- 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/client/cl_cgame.c

@@ -660,7 +660,7 @@ intptr_t CL_CgameSystemCalls( intptr_t *args ) {
 	case CG_REAL_TIME:
 		return Com_RealTime( VMA(1) );
 	case CG_SNAPVECTOR:
-		Sys_SnapVector( VMA(1) );
+		Q_SnapVector(VMA(1));
 		return 0;
 
 	case CG_CIN_PLAYCINEMATIC:

code/client/snd_wavelet.c

@@ -22,8 +22,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "snd_local.h"
 
-long myftol( float f );
-
 #define C0 0.4829629131445341
 #define C1 0.8365163037378079
 #define C2 0.2241438680420134