IT - Virtualization - DEC VMS 1.0 on VAX 11/780 on SimH for Windows 10 x64

Introduction

Host

Generic Intel Core i7 128GB Windows 10
Windows 10
cygwin

Virtualization

SimH 3.12 <== Not working anymore
SimH 4.0 <== Not working anymore
SimH 4.1

Guest

DEC VAX-11/780

CPU: KA780 @ 5MHz
Memory: Up to 128MB (I can only make it work with 64MB)

Pending

I still need to do some work to fix the error related to RegEx support.
SET CPU 128M hangs the guest at boot.

References

https://afberendsen.blogspot.com/2023/02/it-virtualization-simh.html
https://gunkies.org/wiki/Installing_VMS_V1.0_on_SIMH
https://formulae.brew.sh/formula/simh
http://simh.trailing-edge.com/pdf/pdp11_doc.pdf

Steps

Install Cygwin
Install simh 4.x from here. This is a fork project from the original emulator.

If this is the first time, make a local copy of the simulator

$ cd /cygdrive/m/Emulators/SimH/mirror
$ git config --global http.sslverify "false"
$ git clone https://github.com/open-simh/simh.git
Cloning into 'simh'...
remote: Enumerating objects: 35175, done.
remote: Counting objects: 100% (104/104), done.
remote: Compressing objects: 100% (66/66), done.
remote: Total 35175 (delta 46), reused 86 (delta 38), pack-reused 35071
Receiving objects: 100% (35175/35175), 78.77 MiB | 7.43 MiB/s, done.
Resolving deltas: 100% (27238/27238), done.
Updating files: 100% (1580/1580), done.

Otherwise, update your local copy

$ ( cd simh && git fetch --all -v )
POST git-upload-pack (155 bytes)
From https://github.com/open-simh/simh
 = [up to date]        master                 -> origin/master
 = [up to date]        Alpha-CPU              -> origin/Alpha-CPU
 = [up to date]        AsyncTmxr              -> origin/AsyncTmxr
 = [up to date]        AutoConfigure          -> origin/AutoConfigure
 = [up to date]        Bryan-HP-Current       -> origin/Bryan-HP-Current
 = [up to date]        BufferedConsole        -> origin/BufferedConsole
 = [up to date]        ControlFlow            -> origin/ControlFlow
 = [up to date]        Extra-VAXen            -> origin/Extra-VAXen
 = [up to date]        FastAsynchIO           -> origin/FastAsynchIO
 = [up to date]        HP2100Extensions       -> origin/HP2100Extensions
 = [up to date]        KDP                    -> origin/KDP
 = [up to date]        SerialMux              -> origin/SerialMux
 = [up to date]        Supnik-Current         -> origin/Supnik-Current
 = [up to date]        VAX-11-BootBlock-Fixup -> origin/VAX-11-BootBlock-Fixup
 = [up to date]        simtools               -> origin/simtools
 = [up to date]        v3.9-0-rc1             -> origin/v3.9-0-rc1
 = [up to date]        vms-pcap               -> origin/vms-pcap

Create the simulator machines

$ ( cd simh && make vax780 )
lib paths are: /usr/lib ../windows-build/winpcap/WpdPack/Lib /lib/ /usr/lib/
include paths are:  /usr/lib/gcc/x86_64-pc-cygwin/11/include /usr/include /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/../include/w32api ../windows-build/winpcap/WpdPack/Include
using libm: /usr/lib/libm.a
using librt: /usr/lib/librt.a
using libpthread: /usr/lib/libpthread.a /usr/include/pthread.h
using semaphore: /usr/include/semaphore.h
using libdl: /usr/lib/libdl.a /usr/include/dlfcn.h
using libedit: /usr/include/editline/readline.h
using mman: /usr/include/sys/mman.h
*** Warning ***
*** Warning *** vax780 Simulator is being built WITHOUT
*** Warning *** libpcap networking support
*** Warning ***
*** Warning *** To build simulator(s) with libpcap networking support you
*** Warning *** should read 0readme_ethernet.txt and follow the instructions
*** Warning *** regarding the needed libpcap development components for your
*** Warning *** cygwin platform
*** Warning ***
*** Warning ***
*** Warning *** vax780 Simulator is being built WITHOUT LAN networking support
*** Warning ***
*** Warning *** To build simulator(s) with networking support you should read
*** Warning *** 0readme_ethernet.txt and follow the instructions regarding the
*** Warning *** needed libpcap components for your cygwin platform
*** Warning ***
***
*** vax780 Simulator being built with:
*** - compiler optimizations and no debugging support. GCC Version: 11.3.0.
*** - WITHOUT Local LAN networking support.
*** - Local LAN packet transports: NAT(SLiRP)
*** - Per simulator tests will be run.
***
*** git commit id is 4e159a04ed6291509b685dc06f620389b3373cce.
*** git commit time is 2023-01-04T13:22:12-0700.
***
gcc -std=gnu99 -U__STRICT_ANSI__  -O2 -finline-functions -fgcse-after-reload -fpredictive-commoning -fipa-cp-clone -fno-unsafe-loop-optimizations -fno-strict-overflow -DSIM_GIT_COMMIT_ID=4e159a04ed6291509b685dc06f620389b3373cce -DSIM_GIT_COMMIT_TIME=2023-01-04T13:22:12-0700  -DSIM_COMPILER="GCC Version: 11.3.0" -DSIM_BUILD_TOOL=simh-makefile -I . -Werror -D_GNU_SOURCE -DUSE_READER_THREAD -DSIM_ASYNCH_IO  -DHAVE_SEMAPHORE -DHAVE_SYS_IOCTL -DSIM_HAVE_DLOPEN=a -DHAVE_EDITLINE -DHAVE_UTIME -DHAVE_GLOB -DHAVE_SHM_OPEN  ./VAX/vax_cpu.c ./VAX/vax_cpu1.c ./VAX/vax_fpa.c ./VAX/vax_cis.c ./VAX/vax_octa.c  ./VAX/vax_cmode.c ./VAX/vax_mmu.c ./VAX/vax_sys.c  ./VAX/vax_syscm.c ./VAX/vax780_stddev.c ./VAX/vax780_sbi.c ./VAX/vax780_mem.c ./VAX/vax780_uba.c ./VAX/vax7x0_mba.c ./VAX/vax780_fload.c ./VAX/vax780_syslist.c ./PDP11/pdp11_rl.c ./PDP11/pdp11_rq.c ./PDP11/pdp11_ts.c ./PDP11/pdp11_dz.c ./PDP11/pdp11_lp.c ./PDP11/pdp11_tq.c ./PDP11/pdp11_xu.c ./PDP11/pdp11_ry.c ./PDP11/pdp11_cr.c ./PDP11/pdp11_rp.c ./PDP11/pdp11_tu.c ./PDP11/pdp11_hk.c ./PDP11/pdp11_vh.c ./PDP11/pdp11_dmc.c ./PDP11/pdp11_dup.c ./PDP11/pdp11_td.c ./PDP11/pdp11_tc.c ./PDP11/pdp11_rk.c ./PDP11/pdp11_io_lib.c ./PDP11/pdp11_ch.c ./scp.c ./sim_console.c ./sim_fio.c ./sim_timer.c ./sim_sock.c ./sim_tmxr.c ./sim_ether.c ./sim_tape.c ./sim_disk.c ./sim_serial.c ./sim_video.c ./sim_imd.c ./sim_card.c -DVM_VAX -DVAX_780 -DUSE_INT64 -DUSE_ADDR64 -I ./VAX -I ./PDP11 -Islirp -Islirp_glue -Islirp_glue/qemu -DHAVE_SLIRP_NETWORK -DUSE_SIMH_SLIRP_DEBUG slirp/*.c slirp_glue/*.c -DUSE_NETWORK -o BIN/vax780 -lm -lrt -lpthread -ldl -ledit
BIN/vax780 RegisterSanityCheck /cygdrive/m/Emulators/SimH/mirror/simh/VAX/tests/vax-diag_test.ini </dev/null
 Running internal register sanity checks on VAX 11/780 simulator.
*** Good Registers in VAX 11/780 simulator.

VAX 11/780 simulator Open SIMH V4.1-0 Current        git commit id: 4e159a04
Running Hardware Core Test (EVKAA)

*** PASSED - VAX 11/780 Hardware Core Instruction test EVKAA


Starting VAX Diagnostic Supervisor

Missing Regular Expression support - skipping EVKAB test

Prepare data directory

$ mkdir /cygdrive/m/Emulators/SimH/guests/vax-11-780_vms-1.0
$ mkdir /cygdrive/m/Emulators/SimH/guests/by-plaform/vax-11-780
$ mkdir /cygdrive/m/Emulators/SimH/guests/by-os/vms-1.0
$ ln -s ../../vax-11-780_vms-1.0 /cygdrive/m/Emulators/SimH/guests/by-os/vms-1.0/vax-11-780
$ ln -s ../../vax-11-780_vms-1.0 /cygdrive/m/Emulators/SimH/guests/by-plaform/vax-11-780/vms-1.0

The simulator program is available in the BIN directory from the compiled git repository. To make life easier, the best is to create a link to the program. I can create a link into /usr/bin or into the guest directory. I will go with the later.

$ ln -s ../../mirror/simh/BIN/vax780.exe /cygdrive/m/Emulators/SimH/guests/vax-11-780_vms-1.0/vax780-4.1.exe
$ ls -laF vax780-4.1.exe
lrwxrwxrwx 1 afberendsen None 29 Feb 13 23:26 vax780.exe -> ../../mirror/simh/BIN/vax780-4.1.exe*

Get a VMS V1.0 RK07 disk image from here (backup), unzip and put it in into the directory where your guest directory is.

$ 7z x VAX-VMS_V1.0.RK7.zip

7-Zip [64] 15.14 : Copyright (c) 1999-2015 Igor Pavlov : 2015-12-31
p7zip Version 15.14.1 (locale=en_GB.UTF-8,Utf16=on,HugeFiles=on,64 bits,16 CPUs Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz (A0655),ASM,AES-NI)

Scanning the drive for archives:
1 file, 1912510 bytes (1868 KiB)

Extracting archive: VAX-VMS_V1.0.RK7.zip
--
Path = VAX-VMS_V1.0.RK7.zip
Type = zip
Physical Size = 1912510

Everything is Ok

Size:       27540992
Compressed: 1912510

Create vax780.ini file. This .ini file will not work with the "classical" SimH. As a note, you can have multiple .ini files.

; ================================================
; vax780.ini
; ================================================
;
; Small Size 16 User System made of:
; - 64M bytes of memory
; - 16 DZ11 terminal lines
; - 2 RK07 disk drives
; - line printer
; - TE16 magnetic tape unit
; The tape unit is non-standard in small systems,
; but very useful e.g. to install more software

SET QUIET

SET CPU 64M
SET THROTTLE 1M
;SET CPU IDLE=VMS

SET CONSOLE LOG=VMS010-01.LOG

ATT CS CONSOLE.RX1

SET DZ LINES=16
ATT DZ 6666

SET LPT ENA
ATT LPT printer.txt

SET RP DIS

SET RL DIS

SET HK0 RK07
ATT HK0 VAX-VMS_V1.0.RK7

SET HK1 RK07
ATT HK1 DATA000.RK7

SET HK2 DIS
SET HK3 DIS
SET HK4 DIS
SET HK5 DIS
SET HK6 DIS
SET HK7 DIS

SET RQ DIS
SET RY DIS
SET TQ DIS
SET TS DIS

SET TU ENA
SET TU0 TE16             ; MTA0:

SET TU1 DIS
SET TU2 DIS
SET TU3 DIS
SET TU4 DIS
SET TU5 DIS
SET TU6 DIS
SET TU7 DIS

BOOT HK0/R5:1
;BOOT HK0

VMS setup VMS is already loaded into the provided virtual disk (see above). Next step is the initial run to set-up some things. It is important to note that the initial system boot is from the system disk but into a set-up option (HK0/R5:1). This will change after the set-up is done.

Boot your system and set system behaviour. Since it is the first time you are booting the system. the DATA000.RK7 will be created.

$ ./vax780.exe

VAX 11/780 simulator Open SIMH V4.1-0 Current        git commit id: 4e159a04
Overwrite last track? [N]

SYSBOOT>  USE 16USER.PAR

SYSBOOT>  CONTINUE

Continue booting and provide current date/time

SYSBOOT>  CONTINUE


  VAX/VMS Version 1.00 21-AUG-1978 15:54


PLEASE ENTER DATE AND TIME (DD-MMM-YYYY  HH:MM)  13-FEB-2023 23:32

$ !
$ ! VAX/VMS system startup - Release 1
$ !
$ SHOW TIME
  13-FEB-2023 23:32:06
$ SET NOVERIFY
%MOUNT-I-MOUNTED, CONSOLE      mounted on _DXA1:
  Login quotas - Interactive limit=64, Current interactive value=0
  SYSTEM       job terminated at 13-FEB-2023 23:32:07.89

  Accounting information:
  Buffered I/O count:          142      Peak working set size:    98
  Direct I/O count:             37      Peak virtual size:       111
  Page faults:                 292      Mounted volumes:           1
  Elapsed CPU time:     0 00:00:00.84   Elapsed time:     0 00:00:02.17

Authenticate for the first time. Press ENTER to get the log-in prompt. Use SYSTEM as user and MANAGER as password. You should receive the system prompt.

Username: SYSTEM
Password:
        Welcome to VAX/VMS Version 1.00
$ dir


DIRECTORY DM0:[SYSMGR]
13-FEB-23 23:38

ACCOUNTNG.DAT;1     1.         13-FEB-23 23:32
FORMSTYPE.DAT;1     2.         21-AUG-78 15:54
OPERATOR.LOG;1      1.         13-FEB-23 23:32
SYSHUTDWN.COM;1     0.         21-AUG-78 15:54
SYSTARTUP.COM;1     0.         21-AUG-78 15:54

TOTAL OF 4./112. BLOCKS IN 5. FILES



$

Shutdown the system.
- You will be asked for the shutdown delay in minutes (you can specify 0 minutes for an immediate shutdown).
- Furthermore, you can give an optional reason for the shutdown to be displayed at the terminals of the users on your system (just press ENTER to skip).
- For VMS V1.0 it is expected behavior to get a FATAL BUG CHECK at the end of the shutdown.

$ @SYS$SYSTEM:SHUTDOWN
    System shutdown command procedure.
  13-FEB-2023 23:39:08
HOW MANY MINUTES UNTIL SHUTDOWN?: 0
REASON?: no reason
  Login quotas - Interactive limit=0, Current interactive value=1
    Non-operator logins are disabled.
   OPCOM, 23:39:15.46, OPERATOR TERMINAL STATUS, _OPA0:
   CENTRAL, PRINTER, TAPES, DISKS, DEVICES, CARDS, NETWORK,
   OPER(1,2,3,4,5,6,7,8,9,10,11,12)


_OPA0:,SYSTEM 23:39:16.07
"BATCH AND DEVICE QUEUES HAVE BEEN STOPPED"


_OPA0:,SYSTEM 23:39:16.40
"SYSTEM SHUTDOWN IN 0 MINUTES.  LOGINS ARE DISABLED, PLEASE LOGOFF.


_OPA0:,SYSTEM 23:39:16.58
"NO REASON

    Invoke installation dependent shutdown procedure.
    Stop all user processes.
    Dismount all mounted volumes.
   OPCOM, 23:39:17.84, SYSTEM       ACCNT=SYSTEM
   OPCOM, _OPA0:, "OPERATOR REQUESTED SHUTDOWN"


   OPCOM, 13-FEB-2023 23:39:17.94, LOGFILE CLOSED, OPERATOR=_OPA0:


**** FATAL BUG CHECK, VERSION = 1.00 OPERATOR, Operator requested system shutdown

    CURRENT PROCESS = SYSTEM

    REGISTER DUMP

        R0 = 00000024
        R1 = 00000000
        R2 = 00000004
        R3 = 7FFE8F05
        R4 = 80294E70
        R5 = 7FFEE284
        R6 = 31000513
        R7 = 7FFEF99C
        R8 = 7FFEF87C
        R9 = 7FFEF98C
        R10= 7FFEF9A4
        R11= 7FFE6C10
        AP = 00000000
        FP = 7FFEEBD0
        SP = 7FFEEBC8
        PC = 0000045D
        PSL= 00DF0000

    KERNEL/INTERRUPT STACK

        7FFEEBD0  00000000
        7FFEEBD4  00000000
        7FFEEBD8  7FFDC778
        7FFEEBDC  7FFEEBE4
        7FFEEBE0  800087E9
        7FFEEBE4  00000000
        7FFEEBE8  00000000
        7FFEEBEC  7FFDC778
        7FFEEBF0  7FFDC760
        7FFEEBF4  8000B4E3
        7FFEEBF8  80000096
        7FFEEBFC  03C00000

    EXEC STACK



    PROCESS PRIVILEGES

        8029DC00  FFFFFFFF
        8029DC04  FFFFFFFF


    IMAGE NAME = DMA0:[SYSEXE]OPCCRASH.EXE;1

Infinite loop, PC: 80008462 (BRB 80008462)
sim> exit
Goodbye

Update the .ini file to start the VMS on the next boot

... lines omitted
;BOOT HK0/R5:1  <--- Comment this line
BOOT HK0        <--- Uncomment this line

Start your guest again and confirm everything is working

$ ./vax780.exe

VAX 11/780 simulator Open SIMH V4.1-0 Current        git commit id: 4e159a04


  VAX/VMS Version 1.00 21-AUG-1978 15:54


   OPCOM, 13-FEB-2023 23:40:40.92, LOGFILE INITIALIZED, OPERATOR=_OPA0:

$ !
$ ! VAX/VMS system startup - Release 1
$ !
$ SHOW TIME
  13-FEB-2023 23:40:41
$ SET NOVERIFY
%MOUNT-I-MOUNTED, CONSOLE      mounted on _DXA1:
  Login quotas - Interactive limit=64, Current interactive value=0
  SYSTEM       job terminated at 13-FEB-2023 23:40:43.49

  Accounting information:
  Buffered I/O count:          142      Peak working set size:    98
  Direct I/O count:             37      Peak virtual size:       111
  Page faults:                 292      Mounted volumes:           1
  Elapsed CPU time:     0 00:00:01.32   Elapsed time:     0 00:00:03.07
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