An NES emulator written in Go
Mac OS X/Linux/Windows
Install Azul3D by following the official installation instructions for your platform.
go get -u github.com/nwidger/nintengo
WebAssembly support requires Go 1.11 or higher.
go get -d -u github.com/nwidger/nintengo
cd $GOPATH/src/github.com/nwidger/nintengo GOOS=js GOARCH=wasm go build -o wasm/nintengo.wasm .
Start web server running on port 8000
cd $GOPATH/src/github.com/nwidger/nintengo/wasm go run serve.go -http :8000
http://localhost:8000in your browser. Press the
Choose Filebutton and select a
.nesfile to run.
nintengo OPTIONS FILE FILE can be a .nes file or a .nes file inside a .zip archive -audio-recorder="": recorder to use: none | wav -connect="": Connect to address as slave, <rom-file> will be ignored (e.g., 'localhost:8080') -cpu-decode=false: decode CPU instructions -cpu-profile="": write CPU profile to file -http="": HTTP service address (e.g., ':6060') -listen="": Listen at address as master (e.g., ':8080') -mem-profile="": write memory profile to file -recorder="": recorder to use: none | jpeg | gif -region="NTSC": system region to emulate: NTSC | PAL
z - A x - B Enter - Start Right Shift - Select Arrow keys - Up/Down/Left/Right p - Pause/Unpause n - Toggle stepping by cycle/scanline/frame with p r - Reset q - Quit F1 - save state F5 - load state F8 - 200% FPS (2x fast forward) F9 - 100% FPS F10 - 75% FPS F11 - 50% FPS F12 - 25% FPS ` - toggle overscan 1 - 256x240 screen size 2 - 512x480 screen size 3 - 768x720 screen size 4 - 1024x960 screen size 5 - 2560x1440 screen size 9 - Show/hide background 0 - Show/hide sprites keypad 0 - toggle mute all channels keypad 1 - toggle mute pulse 1 channel keypad 2 - toggle mute pulse 2 channel keypad 3 - toggle mute triangle channel keypad 4 - toggle mute noise channel keypad 5 - toggle mute DMC channel l - Save pattern tables to left/right.jpg o - Toggle CPU decoding i - Toggle PPU decoding with -recorder=gif: s - Start recording to frame.gif d - Stop recording with -recorder=jpeg: s - Save screenshot to frame.jpg with -audio-recorder=wav: keypad - (minus) - Start audio recording to audio.wav keypad + (plus) - Stop audio recording
Audio support is currently a work in progress. All audio channels are working in some capacity.
Battery backed saves is implemented and are saved to disk with a
.sav file extension.
Save states are supported and are saved to disk with a
Nintengo includes two-player netplay support using the
-connect command-line arguments. To use, player one launches
nintengo and tells it to listen for incoming connections using the
nintengo -listen=:8080 FILE
Player two then connects to player one using the
providing the server's host/port:
Note that player two does not need to provide a
This project would not have been possible without the amazing treasure
trove of information that is the
and the fine folks at
#nesdev on EFnet.
Being able to read the source code of other NES emulators was also extremely helpful. The following is a short list of the ones I consulted most often, although it is probably not the complete list: