_mm256_mask_cvtepi16_epi8
Classification
AVX-512, Convert, CPUID Test: AVX512BW
Header File
Instruction
VPMOVWB xmm {k}, ymm
Synopsis
_mm256_mask_cvtepi16_epi8(__m128i src, __mmask16 k, __m256i a);
Description
Convert packed 16-bit integers in "a" to packed 8-bit integers with truncation, 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 := 16*j
l := 8*j
IF k[j]
dst[l+7:l] := Truncate8(a[i+15:i])
ELSE
dst[l+7:l] := src[l+7:l]
FI
ENDFOR
dst[MAX:128] := 0