---
title: OSDecrementAtomic64
framework: kernel
role: symbol
role_heading: Function
path: kernel/1576449-osdecrementatomic64
---

# OSDecrementAtomic64

64-bit decrement.

## Declaration

```occ
SInt64 OSDecrementAtomic64(volatile SInt64 *address);
```

## Discussion

Discussion See OSDecrementAtomic.

## See Also

### Decrement

- [OSDecrementAtomic](kernel/1576455-osdecrementatomic.md)
- [OSDecrementAtomic8](kernel/1576458-osdecrementatomic8.md)
- [OSDecrementAtomic16](kernel/1576468-osdecrementatomic16.md)