Because commenting out this behavior fixes Silent Hill Shattered Memories.
If this commit breaks any game, please report.
PS: There is a EnterCriticalSection in fifo.cpp, which performs the Read Access, but there is no EnterCriticalSection in CommandProcessor.cpp which performs the Write Access, so how can we guarantee the Write Access is atomic?
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4694 8ced0084-cf51-0410-be5f-012b33b47a6e
ayuanx