_mm512_mask_cmpneq_pd_mask
Classification
KNC, Compare, CPUID Test: KNCNI
Header File
Instruction
VCMPPD k {k}, zmm, zmm, imm8
Synopsis
_mm512_mask_cmpneq_pd_mask(__mmask8 k1, __m512d a, __m512d b);
Description
Compare packed double-precision (64-bit) floating-point elements in "a" and "b" for not-equal, 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 7
i := j*64
IF k1[j]
k[j] := (a[i+63:i] != b[i+63:i]) ? 1 : 0
ELSE
k[j] := 0
FI
ENDFOR
k[MAX:8] := 0