_mm_maskz_movehdup_ps
Classification
AVX-512, Move, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VMOVSHDUP xmm {z}, xmm
Synopsis
 _mm_maskz_movehdup_ps(__mmask8 k, __m128 a);
Description
Duplicate odd-indexed single-precision (32-bit) floating-point elements from "a", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
tmp[31:0] := a[63:32] 
tmp[63:32] := a[63:32] 
tmp[95:64] := a[127:96] 
tmp[127:96] := a[127:96]
FOR j := 0 to 3
	i := j*32
	IF k[j]
		dst[i+31:i] := tmp[i+31:i]
	ELSE
		dst[i+31:i] := 0
	FI
ENDFOR
dst[MAX:128] := 0