_mm256_maskz_srai_epi32
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
Instruction
VPSRAD ymm {z}, ymm, imm8
Synopsis
_mm256_maskz_srai_epi32(__mmask8 k, __m256i a, unsigned int imm8);
Description
Shift packed 32-bit integers in "a" right by "imm8" while shifting in sign bits, and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 7
i := j*32
IF k[j]
IF imm8[7:0] > 31
dst[i+31:i] := (a[i+31] ? 0xFFFFFFFF : 0x0)
ELSE
dst[i+31:i] := SignExtend32(a[i+31:i] >> imm8[7:0])
FI
ELSE
dst[i+31:i] := 0
FI
ENDFOR
dst[MAX:256] := 0