MyCPU – Homebrew Computer from Discrete Logic Gates

Re:MyCPU – Homebrew Computer from Discrete Logic Gates by illys on Thursday May 16, 2019 @04:43AM (#19927215)

Amazing! A computer made without microprocessor... or a processor made of TTL circuits.

He has remade a system similar to the core of the great 1970's Xerox Alto / Xerox Star series :-)

I never thought someone would remake a processor this way. I love that kind of madness !

[edit: use the site backup if it fails to load: http://mycpu.thtec.org/www-mycpu-eu/index1.htm ]

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by vhodges on Thursday May 16, 2019 @08:21AM (#19928239)

:) There are many (it's a thing):

https://hackaday.io/projects?tag=CPU (Some are FPGA, most are TTL) Including two risc-v implementations (one seems stalled):

https://hackaday.io/project/18491-worlds-first-32bit-homebre... (No activity for a while now) and https://www.youtube.com/playlist?list=PLEeZWGE3PwbansoxKjjMK...

One I am particularly interested in is the Gigatron:

https://hackaday.io/search?term=Gigatron&category=project%20... (Especially now that there's real IO being hacked in)

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by varjag on Thursday May 16, 2019 @08:37AM (#19928345)

http://www.homebrewcpu.com/ is wire wrap 16 bit computer that in fact serves the web pages and has telnet access.

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by that_jojo on Thursday May 16, 2019 @09:15AM (#19928699)

Bill Buzbee is a goddamn legend

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by mycall on Thursday May 16, 2019 @09:49PM (#19935426)

omg, Homebuilt CPUs WebRing still working.

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by EvanAnderson on Thursday May 16, 2019 @12:46PM (#19930584)

Big Mess o' Wires is another good one: https://www.bigmessowires.com/bmow1/

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Re:MyCPU – Homebrew Computer from Discrete Logic Gates by CrLf on Thursday May 16, 2019 @02:22PM (#19931467)

Walter Belgers and Marcel van Kervinck's Gigatron (https://gigatron.io/) is also interesting. It's spirit is to use only 70's technology to keep the system "learnable" from the ground up, although they sometimes violate this rule for peripherals outside the main system.

Walter gave a talk recently about it: https://www.youtube.com/watch?v=rbaAmnhZAis

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