I added an XEX loader to the file manager YASH for the ABBUC-RAF device SIO2USB.
Simply press Shift-Return to start the selected XEX (this will also switch off ATARI BASIC and clear main RAM). Firmware 4.23 or higher is needed, e.g. FW042309.ATR.
If XEX loading stops and the screen color changes, this means:
- red: XEX is corrupt or tries to load in $700-$9ff
- yellow-brown: I/O error
- blue: XEX has returned from its RUN address
In this case you can press RESET to reboot.