_mm256_mask_cvtepi8_epi16
Classification
AVX-512, Convert, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPMOVSXBW ymm {k}, xmm
Synopsis
 _mm256_mask_cvtepi8_epi16(__m256i src, __mmask16 k, __m128i a);
Description
Sign extend packed 8-bit integers in "a" to packed 16-bit integers, 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*8
	l := j*16
	IF k[j]
		dst[l+15:l] := SignExtend16(a[i+7:i])
	ELSE
		dst[l+15:l] := src[l+15:l]
	FI
ENDFOR
dst[MAX:256] := 0