Visible to Intel only — GUID: GUID-7BFD9B65-6AC5-4E16-B126-0EAEA7E8E54E
Visible to Intel only — GUID: GUID-7BFD9B65-6AC5-4E16-B126-0EAEA7E8E54E
Concatenate Intrinsics
These Supplemental Streaming SIMD Extensions 3 (SSSE3) intrinsics are used concatenation. The prototypes for these intrinsics are in tmmintrin.h.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
_mm_alignr_epi8
extern __m128i _mm_alignr_epi8(__m128i a, __m128i b, int n);
Concatenates a and b, extracts byte-aligned result shifted to the right by n.
Interpreting t1 as 256-bit unsigned integer, a, b, and r as 128-bit unsigned integers:
t1[255:128] = a; t1[127:0] = b; t1[255:0] = t1[255:0] >> (8 * n); // unsigned shift r[127:0] = t1[127:0];
_mm_alignr_pi8
extern __m64 _mm_alignr_pi8(__m64 a, __m64 b, int n);
Concatenates a and b, extracts byte-aligned result shifted to the right by n.
Interpreting t1 as 128-bit unsigned integer, a, b, and r as 64-bit unsigned integers:
t1[127:64] = a; t1[63:0] = b; t1[127:0] = t1[127:0] >> (8 * n); // unsigned shift r[63:0] = t1[63:0];