# fmadd_pd(v128, v128, v128)

> Multiply packed double-precision (64-bit) floating-point elements in a and b, add the intermediate result to packed elements in c, and store the results in dst.

## Definition

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

```csharp
public static v128 fmadd_pd(v128 a, v128 b, v128 c)
```

### Parameters

**** (\[v128]\(/engine/6000.6/script-reference/unity/burst/intrinsics/v128)): Vector a**** (\[v128]\(/engine/6000.6/script-reference/unity/burst/intrinsics/v128)): Vector b**** (\[v128]\(/engine/6000.6/script-reference/unity/burst/intrinsics/v128)): Vector c

### Returns

| Type                                                                   | Description |
| ---------------------------------------------------------------------- | ----------- |
| [v128](/engine/6000.6/script-reference/unity/burst/intrinsics/v128.md) | Vector      |

### Remarks

\_\_\_\_ vfmadd213pd xmm, xmm, xmm