_mm_mask_slli_epi16
Classification
AVX-512, Shift, CPUID Test: AVX512BW
Header File
Instruction
VPSLLW xmm {k}, xmm, imm8
Synopsis
_mm_mask_slli_epi16(__m128i src, __mmask8 k, __m128i a, unsigned int imm8);
Description
Shift packed 16-bit integers in "a" left by "imm8" 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*16
IF k[j]
IF imm8[7:0] > 15
dst[i+15:i] := 0
ELSE
dst[i+15:i] := ZeroExtend16(a[i+15:i] << imm8[7:0])
FI
ELSE
dst[i+15:i] := src[i+15:i]
FI
ENDFOR
dst[MAX:128] := 0