Monthly Archives: July 2023


I/O Module for the Southern Cross

Building an I/O Module for the Southern Cross In this section, we’ll be Building an I/O Module for the Southern Cross Computer. The Southern Cross Computer is a Z80 system designed and maintained by Craig Jones. This system is useful for recreational and educational purposes. With this machine, you will Read More »

I/O Module for the Southern Cross

PIC Buttons in Assembly

How to add PIC Buttons in Assembly When adding PIC Buttons in Assembly, we need to be sure to have a port setup for inputs. In this case, I’m using the 16F877A. Usually, the best port to add the buttons are to port B. This is because Port B has Read More »

PIC Buttons in Assembly

Programming the PIC Microcontroller in Assembly

Introduction to Programming the PIC Microcontroller in Assembly The most difficult part about Programming the PIC Microcontroller in Assembly is just getting started. In this post, we’ll just make a light flash. After that, you can research how to read discrete and analog inputs. Eventually, with some practice, you’ll be Read More »

Programming the PIC Microcontroller in Assembly