_mm_hsub_pi16
Classification
SSE_ALL, Arithmetic, CPUID Test: SSSE3
Header File
Instruction
PHSUBW mm, mm
Synopsis
_mm_hsub_pi16(__m64 a, __m64 b);
Description
Horizontally subtract adjacent pairs of 16-bit integers in "a" and "b", and pack the signed 16-bit results in "dst".
Operation
dst[15:0] := a[15:0] - a[31:16]
dst[31:16] := a[47:32] - a[63:48]
dst[47:32] := b[15:0] - b[31:16]
dst[63:48] := b[47:32] - b[63:48]