Is there any way to prove that a program exists or doesn't exist within another program? I'm thinking about creating a program which functions as a directory for a bunch of different games so that when you select a game it checks to make sure the calculator has the program for that game in its memory. If so, it's executed, if not, a screen pops up saying you don't have that game.
this program will list out the programs in a string. i guess you can search through the string for specific names
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