[Simh] DZ11 vs DZV/DZQ11

[Mark Pizzolato]

On Thursday, April 12, 2018 at 12:25 PM, Johnny Billquist wrote:
> On 2018-04-12 02:41, Mark Pizzolato wrote:
> > On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote:
> >> On 2018-04-10 10:26, Mark Pizzolato wrote:
> >>> On Monday, April 9, 2018 at 11:51 PM, Johnny Billquist wrote:
> >>>> On 2018-04-10 00:25, Mark Pizzolato wrote:
[...]
> > Meanwhile, getting back to the tangential part of this discussion
> > (unique UNIT ID plugs for each drive), the latest RQ code will now
> > allow you to set Unit plug values for each drive on the controller.
> > Unit values can range from
> > 0 thru 65534.  The 65534 value was chosen since the MicroVAX 3900 boot
> > ROM device scan logic (engaged with >>> SHOW DEVICE) will scan for up
> > to
> > 65535 devices (with a Get Unit Status) until the requested answer
> > changes the unit number to 0 in the requested MSCP packet.  If the
> > request packet value isn't changed the user SHOW DEVICE command never
> completes.
> >
> >       sim> SET RQn UNIT=value
> >
> > Default unit plug values are unchanged from how they existed
> > previously
> > (0 thru 3 on VAX for each controller, and 0 thru 15 across all
> > controllers on PDP11).
> 
> Nice. I hope that is also possible with TMSCP.

Well, it wasn't initially and it now is.

- Mark