_mm_mask_cvtsepi64_epi8
Classification
AVX-512, Convert, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPMOVSQB xmm {k}, xmm
Synopsis
 _mm_mask_cvtsepi64_epi8(__m128i src, __mmask8 k, __m128i a);
Description
Convert packed signed 64-bit integers in "a" to packed 8-bit integers with signed saturation, 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 1
	i := 64*j
	l := 8*j
	IF k[j]
		dst[l+7:l] := Saturate8(a[i+63:i])
	ELSE
		dst[l+7:l] := src[l+7:l]
	FI
ENDFOR
dst[MAX:16] := 0