_mm_maskz_srlv_epi64
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
Instruction
VPSRLVQ xmm {z}, xmm, xmm
Synopsis
_mm_maskz_srlv_epi64(__mmask8 k, __m128i a, __m128i 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 zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 1
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] := 0
FI
ENDFOR
dst[MAX:128] := 0