Upgrading my BenEater inspired video card
Making the card useful Last time I wrote about my video card, which was mostly the same as the one BenEater built in his excellent video series. Over the holiday break in 2020, I wrote a little Nintendo Gameboy emulator for fun. Now seeing how the Gameboy worked, I was amazed by was how much they could do graphically with such restrictive hardware limitations - and it got me thinking: could I apply some of the same principles to make my video card actually useful? The plan The main problems with the existing card lie with the memory. There isn't enough, and it isn't fast enough. Switching out the EEPROM for RAM would not only fix the black lines caused by slow access time, but would also allow me to go for a larger amount of memory, since parallel access EEPROM is only available (as far as I know) up to 32kb (256k-bit). I would also be able to eliminate the repetition on the y-axis, and increase the colour depth to 8 bit (256 colours), with next to no changes in the ov...