_mm256_maskz_srav_epi16
Classification
AVX-512, Shift, CPUID Test: AVX512BW
Header File
Instruction
VPSRAVW ymm {z}, ymm, ymm
Synopsis
_mm256_maskz_srav_epi16(__mmask16 k, __m256i a, __m256i count);
Description
Shift packed 16-bit integers in "a" right by the amount specified by the corresponding element in "count" while shifting in sign bits, 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 15
i := j*16
IF k[j]
IF count[i+15:i] < 16
dst[i+15:i] := SignExtend16(a[i+15:i] >> count[i+15:i])
ELSE
dst[i+15:i] := (a[i+15] ? 0xFFFF : 0)
FI
ELSE
dst[i+15:i] := 0
FI
ENDFOR
dst[MAX:256] := 0