_mm512_maskz_expandloadu_epi8
Classification
AVX-512, Swizzle, CPUID Test: AVX512_VBMI2
Header File
Instruction
VPEXPANDB zmm {z}, m512
Synopsis
_mm512_maskz_expandloadu_epi8(__mmask64 k, const void* mem_addr);
Description
Load contiguous active 8-bit integers 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 63
i := j*8
IF k[j]
dst[i+7:i] := MEM[mem_addr+m+7:mem_addr+m]
m := m + 8
ELSE
dst[i+7:i] := 0
FI
ENDFOR
dst[MAX:512] := 0