Early WIP, probably usable, requires more testing. BACKUP YOUR SAVES FIRST
Sega Saturn library for reading\writing save game files. The goals are:
- work on real hardware
- support as many backup devices as possible (internal memory, cartridge, floppy, ODEs, etc)
- provide a shim layer for replacing Sega's BUP library
- MIT license for easy integration with Jo Engine, YAUL, and/or any other Saturn frameworks. MIT licensing will allow commercial products (such as ODE menus) to use the library as well
The following devices are planned to be supported. I am open to adding any device as long as the code contributed to libslinga is MIT.
| Device | Read Support | Write Support | Notes |
|---|---|---|---|
| Internal Memory | ✔️ | ✔️ | |
| Cartridge Memory | ✔️ | ✔️ | |
| Serial Link | |||
| RAM | Partially Implemented | Partially Implemented | Helper device used to read\dump memory for Save Game Copier. Not the same as Internal\Cartridge memory |
| CD | |||
| Action Replay Plus Cartridge | ✔️ | Read only support checked in. Requires Action Replay Plus (with 1 and/or 4MB RAM expansion). Write support seems really hard so no plan at the moment... | |
| Satiator ODE | Current code is not MIT | ||
| MODE ODE | Current code is not MIT | ||
| Fenrir ODE | Need library from developer | ||
| Phoebe/Rhea ODE | Phoebe/Rhea do not currently support writing to the SD card AFAIK. Need support from developer |
For the shim layer I'm envisioning replacing the BUP library pointer at 0x06000354 with the shim. This would require an AR Cheat Code functionality. Once shimmed:
- Cartridge support could be replaced seamlessly with floppy or ODE support
- No limit to cartridge storage space. The support sizes of cartridges are stored in the BUP library. Replacing BUP lib means we can do whatever want.
- Development of Pseudo Saturn Kai or similar cart that can support both ram expansion and direct save. Honestly not sure if this is already a thing.
libslinga makes use of Doxygen. Run "doxygen Doxyfile" to build the documentation.
The demos are built with Jo Engine. See Samples dir.
- Knight0fDragon - advice
- Antime - advice
- Cafe-Alpha - BUP file format
- Previous research: https://segaxtreme.net/threads/decompilation-of-backup-library.25353/
- Professor Abrassive - Satiator lib
- Jo Engine - used to build the examples