[Simh] Andy Hoffman's VMS 4.x packages

Tim Shoppa tshoppa at gmail.com
Sun Mar 22 16:41:35 EDT 2020


I know that later versions of VAX-11 RSX support PDP-11 emulation
through software emulation of the PDP-11 commands. Even on VAX processors
that don't have PDP-11 hardware emulation.

This PDP-11 software emulation would presumably be missing in earlier
versions of VAX-11 RSX but I remember it being present circa 1986 on
Microvax II (KA630) hardware which would've been 1985/1986, the same era as
the 8200.

Tim.

On Sun, Mar 22, 2020 at 4:10 PM Ray Jewhurst <raywjewhurst at gmail.com> wrote:

> Just a couple of observations and a question about Andy's distros.  First,
> they WILL run on a simulated VAX-11 730 if RAM is set to 5 megabytes.
> Also, on the 730 all lp behaviour is normal.  Now for my question, is my
> intuition right in that the RSX package either won't run or simply be
> useless on the 8200/8250?
>
> Thanks
>
> Ray
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