Reicast Saving

I cannot get Dreamcast Games to Save to a memcard in Reicast core. I tried booting to Bios and formatting but it does not retain the formatting. Cannot find any solution. Any help would be appreciated.

You might want to make sure the save directory configuration in RetroArch is pointing to a writable area.

Solved; my saves were in a writable area- the things is, my bios directory needed to be a writable area.

Dumb question here (I’m new) How do I boot into BIOS?