Hey all!

I'm trying to make a new program, which first installs a GetKeyHook. If you press Y=, the equation editor, I wanna run prgmU, but this doesn't seems to work. When I run this code for the first time, all is ok. But when I press a key which is NOT Y=, it freezes. Why? Any ideas?


Code:


EDIT: I figured out that I need to ldir more bytes, so I changed ld bc, $0019 to ld bc, 100. That doesn't freeze, but prgmU don't run when I press Y=

A few issues that I notice:
1) $8000 is only safe for hooks for a very short time, until the calculator Archives or Unarchives things or runs an App.
2) Why hard-code your addresses like that instead of using labels?
3) varname needs to be relative to $8000 instead of $9D95. You can use .rorg $8000 / .org $8000 before your hook code or use varname - hookstart + $8000.

That is for later care. My first primary goal is to get it working. Problem: the 2 programs seperately works, but not together. I mean,

Code:

works, and

Code:

too, but not both (code in my first post). Why not?

You'll avoid a lot more mistakes using labels. If it's only a few bytes (like the jr) that's more manageable, but you'll be adding and removing code all the time here, so why not just add a label? It'll save you a lot of headaches when you're debugging and realize you just added an extra byte here or there.

Also, are you running the program through a shell such as zStart or DoorsCS? That might cause conflicts. This code works for me (with zStart/Doors turned off):

Code:

Wow, that seems indeed to work. Thanks!
Now a second question: if something set or whatever, when you're editing a BASIC program on-calc? That is, I would like to change the code above, such that it only works when you edit a program, and after running prgmU, that it returns to the editor? Is that possible?

EDIT: it looks like you already did that, but it doesn't seem to work. When I'm at the homescreen, prgmU runs normally, and at the editor, prgmU runs, but doesn't work correctly