First boot…. FAIL!

Right… After a few more mistakes, i finally got all the wires connected and was happy i had double checked them all 🙂  Sooo Lets boot it up.  Guess what, I got a black screen 🙁  Oh well time to debug it...

Things dont always go to plan

Well that didnt go to plan… With a few of the things in my head i wanted to test replacing internal roms with external ones.  The idea was simple, i created a very basic rom that just displayed a mode 4 screen on the Sam Coupe.  I stuck the rom on a prototyping...

Video Address Generation

Just a quick post about the idea in my head for the video address generation.  I was looking to have some form of hardware scrolling ability on my system, i felt this was one of the greatest strengths on the Amiga.  Several old computers just use the horizontal and...

Horizontal Blank Timing

Over the years I have spent time looking at computer design and cpu design.  I dream of building my own computer from scratch, not just buying parts and putting a pc together, using simple logic gates from the 74 series and designing it from the ground up. I read many...