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2022-03-13 22:58

Hermit

Registered: May 2008
Posts: 209

Anyone interested in homebrew CPU / PC architectures

I write here at CSDb to check out people who are interested in interesting discussions about homebrew CPU / PC design and permacomputing.

The story in short: I've been working on my own architecture since I found out FPGA technology in 2011, it changed a lot meanwhile, there were different concepts and incarnations, now I'm designing a computer that is 20MHz, 8bits, 512x384 resolution with 256 colors (YUV/NCS) for VGA/Composite. Everything, including CPU is designed to be hardware-technology-independent so software written for it will be compatible for many years, no matter what vendors and products disappear suddenly. Flash memory is avoided where possible. More details later...

If you're really interested to go into great discussions, exchanging ideas in this field, I'm looking forward your PM or posts.

And I hope it's not too off-topic. Now it's a topic about C64 people interested in a particular topic, and not totally a topic about C64 itself... Hopefully this is tolerated at the forum.

In fact I don't really understand why I haven't started this topic much earlier, years ago. Well, probably I have to blame real-life issues that came along the way.

While I was checking on Forth I found a project webpage and an author with an interesting project called Collapse OS.
http://collapseos.org

Many interesting, well written topics can be found at this page and lengthy forum-threads are linked as well. I already joined to the mailing list, hoping to see a small community I've been looking for many years...

I think it's an important topic, we might be responsible for saving some part of computing knowledge if things go wrong. I'm not well informed enough to know if/when a collapse might happen, but I'm already motivated by the hope that there will be an alternative platform that I will like to program and use.

Another one of my favourite links to spark some interest:
https://homebrewcpuring.org

From this webring my favourite is TTLCPU from a Hungarian guy (who I could never contact with unfortunately), but there are many other clever/odd/interesting approaches there to make CPUs.

The Hungarian link at the webring doesn't work by now, but it's still hosted at hackaday and github:
https://hackaday.io/project/11703-8-bit-ttl-cpu
https://github.com/szoftveres/ttlcpu

This hackaday CPU is also a very efficient design:
https://hackaday.io/project/161251-1-square-inch-ttl-cpu

have a nice reading, looking forward your posts/PMs
hermit

2022-03-14 18:11

Frantic

Registered: Mar 2003
Posts: 1651

Not my area at all, but it is good to see people explore different directions, so thumbs up for that!

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