smolnes

A NES emulator in ~5000 significant bytes of c++.

Features

Plays some mapper 0 and mapper 1 games.

Screenshots

Bionic Commando Donkey Kong Dragon Warrior Adventures of Lolo Legend of Zelda Metroid Mega Man 2 Ninja Gaiden Rad Racer Super Mario Bros. Teenage Mutant Ninja Turtle

Source Code

Building

Probably only builds on Linux and macOS. Needs a compiler with the case range extension, so gcc or clang probably.

$ make

Running

$ ./smolnes <rom.nes>

Keys:

Action Key
DPAD-UP
DPAD-DOWN
DPAD-LEFT
DPAD-RIGHT
B Z
A X
START Enter
SELECT Tab

Updating keys

Look for lines 23 and 24 in the source code. The following table shows which numbers map to which keyboard keys:

number default key gameboy button
27 X A Button
29 Z B Button
43 Tab Select Button
40 Return Start Button
79 Arrow Right DPAD Right
80 Arrow Left DPAD Left
81 Arrow Down DPAD Down
82 Arrow Up DPAD Up

Replace the numbers on this line with one from the SDL scancode list.

GitHub

View Github