[Simh] TU-56

Thu Mar 24 18:57:02 EDT 2016

On 24 March 2016 at 17:55, Mark Pizzolato <Mark at infocomm.com> wrote:
> This is not merely a problem with lack of simulation.  The goal of the simh
> simulators is to simulate what was really supported on the original hardware
> that is being simulated.  DEC didn't support TU56 DECtape on any VAX system,
> hence the device isn't included in the VAX simulators...
>
Correct, as should be expected. None of the VAXen supported the
"original" TU55/TU56 DECtape on a TC11; at least in terms of software
support. I assume you'd be able to plug a TC11 into the VAX UNIBUS
adapter, but *why* you would do that is beyond me...

On 24 March 2016 at 19:00, Bill Cunningham <billcun at suddenlink.net> wrote:
> Ok at this page then,
>
> http://iamvirtual.ca/VAX11/VAX-11-software.html
>
> Whatever that putr is it's for DOS. OK I guess it is TU-58 then. Too many
> numbers today. THis looks mostly like VMS but maybe some other things too.
>
Those are TU58 images, which *are* supported.

Enable the TDC device and you should be able to use those tapes in the
correct versions of VMS.

The VAX-11/750 tapes are specific for the VAX-11/750, while the other
TU58 tapes should be sufficiently generic. The 11/730, and 11/750
simulators both support the TDC (TU58) device as well.

Of note though, if you're using the pre-built Windows binaries of
SIMH, the 11/730 and 11/750 simulators are non-functional. The last
Windows build which has them working was the commit d8306093 build
from February 15th (" simh-4.0-Beta--2015-02-15-d8306093.zip").

Regards,
Christian
-- 
Christian M. Gauger-Cosgrove
STCKON08DS0
Contact information available upon request.