NesOxyde

A NES emulator 100% written in Rust

Overview

This project is my first big coding project and also my first emulator (I'm not counting my Chip8 emulator because it was very simple compared to this one).

I chose Rust because it's fast and it's by far my favorite language. Also all the code is 100% safe Rust!

The emulator is not cycle accurate, but all the games I've tried work pretty well. Based on the mappers I implemented, appart from a few exceptions, ~90% of games should work.

Usage

The program needs libsdl2 to run and libsdl2-devel to compile. It works on Linux, Windows and MacOS

Launch: ./nesoxyde [SyncMode] <iNES File>

SyncMode:

• Audio sync (default): The emulation is synced with the audio sample rate (44100Hz). Can cause frame lag.
• Video sync (-V): The emulation is synced with the video refresh rate of 60fps. Can cause audio pops and cracks.

Controls

R -> Reset
Esc -> Close emulator
1 -> Volume down
2 -> Volume up
F1 -> Save state
F2 -> Load state

Joypad:

• A -> B
• S -> A
• Z -> Select
• X -> Start
• UpArrow -> Up
• DownArrow -> Down
• LeftArrow -> Left
• RightArrow -> Right

Possible Improvements

• Make the CPU and PPU cycle accurate
• Change the sprite rendering routine to match what real hardware does
• Fix some mapper bugs (4 doesn't work with every game)

Screenshots