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Validate jumps in jit slowmem mode.

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This makes it easier to see what is going on in the emulator debugger.
This commit is contained in:
Unknown W. Brackets 2013-02-09 23:11:26 -08:00
parent 71c85ccf33
commit eb84c2f00a
1 changed files with 25 additions and 1 deletions
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26
Core/MIPS/x86/Jit.cpp
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@ -288,7 +288,31 @@ void Jit::WriteExitDestInEAX()
// TODO: Some wasted potential, dispatcher will always read this back into EAX.
MOV(32, M(&mips_->pc), R(EAX));
WriteDowncount();
JMP(asm_.dispatcher, true);
// Validate the jump to avoid a crash?
if (!g_Config.bFastMemory)
{
CMP(32, R(EAX), Imm32(PSP_GetKernelMemoryBase()));
FixupBranch tooLow = J_CC(CC_L);
CMP(32, R(EAX), Imm32(PSP_GetUserMemoryEnd()));
FixupBranch tooHigh = J_CC(CC_GE);
JMP(asm_.dispatcher, true);
SetJumpTarget(tooLow);
SetJumpTarget(tooHigh);
ABI_CallFunctionA(thunks.ProtectFunction((void *) Memory::GetPointer, 1), R(EAX));
CMP(32, R(EAX), Imm32(0));
J_CC(CC_NE, asm_.dispatcher, true);
// TODO: "Ignore" this so other threads can continue?
if (g_Config.bIgnoreBadMemAccess)
MOV(32, M((void*)&coreState), Imm32(CORE_ERROR));
JMP(asm_.dispatcherCheckCoreState, true);
}
else
JMP(asm_.dispatcher, true);
}
void Jit::WriteSyscallExit()