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x86jit: Fix some flags/EAX trashing in rounding.

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Fixes #6810.
This commit is contained in:
Unknown W. Brackets 2014-08-30 16:46:43 -07:00
parent 8daff0a25e
commit e8cdbcc33f
1 changed files with 6 additions and 3 deletions
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9
Core/MIPS/x86/Jit.cpp
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@ -487,8 +487,8 @@ bool Jit::ReplaceJalTo(u32 dest) {
MOV(32, M(&mips_->pc), Imm32(js.compilerPC));
ClearRoundingMode();
ABI_CallFunction(entry->replaceFunc);
SetRoundingMode();
SUB(32, M(&currentMIPS->downcount), R(EAX));
SetRoundingMode();
}
js.compilerPC += 4;
@ -539,14 +539,16 @@ void Jit::Comp_ReplacementFunc(MIPSOpcode op)
MOV(32, M(&mips_->pc), Imm32(js.compilerPC));
ClearRoundingMode();
ABI_CallFunction(entry->replaceFunc);
SetRoundingMode();
if (entry->flags & (REPFLAG_HOOKENTER | REPFLAG_HOOKEXIT)) {
// Compile the original instruction at this address. We ignore cycles for hooks.
SetRoundingMode();
MIPSCompileOp(Memory::Read_Instruction(js.compilerPC, true));
} else {
MOV(32, R(ECX), M(&currentMIPS->r[MIPS_REG_RA]));
SUB(32, M(&currentMIPS->downcount), R(EAX));
SetRoundingMode();
SUB(32, M(&currentMIPS->downcount), Imm8(0));
WriteExitDestInReg(ECX);
js.compiling = false;
}
@ -694,17 +696,18 @@ bool Jit::CheckJitBreakpoint(u32 addr, int downcountOffset)
MOV(32, M(&mips_->pc), Imm32(js.compilerPC));
ClearRoundingMode();
ABI_CallFunction(&JitBreakpoint);
SetRoundingMode();
// If 0, the conditional breakpoint wasn't taken.
CMP(32, R(EAX), Imm32(0));
FixupBranch skip = J_CC(CC_Z);
WriteDowncount(downcountOffset);
// Just to fix the stack.
SetRoundingMode();
LOAD_FLAGS;
JMP(asm_.dispatcherCheckCoreState, true);
SetJumpTarget(skip);
SetRoundingMode();
LOAD_FLAGS;
return true;