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LLE JIT: Fixed the shift direction of the lsrnrx, asrnrx, lsrnr and asrnr instructions. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6653 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
skidau 2010-12-23 22:42:10 +00:00
parent ef96ab7d4f
commit b9d4534a35
1 changed files with 10 additions and 12 deletions
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22
Source/Core/DSPCore/Src/Jit/DSPJitArithmetic.cpp
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@ -132,8 +132,7 @@ void DSPEmitter::andf(const UDSPInstruction opc)
// g_dsp.r[DSP_REG_SR] |= SR_LOGIC_ZERO;
// else
// g_dsp.r[DSP_REG_SR] &= ~SR_LOGIC_ZERO;
AND(16, R(RAX), Imm16(imm));
CMP(16, R(RAX), Imm16(0));
TEST(16, R(RAX), Imm16(imm));
FixupBranch notLogicZero = J_CC(CC_NE);
OR(16, MDisp(R11, DSP_REG_SR * 2), Imm16(SR_LOGIC_ZERO));
FixupBranch exit = J();
@ -1500,7 +1499,7 @@ void DSPEmitter::lsrn(const UDSPInstruction opc)
get_long_acc(0, RDX);
// acc &= 0x000000FFFFFFFFFFULL;
SHL(64, R(RDX), Imm8(24));
SAR(64, R(RDX), Imm8(24));
SHR(64, R(RDX), Imm8(24));
// if ((accm & 0x3f) == 0)
// shift = 0;
@ -1647,10 +1646,10 @@ void DSPEmitter::lsrnrx(const UDSPInstruction opc)
FixupBranch shiftLeft = J_CC(CC_Z);
NEG(16, R(RCX));
ADD(16, R(RCX), Imm16(0x40));
SHL(64, R(RDX), R(RCX));
SAR(64, R(RDX), R(RCX));
FixupBranch exit = J();
SetJumpTarget(shiftLeft);
SAR(64, R(RDX), R(RCX));
SHL(64, R(RDX), R(RCX));
SetJumpTarget(noShift);
SetJumpTarget(exit);
@ -1708,10 +1707,10 @@ void DSPEmitter::asrnrx(const UDSPInstruction opc)
FixupBranch shiftLeft = J_CC(CC_Z);
NEG(16, R(RCX));
ADD(16, R(RCX), Imm16(0x40));
SHL(64, R(RDX), R(RCX));
SAR(64, R(RDX), R(RCX));
FixupBranch exit = J();
SetJumpTarget(shiftLeft);
SAR(64, R(RDX), R(RCX));
SHL(64, R(RDX), R(RCX));
SetJumpTarget(noShift);
SetJumpTarget(exit);
@ -1770,14 +1769,13 @@ void DSPEmitter::lsrnr(const UDSPInstruction opc)
FixupBranch shiftLeft = J_CC(CC_Z);
NEG(16, R(RCX));
ADD(16, R(RCX), Imm16(0x40));
SHL(64, R(RDX), R(RCX));
SAR(64, R(RDX), R(RCX));
FixupBranch exit = J();
SetJumpTarget(shiftLeft);
SAR(64, R(RDX), R(RCX));
SHL(64, R(RDX), R(RCX));
SetJumpTarget(noShift);
SetJumpTarget(exit);
// dsp_set_long_acc(dreg, (s64)acc);
set_long_acc(dreg, RDX);
SetJumpTarget(zero);
@ -1830,10 +1828,10 @@ void DSPEmitter::asrnr(const UDSPInstruction opc)
FixupBranch shiftLeft = J_CC(CC_Z);
NEG(16, R(RCX));
ADD(16, R(RCX), Imm16(0x40));
SHL(64, R(RDX), R(RCX));
SAR(64, R(RDX), R(RCX));
FixupBranch exit = J();
SetJumpTarget(shiftLeft);
SAR(64, R(RDX), R(RCX));
SHL(64, R(RDX), R(RCX));
SetJumpTarget(noShift);
SetJumpTarget(exit);