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Added a note about the `gba_bios.bin` loading bug, and how to work around it (thanks `bnister`!)
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vonmillhausen 2023-06-22 11:03:28 +01:00
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@ -176,6 +176,11 @@ Emulator is TGB Dual v0.8.3 (Git commit [`9be31d3`](https://github.com/libretro/
### Game Boy Advance ### Game Boy Advance
Emulator is gpSP v0.91 (Git commit [`261b2db`](https://github.com/libretro/gpsp/commit/261b2db)). Performance is fairly poor. On the original firmware, A and B buttons are mapped correctly, but the GBA shoulder buttons are mapped to X and Y for some reason. See "[Button Mappings/Key Bindings](#button-mappingskey-bindings)" section below. Emulator is gpSP v0.91 (Git commit [`261b2db`](https://github.com/libretro/gpsp/commit/261b2db)). Performance is fairly poor. On the original firmware, A and B buttons are mapped correctly, but the GBA shoulder buttons are mapped to X and Y for some reason. See "[Button Mappings/Key Bindings](#button-mappingskey-bindings)" section below.
While the SF2000 does include a copy of the real GBA BIOS file in the `bios` folder, there's a bug in the `05.22` firmware (and possibly earlier firmwares) that prevents that BIOS from ever actually being loaded. As such, gpSP _always_ falls back to the built-in "NORMMATT" BIOS instead (a reverse-engineered BIOS that is not identical to Nintendo's one). This has been noted to have some compatibility issues - for example, the main menu on "The Legend of Zelda - The Minish Cap" is broken on a stock SF2000 using the `05.22` firmware due to the NORMATT BIOS. You can correct for this bug by copying the `gba_bios.bin` file from the `bios` folder to the two following locations (create any folders as needed):
- `GBA/mnt/sda1/bios/gba_bios.bin` (this fixes it for the main GBA game list)
- `ROMS/mnt/sda1/bios/gba_bios.bin` (this fixes it for GBA games added to the user `ROMS` folder)
### Save States ### Save States
All of the above emulators support stave sates natively through an interface that is accessed by pressing SELECT + START simultaneously in-game. Four save state slots are provided per-game; the files have the extensions `.sa0`, `.sa1`, `.sa2` and `.sa3` depending on which slot they're for. The extension is appended to the name of the ROM file the save state is for; for example, if the ROM is called `Apotris.gba`, and the save state is for slot 2, then the save state file name will be `Apotris.GBA.sa1`. One weird note is that save states created for ROMs stored in the user `ROMS` folder on the device get their ROM file extension capitalised when a save state is created (as per the previous example with `Apotris`, where `.gba` became `.GBA`); this does _not_ happen with save states created in the other ROM folders. The capitalisation doesn't appear to matter - the SF2000 successfully loads save states with any extension capitalisation in any folder. All of the above emulators support stave sates natively through an interface that is accessed by pressing SELECT + START simultaneously in-game. Four save state slots are provided per-game; the files have the extensions `.sa0`, `.sa1`, `.sa2` and `.sa3` depending on which slot they're for. The extension is appended to the name of the ROM file the save state is for; for example, if the ROM is called `Apotris.gba`, and the save state is for slot 2, then the save state file name will be `Apotris.GBA.sa1`. One weird note is that save states created for ROMs stored in the user `ROMS` folder on the device get their ROM file extension capitalised when a save state is created (as per the previous example with `Apotris`, where `.gba` became `.GBA`); this does _not_ happen with save states created in the other ROM folders. The capitalisation doesn't appear to matter - the SF2000 successfully loads save states with any extension capitalisation in any folder.
@ -560,6 +565,8 @@ All of these are linked above already in their relevant sections, but just in ca
--- ---
## Version History ## Version History
- `20230622 - 1.20`: Added a note to the Game Boy Advance section about the newly discovered `gba_bios.bin` loading bug, and how to work around it (thanks `bnister`!)
- `20230618 - 1.19`: Added a question to the FAQ regarding how to change the main menu shortcuts. - `20230618 - 1.19`: Added a question to the FAQ regarding how to change the main menu shortcuts.
- `20230617 - 1.18`: Added an FAQ. Added a section about the bootloader bug, along with steps for installing `bnister`'s patch. Added a link to `ignatzdraconis`'s Gitlab Repo. Some folks have updated their Discord handles to Discord's new naming convention, and those handles have been updated throughout. - `20230617 - 1.18`: Added an FAQ. Added a section about the bootloader bug, along with steps for installing `bnister`'s patch. Added a link to `ignatzdraconis`'s Gitlab Repo. Some folks have updated their Discord handles to Discord's new naming convention, and those handles have been updated throughout.