Pen is a ColecoVision emulator written using AssemblyScript / TypeScript which runs in WebAssembly! Pen is written entirely from scratch, including the CPU emulator! It's a little buggy at the moment and doesn't have support for all the graphics modes, but it's able to play a few retail games!
Clone the repo:
git clone git@github.com:/mstrodl/pen
Install dependencies:
pnpm i
Place ColecoVision BIOS in ./roms/bios.col
Add a default game rom to ./roms/dk.col
Build emulator:
pnpm run asbuild:optimized
Build frontend:
node_modules/.bin/parcel build index.html
Emulator should be in dist/ directory and ready to be served!
- More video modes need to be implemented
- Donkey Kong can crash on level 3
- Donkey Kong has flickering issues
- A few IX/IY ops are yet unimplemented