I have an old programmable Sharp calculator (Sharp EL-9000 SUPER SCIENTIFIC) which I used extensively back in the day. I would like to dump all the software I wrote, and be able to share it.
I vaguely remember its manual mentioning the existence of a serial cable, but I long lost the book.
Is there an existing toolkit to do back up the software? Is there some specific format or site where I can upload my code to share it, or should I just use GitHub?