How about this update:
It was a lot of work, but I'm happy with the result.

#7
Added, 600XL (16k) support.
Added, 400/800 (8k modules, upto 48k) support.
Added, 1200XL rev.10 support.
Added, 8k cartridges from flash support.
(Atari Basic Rev.C / Assembler editor / Altirra Basic)
Changed, (c) mr.atari 2018
Changed, upgraded to include latest shipping firmware.
Tested on Altirra 3.00 and real hardware "600XL", "800XL" and "800XL in 48k 400/800 configuration".
For as I can see now, it does the trick.
If you find issues, please be so kind and drop me a pm or email.
To work on the 400/800, you need to change the cartridge-slot internally.
MyIDE-][ does not work without the PHI2-signal.
Pin "S" has RAS connected and needs PHI2
Its an easy fix, see here:
https://www.wudsn.com/index.php/product ... ri-800-fix