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Cambridge-1 http://anycpu.org/forum/viewtopic.php?f=15&t=630 |
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Author: | monsonite [ Sun Sep 15, 2019 3:17 pm ] |
Post subject: | Cambridge-1 |
Whilst at the Retrocomputer Festival in Cambridge last weekend, I shared a corner of the room with Richard J. Grafton of Arith-Matic. Richard had spent 30 days in August building a 4-bit breadboarded TTL computer he calls the Cambridge-1. It's a neat design, which currently uses an Arduino for program loading - but this is to be replaced later with some more TTL logic. There's some detais on Github here https://arith-matic.com/notebook/4bit-7 ... mputer-cpu and an introductory video here: https://t.co/Y3vSw8jCUs?amp=1 Richard has posted his progress to Twitter under the @arith_matic handle https://twitter.com/arith_matic/status/ ... 7821462530 |
Author: | BigEd [ Sun Sep 15, 2019 3:46 pm ] |
Post subject: | Re: Cambridge-1 |
Nice one! I trust you had a good weekend at the event. I was only recently checking out Arith-Matic's work and there was no CPU at that time, only an ALU. I'd like to post this over on the Retrocomputing Forum - unless you'd like to! |
Author: | monsonite [ Sun Sep 15, 2019 3:52 pm ] |
Post subject: | Re: Cambridge-1 |
Hi Ed, Richard has been burning the midnight oil for about a month to get the Cambridge-1 together in time for last weekend's RC Festival. Using an Arduino to help with the Bring-Up is a neat idea ( and also covered well in Ben Eater's latest video on the 6502 https://www.youtube.com/watch?v=LnzuMJLZRdU ) Richard also told me that the Cambridge-1 is a Bitslice architecture and so it should not be too difficult to extend to 8,12,16 bits. Please share with our friends at Retrocomputing Forum. Cheers, Ken |
Author: | BigEd [ Sun Sep 15, 2019 4:15 pm ] |
Post subject: | Re: Cambridge-1 |
Thanks, shared. This certainly is an interesting machine, and the mission of teaching the lowest levels of computing is a very worthy one. |
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