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Improved the CheckException for the GatherPipe writes in JIT, now only the External Exceptions are processed. 

We Didn't Check 0x0008000 in PowerPC::ppcState.msr this was killing the performance, this also fix a hang when this check is performed.
SMG for example.
Deleted the HiWatermark condition from GPFifo.
Please test games affected in this  Revision 9e649ce798, and games affected in this Revision b0f75f17ae.
I do not want to excite the game players of 'The Las Story', but Could test again the random hangs with this rev?

Thanks
This commit is contained in:
marcosvitali 2012-03-13 01:44:10 -03:00
parent fedf6055ce
commit 352ab2ba43
2 changed files with 10 additions and 3 deletions
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2
Source/Core/Core/Src/HW/GPFifo.cpp
View File

@ -99,7 +99,7 @@ void STACKALIGN CheckGatherPipe()
// Profile where the FIFO writes are occurring.
if (g_video_backend->Video_IsHiWatermarkActive() && jit && (jit->js.fifoWriteAddresses.find(PC)) == (jit->js.fifoWriteAddresses.end()))
if (jit && (jit->js.fifoWriteAddresses.find(PC)) == (jit->js.fifoWriteAddresses.end()))
{
jit->js.fifoWriteAddresses.insert(PC);

9
Source/Core/Core/Src/PowerPC/Jit64/Jit.cpp
View File

@ -576,14 +576,21 @@ const u8* Jit64::DoJit(u32 em_address, PPCAnalyst::CodeBuffer *code_buf, JitBloc
gpr.Flush(FLUSH_ALL);
fpr.Flush(FLUSH_ALL);
TEST(32, M((void *)&PowerPC::ppcState.Exceptions), Imm32(EXCEPTION_ISI | EXCEPTION_PROGRAM | EXCEPTION_SYSCALL | EXCEPTION_FPU_UNAVAILABLE | EXCEPTION_DSI | EXCEPTION_ALIGNMENT | EXCEPTION_DECREMENTER));
FixupBranch clearInt = J_CC(CC_NZ);
TEST(32, M((void *)&PowerPC::ppcState.Exceptions), Imm32(EXCEPTION_EXTERNAL_INT));
FixupBranch noExtException = J_CC(CC_Z);
TEST(32, M((void *)&ProcessorInterface::m_InterruptCause), Imm32(ProcessorInterface::INT_CAUSE_CP));
TEST(32, M((void *)&PowerPC::ppcState.msr), Imm32(0x0008000));
FixupBranch noCPInt = J_CC(CC_Z);
TEST(32, M((void *)&ProcessorInterface::m_InterruptCause), Imm32(ProcessorInterface::INT_CAUSE_CP));
FixupBranch noCPInt2 = J_CC(CC_Z);
MOV(32, M(&PC), Imm32(ops[i].address));
WriteExceptionExit();
SetJumpTarget(clearInt);
SetJumpTarget(noCPInt2);
SetJumpTarget(noCPInt);
SetJumpTarget(noExtException);
}