Saturn

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The Sega Saturn is a 32 bit 5th generation home video game console released by Sega in 1994. It has a total of 8 processors which makes it one of the most difficult consoles to emulate.

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Emulator	Rom Folder	Extension	BIOS	Controller Config
lr-yabause	saturn	.bin .cue .iso .mdf	saturn_bios.bin	/opt/retropie/configs/saturn/retroarch.cfg
lr-beetle-saturn	saturn	.bin .cue .iso .mdf	sega_101.bin, mpr-17933.bin	/opt/retropie/configs/saturn/retroarch.cfg

Emulators: lr-yabause, lr-beetle-saturn

lr-yabause is experimental, and even with an overclocked RPi4B it is slow so it isn't recommended for Raspberry Pi users at this time.

lr-beetle-saturn is for x86 PCs only, and is recommended for those with such hardware.

ROMS

Accepted File Extensions: .cue .bin .iso .mdf

Place your Sega Saturn ROMs in

/home/pi/RetroPie/roms/saturn

Why don't my .bin or .iso files show up?

RetroPie is configured to only show .cue files in EmulationStation so that you do not have two copies showing up of all your games.

A .cue file is basically a plain text file that tells the emulator where in the .bin file the (data and/or audio) track(s) are. This is often important in the case where multiple audio files are in the single .bin file. These are often called "mixed mode" discs. Wikipedia .cue files

If you only have a .bin file and no .cue file, you can generate it:

• Manually
• Individually
• En masse or individually

a few more notes on cue sheets HERE

BIOS

The BIOS file needed for lr-yabause is saturn_bios.bin or for lr-beetle-saturn sega_101.bin (Required for JP games) and mpr-17933.bin (Required for US/EU games)

Place your BIOS in

/home/pi/RetroPie/BIOS

BIOS files

File	md5sum	CRC32
saturn_bios.bin	af5828fdff51384f99b3c4926be27762	2aba43c2
sega_101.bin	85ec9ca47d8f6807718151cbcca8b964	224b752c
mpr-17933.bin	3240872C70984B6CBFDA1586CAB68DBE	4AFCF0FA

Controls

lr-yabause and lr-beetle-saturn utilise Retroarch configurations

Add custom retroarch controls to the retroarch.cfg file in

/opt/retropie/configs/saturn/retroarch.cfg

For more information on custom RetroArch controls see: RetroArch Configuration

Standalone

The standalone version runs faster but requires X, QT, etc. Even then, it manages 10FPS so probably not worth adding to the scripts. If you're curious, here's the basic instructions to get it installed:

sudo apt update
sudo apt install xinit qt4-dev-tools build-essential libgl1-mesa-dev

make some directory, and go in it

mkdir tempdev
cd tempdev

git clone https://github.com/Yabause/yabause.git

cd yabause/yabause/src

cmake -DYAB_WANT_OPENGL=NO $SOURCES

make

go into a terminal on your pi itself

navigate to /your_directory/yabause/yabausesrc/qt

sudo xinit ./yabause