NES - aceituning/retroace GitHub Wiki

nes

The Nintendo Entertainment System (NES) is an 8-bit home video game console that was released by Nintendo in 1985. This console officially ended the video game crash of 1983-1984.

Emulator Rom Folder Extension BIOS Controller Config
lr-fceumm nes .7z .fds .nes .zip disksys.rom /opt/retropie/configs/nes/retroarch.cfg
lr-nestopia nes .7z .fds .nes .zip disksys.rom /opt/retropie/configs/nes/retroarch.cfg
lr-quicknes nes .7z .nes .zip none /opt/retropie/configs/nes/retroarch.cfg

If you want Famicom Disk System as a seperate system, see the wiki page HERE

Emulators: lr-nestopia, lr-fceumm, lr-quicknes

ROMS

Accepted File Extensions: .7z .fds .nes .zip - make sure your roms have headers. Roms without headers will not work. If you want to use PAL roms, make sure they contain (E) or (Europe) in the filename, or else they may be run at the wrong speed.

Place your NES Roms in

/home/pi/RetroPie/roms/nes

BIOS

FDS games require the disksys.rom bios file. Place the BIOS in

/home/pi/RetroPie/BIOS
Name md5sum CRC32
Family Computer Disk System (Japan) (Rev 1) ca30b50f880eb660a320674ed365ef7a 5e607dcf

Controls

All three emulators utilise Retroarch configurations. Add custom retroarch controls to the retroarch.cfg file in

/opt/retropie/configs/nes/retroarch.cfg

nesdiagram

Tweaks

How to setup Turbo Buttons for lr-fceumm

Open the RetroArch RGUI by pressing Select+X on the controller, or Hotkey+F1 on the keyboard then navigate to:

  • Quick Menu
    • Options
      • Change Turbo Enable to either Player 1, Player 2, Both or None by pressing left or right
      • You can also change the Turbo Delay (in frames) (Default is 3)

Go back to the Quick Menu and then to Resume.

How to disable Crop Overscan in lr-fceumm

Open the RetroArch RGUI:

  • Quick Menu
    • Options
      • Change Crop Overscan to disabled by pressing left or right

Go back to the Quick Menu and then to Resume.

How to disable Crop Overscan in lr-quicknes

Add this to your /opt/retropie/configs/nes/retroarch.cfg file. Make sure that this is placed above the #include line.

video_crop_overscan = false

The NES Select Button

The NES controller has a select button that would be used to make selections in menu or change function in-game. For a list, see here.

When configuring RetroArch emulators, the select button is usually mapped to the physical select button on your controller as is the hotkey. Consequently, when you press the select button on your controller in a NES game to make a selection in a menu, in The Legend of Zelda, for example, nothing will happen as RetroArch is expecting a second button to be pressed such as start to exit the emulator.

There are two solutions to overcome this.

Either Remap the select button

In the NES RetroArch config file, /opt/retropie/configs/nes/retroarch.cfg, above the #include" line, add the following line:

input_player1_select_btn = "x"

where x is the button number you wish to remap the select button to.

Or Remap the hotkey button

In the NES RetroArch config file, /opt/retropie/configs/nes/retroarch.cfg, above the #include" line, add the following line:

input_enable_hotkey_btn = "x"

where x is the button number you wish to remap the hotkey to.

Both of these changes can also be made using the RGUI.