# R64Emu: low-level Nintendo 64 hardware reconstruction

> R64Emu reconstructs Nintendo 64 hardware behavior in a low-level Rust emulator informed by work on actual hardware. It documents the RSP's scalar and vector units, models CPU and console subsystems, and includes a debugger with disassembly, stepping, breakpoints and watchpoints.

- Type: Case study
- Targets: Firmware
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/rasky/r64emu>
- Primary source: <https://github.com/rasky/r64emu/blob/5d95a7cacbcae483d1a3f4865297813843c1e26e/README.md>
- Catalog page: <https://awesomerea.org/resources/r64emu-n64-case/>
- Record JSON: <https://awesomerea.org/resources/r64emu-n64-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/r64emu-n64-case/index.md)

## Requirements & limits

- **Prerequisites:** Rust nightly and an N64 BIOS file at bios/pifdata.bin are required.
- **Limits:** The author describes the emulator as preliminary, with no playable games.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/rasky/r64emu/blob/5d95a7cacbcae483d1a3f4865297813843c1e26e/README.md>
2. <https://github.com/rasky/r64emu/blob/5d95a7cacbcae483d1a3f4865297813843c1e26e/doc/rsp.md>

## More in Firmware and hardware

- [Nuked-MD-FPGA: Sega Mega Drive chipset reconstruction](https://awesomerea.org/resources/nuked-md-fpga-case/index.md) · Case study
- [CamLink 4K: replacement gateware and firmware for an Elgato capture card](https://awesomerea.org/resources/camlink-4k-case/index.md) · Case study
- [pw_firm: a Pokéwalker firmware decompilation](https://awesomerea.org/resources/pw-firm-pokewalker-decomp-case/index.md) · Case study
- [Strato: Nintendo Switch system emulation on Android](https://awesomerea.org/resources/strato-switch-emulation-case/index.md) · Case study
- [Nuked MD: reconstructing the Sega Mega Drive chipset](https://awesomerea.org/resources/nuked-md-case/index.md) · Case study
- [NC2000/1020Emu: Wenquxing device emulation](https://awesomerea.org/resources/nc2000-1020emu-case/index.md) · Case study

## 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.