[Simh] CI750 tech docs and VAX firmware
Tim Stark
fsword7 at verizon.net
Mon Mar 6 08:39:31 EST 2017
I reviewed HSC50/70 tech docs. Yeah. They are PDP-11 machines. HSC50 uses TU58 and is F11 processor. HSC70 uses floppy drive and is J11 processor.
They uses SDI and STI devices through two Qbus registers with MSCP/TMSCP packets.
I am interested to get copies of floppy and tape images for loading software.
I have not find HSC90 tech docs yet.
Thanks,
Tim
-----Original Message-----
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Anders Magnusson
Sent: Monday, March 6, 2017 7:33 AM
To: Johnny Billquist <bqt at softjar.se>; simh at trailing-edge.com
Subject: Re: [Simh] CI750 tech docs and VAX firmware
Den 2017-03-06 kl. 11:27, skrev Johnny Billquist:
> On 2017-03-06 09:51, Anders Magnusson wrote:
>> Den 2017-03-05 kl. 14:06, skrev Tim Stark:
>>>
>>> Folks,
>>>
>>>
>>>
>>> I discovered CI750 tech docs when I searched for some CPU processors
>>> for VAX emulation. I downloaded and reviewed it. CI emulation can
>>> be implemented for emulator to link to other VAX/Alpha emulators as
>>> VMScluster. Does anyone find CI780 emulation for VAX-11/780 and VAX
>>> 86x0 yet? Also I found HSC 50/70 tech docs but do not have software
>>> at this time.
>>>
>> Hm, there is a small chance that I may have the HSC50 Cronic floppies
>> somewhere, is that what you are thinking about?
>
> Heh. If it's for the HSC50, it will be DECtape II.
> We might still have a set around at Update, but it's been years since
> I saw them, and we don't have any HSC50 anymore. We still have a HSC90
> though, with the floppy.
Oh, of course! Hm, it must be for a 70 (or 90) then. Sorry :-)
-- R
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