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x86jit: Set HI/LO properly on divide by zero.

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This commit is contained in:
Unknown W. Brackets 2016-05-18 23:11:07 -07:00
parent b5b94f4a4d
commit 5105e1947f
1 changed files with 8 additions and 1 deletions
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9
Core/MIPS/x86/CompALU.cpp
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@ -1027,10 +1027,13 @@ namespace MIPSComp
FixupBranch skip = J();
SetJumpTarget(divZero);
// TODO: This isn't exactly right.
MOV(32, gpr.R(MIPS_REG_HI), R(EAX));
MOV(32, gpr.R(MIPS_REG_LO), Imm32(-1));
CMP(32, R(EAX), Imm32(0));
FixupBranch positiveDivZero = J_CC(CC_GE);
MOV(32, gpr.R(MIPS_REG_LO), Imm32(1));
SetJumpTarget(positiveDivZero);
SetJumpTarget(skip);
SetJumpTarget(skip2);
gpr.UnlockAllX();
@ -1058,7 +1061,11 @@ namespace MIPSComp
SetJumpTarget(divZero);
MOV(32, gpr.R(MIPS_REG_HI), R(EAX));
MOV(32, gpr.R(MIPS_REG_LO), Imm32(-1));
CMP(32, R(EAX), Imm32(0xFFFF));
FixupBranch moreThan16Bit = J_CC(CC_A);
MOV(32, gpr.R(MIPS_REG_LO), Imm32(0xFFFF));
SetJumpTarget(moreThan16Bit);
SetJumpTarget(skip);
gpr.UnlockAllX();
}