_mm512_mask_max_epu8
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
Instruction
VPMAXUB zmm {k}, zmm, zmm
Synopsis
_mm512_mask_max_epu8(__m512i src, __mmask64 k, __m512i a, __m512i b);
Description
Compare packed unsigned 8-bit integers in "a" and "b", and store packed maximum values in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 63
i := j*8
IF k[j]
dst[i+7:i] := MAX(a[i+7:i], b[i+7:i])
ELSE
dst[i+7:i] := src[i+7:i]
FI
ENDFOR
dst[MAX:512] := 0