Does an appvar editor exist, that would be able to edit any appvar on the calculator created by another program without editing that other programs source code?

Appvars can be edited by any program you make, but you can store any kind of data to appvars. Appvars are just a a chunk of memory that you do whatever you want to. There is no inherent structure, so unless you know the format of the appvar, there is no way of knowing what each byte represents. If you do know the format, you can make an editor to edit the data. For example, I played Donkey Kong (DK5ION) that saved highscores to an appvar. I unarchived it, opened Calcsys, figured out the format of the highscore list, and edited it. I did the same with Graph3D, to edit the Z= equations.

For example, I played Donkey Kong (DK5ION) that saved highscores to an appvar. I unarchived it, opened Calcsys, figured out the format of the highscore list, and edited it.

Did you mean you cheated ?


But yeah, an "editor" that changes bytes is easy to do, what's not so easy is to change those bytes in a smart way. For example, in KoFiX, you first have a string that says that this appvar is for KoFiX, and if you don't know that, you'll just think "What are those random bytes ? They don't look like notes at all".

Yeah such appvar editor would be great, especially for the color 84+ to edit sprite data directly without having to send your bitmpas to tr1p1ea who then converts it to xLIB color format (the only current way to do it for people who neither have GIMP and Photoshop/ImageStudio)

Not that I encourage using such editor to cheat, though, especially with TI highscore lists around on French forums.