Visible to Intel only — GUID: GUID-BF84D909-7493-42B4-8004-61A01A7F36B8
Visible to Intel only — GUID: GUID-BF84D909-7493-42B4-8004-61A01A7F36B8
Shuffle Intrinsics
These Supplemental Streaming SIMD Extensions 3 (SSSE3) intrinsics are used to perform shuffle operations. The prototypes for these intrinsics are in tmmintrin.h.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
_mm_shuffle_epi8
extern __m128i _mm_shuffle_epi8(__m128i a, __m128i b);
Shuffle bytes from a according to contents of b.
Interpreting a, b, and r as arrays of unsigned 8-bit integers:
for (i = 0; i < 16; i++){ if (b[i] & 0x80){ r[i] = 0; } else { r[i] = a[b[i] & 0x0F]; } }
_mm_shuffle_pi8
extern __m64 _mm_shuffle_pi8(__m64 a, __m64 b);
Shuffle bytes from a according to contents of b.
Interpreting a, b, and r as arrays of unsigned 8-bit integers:
for (i = 0; i < 8; i++){ if (b[i] & 0x80){ r[i] = 0; } else { r[i] = a[b[i] & 0x07]; } }