So, I've written a joke program that imitates the homescreen, but outputs Fish for 2+2. This is it:

2→A
ClrHome
While 1
Input "",Str1
If Str1="2+2"
Then
Output(A,13,"FISH")
Disp ""
Else
Disp expr(Str1
End
If A<8
Then
A+2→A
End
End

It works perfectly, except for one critical bug: if you press CLEAR, the line counter for the word FISH isn't updated, and it will display it in the wrong place.

So my question is, is there a way to detect if the homescreen is cleared, or if I can control that? Or is there a better way to display FISH than Output()?

Thanks!

...such a simple solution.

I'd still like to know if it's possible, though.

Ah, that sucks. Thanks!

Not sure if it would help but you could put a getKey in there and check if it is ever equal to forty-five (the key press for the [CLEAR] button) and do stuff then. But other than that I don't think so without Assembly, like Builder said.

Edit:
Nevermind, just understood what was happening. Ya, Assembly I think is your best option. You could ask Xeda to help you write a hex routine for it.