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Last visit was: Thu May 01, 2025 10:22 pm
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It is currently Thu May 01, 2025 10:22 pm
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NEDONAND - a CPU made from NAND gates
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BigEd
Joined: Wed Jan 09, 2013 6:54 pm
Posts: 1821
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. Using through-hole 74-series parts, and with a nice diode plugboard for a 16 byte ROM, with an open source design and a modular motherboard/daughterboard construction: https://hackaday.io/project/9795-nedona ... -16-testedhttps://hackaday.io/project/9795-nedona ... w-computerSee also http://nedocon.com/   (Can't post a photo of the diode ROM- images are too big.)
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| Wed Apr 06, 2016 4:48 pm |
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Garth
Joined: Tue Dec 11, 2012 8:03 am
Posts: 285
Location: California
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What a great way to make the diode ROM easily reprogrammable!
_________________http://WilsonMinesCo.com/ lots of 6502 resources
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| Wed Apr 06, 2016 8:15 pm |
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BigEd
Joined: Wed Jan 09, 2013 6:54 pm
Posts: 1821
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It is very nice, and it makes it a visual ROM too.
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| Wed Apr 06, 2016 8:21 pm |
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