---
title: machine_read_isa_feat1
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 11.0+]
path: kernel/3609137-machine_read_isa_feat1
---

# machine_read_isa_feat1

## Declaration

```occ
arm_isa_feat1_reg machine_read_isa_feat1(void);
```