#include "MCTargetDesc/CSKYBaseInfo.h"
#include "MCTargetDesc/CSKYMCTargetDesc.h"
#include "TargetInfo/CSKYTargetInfo.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDecoder.h"
#include "llvm/MC/MCDecoderOps.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Endian.h"
#include "CSKYGenDisassemblerTables.inc"

Macros
#define	DEBUG_TYPE "csky-disassembler"

Typedefs
typedef MCDisassembler::DecodeStatus	DecodeStatus

Functions
static MCDisassembler *	createCSKYDisassembler (const Target &T, const MCSubtargetInfo &STI, MCContext &Ctx)

LLVM_EXTERNAL_VISIBILITY void	LLVMInitializeCSKYDisassembler ()

static DecodeStatus	DecodeGPRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeFPR32RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodesFPR32RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodesFPR64RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodesFPR64_VRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeFPR64RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static LLVM_ATTRIBUTE_UNUSED DecodeStatus	DecodesFPR128RegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodesGPRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodemGPRRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static LLVM_ATTRIBUTE_UNUSED DecodeStatus	DecodeGPRSPRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeGPRPairRegisterClass (MCInst &Inst, uint64_t RegNo, uint64_t Address, const MCDisassembler *Decoder)

template<unsigned N, unsigned S>
static DecodeStatus	decodeUImmOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

template<unsigned N>
static DecodeStatus	decodeOImmOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	decodeLRW16Imm8 (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	decodeJMPIXImmOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeRegSeqOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeRegSeqOperandF1 (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeRegSeqOperandD1 (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeRegSeqOperandF2 (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	DecodeRegSeqOperandD2 (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static DecodeStatus	decodeImmShiftOpValue (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

template<unsigned N, unsigned S>
static DecodeStatus	decodeSImmOperand (MCInst &Inst, uint64_t Imm, int64_t Address, const MCDisassembler *Decoder)

static bool	decodeFPUV3Instruction (MCInst &MI, uint32_t insn, uint64_t Address, const MCDisassembler *DisAsm, const MCSubtargetInfo &STI)

Variables
static const uint16_t	GPRDecoderTable []

static const uint16_t	GPRPairDecoderTable []

static const uint16_t	FPR32DecoderTable []

static const uint16_t	FPR64DecoderTable []

static const uint16_t	FPR128DecoderTable []

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "csky-disassembler"

Definition at line 30 of file CSKYDisassembler.cpp.

Typedef Documentation

◆ DecodeStatus

typedef MCDisassembler::DecodeStatus DecodeStatus

Definition at line 32 of file CSKYDisassembler.cpp.

Function Documentation

◆ createCSKYDisassembler()

static MCDisassembler * createCSKYDisassembler	(	const Target &	T,
		const MCSubtargetInfo &	STI,
		MCContext &	Ctx
	)

static

Definition at line 55 of file CSKYDisassembler.cpp.

Referenced by LLVMInitializeCSKYDisassembler().

◆ DecodeFPR32RegisterClass()

static DecodeStatus DecodeFPR32RegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 119 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR32DecoderTable, and llvm::MCDisassembler::Success.

Referenced by DecodeRegSeqOperandF2().

◆ DecodeFPR64RegisterClass()

static DecodeStatus DecodeFPR64RegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 159 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR64DecoderTable, and llvm::MCDisassembler::Success.

Referenced by DecodeRegSeqOperandD2().

◆ decodeFPUV3Instruction()

static bool decodeFPUV3Instruction	(	MCInst &	MI,
		uint32_t	insn,
		uint64_t	Address,
		const MCDisassembler *	DisAsm,
		const MCSubtargetInfo &	STI
	)

static

Definition at line 496 of file CSKYDisassembler.cpp.

References Address, llvm::dbgs(), llvm::MCDisassembler::Fail, llvm::MCSubtargetInfo::hasFeature(), LLVM_DEBUG, and MI.

◆ DecodeGPRPairRegisterClass()

static DecodeStatus DecodeGPRPairRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 213 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, llvm::MCSubtargetInfo::getFeatureBits(), llvm::MCDisassembler::getSubtargetInfo(), GPRPairDecoderTable, and llvm::MCDisassembler::Success.

◆ DecodeGPRRegisterClass()

static DecodeStatus DecodeGPRRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 109 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, and llvm::MCDisassembler::Success.

Referenced by DecodeRegSeqOperand().

◆ DecodeGPRSPRegisterClass()

static LLVM_ATTRIBUTE_UNUSED DecodeStatus DecodeGPRSPRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 203 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, and llvm::MCDisassembler::Success.

◆ decodeImmShiftOpValue()

static DecodeStatus decodeImmShiftOpValue	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 362 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createImm(), llvm::Log2_64(), and llvm::MCDisassembler::Success.

◆ decodeJMPIXImmOperand()

static DecodeStatus decodeJMPIXImmOperand	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 258 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), llvm::MCDisassembler::Fail, and llvm::MCDisassembler::Success.

◆ decodeLRW16Imm8()

static DecodeStatus decodeLRW16Imm8	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 245 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ DecodemGPRRegisterClass()

static DecodeStatus DecodemGPRRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 191 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, and llvm::MCDisassembler::Success.

◆ decodeOImmOperand()

template<unsigned N>

static DecodeStatus decodeOImmOperand	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 237 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ DecodeRegSeqOperand()

static DecodeStatus DecodeRegSeqOperand	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 277 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createReg(), DecodeGPRRegisterClass(), llvm::MCDisassembler::Fail, GPRDecoderTable, and llvm::MCDisassembler::Success.

◆ DecodeRegSeqOperandD1()

static DecodeStatus DecodeRegSeqOperandD1	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 311 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createReg(), DecodesFPR64RegisterClass(), llvm::MCDisassembler::Fail, FPR64DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodeRegSeqOperandD2()

static DecodeStatus DecodeRegSeqOperandD2	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 345 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createReg(), DecodeFPR64RegisterClass(), llvm::MCDisassembler::Fail, FPR64DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodeRegSeqOperandF1()

static DecodeStatus DecodeRegSeqOperandF1	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 294 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createReg(), DecodesFPR32RegisterClass(), llvm::MCDisassembler::Fail, FPR32DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodeRegSeqOperandF2()

static DecodeStatus DecodeRegSeqOperandF2	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 328 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), Address, assert(), llvm::MCOperand::createReg(), DecodeFPR32RegisterClass(), llvm::MCDisassembler::Fail, FPR32DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodesFPR128RegisterClass()

static LLVM_ATTRIBUTE_UNUSED DecodeStatus DecodesFPR128RegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 171 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR128DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodesFPR32RegisterClass()

static DecodeStatus DecodesFPR32RegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 129 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR32DecoderTable, and llvm::MCDisassembler::Success.

Referenced by DecodeRegSeqOperandF1().

◆ DecodesFPR64_VRegisterClass()

static DecodeStatus DecodesFPR64_VRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 149 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR64DecoderTable, and llvm::MCDisassembler::Success.

◆ DecodesFPR64RegisterClass()

static DecodeStatus DecodesFPR64RegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 139 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, FPR64DecoderTable, and llvm::MCDisassembler::Success.

Referenced by DecodeRegSeqOperandD1().

◆ DecodesGPRRegisterClass()

static DecodeStatus DecodesGPRRegisterClass	(	MCInst &	Inst,
		uint64_t	RegNo,
		uint64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 181 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, and llvm::MCDisassembler::Success.

◆ decodeSImmOperand()

template<unsigned N, unsigned S>

static DecodeStatus decodeSImmOperand	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 370 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ decodeUImmOperand()

template<unsigned N, unsigned S>

static DecodeStatus decodeUImmOperand	(	MCInst &	Inst,
		uint64_t	Imm,
		int64_t	Address,
		const MCDisassembler *	Decoder
	)

static

Definition at line 228 of file CSKYDisassembler.cpp.

References llvm::MCInst::addOperand(), assert(), llvm::MCOperand::createImm(), and llvm::MCDisassembler::Success.

◆ LLVMInitializeCSKYDisassembler()

LLVM_EXTERNAL_VISIBILITY void LLVMInitializeCSKYDisassembler ( )

Definition at line 61 of file CSKYDisassembler.cpp.

References createCSKYDisassembler(), llvm::getTheCSKYTarget(), and llvm::TargetRegistry::RegisterMCDisassembler().

Variable Documentation

◆ FPR128DecoderTable

const uint16_t FPR128DecoderTable[]

static

Initial value:

= {
    CSKY::F0_128,  CSKY::F1_128,  CSKY::F2_128,  CSKY::F3_128,  CSKY::F4_128,
    CSKY::F5_128,  CSKY::F6_128,  CSKY::F7_128,  CSKY::F8_128,  CSKY::F9_128,
    CSKY::F10_128, CSKY::F11_128, CSKY::F12_128, CSKY::F13_128, CSKY::F14_128,
    CSKY::F15_128, CSKY::F16_128, CSKY::F17_128, CSKY::F18_128, CSKY::F19_128,
    CSKY::F20_128, CSKY::F21_128, CSKY::F22_128, CSKY::F23_128, CSKY::F24_128,
    CSKY::F25_128, CSKY::F26_128, CSKY::F27_128, CSKY::F28_128, CSKY::F29_128,
    CSKY::F30_128, CSKY::F31_128}

Definition at line 100 of file CSKYDisassembler.cpp.

Referenced by DecodesFPR128RegisterClass().

◆ FPR32DecoderTable

const uint16_t FPR32DecoderTable[]

static

Initial value:

= {
    CSKY::F0_32,  CSKY::F1_32,  CSKY::F2_32,  CSKY::F3_32,  CSKY::F4_32,
    CSKY::F5_32,  CSKY::F6_32,  CSKY::F7_32,  CSKY::F8_32,  CSKY::F9_32,
    CSKY::F10_32, CSKY::F11_32, CSKY::F12_32, CSKY::F13_32, CSKY::F14_32,
    CSKY::F15_32, CSKY::F16_32, CSKY::F17_32, CSKY::F18_32, CSKY::F19_32,
    CSKY::F20_32, CSKY::F21_32, CSKY::F22_32, CSKY::F23_32, CSKY::F24_32,
    CSKY::F25_32, CSKY::F26_32, CSKY::F27_32, CSKY::F28_32, CSKY::F29_32,
    CSKY::F30_32, CSKY::F31_32}

Definition at line 82 of file CSKYDisassembler.cpp.

Referenced by DecodeFPR32RegisterClass(), DecodeRegSeqOperandF1(), DecodeRegSeqOperandF2(), and DecodesFPR32RegisterClass().

◆ FPR64DecoderTable

const uint16_t FPR64DecoderTable[]

static

Initial value:

= {
    CSKY::F0_64,  CSKY::F1_64,  CSKY::F2_64,  CSKY::F3_64,  CSKY::F4_64,
    CSKY::F5_64,  CSKY::F6_64,  CSKY::F7_64,  CSKY::F8_64,  CSKY::F9_64,
    CSKY::F10_64, CSKY::F11_64, CSKY::F12_64, CSKY::F13_64, CSKY::F14_64,
    CSKY::F15_64, CSKY::F16_64, CSKY::F17_64, CSKY::F18_64, CSKY::F19_64,
    CSKY::F20_64, CSKY::F21_64, CSKY::F22_64, CSKY::F23_64, CSKY::F24_64,
    CSKY::F25_64, CSKY::F26_64, CSKY::F27_64, CSKY::F28_64, CSKY::F29_64,
    CSKY::F30_64, CSKY::F31_64}

Definition at line 91 of file CSKYDisassembler.cpp.

Referenced by DecodeFPR64RegisterClass(), DecodeRegSeqOperandD1(), DecodeRegSeqOperandD2(), DecodesFPR64_VRegisterClass(), and DecodesFPR64RegisterClass().

◆ GPRDecoderTable

const uint16_t GPRDecoderTable[]

static

Initial value:

= {
    CSKY::R0,  CSKY::R1,  CSKY::R2,  CSKY::R3,  CSKY::R4,  CSKY::R5,  CSKY::R6,
    CSKY::R7,  CSKY::R8,  CSKY::R9,  CSKY::R10, CSKY::R11, CSKY::R12, CSKY::R13,
    CSKY::R14, CSKY::R15, CSKY::R16, CSKY::R17, CSKY::R18, CSKY::R19, CSKY::R20,
    CSKY::R21, CSKY::R22, CSKY::R23, CSKY::R24, CSKY::R25, CSKY::R26, CSKY::R27,
    CSKY::R28, CSKY::R29, CSKY::R30, CSKY::R31}

Definition at line 66 of file CSKYDisassembler.cpp.

Referenced by DecodeGPRRegisterClass(), DecodeGPRSPRegisterClass(), DecodemGPRRegisterClass(), DecodeRegSeqOperand(), and DecodesGPRRegisterClass().

◆ GPRPairDecoderTable

const uint16_t GPRPairDecoderTable[]

static

Initial value:

= {
    CSKY::R0_R1,   CSKY::R1_R2,   CSKY::R2_R3,   CSKY::R3_R4,   CSKY::R4_R5,
    CSKY::R5_R6,   CSKY::R6_R7,   CSKY::R7_R8,   CSKY::R8_R9,   CSKY::R9_R10,
    CSKY::R10_R11, CSKY::R11_R12, CSKY::R12_R13, CSKY::R13_R14, CSKY::R14_R15,
    CSKY::R15_R16, CSKY::R16_R17, CSKY::R17_R18, CSKY::R18_R19, CSKY::R19_R20,
    CSKY::R20_R21, CSKY::R21_R22, CSKY::R22_R23, CSKY::R23_R24, CSKY::R24_R25,
    CSKY::R25_R26, CSKY::R26_R27, CSKY::R27_R28, CSKY::R28_R29, CSKY::R29_R30,
    CSKY::R30_R31, CSKY::R31_R32}

Definition at line 73 of file CSKYDisassembler.cpp.

Referenced by DecodeGPRPairRegisterClass().

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ DEBUG_TYPE

Typedef Documentation

◆ DecodeStatus

Function Documentation

◆ createCSKYDisassembler()

◆ DecodeFPR32RegisterClass()

◆ DecodeFPR64RegisterClass()

◆ decodeFPUV3Instruction()

◆ DecodeGPRPairRegisterClass()

◆ DecodeGPRRegisterClass()

◆ DecodeGPRSPRegisterClass()

◆ decodeImmShiftOpValue()

◆ decodeJMPIXImmOperand()

◆ decodeLRW16Imm8()

◆ DecodemGPRRegisterClass()

◆ decodeOImmOperand()

◆ DecodeRegSeqOperand()

◆ DecodeRegSeqOperandD1()

◆ DecodeRegSeqOperandD2()

◆ DecodeRegSeqOperandF1()

◆ DecodeRegSeqOperandF2()

◆ DecodesFPR128RegisterClass()

◆ DecodesFPR32RegisterClass()

◆ DecodesFPR64_VRegisterClass()

◆ DecodesFPR64RegisterClass()

◆ DecodesGPRRegisterClass()

◆ decodeSImmOperand()

◆ decodeUImmOperand()

◆ LLVMInitializeCSKYDisassembler()

Variable Documentation

◆ FPR128DecoderTable

◆ FPR32DecoderTable

◆ FPR64DecoderTable

◆ GPRDecoderTable

◆ GPRPairDecoderTable