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🎮 awesomenes

A NES emulator written in Go.

dk smb

dk

Getting and running

awesomenes uses sdl2 for rendering and input processing. It may be necessary to install it beforehand. On macOS, using homebrew:

$ brew install sdl2

Other systems/package managers should provide similar sdl2/libsdl2 packages. Then use the go get:

$ go get github.com/rbaron/awesomenes
$ awesomenes MY_ROM.nes

Status

Games that use the mapper 0 (NROM) mostly work, although without audio so far. Games that use mapper 4 (mmc3) should work with some eventual glitches.

Tested games:

  • Donkey Kong (NROM)
  • Super Mario Bros. (NROM)
  • Super Mario Bros. 2 (mmc3)
  • Super Mario Bros. 3 (mmc3, with some glitches)

Controller inputs

Keyboard (controller 1)

Arrow keys  -> NES arrows
A           -> NES A
S           -> NES B
Enter       -> NES start
Right shift -> NES select

Nintendo Switch Joycon (controller 1)

Directional -> NES arrows
Down arrow  -> NES A
Right arrow -> NES B
SL          -> NES select
SR          -> NES start

Roadmap

✅ CPU emulation

✅ Video support (picture processing unit - PPU)

✅ Keyboard input

✅ Mapper 0

✅ Joystick input (tested with Nintendo Switch Joycon)

✅ Mapper 4 (...kinda)

➖ More mappers

➖ Save state

➖ Audio support (audio processing unit - APU)

Resources

All the information used to build this emulator was found on the awesome nesdev wiki.

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