# bextr2_u64(ulong, ulong)

> Extract contiguous bits from unsigned 64-bit integer a, and store the result in dst. Extract the number of bits specified by bits 15:8 of control, starting at the bit specified by bits 0:7 of control..

## Definition

* **Type:** Method
* **Namespace:** [Unity.Burst.Intrinsics](/engine/6000.6/script-reference/unity/burst/intrinsics.md)
* **Assembly:** UnityEngine.BurstModule

```csharp
public static ulong bextr2_u64(ulong a, ulong control)
```

### Parameters

**** (\[ulong]\(https\://learn.microsoft.com/dotnet/api/system.uint64)): 32-bit integer**** (\[ulong]\(https\://learn.microsoft.com/dotnet/api/system.uint64)): Control

### Returns

| Type                                                          | Description    |
| ------------------------------------------------------------- | -------------- |
| [ulong](https://learn.microsoft.com/dotnet/api/system.uint64) | 64-bit integer |

### Remarks

\_\_\_\_ bextr r64, r64, r64