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Fifo: only touch the SIMD state once in the single core loop

This commit is contained in:
degasus 2015-03-14 08:02:16 +01:00
parent d2c62b1744
commit b1ffd32f5f
1 changed files with 12 additions and 3 deletions
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11
Source/Core/VideoCommon/Fifo.cpp
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@ -425,6 +425,7 @@ void RunGpu()
// execute GPU
if (!SConfig::GetInstance().m_LocalCoreStartupParameter.bCPUThread || g_use_deterministic_gpu_thread)
{
bool reset_simd_state = false;
while (fifo.bFF_GPReadEnable && fifo.CPReadWriteDistance && !AtBreakpoint() )
{
if (g_use_deterministic_gpu_thread)
@ -432,12 +433,15 @@ void RunGpu()
ReadDataFromFifoOnCPU(fifo.CPReadPointer);
}
else
{
if (!reset_simd_state)
{
FPURoundMode::SaveSIMDState();
FPURoundMode::LoadDefaultSIMDState();
reset_simd_state = true;
}
ReadDataFromFifo(fifo.CPReadPointer);
s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, s_video_buffer_write_ptr), nullptr, false);
FPURoundMode::LoadSIMDState();
}
//DEBUG_LOG(COMMANDPROCESSOR, "Fifo wraps to base");
@ -450,6 +454,11 @@ void RunGpu()
fifo.CPReadWriteDistance -= 32;
}
CommandProcessor::SetCPStatusFromGPU();
if (reset_simd_state)
{
FPURoundMode::LoadSIMDState();
}
}
// wake up GPU thread