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

[Mark Pizzolato]

On Sunday, January 3, 2016 at 1:43 PM, Paul Koning wrote:
> > On Jan 2, 2016, at 5:41 PM, Christian Gauger-Cosgrove
> <captainkirk359 at gmail.com> wrote:
> >
> > As the subject line says, there's an issue with the DMC device under
> > RSTS/E 10.1-L.
> >
> > When starting the system, when it does the hardware scan, the
> > following errors are printed on the TTI/TTO console:
> > Device XM2: internal micro-diagnostic failure - device disabled.
> > Device XM3: internal micro-diagnostic failure - device disabled.
> > XM4: is missing ECO's, but will still function.
> > XM1: is missing ECO's, but will still function.
> > XM0: is missing ECO's, but will still function.
> >
> > There are five DMC lines due to testing.
> > DMC0/XM0 and DMC1/XM1 are DMC11, with micro-diagnostics enabled.
> > DMC2/XM2 is a DMR11, with micro-diagnostics enabled.
> > DMC3/XM3 is a DMR11, with micro-diagnostics disabled.
> > DMC4/XM4 is a DMC11, with micro-diagnostics disabled.
> > From that test we can see that the DMR11 does not work under RSTS/E
> > with or without micro-diagnostics; and further that DMC11 simulation
> > works but isn't "up to date" enough for RSTS/E 10.1-L (at least I'm
> > assuming that is what is meant by the "missing ECO's" statement).
> 
> No, that's not what that means.
> 
> It does say that micro diagnostics are required; when those are disabled, the
> device is rejected because of that failure.
> 
> However, it also says that "XM0: is missing ECO's, but will still function."  That
> means the device is enabled, and it should be there and work when you start
> the system.  More precisely, if it doesn't work that would be for a different
> reason.
> 
> >
> > It exhibits this behaviour both when starting up SYSGEN.SIL, and when
> > doing a normal system start-up. The simulator is configured as a
> > UNIBUS machine (11/94 if that matters); trying it with a QBUS machine
> > (11/93)... and SIMH crashes promptly.
> 
> Tried what with QBus?  DMC?  Only a DMV is valid on Qbus.
> 
> Mark, here is the code from the RSTS INIT code that generates the "missing
> ECO's" message.  I'll take a look at why it doesn't like DMR11s.


Thanks for the driver/initialization code!

Can someone provide a RSTS disk image and configuration file so I can satisfy 
what this initialization code is looking for?


Thanks.

- Mark