From b6aed508e310e31dcb080e761ca856127cec0773 Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Fri, 9 Sep 2011 18:37:27 +0000 Subject: Thumb2 assembly parsing and encoding for LDREX/LDREXB/LDREXD/LDREXH. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139381 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp') diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 2791350b73..8a081f368e 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -269,6 +269,8 @@ static DecodeStatus DecodeT2Imm8S4(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2AddrModeImm8s4(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeT2AddrModeImm0_1020s4(llvm::MCInst &Inst,unsigned Val, + uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2Imm8(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2AddrModeImm8(llvm::MCInst &Inst, unsigned Val, @@ -2669,6 +2671,21 @@ static DecodeStatus DecodeT2AddrModeImm8s4(llvm::MCInst &Inst, unsigned Val, return S; } +static DecodeStatus DecodeT2AddrModeImm0_1020s4(llvm::MCInst &Inst,unsigned Val, + uint64_t Address, const void *Decoder) { + DecodeStatus S = MCDisassembler::Success; + + unsigned Rn = fieldFromInstruction32(Val, 8, 4); + unsigned imm = fieldFromInstruction32(Val, 0, 8); + + if (!Check(S, DecodeGPRnopcRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + + Inst.addOperand(MCOperand::CreateImm(imm)); + + return S; +} + static DecodeStatus DecodeT2Imm8(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { int imm = Val & 0xFF; -- cgit v1.2.3-18-g5258