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Arm64Emitter: Add BFXIL

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This commit is contained in:
MerryMage 2020-12-27 20:47:53 +00:00
parent b22073ef59
commit be6aec9932
2 changed files with 9 additions and 0 deletions
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8
Source/Core/Common/Arm64Emitter.cpp
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@ -1663,6 +1663,14 @@ void ARM64XEmitter::BFI(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width)
lsb, width);
EncodeBitfieldMOVInst(1, Rd, Rn, (size - lsb) % size, width - 1);
}
void ARM64XEmitter::BFXIL(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width)
{
u32 size = Is64Bit(Rn) ? 64 : 32;
ASSERT_MSG(DYNA_REC, lsb < size && width >= 1 && width <= size - lsb,
"%s passed lsb %d and width %d which is greater than the register size!", __func__,
lsb, width);
EncodeBitfieldMOVInst(1, Rd, Rn, lsb, lsb + width - 1);
}
void ARM64XEmitter::UBFIZ(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width)
{
u32 size = Is64Bit(Rn) ? 64 : 32;

1
Source/Core/Common/Arm64Emitter.h
View File

@ -770,6 +770,7 @@ public:
void SBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void UBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void BFI(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width);
void BFXIL(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width);
void UBFIZ(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width);
// Extract register (ROR with two inputs, if same then faster on A67)