_mm512_mask_cmpeq_epi8_mask
Classification
AVX-512, Compare, CPUID Test: AVX512BW
Header File
Instruction
VPCMPB k {k}, zmm, zmm
Synopsis
_mm512_mask_cmpeq_epi8_mask(__mmask64 k1, __m512i a, __m512i b);
Description
Compare packed signed 8-bit integers in "a" and "b" for equality, and store the results in mask vector "k" using zeromask "k1" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 63
i := j*8
IF k1[j]
k[j] := ( a[i+7:i] == b[i+7:i] ) ? 1 : 0
ELSE
k[j] := 0
FI
ENDFOR
k[MAX:64] := 0