More CP/GPFifo work. Fix Super Monkey Ball SC/DC. SMB force us to hack CP differently: CPU really thinks the fifo is always empty and on idle now.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1242 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoOGL/Src/OpcodeDecoding.cpp

@@ -310,6 +310,8 @@ void OpcodeDecoder_Run()
     DVSTARTPROFILE();
     while (FifoCommandRunnable())
     {
+		//TODO?: if really needed, do something like this: "InterlockedExchange((LONG*)&_fifo.CPCmdIdle, 0);"
         Decode();
     }
+	//TODO?: if really needed, do something like this: "InterlockedExchange((LONG*)&_fifo.CPCmdIdle, 1);"
 }