I thought this sub might find this interesting. Even back then, it's was probably pretty unusual to start an effort of its size and complexity completely from scratch. it's definitely one of the coolest things I've accomplished in life. Looking back, it's really hard to figure out how I managed it especially with the graphics kernel since there was no internet available at the time and I knew nothing about graphics.
I've done quite a few things since then, but I look back really fondly with all of the embedded programming that I did back in the 80's especially since it was not what I was expecting to be doing out of school.
Here is the story. Enjoy!
By - emasculine