8-Bit Homebrew Processor
!retrocomputing
So, this isn't exactly retrocomputing and it looks like it's from four years ago, but I just found it and thought that many here may find it interesting.
This guy built a simple 8-bit CPU out of essentially discrete logic circuits (from what I've see so far, nothing more complex than a 4-bit adder chip) and explained the entire process.
youtube.com/playlist?list=PLowโฆ
Building an 8-bit breadboard computer!
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screwlisp
in reply to Jonathan Lamothe • • •2. The thing is, while rolling back experienced computer performance/degrowthing computing clearly has to happen
I think hand-wired 8 bit computing is an educational rather than practical thing. (Obviously 8 bit AVR MCUs are a practical thing). 32 bit physical lisp machines on fpgas! (Eventually)
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curtosis
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screwlisp
in reply to curtosis • • •Unlike me, you should talk to @amszmidt. What do you think about the existing port/emulation of the 1985 LM-3 #MITCADR to #HDL as a starting point for a modern lisp computer (instead of the scheme things that happen sometimes)? (I've tried and failed to get involved because of excuses. ;_;).
I forgot the LM discussion of Actually Using The Extra Bits Available.
@me @retrocomputing
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curtosis
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Digital Mark ฮป โ๏ธ ๐น ๐
in reply to screwlisp • • •tracykidder.com/the-soul-of-a-โฆ
The Soul of a New Machine by Author Tracy Kidder
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Cian O'Connor
in reply to Digital Mark ฮป โ๏ธ ๐น ๐ • • •God I love that book so much.
Jonathan Lamothe
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AllNewTypeFace
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screwlisp
in reply to AllNewTypeFace • • •Trainguyrom
in reply to AllNewTypeFace • • •I remember reading an article a while back about basically computing using cards which block or allow light to flow as a series of logic gates. Another way to think of it is reinventing the punch card.
kakes
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CanadaPlus
in reply to Jonathan Lamothe • • •Hmm, I can't remember now if I've linked the guy doing his own semiconductor etching in his garage. I definitely have elsewhere, and that's kind of similar.
Just in case: Sam Zeloof
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CanadaPlus
in reply to kalimari • • •American inventor
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