[Simh] Error in DMC11/DMR11 Emulation in RSTS/E 10.1

[Paul Koning]

> On Jan 4, 2016, at 5:09 AM, Mark Pizzolato <Mark at infocomm.com> wrote:
> 
> On Sunday, January 3, 2016 at 5:25 PM, Paul Koning wrote:
>> ...
>> So attach the device in SIMH before boot, and things will work.
> 
> This is a basic requirement of functionality.  Having the DMC/DMR device "ATTACHED" merely means that the desired peer endpoint is "described", not the fact that a connection exists yet.  This is like having the device connected to some sort of Modem/DSU.  The external wires on the DSU don't need to be plugged into anything, but the modem must be present for the network to have the "potential" to work at some time later.
> 
> This category of device isn't like a tape drive or a removable disk.  Dynamically attaching and detaching this device while a system is operating is not a normal activity.  Users should merely provide the appropriate ATTACH command immediately after enabling the device and describing the peer.

Ok, thanks.  So we'll want to document that RSTS requires the attach to have been done before booting (as well as that it has to have the microdiagnostics enabled).

	paul