_mm256_mask_srl_epi64
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPSRLQ ymm {k}, ymm, xmm
Synopsis
 _mm256_mask_srl_epi64(__m256i src, __mmask8 k, __m256i a, __m128i count);
Description
Shift packed 64-bit integers in "a" right 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 3
	i := j*64
	IF k[j]
		IF count[63:0] > 63
			dst[i+63:i] := 0
		ELSE
			dst[i+63:i] := ZeroExtend64(a[i+63:i] >> count[63:0])
		FI
	ELSE
		dst[i+63:i] := src[i+63:i]
	FI
ENDFOR
dst[MAX:256] := 0