_mm512_maskz_max_round_pd
Classification
AVX-512, Special Math Functions, CPUID Test: AVX512F
Header File
Instruction
VMAXPD zmm {z}, zmm, zmm {sae}
Synopsis
_mm512_maskz_max_round_pd(__mmask8 k, __m512d a, __m512d b, int sae);
Description
Compare packed double-precision (64-bit) floating-point elements in "a" and "b", and store packed maximum values in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set). [sae_note][max_float_note]
Operation
FOR j := 0 to 7
i := j*64
IF k[j]
dst[i+63:i] := MAX(a[i+63:i], b[i+63:i])
ELSE
dst[i+63:i] := 0
FI
ENDFOR
dst[MAX:512] := 0