[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
_______________________________________________
Simh mailing list
Simh at trailing-edge.com
http://mailman.trailing-edge.com/mailman/listinfo/simh



More information about the Simh mailing list