https://github.com/urholaukkarinen/nessu

NES emulator written in Rust
https://github.com/urholaukkarinen/nessu

Last synced: 27 days ago
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NES emulator written in Rust

• Host: GitHub
• URL: https://github.com/urholaukkarinen/nessu
• Owner: urholaukkarinen
• License: mit
• Created: 2022-07-31T10:02:32.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-07-31T11:59:11.000Z (almost 3 years ago)
• Last Synced: 2025-02-12T12:57:25.659Z (3 months ago)
• Language: Rust
• Size: 105 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# NESsu - NES Emulator

![Screenshot of the emulator](screenshot.png)

Nessu is a NES emulator written in the Rust programming language.

This is a personal project that I started for learning how emulators work.

## Usage

* Start the emulator by running `cargo run -p nessu-app`.

* Drag & drop a NES rom onto the emulator

## Keymap

### Controllers

* Arrow keys: **Up/Down/Left/Right**

* Enter: **Start**

* S: **Select**

* A: **A**

* B: **B**

### Miscellaneous

* Space: stop/resume execution

## Supported mappers

* [NROM](https://www.nesdev.org/wiki/NROM)

* [UxROM](https://www.nesdev.org/wiki/UxROM)

* [MMC1](https://www.nesdev.org/wiki/MMC1)

* [MMC3](https://www.nesdev.org/wiki/MMC3)

* [MMC4](https://www.nesdev.org/wiki/MMC4)

## Some known issues and missing features

* Audio (APU) has not yet been implemented.

* Some games do not work properly, possibly due to timing issues or bugs in the mappers. 

For example, Final Fantasy gets stuck when a fight starts and Mario 3 has some visual bugs.

* Various timing test roms do not yet pass.