I recently acquired an ATR8000 and was able to get it hooked up to my Atari 800 and use it both as an Atari drive controller and to boot into CP/M.
My 800 has a Bit3 80 column card in it, and I understand that the ATR8000 CP/M terminal emulator can support this, but I have no documentation of how to enable 80 column mode when going into CP/M.
Does anyone here have some information of how to do this that they could share with me?