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EDSAC core

Posted: Mon May 25, 2020 11:28 am
by hrvoje
Hi guys!

I don't know if all the devs have migrated to the new forum yet. Made another core for MiSTer, a 1949 computer called EDSAC and it can play the one of the first preserved computer games ever - tic tac toe. Check out the video:

https://www.youtube.com/watch?v=zl7O8vgFv3M

As it is an old, but fully functional computer, I suggest to merge it to main core/computer list. All in favor say aye.

Re: EDSAC core

Posted: Mon May 25, 2020 5:07 pm
by LamerDeluxe
Awesome! I'm all for MiSTer as a computer museum. I mean "Aye!".

Re: EDSAC core

Posted: Mon May 25, 2020 5:49 pm
by Reed_Solomon
Electronic delay storage automatic computer (EDSAC) was an early British computer. Inspired by John von Neumann's seminal First Draft of a Report on the EDVAC, the machine was constructed by Maurice Wilkes and his team at the University of Cambridge Mathematical Laboratory in England. EDSAC was the second electronic digital stored-program computer to go into regular service. Later the project was supported by J. Lyons & Co. Ltd., a British firm, who were rewarded with the first commercially applied computer, LEO I, based on the EDSAC design. Work on EDSAC started during 1947, and it ran its first programs on 6 May 1949, when it calculated a table of squares and a list of prime numbers. EDSAC 1 was finally shut down on 11 July 1958, having been superseded by EDSAC 2, which remained in use until 1965.

Interesting. Fascinating to have these old computers as working museum pieces on MiSTer!

Re: EDSAC core

Posted: Mon May 25, 2020 5:53 pm
by brunosilva
my point of view is that any machine for mister that is "mister compliant" in his code, should be merged.

Re: EDSAC core

Posted: Mon May 25, 2020 10:05 pm
by Hackshed_Carl
I'd love to see this added as a main core.
While I do enjoy gaming on the MiSTer, my main interest is retro computing and getting to play with all the systems I either grew up with or would normally never get the chance to play with.
Aye from me sir

Re: EDSAC core

Posted: Wed May 27, 2020 12:52 am
by Moondandy
Do we know what is holding back this being added into Main?

Re: EDSAC core

Posted: Wed May 27, 2020 6:09 am
by hrvoje
Moondandy wrote: Wed May 27, 2020 12:52 am Do we know what is holding back this being added into Main?
Nothing so far, I just wanted to ask what people thought of the idea. :)

Re: EDSAC core

Posted: Wed May 27, 2020 7:03 am
by ron
Thank You very much. A piece of History preserved on fpga. Nice !

Re: EDSAC core

Posted: Wed May 27, 2020 10:04 am
by Moondandy
Would be great to get this added into Main, is a brilliant preservation project and would be a really nice addition. Someone please make it so.

Re: EDSAC core

Posted: Thu May 28, 2020 12:25 pm
by retrorepair
Absolutely agree, MISTer is a unique platform that can only benefit from cores like this.

Re: EDSAC core

Posted: Thu May 28, 2020 2:48 pm
by Moondandy
What needs to happen for it to be added to Main? Does the developer need to merge it and Sorg approve?

Re: EDSAC core

Posted: Thu May 28, 2020 5:44 pm
by reminon
I feel like all mister cores should be introduced in this way. With kickass trailers. Haha

Re: EDSAC core

Posted: Fri May 29, 2020 7:24 am
by lroby74
WOW! It would be wonderfull core! Like PDPs and other great historical computers!!

Re: EDSAC core

Posted: Sat May 30, 2020 9:31 am
by hrvoje
Since the opinion seems to be in favor, I added the core to the main computers list.

Have fun, stay healthy and safe!

Re: EDSAC core

Posted: Sat May 30, 2020 10:51 am
by NML32
Thank you

Re: EDSAC core

Posted: Mon Jun 01, 2020 3:41 am
by WolfgangBlack
hrvoje wrote: Wed May 27, 2020 6:09 am Nothing so far, I just wanted to ask what people thought of the idea. :)
Everyone welcomes your cores, hrvoje.
The more old big iron the better and I bet it is a blast coding them too!

Re: EDSAC core

Posted: Mon Jun 01, 2020 5:15 am
by LeftEmpty
I'll renew here what I wrote on the youtube page: what a wonderful little read that readme was, great work, sir!

Re: EDSAC core

Posted: Mon Jun 01, 2020 5:39 am
by ericgus09
Oh I love these really old machines.. looking forward to playing with it ..

Re: EDSAC core

Posted: Mon Jun 01, 2020 6:49 am
by hrvoje
LeftEmpty wrote: Mon Jun 01, 2020 5:15 am I'll renew here what I wrote on the youtube page: what a wonderful little read that readme was, great work, sir!
Thank you so much!

I got a few private messages, but am unable to respond because the Forum won't let me so to the folks who sent them - I'm not being rude and ignoring you! :)

Cheers!

Re: EDSAC core

Posted: Mon Jun 01, 2020 9:04 am
by Hackshed_Carl
I haven't yet had the chance to play with this machine but I've just looked at the project page and was blown away by the detail you've added.
THIS is an amazing example of great supporting documentation for a core.

Well done sir!! I look forward to spending some time with your creation.

Thanks for all the effort you put in to it

Re: EDSAC core

Posted: Mon Jun 01, 2020 9:14 am
by James-F
Preservation in HDL at its finest !
Thank you hrvoje !

Re: EDSAC core

Posted: Mon Jun 01, 2020 10:09 am
by Vic20-Ian
This is a fantastic core.

I have not used the PDP for a few weeks - does it have Teletype sound too?

Re: EDSAC core

Posted: Mon Jun 01, 2020 10:18 am
by LFT
That's amazing! Congratulation !!!

Re: EDSAC core

Posted: Mon Jun 01, 2020 5:57 pm
by Moondandy
Are you planning to make any more cores hrvoje?

Re: EDSAC core

Posted: Mon Jun 01, 2020 6:25 pm
by hrvoje
Moondandy wrote: Mon Jun 01, 2020 5:57 pm Are you planning to make any more cores hrvoje?
Thanks for the kind words everybody! Very likely, when I find time and ideas that are doable :) If the virus thing lasts, MiSTer will profit :)

Re: EDSAC core

Posted: Mon Jun 01, 2020 8:09 pm
by NegSol
Great stuff - thanks! :mrgreen:

Re: EDSAC core

Posted: Mon Jun 01, 2020 9:19 pm
by WolfgangBlack
hrvoje wrote: Mon Jun 01, 2020 6:25 pmThanks for the kind words everybody! Very likely, when I find time and ideas that are doable :) If the virus thing lasts, MiSTer will profit :)
How about some other PDP machines?
There are no emulators out there for the elusive and very rare PDP-2!
But seriously, the PDP-8, 10, and 11 are doable and there's FPGA code out there for all of those.

Re: EDSAC core

Posted: Tue Jun 02, 2020 3:40 pm
by Vic20-Ian
LEO would get my vote as the first UK commercial computer based on EDSAC

My Great Uncle talked to me about working on drawings and hand wired boards for LEO like those pictured.

https://en.wikipedia.org/wiki/LEO_(computer)