---
layout: page
title: PDP-11/70 with Front Panel and Debugger
permalink: /devices/pdp11/machine/1170/panel/debugger/xxdp/
machines:
  - id: test1170
    type: pdp11
    config: /devices/pdp11/machine/1170/panel/debugger/machine.xml
    debugger: true
    autoStart: true
    autoMount:
      RL0:
        path: http://archive.pcjs.org/disks/dec/rl02k/RL02K-XXDP.json
    sticky: top
commands:
  bootXXDP: |
    select rl11 listDrives RL0;
    select rl11 listDisks "XXDP+ Diagnostics";
    click rl11 loadDisk;
    click rl11 bootDisk;
---

This machine is ready to boot [XXDP+ Diagnostics](/disks/dec/rl02k/xxdp/) ("BOOT RL0") and run diagnostics
(e.g., "R EKBEE1"):

- [EKBAD0: 11/70 CPU DIAGNOSTIC (PART 1)](/disks/dec/rl02k/xxdp/ekbad0/)
- [EKBBF0: 11/70 CPU DIAGNOSTIC (PART 2)](/disks/dec/rl02k/xxdp/ekbbf0/)
- [EKBEE1: 11/70 MEMORY MANAGEMENT DIAGNOSTIC](/disks/dec/rl02k/xxdp/ekbee1/)

Step-by-step instructions are included below.  Other interesting things to know about this machine:

* It includes an [M9312 ROM](/devices/pdp11/rom/M9312/) at address 165000.  The exact ROM is [23-616F1](/devices/pdp11/rom/M9312/23-616F1.txt).

{% include machine.html id="test1170" %}

Step 1: We need to select a drive to load the [RL02K XXDP+ Diagnostics Disk](/disks/dec/rl02k/xxdp/), and since it is
an RL02K disk, we need to use an RL02 drive.  A typical PDP-11 machine with a single [RL11 Disk Controller](/devices/pdp11/rl11/)
could contain up to four such drives, which we refer to as RL0 through RL3.

To select drive RL0, press {% include machine-command.html type='button' label='Select RL0' machine='test1170' component='RL11' command='selectDrive' value='RL0' %}

To boot the [RL02K XXDP+ Diagnostics Disk](/disks/dec/rl02k/xxdp/) in one step, press {% include machine-command.html type='button' label='Boot XXDP+' machine='test1170' component='RL11' command='bootXXDP' %}