6.3.0 - Libetro: any Mame is missing "Rewind" in Emulation settings, has it 'OFF' by default

Hello everyone!

I wanted to cheat a bit in an arcade game without Continue option and noticed that 'Rewind' is inactive in retroarch settings.

The game category is MAME and the 'Rewind' support was set to 'Auto' system-wide (Main menu -> Game settings -> Emulation). If I force it there to 'ON' then it gets honored in the MAME category. Still, the per-system settings are missing the corresponding option. There's no 'Rewind' toggle in the 'Emulation' category. See the screenshot attached.

That holds true with any libretro core in the MAME category (including the 'AUTO' emulator setting) except the non-libretro Mame64.

Hello
Just to be sure, you don't have activate rétroachievements for this game/system?

Not sure mame supports rewind...

This is our current list of systems without rewind:
systemNoRewind = { "nds", "3ds", "sega32x", "wii", "gamecube", "gc", "psx", "zxspectrum", "odyssey2", "n64", "dreamcast", "atomiswave", "naomi", "naomi2", "neogeocd", "saturn", "mame", "hbmame", "fbneo", "dos", "scummvm", "psp" };

Hey tartifless! Thanks for such a quick reply! I've just tested it with Libretro:MAME and it indeed does work. It's forceable via Retroarch settings (though not persistent of course) as well as via the Retrobat's Main Menu. I imagine that maybe it's not for every MAME rom? I've tested it in just a couple

Indeed it works only for the mame(current) core, what you can do is open the file retrobat\emulationstation\.emulationstation\es_features.cfg

Then you need to add the following line in the core="mame" emulation section:

Code:

<sharedFeature submenu="EMULATION" group="ADVANCED SETTINGS" value="rewind"/>

It should look like this:

Thanks! That works!