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[AArch64] Implement BFI & UBFIZ in the emitter.

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Also fixes a bug in the UBFX instruction emitter. Naughty Naughty PPSSPP, not testing emitter functions you add.
This commit is contained in:
Ryan Houdek
2015-06-29 19:00:22 -05:00
parent 12fe42b2a3
commit afc3d30f5c
2 changed files with 18 additions and 1 deletions
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4
Source/Core/Common/Arm64Emitter.h
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@ -578,6 +578,8 @@ public:
void BFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
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 UBFIZ(ARM64Reg Rd, ARM64Reg Rn, u32 lsb, u32 width);
// Extract register (ROR with two inputs, if same then faster on A67)
void EXTR(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, u32 shift);
@ -591,7 +593,7 @@ public:
void UBFX(ARM64Reg Rd, ARM64Reg Rn, int lsb, int width)
{
UBFM(Rd, Rn, lsb, lsb + width <= (Is64Bit(Rn) ? 64 : 32));
UBFM(Rd, Rn, lsb, lsb + width - 1);
}
// Load Register (Literal)