_mm_add_sh
Classification
AVX-512, Arithmetic, CPUID Test: AVX512_FP16
Header File
immintrin.h
Instruction
VADDSH xmm, xmm, xmm
Synopsis
 _mm_add_sh(__m128h a, __m128h b);
Description
Add the lower half-precision (16-bit) floating-point elements in "a" and "b", store the result in the lower element of "dst", and copy the upper 7 packed elements from "a" to the upper elements of "dst".
Operation
dst.fp16[0] := a.fp16[0] + b.fp16[0]
dst[127:16] := a[127:16]
dst[MAX:128] := 0