Libretro YabaSanshiro is a port of the Yabause emulator to Libretro supporting the Sega Saturn.
¶ 
License
This core is under GPLv2 license.
¶ 
Compatibility
| RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 |
|---|---|---|---|---|---|---|---|
| ❌ | ❌ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
¶ 
Features
¶ 
BIOS
¶ List of mandatory bios
| Filename | Description | MD5 | Provided |
|---|---|---|---|
| saturn_bios.bin | Saturn BIOS | af5828fdff51384f99b3c4926be27762 | ❌ |
¶ Location
Put the bios like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 bios
┃ ┃ ┃ ┣ 📁 saturn
┃ ┃ ┃ ┃ ┣ 🗒 saturn_bios.bin
¶ 
Isos
¶ Supported extensions
Isos must have the extension:
- .bin/.cue
- .m3u
- .img/.ccd
- .iso
- .mds/.mdf
- .m3u
- .chd
¶ Location
Put the isos like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 saturn
┃ ┃ ┃ ┃ ┣ 🗒 game.bin
┃ ┃ ┃ ┃ ┣ 🗒 game.cue
The isos using Redump format are highly recommended.
For more information about isos, go to this tutorial!
¶ 
Advanced configuration of the emulator
To be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
¶ Accessing to options
You can configure various options in two different ways.
- Via RetroArch menu:
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
- Via the file
retroarch-core-options.cfg:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
¶ Core options
| Options | Options values | Variables (for configuration override) | Variables values |
|---|---|---|---|
| Force HLE BIOS (restart) | Disabled ✅ / Enabled |
yabasanshiro_force_hle_bios |
disabled / enabled |
| Auto-frameskip | Enabled ✅ / Disabled |
yabasanshiro_frameskip |
enabled / disabled |
| Addon Cartridge (restart) | 1M_extended_ram / 4M_extended_ram ✅ |
yabasanshiro_addon_cart |
1M_extended_ram / 4M_extended_ram |
| System Language (restart) | english ✅ / deutsch / french / spanish / italian / japanese |
yabasanshiro_system_language |
english / deutsch / french / spanish / italian / japanese |
| 6Player Adaptor on Port 1 | Disabled ✅ / Enabled |
yabasanshiro_multitap_port1 |
disabled / enabled |
| 6Player Adaptor on Port 2 | Disabled ✅ / Enabled |
yabasanshiro_multitap_port2 |
disabled / enabled |
| SH2 Core (restart) | dynarec ✅ / interpreter |
yabasanshiro_sh2coretype |
dynarec / interpreter |
| Polygon Mode (restart) | perspective_correction ✅ / gpu_tesselation / cpu_tesselation |
yabasanshiro_polygon_mode |
perspective_correction / gpu_tesselation / cpu_tesselation |
| Resolution Mode (restart) | original ✅ / 2x / 4x / 720p / 1080p / 4k |
yabasanshiro_resolution_mode |
original / 2x / 4x / 720p / 1080p / 4k |
| RGB resolution mode | original ✅ / 2x / 720p / 1080p / Fit_to_emulation |
yabasanshiro_rbg_resolution_mode |
original / 2x / 720p / 1080p / Fit_to_emulation |
| RGB use compute shader for RGB | Disabled ✅ / Enabled |
yabasanshiro_rbg_use_compute_shader |
disabled / enabled |
¶ 
External links
- Source code used: https://github.com/libretro/yabause/
- Libretro documentation: https://docs.libretro.com/library/yabasanshiro/