_mm512_maskz_expandloadu_pd
Classification
AVX-512, Swizzle, CPUID Test: AVX512F
Header File
Instruction
VEXPANDPD zmm {z}, m512
Synopsis
_mm512_maskz_expandloadu_pd(__mmask8 k, void const* mem_addr);
Description
Load contiguous active double-precision (64-bit) floating-point elements from unaligned memory at "mem_addr" (those with their respective bit set in mask "k"), and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
m := 0
FOR j := 0 to 7
i := j*64
IF k[j]
dst[i+63:i] := MEM[mem_addr+m+63:mem_addr+m]
m := m + 64
ELSE
dst[i+63:i] := 0
FI
ENDFOR
dst[MAX:512] := 0