KDJ11-A/M8192 identified as PDT11/50 from resorc /a?

Jerome H. Fine jhfinedp3k at compsys.to
Fri Sep 11 09:14:53 CDT 2015


 >Holm Tiffe wrote:

>..have repaired a HH725 Harddisk /TA7245BP was bad since a tantal Elko had
>a short) and booted now RT11 V5.07 with the new now repaired 1/73 CPU.
>
>Resorc /A give the following informations:
>
>.resorc /a
>
>RT-11XB (S) V05.07  
>
>Booted from DL0:RT11XB
>Resident Monitor base is 111774 (37884.)
>USR is set NOSWAP
>TT is set NOQUIET
>Indirect file abort level is ERROR
>Indirect file nesting depth is 3
>
>PDT 11/150 Processor
>FP11 Hardware Floating Point Unit
>Extended Instruction Set (EIS)
>KT11 Memory Management Unit
>Cache Memory
>50 Cycle System Clock
>
>Device I/O time-out support
>Multi-terminal support
>
>Hmm, is that normal that the CPU gets identified as PDT11/150?
>Interestingly it finds an FP11 but the Socket is empty.
>  
>
I suspect that somehow, somewhere you have managed
to include the RESORC.SAV file from V04.00 of RT-11
(which was released in 1980) or at least a version of RT-11
prior to V05.00 (which was released in 1983).

If I remember correctly, that version of RT-11 did not
include support for the PDP-11/73 CPU since I don't
think that any of the PDP-11/73 boards were released
until after 1980.

Furthermore, I just booted a standard distribution of
V05.07 of RT-11 using the standard RT11XM monitor
distributed by Mentec for V05.07 of RT-11.  I ran
using a PDP-11/73 CPU (actually under Ersatz-11)

I then MOUNTed a DSK file which contained the V04.00
RT-11 distribution:

MOUNT  LD0:  DU0:RTV4RK.00/NOWR
RUN  LD0:RESORC  /Z

and the result that you displayed was essentially duplicated,
with about the only difference being the Resident Monitor
base address since RT11XM was being used.

If you type:
RUN  SY:RESORC
and follow the command with 2 <RETURN>s, the version
of RESORC.SAV which is being used will be displayed.
It will probably say:
RESORC  V4.00

If you can somehow find the version of RESORC.SAV
that is distributed with V05.07 of RT-11 and type:
RUN  RESORC.SAV
The information for V05.07 is:
RESORC V05.21

Hopefully, the correct information will be displayed with
the version of RESORC.SAV which was distributed
with V05.07 of RT-11.

In case anyone else who is running RT-11 is reading this,
using RESORC.SAV from V04.00 while running any
version of RT-11 starting with V04.00 will produce the
same problem when a PDP-11/73 is used.  I have not
checked what occurs with earlier versions of RESORC
and RT-11.

>For an M8186 the output is more that what I've expected:
>
>.resorc /a
>
>RT-11XB (S) V05.07  
>
>Booted from DL0:RT11XB
>Resident Monitor base is 111774 (37884.)
>USR is set NOSWAP
>TT is set NOQUIET
>Indirect file abort level is ERROR
>Indirect file nesting depth is 3
>
>PDP 11/23 Processor
>FP11 Hardware Floating Point Unit
>Extended Instruction Set (EIS)
>KT11 Memory Management Unit
>50 Cycle System Clock
>
>Device I/O time-out support
>Multi-terminal support
>
>Regards,
>
>Holm
>
If you have any other questions, please ask.

Jerome Fine


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