Badger6502

EB6502 VGA V3 Working on the V3 of my hobby computer video module. My first module was text mode only SVGA (800x600x2) V2 was 400x300x16.  I was never able to make the V2 stable enough to use. I've moved on to 320x240x16.  My goal for the project is to create a Loderunner appliance. I've been working with an Australian friend who has ported the game to other platforms. His guidance has been crucial to my success thus far. The AppleII version of Loderunner requires 280x192.   As such, I' doing 320x240. Lots of great lessons in porting an AppleII game to the hardware - I think the knowledge will come in handy for porting future games. Once I'm done with Lodrunner, time and energy permitting, maybe I'll give UltimaIV a try. Anyway, the 320x240 has gone through a few iterations.  This is the design that I've settled on (for now).   My process was to put the device together on breadboard, fiddle around until it works, and then write up the schematic.  ...