[Simh] Issues with VH simulation and 4.3BSD-Quasijarus

Thu Mar 9 13:42:09 EST 2017

On Thu, Mar 9, 2017, at 10:33, Mark Pizzolato wrote:

> You mean DHV, not DVH, right?  DHV is a Qbus variant of some version
> of the DH11 device.  A VAX 780, not having a Qbus, wouldn’t have such
> a device in its configuration.
>  

> The addresses you see in the SHOW CONFIG output are where the
> simulator will respond to I/O space references.  Those addresses are
> determined dynamically based on the set of devices which are enabled
> in the simulator configuration.  The variable presence of DZ’s and
> DH’s in the configuration would cause the DH to be found at different
> addresses.
>  

> If the operating system that is being run (BSD 4.3 in this case) is
> properly configured to look for a DH device at the address which the
> simulated hardware is operating at, then things should work.  Device
> probes when the kernel starts will be visible with this in the
> simulator configuration:
>  

>                 sim> set debug -t STDOUT

>                 sim> set VH DEBUG=REG

>  

> If you’re seeing device probes, then the kernel’s configuration
> matches the simulated hardware.  However, if you see the probes, but
> you DON’T see the kernel recognizing the device, then there may be a
> problem with the simulator.  If that is true, please create an issue
> at https://github.com/simh/simh/issues and I’ll dig into the
> details.

https://github.com/simh/simh/issues/409

Seeing probes but not recognising the device.

>  

> -          Mark

>  

> *From:* Simh [mailto:simh-bounces at trailing-edge.com] *On Behalf Of
> *Clem Cole *Sent:* Thursday, March 9, 2017 10:09 AM *To:* Cory
> Smelosky <b4 at gewt.net> *Cc:* SIMH <simh at trailing-edge.com> *Subject:*
> Re: [Simh] Issues with VH simulation and 4.3BSD-Quasijarus
>  

> It looks that way..., but I need some help from Bob or Mark on VH
> history,   That was developed at DEC during the period I was off
> doing Masscomp/Stellar et al.   During my time earlier time with
> PDP11 and Vaxen,  you used DEC DZ's or DEC DH's or Able DHDM's.   As
> I understand it, DVH was the mid 1980s' redo of the DH to single
> board but identical in SW (i.e. was similar to the Able DHDM) - but I
> never saw one - so I don't know what the default addresses, iqr's etc
> are.  I am assuming you are defaulting same which means they are what
> DEC used.
>  

> BSD 4.3 would have been using Able DHDM's so those are the original
> addresses of the DEC DH from the PDP-11.
>  

> So my question what were the default addresses for the DVH and then
> from a simulator stand point, and if different, what happens if you
> configure them like the original DH11?
>  

> Clem

>  

> On Wed, Mar 8, 2017 at 11:49 PM, Cory Smelosky <b4 at gewt.net> wrote:
>> All,
>>
>> Seems 4.3BSD isn't seeing a DH-11 at all:
>>
>> 4.3 BSD Quasijarus UNIX #0: Sun Mar  7 12:42:05 PST 2004
>>   root at ucbvax:/usr/src/sys/GENERIC real mem  = 67108864 SYSPTSIZE
>>   limits number of buffers to 18 avail mem = 65271808 using 18
>>   buffers containing 147456 bytes of memory VAX 11/780, serial#
>>   1234(0), hardware ECO level 7(112) mcr0 (el) at tr1 mcr1 (el) at
>>   tr2 uba0 at tr3 tmscp0 at uba0 csr 174500 vec 774, ipl 15 tms0 at
>>   tmscp0 slave 0 tms1 at tmscp0 slave 1 uda0 at uba0 csr 172150 vec
>>   770, ipl 15 uda0: version 3 model 6 uda0: DMA burst size set to 4
>>   ra0 at uda0 slave 0: ra92, size = 2940951 sectors Changing root
>>   device to ra0a
>>
>> SHOW CONFIGURATION: VAX 11/780 simulator configuration
>>
>> CPU     idle=VMS, idle enabled, model=VAX 11/780        64MB, HALT to
>> SIMH TLB     2 units  TLB0    8192W  TLB1    8192W SBI MCTL0
>> nexus=1, address=20002000 MCTL1   nexus=2, address=20004000 UBA
>> nexus=3, address=20006000, autoconfiguration enabled MBA0    disabled
>> MBA1    disabled TODR        12B TMR TTI        7b TTO        7b CS
>> 256KB, not attached, write enabled TC      disabled TDC     disabled
>> DZ      disabled VH      address=2013E120-2013E15F*, vector=C0-DC*,
>> BR4, lines=64, 4 units  VH0     attached to 8070, DHU mode, Modem
>> current connections  VH1     DHU mode  VH2     DHU mode  VH3     DHU
>> mode CR      disabled LPT     disabled RP      disabled RL
>> disabled HK      disabled RK      disabled RQ      address=2013F468-
>> 2013F46B, vector=1F8*, BR5, UDA50, 4 units  RQ0     1505MB, attached
>> to ucbvax-ra92-root.dsk, write enabled        RD54, autosize, SIMH
>> format RQB     disabled RQC     disabled RQD     disabled RY      address=2013FE78-
>> 2013FE7B, vector=B4, BR5, 2 units  RY0     512KB, not attached, write
>> enabled        double density  RY1     512KB, not attached, write
>> enabled        double density TU      disabled TS      disabled TQ
>> TU81 (180MB), address=2013F940-2013F943, vector=1FC*, BR5, 4 units
>> TQ0     not attached, write enabled, SIMH format
>> capacity=188MB  TQ1     not attached, write enabled, SIMH format
>> capacity=188MB  TQ2     not attached, write enabled, SIMH format
>> capacity=188MB  TQ3     not attached, write enabled, SIMH format
>> capacity=188MB XU      disabled XUB     disabled DMC     disabled
>>
>> VAX 11/780 simulator V4.0-0 Beta        Simulator Framework
>> Capabilities:                64b data                64b addresses
>> Threaded Ethernet Packet transports:PCAP:TAP:NAT:UDP
>> Idle/Throttling support is available                Virtual Hard Disk
>> (VHD) support                Asynchronous I/O support
>> Asynchronous Clock support                FrontPanel API Version 4
>> Host Platform:                Compiler: GCC 4.2.1 Compatible Apple
>> LLVM 8.0.0                (clang-800.0.42.1)                Simulator
>> Compiled as C arch: x64 (Release Build) on Mar                 8 2017
>> at 19:55:19                Memory Access: Little Endian
>> Memory Pointer Size: 64 bits                Large File (>2GB) support
>> SDL Video support: No Video Support                PCRE RegEx support
>> for EXPECT commands                OS clock resolution: 1ms
>> Time taken by msleep(1): 1ms                OS: Darwin maelona.local
>> 16.4.0 Darwin Kernel Version
>>                 16.4.: Thu Dec 22 22:53:21 PST 2016; root:xnu-
>>                      3789.41.3~3/RELEASE_X86_64 x86_64 git commit id:
>>                      b41d10f1
>>
>> Excerpt from kernel config: device          dhu0    at uba? csr
>> 0160440             vector dhurint dhuxint
>>
>> Is it a config error?
>>
>> --
>>   Cory Smelosky b4 at gewt.net
>> _______________________________________________
>> Simh mailing list Simh at trailing-edge.com
>> http://mailman.trailing-edge.com/mailman/listinfo/simh
>  

--

  Cory Smelosky

  b4 at gewt.net

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20170309/9f17b3a3/attachment-0001.html>