I\'m a teenager who has become very interested in assembly language. I\'m trying to write a small operating system in Intel x86 assembler, and I was wondering how to write direc
For general I/O ports, you have to go through the BIOS, which means interrupts. Many blue moons ago, I used the references from Don Stoner to help writing some real-mode assembly, but I burnt out on it after a few months and forgot most of what I knew.