Front panel switches - what did they do?

[Paul Anderson]

Thanks Lionel,

You just helped me start a new list!

On Thu, May 26, 2016 at 5:44 AM, Lionel Johnson <lionelj at labyrinth.net.au>
wrote:

> On 25/05/2016 5:06 AM, Paul Anderson wrote:
>
>> I used to have a notebook of toggle in programs for the PDP8s and PDP11s,
>> but it seems to be lost forever.
>>
>> Not being a software person it takes me hours to write and debug the
>> simplest routines. Is there a site with a list of toggle in maintenance
>> programs?
>>
>>
>>
>> I used to work on DEC systems of all types, loved the PDP-11, cause you
> could get right into it, not like VAX, which was huge and almost
> incomprehensible. I wrote button-in test programs as needed, below is a
> useful address checker, mostly used on instals, found bad switches giving
> wrong addresses. Used a similar one to trap vector addresses, find the
> wrong ones.
>
>
>
>                                          I/O PAGE ADDRESS LISTER PROGRAM
> -------------------------------
>
>                        1000 012706 001000                      MOV #1000,
> SP
>                        1004 012737 001054 000004               MOV
> #TRAP,@#4
>                        1012 012700 002000                      MOV #2000,R0
>                        1016 010001                             MOV R0,R1
>                        1020 005020                  LOOP:      CLR @(R0)+
>                        1022 020027 006000                      CMP R0,#6000
>                        1026 001374                             BNE LOOP
>                        1030 012700 160000                      MOV
> #160000,R0
>                        1034 005710                  LOOP1:     TST @(R0)
>                        1036 010021                             MOV
> R0,@(R1)+
>                        1040 062700 000002           LOOP2:     ADD #2,R0
>                        1044 020027 177776                      CMP
> R0,#177776
>                        1050 001371                             BNE LOOP1
>                        1052 000000                             HALT
>                        1054 022626                  TRAP:      CMP
> @(R6)+,@(R6)+
>                        1056 000770                             BR LOOP2
>
>
>                        THIS PROGRAM USES TRAP TO 4 ON UNIBUS TIMEOUT TO
> FIND ALL VALID
>                        UNIBUS ADDRESSES ON THE SYSTEM UNDER TEST.
>                        THE LIST OF ADDRESSES WILL BE STORED IN A TABLE
> COMMENCING AT
>                        LOCN 2000.
>                        THERE ARE SOME LARGE BLOCKS OF ADDRESSES WHICH
> SHOULD NOT BE
>                        PRINTED OUT. eg. 165000-165776 173000-173776.
>                        TO IDENTIFY THE ADDRESSES LISTED, SEE THE BACK
> PAGES OF THE
>                        PERIPHERAL HANDBOOK.
>
>                        SAMPLE RESULT:-
>
>                        SOUTHDOWN PRESS 11/24                OAKLEIGH 11/70
>
>                        160200-160376  ???? 160120-160126 DZ11
>                        160770-160776  AD01? 165000-165776 BOOT DIAGS
>                        164200-164376  ???? 170200-170376 U/BUS MAP
>                        165000-165776  BOOT DIAGS 172202-172376 SUPER
> PAR/PDR0-7
>                        170200-170376  U/BUS MAP 172440-172476
> RH70/TM03/TE16
>                        172100         MS11-P CSR 172516        MMR3
>                        172300-172316  KERNEL PDR 173000-173776 BOOT DEVICES
>                        172340-172356  KERNEL PAR 176700-176752 RH70/RP06
>                        172516         MMR3 177546        LINE CLOCK
>                        173000-173776  BOOT DEVICES 177560-177566 CONSOLE
>                        176500-176506  DL11 177570        SWR
>                        176700-176746  EMULEX SC21 177572-177576 MMR0,1,2
>                        177546         KW11-L    177600-177616 USER DATA
> PDR0-7
>                        177560-177566  CONSOLE 177620-177636 USER INS PDR0-7
>                        177572-177576  MMR0,1,2 177640-177656 USER INS
> PAR0-7
>                        177600-177616  USER PDR 177660-177676 USER DATA
> PAR0-7
>                        177640-177656  USER PAR 177740-177752 MEMORY REGS
>                        177734-177736  LMA LO/HI WORD 177760-177776 CPU REGS
>                        177766         CPU ERR REG
>
>
>
>                   11/23 SYSTEM EXAMPLE:-
>                   ---------------------
>
>
>
>                      172300-172316 MEM MAN KERNEL PDR
>                      172340-172356 MEM MAN KERNEL PAR
>                      172516-       MMR3
>                      173000-173776 BOOT DEVICES
>                      176500-176526 DLV11-J (3 PORTS)
>                      177170-177172 RXV21
>                      177546        KWV11-L
>                      177560-177566 DLV11-J (CONSOLE)
>                      177572-177576 MMR0,1,2
>                      177600-177616 MEM MAN USER PDR
>                      177640-177656 MEM MAN USER PAR
>
>
> Lionel.
>
>
>
>
>
>
>
> *
>