_mm512_maskz_extractf32x8_ps
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512DQ
Header File
Instruction
VEXTRACTF32X8 ymm {z}, zmm, imm8
Synopsis
_mm512_maskz_extractf32x8_ps(__mmask8 k, __m512 a, int imm8);
Description
Extract 256 bits (composed of 8 packed single-precision (32-bit) floating-point elements) from "a", selected with "imm8", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
CASE imm8[0] OF
0: tmp[255:0] := a[255:0]
1: tmp[255:0] := a[511:256]
ESAC
FOR j := 0 to 7
i := j*32
IF k[j]
dst[i+31:i] := tmp[i+31:i]
ELSE
dst[i+31:i] := 0
FI
ENDFOR
dst[MAX:256] := 0