# vqsubb_u8(byte, byte)

> Unsigned saturating Subtract. This instruction subtracts the element values of the second source SIMD&FP register from the corresponding element values of the first source SIMD&FP register, places the results into a vector, and writes the vector to 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: UQSUB Bd,Bn,Bm

## Definition

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

```csharp
public static byte vqsubb_u8(byte a0, byte a1)
```

### Parameters

**** (\[byte]\(https\://learn.microsoft.com/dotnet/api/system.byte)): Byte a0**** (\[byte]\(https\://learn.microsoft.com/dotnet/api/system.byte)): Byte a1

### Returns

| Type                                                       | Description |
| ---------------------------------------------------------- | ----------- |
| [byte](https://learn.microsoft.com/dotnet/api/system.byte) | Byte        |