---
title: vS128SubS
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.0+]
path: kernel/1411116-vs128subs
---

# vS128SubS

Signed 128-bit subtraction with saturation (clipping).

## Declaration

```occ
vSInt32 vS128SubS(vSInt32 vA, vSInt32 vB);
```