5 bits as the register #.
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uint64_t Base = Imm >> 16;
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uint64_t Disp = Imm & 0xFFFF;
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switch (MCInst_getOpcode(Inst)) {
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default:
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break;
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case PPC_LBZU:
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case PPC_LHAU:
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case PPC_LHZU:
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case PPC_LWZU:
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case PPC_LFSU:
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case PPC_LFDU:
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// Add the tied output operand.
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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break;
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case PPC_STBU:
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case PPC_STHU:
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case PPC_STWU:
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case PPC_STFSU:
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case PPC_STFDU:
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MCInst_insert0(Inst, 0,
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MCOperand_CreateReg1(Inst, RRegsNoR0[Base]));
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break;
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}
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MCOperand_CreateImm0(Inst, (SignExtend64(Disp, 16)));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeMemRIXOperands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the memrix field (imm, reg), which has the low 14-bits as the
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// displacement and the next 5 bits as the register #.
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uint64_t Base = Imm >> 14;
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uint64_t Disp = Imm & 0x3FFF;
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if (MCInst_getOpcode(Inst) == PPC_LDU)
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// Add the tied output operand.
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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else if (MCInst_getOpcode(Inst) == PPC_STDU)
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MCInst_insert0(Inst, 0,
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MCOperand_CreateReg1(Inst, RRegsNoR0[Base]));
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MCOperand_CreateImm0(Inst, (SignExtend64(Disp << 2, 16)));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeMemRIHashOperands(MCInst *Inst, uint64_t Imm,
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int64_t Address,
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const void *Decoder)
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{
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// Decode the memrix field for a hash store or hash check operation.
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// The field is composed of a register and an immediate value that is 6 bits
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// and covers the range -8 to -512. The immediate is always negative and 2s
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// complement which is why we sign extend a 7 bit value.
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const uint64_t Base = Imm >> 6;
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const int64_t Disp = SignExtend64((Imm & 0x3F) + 64, 7) * 8;
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MCOperand_CreateImm0(Inst, (Disp));
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MCOperand_CreateReg0(Inst, (RRegs[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeMemRIX16Operands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the memrix16 field (imm, reg), which has the low 12-bits as the
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// displacement with 16-byte aligned, and the next 5 bits as the register #.
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uint64_t Base = Imm >> 12;
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uint64_t Disp = Imm & 0xFFF;
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MCOperand_CreateImm0(Inst, (SignExtend64(Disp << 4, 16)));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeMemRI34PCRelOperands(MCInst *Inst, uint64_t Imm,
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int64_t Address,
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const void *Decoder)
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{
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// Decode the memri34_pcrel field (imm, reg), which has the low 34-bits as
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// the displacement, and the next 5 bits as an immediate 0.
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uint64_t Base = Imm >> 34;
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uint64_t Disp = Imm & 0x3FFFFFFFFUL;
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MCOperand_CreateImm0(Inst, (SignExtend64(Disp, 34)));
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return decodeImmZeroOperand(Inst, Base, Address, Decoder);
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}
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static DecodeStatus decodeMemRI34Operands(MCInst *Inst, uint64_t Imm,
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static DecodeStatus decodeDispSPE8Operand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the memri34 field (imm, reg), which has the low 34-bits as the
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// displacement, and the next 5 bits as the register #.
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uint64_t Base = Imm >> 34;
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uint64_t Disp = Imm & 0x3FFFFFFFFUL;
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// Decode the dispSPE8 field, which has 5-bits, 8-byte aligned.
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MCOperand_CreateImm0(Inst, (SignExtend64(Disp, 34)));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeSPE8Operands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the spe8disp field (imm, reg), which has the low 5-bits as the
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// displacement with 8-byte aligned, and the next 5 bits as the register #.
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uint64_t Base = Imm >> 5;
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uint64_t Disp = Imm & 0x1F;
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MCOperand_CreateImm0(Inst, (Disp << 3));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeSPE4Operands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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static DecodeStatus decodeDispSPE4Operand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the spe4disp field (imm, reg), which has the low 5-bits as the
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// displacement with 4-byte aligned, and the next 5 bits as the register #.
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// Decode the dispSPE8 field, which has 5-bits, 4-byte aligned.
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uint64_t Base = Imm >> 5;
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uint64_t Disp = Imm & 0x1F;
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MCOperand_CreateImm0(Inst, (Disp << 2));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeSPE2Operands(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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static DecodeStatus decodeDispSPE2Operand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// Decode the spe2disp field (imm, reg), which has the low 5-bits as the
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// displacement with 2-byte aligned, and the next 5 bits as the register #.
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// Decode the dispSPE8 field, which has 5-bits, 2-byte aligned.
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uint64_t Base = Imm >> 5;
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uint64_t Disp = Imm & 0x1F;
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MCOperand_CreateImm0(Inst, (Disp << 1));
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MCOperand_CreateReg0(Inst, (RRegsNoR0[Base]));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeDispRIXOperand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// The rix displacement is an immediate shifted by 2
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MCOperand_CreateImm0(Inst, (SignExtend64((Imm << 2), 16)));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeDispRIX16Operand(MCInst *Inst, uint64_t Imm,
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int64_t Address, const void *Decoder)
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{
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// The rix16 displacement has 12-bits which are shifted by 4.
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MCOperand_CreateImm0(Inst, (SignExtend64((Imm << 4), 16)));
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return MCDisassembler_Success;
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}
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static DecodeStatus decodeDispRIHashOperand(MCInst *Inst, uint64_t Imm,
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int64_t Address,
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const void *Decoder)
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{
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// Decode the disp field for a hash store or hash check operation.
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// The field is composed of an immediate value that is 6 bits
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// and covers the range -8 to -512. The immediate is always negative and 2s
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// complement which is why we sign extend a 7 bit value.
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const int64_t Disp = SignExtend64(((Imm & 0x3F) + 64), 7) * 8;
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MCOperand_CreateImm0(Inst, (Disp));
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return MCDisassembler_Success;
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}
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@@ -486,7 +411,7 @@ DecodeStatus getInstruction(csh ud, const uint8_t *Bytes, size_t BytesLen,
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uint32_t BaseInst = readBytes32(MI, Bytes + 4);
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uint64_t Inst = BaseInst | (uint64_t)Prefix << 32;
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DecodeStatus result =
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decodeInstruction_4(DecoderTable64, MI, Inst, Address);
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decodeInstruction_4(DecoderTable64, MI, Inst, Address, NULL);
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if (result != MCDisassembler_Fail) {
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*Size = 8;
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return result;
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@@ -505,22 +430,22 @@ DecodeStatus getInstruction(csh ud, const uint8_t *Bytes, size_t BytesLen,
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if (PPC_getFeatureBits(MI->csh->mode, PPC_FeatureQPX)) {
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DecodeStatus result = decodeInstruction_4(DecoderTableQPX32, MI,
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Inst, Address);
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Inst, Address, NULL);
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if (result != MCDisassembler_Fail)
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return result;
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} else if (PPC_getFeatureBits(MI->csh->mode, PPC_FeatureSPE)) {
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DecodeStatus result = decodeInstruction_4(DecoderTableSPE32, MI,
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Inst, Address);
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Inst, Address, NULL);
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if (result != MCDisassembler_Fail)
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return result;
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} else if (PPC_getFeatureBits(MI->csh->mode, PPC_FeaturePS)) {
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DecodeStatus result = decodeInstruction_4(DecoderTablePS32, MI,
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Inst, Address);
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Inst, Address, NULL);
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if (result != MCDisassembler_Fail)
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return result;
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}
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return decodeInstruction_4(DecoderTable32, MI, Inst, Address);
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return decodeInstruction_4(DecoderTable32, MI, Inst, Address, NULL);
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}
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DecodeStatus PPC_LLVM_getInstruction(csh handle, const uint8_t *Bytes,
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