# _mm256_movedup_pd

Duplicates even-indexed double-precision floating point values. The corresponding Intel® AVX instruction is VMOVDDUP.

## Syntax

extern __m256d _mm256_movedup_pd(__m256d a);

## Arguments

a | float64 source vector

## Description

Performs a duplication of even-indexed double-precision floating-point values (float64 values) in the source vector a, and returns the result.

## Returns

Result of the duplication operation.

Parent topic: Intrinsics for Miscellaneous Operations