it does what it says on the tin.

edit: the 13 is broken, but when I go in to edit everything breaks so :\ I'm pretty sure it's because I hooked up the 13 to the bottom left node in the "decoder4display"

edit: I went in to check and that is in fact the issue. I still have no clue wtf is wrong with the "decoder p1", as I changed literally nothing, but apparently I messed up. someone, please take a look at it and see what went wrong bc I really don't have any idea.