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Jit: Some mcrxr optimizations

This commit is contained in:
JosJuice 2023-08-19 21:13:56 +02:00
parent 5ea1cc5406
commit c70dcf99dd
2 changed files with 5 additions and 5 deletions
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4
Source/Core/Core/PowerPC/Jit64/Jit_SystemRegisters.cpp
View File

@ -588,8 +588,8 @@ void Jit64::mcrxr(UGeckoInstruction inst)
MOV(64, CROffset(inst.CRFD), R(RSCRATCH));
// Clear XER[0-3]
MOV(8, PPCSTATE(xer_ca), Imm8(0));
MOV(8, PPCSTATE(xer_so_ov), Imm8(0));
static_assert(PPCSTATE_OFF(xer_ca) + 1 == PPCSTATE_OFF(xer_so_ov));
MOV(16, PPCSTATE(xer_ca), Imm8(0));
}
void Jit64::crXXX(UGeckoInstruction inst)

6
Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
View File

@ -143,7 +143,7 @@ void JitArm64::mcrxr(UGeckoInstruction inst)
LDRB(IndexType::Unsigned, WB, PPC_REG, PPCSTATE_OFF(xer_so_ov));
// [0 SO OV CA]
ADD(WA, WA, WB, ArithOption(WB, ShiftType::LSL, 1));
BFI(WA, WB, 1, 2);
// [SO OV CA 0] << 3
LSL(WA, WA, 4);
@ -151,8 +151,8 @@ void JitArm64::mcrxr(UGeckoInstruction inst)
LDR(XB, XB, XA);
// Clear XER[0-3]
STRB(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_ca));
STRB(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_so_ov));
static_assert(PPCSTATE_OFF(xer_ca) + 1 == PPCSTATE_OFF(xer_so_ov));
STRH(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_ca));
gpr.Unlock(WA);
}