hl2sdk/public/tier1/processor_detect.h

//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: functions to expose CPU capabilities
//
// $NoKeywords: $
//=============================================================================//

bool CheckMMXTechnology(void);
bool CheckSSETechnology(void);
bool CheckSSE2Technology(void);
bool Check3DNowTechnology(void);