I have been trying to emulate GP32 for a while now but I could not get it working. I've tried GeePee32 in a virtual Win XP and although it was working it was very buggy and no sound. I do have the GP32.zip with the bios files but I do not seem to get it to work in MAME (tried OpenEmu with Mame core & MAME OS X). Any help, tips, hints is greatly appreciated!