Gigatron Hackers

OK I've been staring at the diagram and thinking a lot and I understand it a lot more. That makes me think that I need to think a lot more. Using 32 bit instructions with directly embedded control lines throws the possibilities of instructions completely up in the air. Not only is much more possible...

It's interesting to compare with modifications I was imagining, While I pretty much want to add a bunch of chips, the minimization effort of the Gigatron has built a base where you can branch out from. A even more minimal approach could potentially give a lower base to work from. I only have this ba...

The VGA pixel clock is officially 25.175MHz so using 6.25 * 4 is already a little out. The ideal would presumably be 6.29375MHz. A 6.3MHz clock would be closer. 6.33333MHz is about the same amount out the other way. They might exist as crystals if people are doing things in thirds a bit, I haven't l...

So I mentioned a while back that I wrote a program to try some 4 bit digital to 16 colour RGB that was nicer than CGA's RGBI. I rewrote the program and after a lot of fiddling I came up with a resister arrangement that wasn't too complex and produced a set of colours that I thought were good. https:...

Hi, I saw the Apple I story and fell down the rabbit hole. So I'm fairly new to all this, but I'm halfway through laying out my own variant in a simulator. I'm posting in this thread because I was kept awake by ideas for the video out. I'm a complete novice so I half expect this to be gibberish, but...