You need a Frames Capable browser to view this content.(Click on the animation to stop it) Today is International Amiga Day! Celebrate it by playing some Amiga games, watching some demos, or – if you still have one – pulling your Amiga from whatever hiding place you put it into, dust it off and give it a spin or two. Enjoy!
On this day 10 years ago, Dennis van Weeren made the first recorded commit on his then new project, Minimig (see Changelog here), so this makes today the 10th anniversary of Minimig. The project started as a sort of proof-of-concept, showing that it is possible to re-create Amiga custom chipset in an FPGA. In around three years, Dennis made a fairly complete implementation of the OCS chipset. Amiga community – with history of disappointments behind it –…
So, to continue from Part 1, the rest of additions in Denise. Denise bitplane updates First, of course, the bitplane count needs to be upgraded from ECS’ 6 bitplanes to AGA’s 8 bitplanes, together with everything dependent on it, like collision detection for 8 bitplanes, two additional bitplane output buffer registers, playfield support, etc. Quite a lot of code changes in this step, but not hard to do – basically, I just followed the existing code and…
So now that the first beta version of minimig-AGA for the MiST board is out, I thought I’d write a few words describing how I went about implementing this. In short – it was easier than I expected, but with a few very tricky parts. A little background As you may or may not know, Jakub Bednarski (yaqube) already upgraded the minimig design with AGA capabilities a while ago, but the code was never published,…
