Packed DWORD to Unsigned WORD Intrinsic

The prototype for this Intel® Streaming SIMD Extensions (Intel® SSE4) intrinsic is in the smmintrin.h file.

To use this intrinsic, include the immintrin.h file as follows:

#include <immintrin.h>

_mm_packus_epi32

Converts eight packed signed doublewords into eight packed unsigned words, using unsigned saturation to handle overflow condition.

Corresponding instruction: PACKUSDW