I tried the 8pcse branch. It works pretty well; most apps that don't do weird things to the display work. However, micros froze on entry & did weird things on exit (apparently permanently corrupting the state save file, even though I didn't save it). To get it to not freeze on entry, I implemented port 02. To get it to behave on exit, I implemented port 24. I didn't look into why the state file was getting corrupted.
Thank you for this report and the patch ;)
We will handle this soon.
Best regards.
Thanks. I've applied this patch and done the same for port 2 on the 83+SE/84+/84+SE as well.