I’m trying to emulate an Atari 8-bit computer system and I keep getting an error that says I need a real Atari/OS.
I looked it up and found that the Atari800 emulator not only needs the 5200.ROM file as the BIOS for the Atari 5200, but also various other BIOS files for several Atari 8-bit computers.
With this in mind, I put the BIOS files into a preset directory and tried again. Still no luck. What am I doing wrong?