I placed the "5200.rom" in the bios file, renamed the "asteroid.bin" to "Asteroid.a52" (I also tried naming it "Asteroids.a52" as well) , but it did not work.
I tried ZIP'ing the "5200.rom" into a "5200.zip" file and placed that in the bios file and that did not work. I tried placing the "5200.rom" and "5200.zip" files in the MESS directory (where the "mess.exe" file is located) but that did not work either.
Any ideas?
Does anyone actually have Atari 5200 via M.E.S.S working ... if so how?