_mm_hadd_pi16
Classification
SSE_ALL, Arithmetic, CPUID Test: SSSE3
Header File
tmmintrin.h
Instruction
PHADDW mm, mm
Synopsis
 _mm_hadd_pi16(__m64 a, __m64 b);
Description
Horizontally add adjacent pairs of 16-bit integers in "a" and "b", and pack the signed 16-bit results in "dst".
Operation
dst[15:0] := a[31:16] + a[15:0]
dst[31:16] := a[63:48] + a[47:32]
dst[47:32] := b[31:16] + b[15:0]
dst[63:48] := b[63:48] + b[47:32]