- Add MASM assembler files for MSVC x64 projects to support vm_x86 in x64 mode

- Clean up ftol()/snapvector() mess
- Make use of SSE instructions for ftol()/snapvector() if available
- move ftol/snapvector pure assembler to inline assembler, this will add x86_64 and improve support for different calling conventions
- Set FPU control word at program startup to get consistent behaviour on all platforms

code/renderer/tr_local.h

@@ -34,14 +34,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #define GL_INDEX_TYPE		GL_UNSIGNED_INT
 typedef unsigned int glIndex_t;
 
-// fast float to int conversion
-#if id386 && !defined(__GNUC__)
-long myftol( float f );
-#else
-#define	myftol(x) ((int)(x))
-#endif
-
-
 // everything that is needed by the backend needs
 // to be double buffered to allow it to run in
 // parallel on a dual cpu machine