# v64x4

> Represents a 256-bit SIMD value (Arm only) (a combination of 4 64-bit values, equivalent to Arm Neon *x4 types)

## Definition

* **Type:** Struct
* **Namespace:** [Unity.Burst.Intrinsics](/engine/6000.7/script-reference/unity/burst/intrinsics.md)
* **Assembly:** UnityEngine.BurstModule

```csharp
public struct v64x4
```

## Fields

| Value                                                                           | Description                          |
| ------------------------------------------------------------------------------- | ------------------------------------ |
| [v64\_0](/engine/6000.7/script-reference/unity/burst/intrinsics/v64x4/v64-0.md) | Get the first 64 bits of the vector  |
| [v64\_1](/engine/6000.7/script-reference/unity/burst/intrinsics/v64x4/v64-1.md) | Get the second 64 bits of the vector |
| [v64\_2](/engine/6000.7/script-reference/unity/burst/intrinsics/v64x4/v64-2.md) | Get the third 64 bits of the vector  |
| [v64\_3](/engine/6000.7/script-reference/unity/burst/intrinsics/v64x4/v64-3.md) | Get the fourth 64 bits of the vector |

## Constructors

| Constructor                                                                                                                                                                                | Description                       |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------- |
| [v64x4(Unity.Burst.Intrinsics.v64,Unity.Burst.Intrinsics.v64,Unity.Burst.Intrinsics.v64,Unity.Burst.Intrinsics.v64)](/engine/6000.7/script-reference/unity/burst/intrinsics/v64x4/ctor.md) | Initialize the v64x4 with 4 v64's |