[Simh] VMS 1.5 installable?

[Wilm Boerhout]

John Forecast schreef op 17-10-2017 om 22:27:

[Snip]

I don’t think you’ll be able to get early versions of VMS running on 
SIMH. A lot (almost all?) of the utilities run in PDP-11 compatibility 
mode which, as far as I can see, is not supported by the 11/780 emulator.

[Snip]

I beg to differ. I have been running V1.5 on a simh VAX 11/780 ever 
since the 780 appeared on simh.

As the OP said, you need DSC2 to restore the V1.5 distro .tap file to a 
Files-11 disk. DSC2 may be found on the original V3.0 distro for VMS, 
that is a regular backup save set. So it is a staged process:

  * boot any VMS system with VMS backup to restore the V3.0 tape to a
    disk and boot from this
  * use DSC2 (in RSX-11 compatibility mode) on the V3.0 system to
    restore the VMS 1.5 tape to a Files-11 disk.
  * boot V1.5 !!!

See also my blog on 
https://vxcompany.com/2016/02/13/a-working-vax-11780-revisited/


/Wilm

Below is my config file for a simh configuration that will boot V1.5, 
V3.6 and V7.3

Use the now commented TU devices for loading the various tapes. And 
remember, the joy is in the journey!



; VAX-11/780 emulator settings
set cpu 32M, conhalt, idle=VMS
set uba autoconfig

echo    ----------------------------
echo           VAX-11/780 32MB
echo            Big Brother
echo    ----------------------------
echo

; unused devices:
set rl disable
set hk disable
set ts disable
set lpt disable
set rp disable
set ry disable

set xu enable

; DZ11 listen on port 10000 for dz0-7
set dz lines=8
attach dz 10000

; DUA disk ctrl
set rq0 autosize
set rq1 autosize
set rq2 autosize
set rq3 autosize

att -e rq0 /vdisk/VMSV73clus.vdisk
att -e rq1 /vdisk/VXTOOLS.vdisk
att -e rq2 /vdisk/Hobbyist.vdisk
att -e rq3 /vdisk/SABKUP.vdisk

; DUB disk ctrl
set rqb enable
set rqb0 disable
set rqb1 autosize
set rqb2 disable
set rqb3 autosize

att rqb1 /vdisk/VMSV15.vdisk
att rqb3 /vdisk/VMSV30.vdisk

; MUA tape ctrl
set tq TU81
set tq0 capacity=0
set tq1 disable
set tq2 disable
set tq3 disable

att tq0 /mnt/nas/pi/PIVAX3.vtape

; MBA tape ctrl
set tu disable
;set tu  TE16
;set tu0 disable
;set tu1 locked capacity=16
;set tu2 disable
;set tu3 locked capacity=16
;set tu4 disable
;set tu5 disable
;set tu6 disable
;set tu7 disable

;att -e tu1 /vtape/VMS1.5-BB-D782B-BE.tap
;att -e tu3 /vtape/VMS3.0-BB-D782E-BE.tap

; card rdr for file xfer
set cr enable
set cr autoeof
att -a cr /mnt/nas/xfer.txt
set cr translation=029

; Ethernet
set xu mac=08:00:2B:19:02:54 type=DELUA
att xu tap:tap0

att todr /opt/simh-master/BIN/toy.clk

; Boot
;echo -----------------------------------------------
;echo type b[oot] rq0 to start the VAX-11/780
;echo -----------------------------------------------
;echo

boot rq0