diff options
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index da5b6b86aa..9d4449a4aa 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -301,6 +301,9 @@ static DecodeStatus DecodeT2STRDPreInstruction(llvm::MCInst &Inst,unsigned Insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2Adr(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeT2LdStPre(llvm::MCInst &Inst, unsigned Val, + uint64_t Address, const void *Decoder); + #include "ARMGenDisassemblerTables.inc" #include "ARMGenInstrInfo.inc" @@ -2755,6 +2758,35 @@ static DecodeStatus DecodeT2AddrModeImm8(llvm::MCInst &Inst, unsigned Val, return S; } +static DecodeStatus DecodeT2LdStPre(llvm::MCInst &Inst, unsigned Insn, + uint64_t Address, const void *Decoder) { + DecodeStatus S = MCDisassembler::Success; + + unsigned Rt = fieldFromInstruction32(Insn, 12, 4); + unsigned Rn = fieldFromInstruction32(Insn, 16, 4); + unsigned addr = fieldFromInstruction32(Insn, 0, 8); + addr |= fieldFromInstruction32(Insn, 9, 1) << 8; + addr |= Rn << 9; + unsigned load = fieldFromInstruction32(Insn, 20, 1); + + if (!load) { + if (!Check(S, DecodeGPRRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + } + + if (!Check(S, DecodeGPRRegisterClass(Inst, Rt, Address, Decoder))) + return MCDisassembler::Fail; + + if (load) { + if (!Check(S, DecodeGPRRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + } + + if (!Check(S, DecodeT2AddrModeImm8(Inst, addr, Address, Decoder))) + return MCDisassembler::Fail; + + return S; +} static DecodeStatus DecodeT2AddrModeImm12(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { |