_mm256_mask_srli_epi64
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPSRLQ ymm {k}, ymm, imm8
Synopsis
 _mm256_mask_srli_epi64(__m256i src, __mmask8 k, __m256i a, unsigned int imm8);
Description
Shift packed 64-bit integers in "a" right 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 3
	i := j*64
	IF k[j]
		IF imm8[7:0] > 63
			dst[i+63:i] := 0
		ELSE
			dst[i+63:i] := ZeroExtend64(a[i+63:i] >> imm8[7:0])
		FI
	ELSE
		dst[i+63:i] := src[i+63:i]
	FI
ENDFOR
dst[MAX:256] := 0