_mm256_mask_sra_epi32
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
Instruction
VPSRAD ymm {k}, ymm, xmm
Synopsis
_mm256_mask_sra_epi32(__m256i src, __mmask8 k, __m256i a, __m128i count);
Description
Shift packed 32-bit integers in "a" right by "count" while shifting in sign bits, 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 7
i := j*32
IF k[j]
IF count[63:0] > 31
dst[i+31:i] := (a[i+31] ? 0xFFFFFFFF : 0x0)
ELSE
dst[i+31:i] := SignExtend32(a[i+31:i] >> count[63:0])
FI
ELSE
dst[i+31:i] := src[i+31:i]
FI
ENDFOR
dst[MAX:256] := 0