Creating a TTY Simulator in Assembly Language on the Vic-20
Channel: TechTinkering
Date: 2013-05-01

Demonstration using the Vicmon machine language monitor to explore the Vic-20 and enter the program in assembly language.
http://techtinkering.com/2013/05/04/creating-a-tty-simulator-in-assembly-language-on-the-vic-20/