_mm512_maskz_sub_epi8
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
Instruction
VPSUBB zmm {z}, zmm, zmm
Synopsis
_mm512_maskz_sub_epi8(__mmask64 k, __m512i a, __m512i b);
Description
Subtract packed 8-bit integers in "b" from packed 8-bit integers in "a", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 63
i := j*8
IF k[j]
dst[i+7:i] := a[i+7:i] - b[i+7:i]
ELSE
dst[i+7:i] := 0
FI
ENDFOR
dst[MAX:512] := 0