nestalgia_rs

A (to-be performant) Rust-based emulation of the Nintendo Entertainment System, rendered with macroquad.

Features

NES 6502 implementation
Basic PPU function

Runs...

ROM	Status
Pac-man	✅
Balloon Fight	crashes after 3rd room?
Donkey Kong	✅
nestest	✅
The Legend of Zelda	❌
Final Fantasy	❌

Building

Copy a ROM into the repo and change the filename in main.rs. Then, navigate to src and run

cargo build --release
cargo run --release.

I'm planning on implementing nicer UI later.

Roadmap

CPU
- Official instructions
- BUS
- Unofficial instructions
- Cycle accuracy
Cartridges
- iNES format
- Mapper 1
PPU
- PPU registers
- NMI interrupt
- Background rendering
- Foreground rendering
- Scrolling
- Correct DMA behavior
UI
- Controller mappings
- FPS
APU
- APU
Testing/docs
- 6502 test suite
- Blargg CPU/PPU tests
- Docs