# vsqaddd_u64(ulong, long)

> Unsigned saturating Accumulate of Signed value. This instruction adds the signed integer values of the vector elements in the source SIMD&FP register to corresponding unsigned integer values of the vector elements in the destination SIMD&FP register, and accumulates the resulting unsigned integer values with the vector elements of the destination SIMD&FP register.If overflow occurs with any of the results, those results are saturated. If saturation occurs, the cumulative saturation bit FPSR.QC is set.Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped. Equivalent instruction: USQADD Dd,Dn

## Definition

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

```csharp
public static ulong vsqaddd_u64(ulong a0, long a1)
```

### Parameters

**** (\[ulong]\(https\://learn.microsoft.com/dotnet/api/system.uint64)): UInt64 a0**** (\[long]\(https\://learn.microsoft.com/dotnet/api/system.int64)): Int64 a1

### Returns

| Type                                                          | Description |
| ------------------------------------------------------------- | ----------- |
| [ulong](https://learn.microsoft.com/dotnet/api/system.uint64) | UInt64      |