_mm256_mask_sll_epi16
Classification
AVX-512, Shift, CPUID Test: AVX512BW
Header File
Instruction
VPSLLW ymm {k}, ymm, xmm
Synopsis
_mm256_mask_sll_epi16(__m256i src, __mmask16 k, __m256i a, __m128i count);
Description
Shift packed 16-bit integers in "a" left by "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 15
i := j*16
IF k[j]
IF count[63:0] > 15
dst[i+15:i] := 0
ELSE
dst[i+15:i] := ZeroExtend16(a[i+15:i] << count[63:0])
FI
ELSE
dst[i+15:i] := src[i+15:i]
FI
ENDFOR
dst[MAX:256] := 0