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Merge pull request #9008 from Sintendo/dspjitlea

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DSPJit: Various minor improvements
This commit is contained in:
Tilka
2020-08-08 19:08:24 +01:00
committed by GitHub
parent 3201944208 363f3f82bb
commit 340c08a88d
3 changed files with 7 additions and 15 deletions
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6
Source/Core/Core/DSP/Jit/x64/DSPJitBranch.cpp
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@ -38,7 +38,7 @@ void DSPEmitter::ReJitConditional(const UDSPInstruction opc,
case 0x3: // LE - Less Equal case 0x3: // LE - Less Equal
LEA(16, EDX, MScaled(EAX, SCALE_4, 0)); LEA(16, EDX, MScaled(EAX, SCALE_4, 0));
XOR(16, R(EAX), R(EDX)); XOR(16, R(EAX), R(EDX));
LEA(16, EAX, MScaled(EAX, SCALE_2, 0)); ADD(16, R(EAX), R(EAX));
OR(16, R(EAX), R(EDX)); OR(16, R(EAX), R(EDX));
TEST(16, R(EAX), Imm16(0x10)); TEST(16, R(EAX), Imm16(0x10));
break; break;
@ -56,9 +56,9 @@ void DSPEmitter::ReJitConditional(const UDSPInstruction opc,
break; break;
case 0xa: // ? case 0xa: // ?
case 0xb: // ? case 0xb: // ?
LEA(16, EDX, MScaled(EAX, SCALE_2, 0)); LEA(16, EDX, MRegSum(EAX, EAX));
OR(16, R(EAX), R(EDX)); OR(16, R(EAX), R(EDX));
LEA(16, EDX, MScaled(EDX, SCALE_8, 0)); SHL(16, R(EDX), Imm8(3));
NOT(16, R(EAX)); NOT(16, R(EAX));
OR(16, R(EAX), R(EDX)); OR(16, R(EAX), R(EDX));
TEST(16, R(EAX), Imm16(0x20)); TEST(16, R(EAX), Imm16(0x20));

7
Source/Core/Core/DSP/Jit/x64/DSPJitMultiplier.cpp
View File

@ -30,7 +30,7 @@ void DSPEmitter::multiply()
TEST(16, sr_reg, Imm16(SR_MUL_MODIFY)); TEST(16, sr_reg, Imm16(SR_MUL_MODIFY));
FixupBranch noMult2 = J_CC(CC_NZ); FixupBranch noMult2 = J_CC(CC_NZ);
// prod <<= 1; // prod <<= 1;
LEA(64, RAX, MRegSum(RAX, RAX)); ADD(64, R(RAX), R(RAX));
SetJumpTarget(noMult2); SetJumpTarget(noMult2);
m_gpr.PutReg(DSP_REG_SR, false); m_gpr.PutReg(DSP_REG_SR, false);
// return prod; // return prod;
@ -130,7 +130,7 @@ void DSPEmitter::multiply_mulx(u8 axh0, u8 axh1)
TEST(16, sr_reg, Imm16(SR_MUL_MODIFY)); TEST(16, sr_reg, Imm16(SR_MUL_MODIFY));
FixupBranch noMult2 = J_CC(CC_NZ); FixupBranch noMult2 = J_CC(CC_NZ);
// prod <<= 1; // prod <<= 1;
LEA(64, RAX, MRegSum(RAX, RAX)); ADD(64, R(RAX), R(RAX));
SetJumpTarget(noMult2); SetJumpTarget(noMult2);
m_gpr.PutReg(DSP_REG_SR, false); m_gpr.PutReg(DSP_REG_SR, false);
// return prod; // return prod;
@ -252,8 +252,7 @@ void DSPEmitter::addpaxz(const UDSPInstruction opc)
get_long_acx(sreg, tmp1); get_long_acx(sreg, tmp1);
MOV(64, R(RDX), R(tmp1)); MOV(64, R(RDX), R(tmp1));
// s64 res = prod + (ax & ~0xffff); // s64 res = prod + (ax & ~0xffff);
MOV(64, R(RAX), Imm64(~0xffff)); AND(64, R(RDX), Imm32(~0xffff));
AND(64, R(RDX), R(RAX));
// s64 prod = dsp_get_long_prod_round_prodl(); // s64 prod = dsp_get_long_prod_round_prodl();
get_long_prod_round_prodl(); get_long_prod_round_prodl();
ADD(64, R(RAX), R(RDX)); ADD(64, R(RAX), R(RDX));

9
Source/Core/Core/DSP/Jit/x64/DSPJitRegCache.cpp
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@ -835,14 +835,7 @@ void DSPJitRegCache::WriteReg(int dreg, OpArg arg)
m_emitter.MOV(32, reg, Imm32(arg.Imm32())); m_emitter.MOV(32, reg, Imm32(arg.Imm32()));
break; break;
case 8: case 8:
if ((u32)arg.Imm64() == arg.Imm64()) m_emitter.MOV(64, reg, Imm64(arg.Imm64()));
{
m_emitter.MOV(64, reg, Imm32((u32)arg.Imm64()));
}
else
{
m_emitter.MOV(64, reg, Imm64(arg.Imm64()));
}
break; break;
default: default:
ASSERT_MSG(DSPLLE, 0, "unsupported memory size"); ASSERT_MSG(DSPLLE, 0, "unsupported memory size");