_mm512_mask_srlv_epi64
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
Instruction
VPSRLVQ zmm {k}, zmm, zmm
Synopsis
_mm512_mask_srlv_epi64(__m512i src, __mmask8 k, __m512i a, __m512i count);
Description
Shift packed 64-bit integers in "a" right by the amount specified by the corresponding element in "count" while shifting in zeros, and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 7
i := j*64
IF k[j]
IF count[i+63:i] < 64
dst[i+63:i] := ZeroExtend64(a[i+63:i] >> count[i+63:i])
ELSE
dst[i+63:i] := 0
FI
ELSE
dst[i+63:i] := src[i+63:i]
FI
ENDFOR
dst[MAX:512] := 0