Honeywell Series 60 (Level 66)/6000 aka DATANET 355/6600 machine language (Charles Anthony)

[Dave Wade]

> -----Original Message-----
> From: cctech [mailto:cctech-bounces at classiccmp.org] On Behalf Of Michael
> Thompson
> Sent: 10 January 2016 15:25
> To: cctech <cctech at classiccmp.org>
> Subject: Re: Honeywell Series 60 (Level 66)/6000 aka DATANET 355/6600
> machine language (Charles Anthony)
> 
> >
> > Date: Fri, 8 Jan 2016 13:40:52 -0800
> > From: Charles Anthony <charles.unix.pro at gmail.com>
> > Subject: Honeywell Series 60 (Level 66)/6000 aka DATANET 355/6600
> >         machine language
> >
> > I am trying to fire up a DN6600 emulator and am encountering some
> > discrepancies between the DD01 documentation and existing software.
> >
> > Anyone remember how to program this beast?
> >
> > -- Charles
> >
> 
> I wish that I kept all of the Honeywell docs that I had. I gave most of what I
> had to the Boston Computer Museum, so it might be a the CHM.
> 
> I maintained GECOS and the front end software on a Level 66, with DN355,
> and 716 front ends. The software modifications to the DN355 were done
> under contract by Honeywell in Bedford, MA. The 355 and 716s were
> replaced by a pair Level 6 front ends. I still have the platter from one of the
> fixed head disks from the 716. If I remember correctly, the 16-bit Level 6
> front ends ran modified microcode to make it 18-bits by using the parity bits.

I don't think so. From what I remember, and it’s a long time ago, our DPS/6 front end ran completely different software. The DN355 ran GERTS or GRTS and the DPS/6 ran DNS...

https://books.google.co.uk/books?id=w3IudMVoEusC&pg=PA1&hl=en#v=onepage&q&f=false


> --
> Michael Thompson


I do remember we had some LSI/11 based RNP(707 perhaps) "look alikes" which would drop their connection. When this happened you go the dreaded "unable to contact GRTS" message....
... some wag added a line to our "message of the day file" which read "who are the GRTS and why are we trying to contact them"...

Dave
G4UGM