PlayStation Development Network

I'm doing some reverse engineering, try to figure out how a game works and I've hit a feature that isn't very well documented (at least that I can see).

There are two system calls "GetB0Table" and "GetC0Table". However, I can't figure out what these tables actually relate to. The functions I see these used in seem to relate to memory cards, but I can't figure out their exact purpose.

The return value seems to be of type (u)int**.

Is anyone aware of what is stored in these tables?

This is the relevant code in the PCSXR emulator, but I'm not really sure what it represents or where most the table is initialized: see lines 2240 and 2672 in https://github.com/iCatButler/pcsxr/blo ... /psxbios.c. Lines 2710 and 2713 are also suspicious, but I'm not completely sure what their role is. FWIW, they both encode the instruction "SWC3 0" (according to https://www.cs.cmu.edu/afs/cs/academic/ ... ps-isa.pdf).

If you figure anything else out about this, please let me know.

FWIW, I also noticed that there's always a psxBios_FlushCache call soon after.