# _mm256_extractf128_pd

Extracts 128-bit packed float64 values. The corresponding Intel® AVX instruction is VEXTRACTF128.

## Syntax

extern __m128d _mm256_extractf128_pd(__m256d m1, const int offset);

## Arguments

m1 | float64 source vector
offset | a constant integer value that represents the 128-bit offset from where extraction must start

## Description

Extracts 128-bit packed double-precision floating point values (float64 values) from the source vector m1, starting from the location specified by the value in the offset parameter.

## Returns

Result of the extraction operation.

Parent topic: Intrinsics for Miscellaneous Operations