OCamNes

Yes. Yet another NES Emulator.

Currently passes the Nestest suite up to unofficial opcodes.

Controls

• Q, Escape -> Quit
• Arrow keys -> Left, down, up, right
• Z: A button
• X: B Button
• Return -> Start
• Left Shift -> Select
• S -> Saves a screenshot as screenshot.png
• Apostrophe -> Start the debugger

Games running mostly glitch-less:

• Super Mario Bros
• Donkey kong
• Balloon fight
• Lode runner
• Contra
• Gradius

How to build

• dune build
• opam install . --deps-only
• dune exec ./bin/main.exe

TODO

• Mappers (only NROM/UxROM/CNROM are supported)
• PPU
  • Special flags to stop rendering sprites at the edge
• IRQ (Not sure if they're used anywhere)
• APU
• Second controller
• Unofficial opcodes
• Load/Save state
• Better debugger and logging
• Remap controls
• CLI args