# PS2 Floating-point: reconstructing console arithmetic behavior

> PS2 Floating-point reconstructs aspects of PlayStation 2 floating-point behavior in Rust using console experiments as a baseline. Its Ps2Float type represents the console's floating-point variant and implements addition and subtraction, with test cases for ordinary values and special cases.

- Type: Case study
- Targets: Firmware
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/gregorygaines/ps2-floating-point-rs>
- Primary source: <https://github.com/gregorygaines/ps2-floating-point-rs/blob/9182dfdc42971a4e3734d60e2a5aa0bff3d0bf6f/README.md>
- Catalog page: <https://awesomerea.org/resources/ps2-floating-point-case/>
- Record JSON: <https://awesomerea.org/resources/ps2-floating-point-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/ps2-floating-point-case/index.md)

## Requirements & limits

- **Scope:** The implementation documents addition and subtraction; the author plans further findings as the emulator work progresses.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/gregorygaines/ps2-floating-point-rs/blob/9182dfdc42971a4e3734d60e2a5aa0bff3d0bf6f/README.md>
2. <https://github.com/gregorygaines/ps2-floating-point-rs/blob/9182dfdc42971a4e3734d60e2a5aa0bff3d0bf6f/src/lib.rs>
3. <https://github.com/gregorygaines/ps2-floating-point-rs/blob/9182dfdc42971a4e3734d60e2a5aa0bff3d0bf6f/tests/lib.rs>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.