Modular and extensible Nintendo Entertainment System emulator written in C (still under development).
Always wanted to write some console emulator, so here it is.
- 6502 cpu emulation - cycle exact, both documented and undocumented opcodes, without decimal mode
- PPU emulation - still requires some work (graphical artefacts occur), but most popular titles using supported mappers should work just fine
- iNES memory mappers: 0, 2, 3
- Cocoa frontend featuring game library and keyboard controls
- Utility tools written in Elixir:
- NES ROM disassembler: nes-dasm.exs
- NES ROM examiner: rom-info.exs
- PRG ROM extractor: extract-prg.exs
You can create your own keyboard keymap in settings, located at nescocoa -> Preferences.... Default keymap for controller 1 is below.
| NES | nescocoa |
|---|---|
| Up, Down, Left, Right | Arrow keys |
| START | w |
| SELECT | q |
| A | a |
| B | s |
Project is using client-server architecture, with OS-specific frontend being a client and emulation library acting as a server.
- CMake 3.7+
- clang/clang++
- Google Test 1.8.1+
- opencv 4 (for some tools)
- macOS 10.14+ (for Cocoa frontend)
Just emulation library:
> mkdir Build/
> cd Build/
> cmake ../Emulator
> make
Emulation library and Cocoa frontend (only for macOS):
> cd Drivers/Cocoa
> ./build.sh
Then open nescocoa.xcodeproj, build and run.