Rich. This is a nice thing. Thanks.
I have one question/wish, though.
I don't know if you were aware of a device called the RM06. This was a
Massbus disk created by Shelby, which was varible size.
It would be a really nice thing to emulate. I can probably reverse
engineer it from the RSX driver, and I don't know which systems ever
supported it. RSX for sure. Possibly also RSTS/E, but beyond that is
more uncertain. Most people and systems had moved on from Massbus before
this drive came out.
But it is a much nicer solution than emulating eight RP06 drives, when
you have some big disk in the backend.
Do you know what speeds this emulated massbus disk can achieve, by the way?
Johnny
On 2017-12-10 09:45, Rich Alderson wrote:
Happy DEC-10 Day!
It is my honor to announce that we at Living Computers: Museum + Labs
are releasing to the computing community our Massbus Disk Emulator
and all the associated software. This device connects via Massbus
cables to the RH10 and RH20 interfaces on KI-10 and KL-10 systems, to
the RH11 interface on KS-10 and small PDP-11 systems (including the
front end 11/40 on the KL-10), and to the RH70 on the PDP-11/70. The
MDE provides up to 8 emulated RP06 or RP07 disks (represented by disk
files in the format used by the SimH emulation of these systems).
We expect that it will also work with the RH780 on the VAX-11/780 and
VAX-11/785 although we have not yet tested it in this configuration.
The original MDE was designed by Keith Perez in 2005, and emulated up
to four RP06 drives connected to a KL-10. The current generation was
a redesign by Bruce Sherry in conjunction with the restoration of our
DECsystem-1070 in 2012, and initially provided eight RP06 drives on
the RH10. It has undergone continual development, with associated
software created for us by Bob Armstrong, and is now being opened up
for the use of the relevant communities.
To this end, we have placed the design files for the hardware and the
source files for the software to interface with it, along with our
library of Universal Peripheral Emulator routines, on public access
repositories at Github. The URLs for these repositories are
https://github.com/livingcomputermuseum/MDE2
https://github.com/livingcomputermuseum/MBS
https://github.com/livingcomputermuseum/UPELIB
These are released under a very liberal license which will allow for
free use of the MDE by any interested party.
Happy Dec-10 Day!
Rich
Richard Alderson, Sr. Systems Engineer
Living Computers: Museum + Labs
2245 1st Avenue S
Seattle, WA 98134
http://www.livingcomputerss.org/
_______________________________________________
Simh mailing list
Simh@trailing-edge.com
http://mailman.trailing-edge.com/mailman/listinfo/simh
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: b...@softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
Simh mailing list
Simh@trailing-edge.com
http://mailman.trailing-edge.com/mailman/listinfo/simh
