There seem to be a lot of people on the internet looking for help running a near procedure in assembly
language that converts an ASCII digit!
Is this some sort of exam question or something? What are the reasons it's all over the internet?
Anyway, my research has led me to a couple of answers:
The first was on another Q&A site.
Another answer lead me to a PDF entitled: Lessons In Electric Circuits
It actually looks like exactly what you need to read.. It's quite indepth, but you can find it here: