zlacker

>>evakho+(OP)
> I like the Raspberry Pi RP2040 a lot. It's relatively cheap (around $1 USD) and has tons of on-board RAM - 264 KB in fact! It also has what is called Programmable IO, or PIO.

I wonder how benchmarks would compare between the RP2040 and, say, a Z80.

>>zahlma+4h
It would destroy the Z80. It's a 32bit, dual core CPU running at 133MHz. Even single cored it'll thrash a Z80. Heck, I bet you could create a drop-in replacement board for the Z80 using an RP2040.

>>burnte+rk
Note it was possible to use a Z80 to function as a display controller, people used to do it back in the day...

https://archive.org/details/Cheap_Video_Cookbook_Don_Lancast...

>>PaulHo+dv
The Galaksija computer used it's Z80 to help generate the video signal. I'm not sure how its implementation compares to your link.

https://en.wikipedia.org/wiki/Galaksija_(computer)

https://media.ccc.de/v/29c3-5178-en-the_ultimate_galaksija_t...