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# $Id: README_xxdp_rlset.txt 680 2015-05-14 13:29:46Z mueller $

Notes on oskit: XXDP V2.2 and V2.5 system on RL02 volumes

  Table of content:

    1.  General remarks
    2.  Installation
    3.  Usage

1. General remarks ---------------------------------------------------

   See notes, especially on legal terms, in README_license.txt !!

2. Installation ------------------------------------------------------

   - A disk images for XXDP V2.2 and V2.5 are available from bitsavers
       http://bitsavers.trailing-edge.com/bits/DEC/pdp11/discimages/rl02
         xxdp22.rl02.gz
         xxdp25.rl02.gz
     Download, unpack and copy the disk images (*.dsk), e.g.

       cd $RETROBASE/tools/oskit/xxdp_rl

       disk_path=http://bitsavers.trailing-edge.com/bits/DEC/pdp11/discimages
       wget $disk_path/rl02/xxdp22.rl02.gz
       wget $disk_path/rl02/xxdp25.rl02.gz

       gunzip -c xxdp22.rl02.gz > xxdp22.dsk
       gunzip -c xxdp25.rl02.gz > xxdp25.dsk

3. Usage -------------------------------------------------------------

   - Start them in simulator
       pdp11 xxdp22_rl_boot.scmd
       pdp11 xxdp25_rl_boot.scmd

     or on w11a
       ti_w11 <opt> @xxdp22_rl_boot.tcl
       ti_w11 <opt> @xxdp25_rl_boot.tcl
     where <opt> is the proper option set for the board.

   - Hit <ENTER> in the xterm window to connect to simh or backend server.
     The boot dialog in the console xterm window will look like
     (required input is in {..}, with {<CR>} denoting a carriage return.

     XXDP V2.2 boot dialog:

       CHMDLD0 XXDP+ DL MONITOR
       BOOTED VIA UNIT 0
       28K UNIBUS SYSTEM

       ENTER DATE (DD-MMM-YY): {10-jan-85}

       RESTART ADDR: 152010
       THIS IS XXDP+.  TYPE "H" OR "H/L" FOR HELP.

       .

     XXDP V2.5 boot dialog:

       BOOTING UP XXDP-XM EXTENDED MONITOR

       XXDP-XM EXTENDED MONITOR - XXDP V2.5
       REVISION: F0
       BOOTED FROM DL0
       124KW OF MEMORY
       UNIBUS SYSTEM

       RESTART ADDRESS: 152000
       TYPE "H" FOR HELP !

       .

     Now you are at the XXDP prompt '.' and can exercise the system:
     
       . {H}
         --> will print help
       . {D}
         --> will list the files
       . {R EKBAD0}
         --> will run the 'PDP 11/70 cpu diagnostic part 1'

     There is no 'halt' or 'shutdown' command, just terminate the 
     simulator or backend server session.