[HECnet] Towards the Mouth of Madness....

hvlems at zonnet.nl hvlems at zonnet.nl
Wed Jul 13 16:56:10 PDT 2011


Does the emulator come with an OS?
What I actually mean is: it available for hobbyists?
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-----Original Message-----
From: Paul Koning <paul_koning at dell.com>
Sender: owner-hecnet at Update.UU.SE
Date: Wed, 13 Jul 2011 11:13:00 
To: <hecnet at Update.UU.SE>
Reply-To: hecnet at Update.UU.SESubject: Re: [HECnet] Towards the Mouth of Madness....

Yes, 60 bits one's complement, oddball floating point format, 12 bit one's complement I/O processors...

Your memory is quite good.   That's just how it works, in all the various OSs I know.

BTW, there exists an emulator -- DtCyber ("Desktop Cyber").

	paul

On Jul 13, 2011, at 11:08 AM, <hvlems at zonnet.nl> wrote:

A CDC 6000 no less, that's a 60 bit architecture right?
SCOPE (?) is somewhat arcane though. I remember entering an Algol program and then compiled it. Somebody asked a question and having forgotten what I'd done,   tried to compile again. The OS said:
No such file or at end of file. 
The user had to type the REWIND command. The compiler could then read the sourcefile again :-)
------Origineel bericht------
Van: Paul Koning
Afzender: owner-hecnet at Update.UU.SE
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Towards the Mouth of Madness....
Verzonden: 13 juli 2011 16:52


On Jul 13, 2011, at 9:39 AM, <hvlems at zonnet.nl> wrote:

Ah, so that's your specification for an interesting system: weird with DECnet :-)

Apart from the DECnet requirement, if you want weird I don't think you can top a CDC 6000 series machine.   The size can be a bit problematic, I suppose.

My dream (about 10% complete) is to build a replica in an FPGA.   I have the schematics to do it, it's just a whole lot of work...

	paul



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