_mm256_mask_avg_epu8
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPAVGB ymm {k}, ymm, ymm
Synopsis
 _mm256_mask_avg_epu8(__m256i src, __mmask32 k, __m256i a, __m256i b);
Description
Average packed unsigned 8-bit integers in "a" and "b", and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 31
	i := j*8
	IF k[j]
		dst[i+7:i] := (a[i+7:i] + b[i+7:i] + 1) >> 1
	ELSE
		dst[i+7:i] := src[i+7:i]
	FI
ENDFOR
dst[MAX:256] := 0