_mm_maskz_add_round_sh
Classification
AVX-512, Arithmetic, CPUID Test: AVX512_FP16
Header File
immintrin.h
Instruction
VADDSH xmm {z}, xmm, xmm {er}
Synopsis
 _mm_maskz_add_round_sh(__mmask8 k, __m128h a, __m128h b, int rounding);
Description
Add the lower half-precision (16-bit) floating-point elements in "a" and "b", store the result in the lower element of "dst" using zeromask "k" (the element is zeroed out when mask bit 0 is not set), and copy the upper 7 packed elements from "a" to the upper elements of "dst". [round_note]
Operation
IF k[0]
	dst.fp16[0] := a.fp16[0] + b.fp16[0]
ELSE
	dst.fp16[0] := 0
FI
dst[127:16] := a[127:16]
dst[MAX:128] := 0