XCoreDisassembler.cpp revision 35150cbf4166ae8d69032d355f1e8d83b4a6eb3c
1881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne//===- XCoreDisassembler.cpp - Disassembler for XCore -----------*- C++ -*-===// 2881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// 3881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// The LLVM Compiler Infrastructure 4881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// 5881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// This file is distributed under the University of Illinois Open Source 6881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// License. See LICENSE.TXT for details. 7881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne// 8881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne//===----------------------------------------------------------------------===// 9b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne/// 10b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne/// \file 11b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne/// \brief This file is part of the XCore Disassembler. 12b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne/// 13881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne//===----------------------------------------------------------------------===// 14881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 1554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne#include "XCore.h" 1654d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne#include "XCoreRegisterInfo.h" 17881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne#include "llvm/MC/MCDisassembler.h" 18881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne#include "llvm/MC/MCFixedLenDisassembler.h" 1954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne#include "llvm/MC/MCInst.h" 20881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne#include "llvm/MC/MCSubtargetInfo.h" 21881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne#include "llvm/Support/MemoryObject.h" 22881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne#include "llvm/Support/TargetRegistry.h" 23881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 24881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborneusing namespace llvm; 25881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 26881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osbornetypedef MCDisassembler::DecodeStatus DecodeStatus; 27881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 28881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osbornenamespace { 29881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 30b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne/// \brief A disassembler class for XCore. 31881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborneclass XCoreDisassembler : public MCDisassembler { 3254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne const MCRegisterInfo *RegInfo; 33881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osbornepublic: 3454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne XCoreDisassembler(const MCSubtargetInfo &STI, const MCRegisterInfo *Info) : 3554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne MCDisassembler(STI), RegInfo(Info) {} 36881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 37b4d40a04f0639fdec8329a8708565411fa53b5bcRichard Osborne /// \brief See MCDisassembler. 38881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne virtual DecodeStatus getInstruction(MCInst &instr, 39881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne uint64_t &size, 40881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne const MemoryObject ®ion, 41881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne uint64_t address, 42881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne raw_ostream &vStream, 43881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne raw_ostream &cStream) const; 4454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 4554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne const MCRegisterInfo *getRegInfo() const { return RegInfo; } 46881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne}; 4754d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne} 48881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 4954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osbornestatic bool readInstruction16(const MemoryObject ®ion, 5054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint64_t address, 5154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint64_t &size, 5254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint16_t &insn) { 5354d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint8_t Bytes[4]; 5454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 5554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne // We want to read exactly 2 Bytes of data. 5654d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne if (region.readBytes(address, 2, Bytes, NULL) == -1) { 5754d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne size = 0; 5854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return false; 5954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne } 6054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne // Encoded as a little-endian 16-bit word in the stream. 6154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne insn = (Bytes[0] << 0) | (Bytes[1] << 8); 6254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return true; 6354d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne} 6454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 6554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osbornestatic unsigned getReg(const void *D, unsigned RC, unsigned RegNo) { 6654d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne const XCoreDisassembler *Dis = static_cast<const XCoreDisassembler*>(D); 6754d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return *(Dis->getRegInfo()->getRegClass(RC).begin() + RegNo); 6854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne} 6954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 7054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osbornestatic DecodeStatus DecodeGRRegsRegisterClass(MCInst &Inst, 7154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne unsigned RegNo, 7254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint64_t Address, 7354d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne const void *Decoder); 7454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 7535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus DecodeBitpOperand(MCInst &Inst, unsigned Val, 7635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne uint64_t Address, const void *Decoder); 7735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 781ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus Decode2RInstruction(MCInst &Inst, 791ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned RegNo, 801ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne uint64_t Address, 811ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder); 821ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 831ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus DecodeR2RInstruction(MCInst &Inst, 841ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned RegNo, 851ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne uint64_t Address, 861ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder); 871ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 881ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus Decode2RSrcDstInstruction(MCInst &Inst, 891ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned RegNo, 901ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne uint64_t Address, 911ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder); 921ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 9335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus DecodeRUSInstruction(MCInst &Inst, 9435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Insn, 9535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne uint64_t Address, 9635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder); 9735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 9835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus DecodeRUSBitpInstruction(MCInst &Inst, 9935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Insn, 10035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne uint64_t Address, 10135150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder); 10235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 10335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus DecodeRUSSrcDstBitpInstruction(MCInst &Inst, 10435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Insn, 10535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne uint64_t Address, 10635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder); 10735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 10854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne#include "XCoreGenDisassemblerTables.inc" 10954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 11054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osbornestatic DecodeStatus DecodeGRRegsRegisterClass(MCInst &Inst, 11154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne unsigned RegNo, 11254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint64_t Address, 11354d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne const void *Decoder) 11454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne{ 11554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne if (RegNo > 11) 11654d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return MCDisassembler::Fail; 11754d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne unsigned Reg = getReg(Decoder, XCore::GRRegsRegClassID, RegNo); 11854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne Inst.addOperand(MCOperand::CreateReg(Reg)); 11954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return MCDisassembler::Success; 120881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne} 121881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 12235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus DecodeBitpOperand(MCInst &Inst, unsigned Val, 12335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne uint64_t Address, const void *Decoder) { 12435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne if (Val > 11) 12535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne return MCDisassembler::Fail; 12635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne static unsigned Values[] = { 12735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 32 /*bpw*/, 1, 2, 3, 4, 5, 6, 7, 8, 16, 24, 32 12835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne }; 12935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne Inst.addOperand(MCOperand::CreateImm(Values[Val])); 13035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne return MCDisassembler::Success; 13135150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne} 13235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 1331ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus 1341ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard OsborneDecode2OpInstruction(unsigned Insn, unsigned &Op1, unsigned &Op2) { 1351ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Combined = fieldFromInstruction(Insn, 6, 5) + 1361ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne fieldFromInstruction(Insn, 5, 1) * 5 - 27; 1371ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne if (Combined >= 9) 1381ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne return MCDisassembler::Fail; 1391ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 1401ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Op1High = Combined % 3; 1411ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Op2High = Combined / 3; 1421ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne Op1 = (Op1High << 2) | fieldFromInstruction(Insn, 2, 2); 1431ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne Op2 = (Op2High << 2) | fieldFromInstruction(Insn, 0, 2); 1441ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne return MCDisassembler::Success; 1451ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne} 1461ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 1471ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus 1481ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard OsborneDecode2RInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 1491ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder) { 1501ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Op1, Op2; 1511ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op1, Op2); 1521ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne if (S == MCDisassembler::Success) { 1531ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 1541ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op2, Address, Decoder); 1551ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne } 1561ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne return S; 1571ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne} 1581ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 1591ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus 1601ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard OsborneDecodeR2RInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 1611ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder) { 1621ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Op1, Op2; 1631ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op2, Op1); 1641ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne if (S == MCDisassembler::Success) { 1651ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 1661ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op2, Address, Decoder); 1671ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne } 1681ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne return S; 1691ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne} 1701ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 1711ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osbornestatic DecodeStatus 1721ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard OsborneDecode2RSrcDstInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 1731ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne const void *Decoder) { 1741ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne unsigned Op1, Op2; 1751ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op1, Op2); 1761ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne if (S == MCDisassembler::Success) { 1771ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 1781ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 1791ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne DecodeGRRegsRegisterClass(Inst, Op2, Address, Decoder); 1801ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne } 1811ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne return S; 1821ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne} 1831ffe48a84b398e8cebbdc7a47bedb57e1e67e63fRichard Osborne 18435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus 18535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard OsborneDecodeRUSInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 18635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder) { 18735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Op1, Op2; 18835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op1, Op2); 18935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne if (S == MCDisassembler::Success) { 19035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 19135150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne Inst.addOperand(MCOperand::CreateImm(Op2)); 19235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne } 19335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne return S; 19435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne} 19535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 19635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus 19735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard OsborneDecodeRUSBitpInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 19835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder) { 19935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Op1, Op2; 20035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op1, Op2); 20135150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne if (S == MCDisassembler::Success) { 20235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 20335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeBitpOperand(Inst, Op2, Address, Decoder); 20435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne } 20535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne return S; 20635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne} 20735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 20835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osbornestatic DecodeStatus 20935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard OsborneDecodeRUSSrcDstBitpInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, 21035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne const void *Decoder) { 21135150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne unsigned Op1, Op2; 21235150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeStatus S = Decode2OpInstruction(Insn, Op1, Op2); 21335150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne if (S == MCDisassembler::Success) { 21435150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 21535150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); 21635150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne DecodeBitpOperand(Inst, Op2, Address, Decoder); 21735150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne } 21835150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne return S; 21935150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne} 22035150cbf4166ae8d69032d355f1e8d83b4a6eb3cRichard Osborne 221881e3cca66c64a57ff431a4f6d1136dd6017c137Richard OsborneMCDisassembler::DecodeStatus 222881e3cca66c64a57ff431a4f6d1136dd6017c137Richard OsborneXCoreDisassembler::getInstruction(MCInst &instr, 223881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne uint64_t &Size, 224881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne const MemoryObject &Region, 225881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne uint64_t Address, 226881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne raw_ostream &vStream, 227881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne raw_ostream &cStream) const { 22854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne uint16_t low; 22954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 23054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne if (!readInstruction16(Region, Address, Size, low)) { 23154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return Fail; 23254d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne } 23354d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 23454d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne // Calling the auto-generated decoder function. 23554d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne DecodeStatus Result = decodeInstruction(DecoderTable16, instr, low, Address, 23654d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne this, STI); 23754d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne if (Result != Fail) { 23854d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne Size = 2; 23954d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return Result; 24054d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne } 24154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne 242881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne return Fail; 243881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne} 244881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 245881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osbornenamespace llvm { 246881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne extern Target TheXCoreTarget; 247881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne} 248881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 249881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osbornestatic MCDisassembler *createXCoreDisassembler(const Target &T, 250881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne const MCSubtargetInfo &STI) { 25154d6266e9baa8c2796c4a95c35897b5c67d8d910Richard Osborne return new XCoreDisassembler(STI, T.createMCRegInfo("")); 252881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne} 253881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne 254881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborneextern "C" void LLVMInitializeXCoreDisassembler() { 255881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne // Register the disassembler. 256881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne TargetRegistry::RegisterMCDisassembler(TheXCoreTarget, 257881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne createXCoreDisassembler); 258881e3cca66c64a57ff431a4f6d1136dd6017c137Richard Osborne} 259