# vshlq_u64(v128, v128)

> Unsigned Shift Left (register). This instruction takes each element in the vector of the first source SIMD&FP register, shifts each element by a value from the least significant byte of the corresponding element of the second source SIMD&FP register, places the results in a vector, and writes the vector to the destination SIMD&FP register.If the shift value is positive, the operation is a left shift. If the shift value is negative, it is a truncating right shift. For a rounding shift, see URSHL.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: USHL Vd.2D,Vn.2D,Vm.2D

## Definition

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

```csharp
public static v128 vshlq_u64(v128 a0, v128 a1)
```

### Parameters

**** (\[v128]\(/engine/6000.7/script-reference/unity/burst/intrinsics/v128)): 128-bit vector a0**** (\[v128]\(/engine/6000.7/script-reference/unity/burst/intrinsics/v128)): 128-bit vector a1

### Returns

| Type                                                                   | Description    |
| ---------------------------------------------------------------------- | -------------- |
| [v128](/engine/6000.7/script-reference/unity/burst/intrinsics/v128.md) | 128-bit vector |