CPU Affinity handle fixes broke the dashboard again

This only worked because ALL threads were still running on the same core.
Now they correctly run on different cores, the floating point register needs to be set for each thread!

src/CxbxKrnl/EmuD3D8.cpp

@@ -727,6 +727,8 @@ static DWORD WINAPI EmuUpdateTickCount(LPVOID)
 // thread dedicated to create devices
 static DWORD WINAPI EmuCreateDeviceProxy(LPVOID)
 {
+	_controlfp(_PC_53, _MCW_PC); // Set Precision control to 53 bits (verified setting)
+	_controlfp(_RC_NEAR, _MCW_RC); // Set Rounding control to near (unsure about this)
     DbgPrintf("EmuD3D8 (0x%X): CreateDevice proxy thread is running.\n", GetCurrentThreadId());
 
     while(true)

src/CxbxKrnl/EmuKrnlPs.cpp

@@ -119,6 +119,9 @@ static unsigned int WINAPI PCSTProxy
 
 	EmuGenerateFS(CxbxKrnl_TLS, CxbxKrnl_TLSData);
 
+	_controlfp(_PC_53, _MCW_PC); // Set Precision control to 53 bits (verified setting)
+	_controlfp(_RC_NEAR, _MCW_RC); // Set Rounding control to near (unsure about this)
+
 	// call thread notification routine(s)
 	if (g_iThreadNotificationCount != 0)
 	{