---
title: fpu_stmm3
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.4+]
path: kernel/x86_float_state64_t/1397434-fpu_stmm3
---

# fpu_stmm3

## Declaration

```occ
struct mmst_reg fpu_stmm3;
```