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

[Mark Pizzolato]

On Saturday, January 2, 2016 at 2:41 PM, Christian Gauger-Cosgrove 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).
> 
> 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.
> 
> 
> Here's the "show version" output for completeness' sake:
> sim> show version
> PDP-11 simulator V4.0-0 Beta
>         Simulator Framework Capabilities:
>                 32b data
>                 32b addresses
>                 Ethernet Packet transports:PCAP:NAT:UDP
>                 Idle/Throttling support is available
>                 Virtual Hard Disk (VHD) support
>                 RAW disk and CD/DVD ROM support
>                 Asynchronous I/O support
>                 FrontPanel API Version 1
>         Host Platform:
>                 Compiler: Microsoft Visual C++ 15.00.30729.01
>                 Simulator Compiled: Dec 19 2015 at 12:51:02
>                 Memory Access: Little Endian
>                 Memory Pointer Size: 32 bits
>                 Large File (>2GB) support
>                 PCRE RegEx support for EXPECT commands
>                 OS clock resolution: 1ms
>                 Time taken by msleep(1): 1ms
>                 OS: Windows:
> Microsoft Windows [Version 6.1.7601]
>                 Intel64 Family 6 Model 58 Stepping 9, GenuineIntel - x86-AMD64
> 
>         git commit id: ca4a6901

Please create an issue at https://github.com/simh/simh/issues to track and discuss the details of this problem.

Do you have device driver source for the RSTS DMC and DMR device drivers?

Thanks.

- Mark