The boot disk you uploaded does automatically boot me up in 80 column mode to the ATMON prompt. I'm still having the problem of after I boot CP/M of the keyboard being locked up. I get the key clicks but nothing happens on the screen. I know this scenario has been described by others, so hopefully someone who has had this occur will have a solution.
I'll be adding a 360K floppy drive this week to an old DOS PC, so hopefully I will have some luck on making CP/M disk images.
That's too bad that it doesn't work.
You had better luck than I did. Though my ATR worked via SIO2PC on a real 800. I couldn't seem to make an actual disk function. It would get to some sector and retry repeatedly.
I use software 80 column drivers, Omniview XE, DT-80 (thanks to Claus Buccholz), and an odd disk based utility. It's odd because you load the utility then you have to press reset on the ATR8000 and only then does ATRMON appear.
As for make CP/M disks on a PC it's pretty easy to make data disks. I believe I used a utility called 22disk. As for system disks for the ATR8000 I know of no one who has successfully produced disks from a PC that will actually boot. I want to say the boot sectors need to be single density and no motherboards with onboard floppy controllers support it but I'm not really sure that's the reason.
I might be able to find the 22disk defs for the ATR8000. might.
I never did much with CP/M. Think I found Zork. I know loaded ZCPR, an alternate CLI. Turbo BASIC maybe, not related to the Borland products.
For years I tried to find a utility called ATDisk. I found mention of it in I think the DAL ACE catalog (might have been one of the other 'ACEs'). Allegedly it was an Atari disk emulator for CP/M. I wanted to learn if it was related to the intrinsic Atari disk emulation in the ATR8000. Would have also have given me an exuse to seek a dedicated CP/M system.