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133 lines
3.9 KiB
Markdown
133 lines
3.9 KiB
Markdown
---
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keywords: ["CAPS-11", "PDP-11", SIMH, 1970s, 1970]
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image: ./caps-11-SIMH-3.webp
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description: 'We can run ! CAPS-11 on the SIMH PDP-11 emulator. First, we need to download the ! CAPS-11 kit. You can download the kit needed to run it on the SIMH PDP-11 emulator from the "SIMH Legacy" website.'
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sidebar_position: 1
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sidebar_label: "! CAPS-11 on SIMH"
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---
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# How to install ! CAPS-11 on SIMH?
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We can run [! CAPS-11](/1970s/1970/caps-11) on the SIMH PDP-11 emulator. First, we need to download the ! CAPS-11 kit.
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## Downloads
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You can download the kit needed to run ! CAPS-11 on the SIMH PDP-11 emulator from the [“SIMH Legacy” website](http://simh.trailing-edge.com/):
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- [! CAPS-11 kit](http://simh.trailing-edge.com/kits/caps11_system.zip)
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## Using ! CAPS-11
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:::tip
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If you have not already installed SIMH PDP-11 emulator, see [the VirtualHub Setup tutorial on how to do so](https://setup.virtualhub.eu.org/simh-pdp11/) on Linux and Windows.
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:::
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Extract the kit you downloaded. Inside you will find two files. Create a folder somewhere to store the files for this VM, and move the file named `caps11.t60` into it.
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Now we will create a config file for our VM. Create a text file called `pdp11.ini` with the following content in the VM folder:
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```ini
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set cpu 11/05
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set throttle 5%
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set cpu 32k
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set ptr disabled
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set ptp disabled
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set lpt disabled
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set dz disabled
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set rk disabled
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set rl disabled
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set hk disabled
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set rx disabled
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set rp disabled
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set rq disabled
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set tm disabled
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set tq disabled
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set ta enabled
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att ta0 caps11.t60
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d 1000 012700
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d 1002 177500
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d 1004 005010
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d 1006 010701
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d 1010 062701
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d 1012 000052
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d 1014 012702
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d 1016 000375
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d 1020 112103
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d 1022 112110
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d 1024 100413
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d 1026 130310
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d 1030 001776
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d 1032 105202
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d 1034 100772
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d 1036 116012
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d 1040 000002
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d 1042 120337
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d 1044 000000
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d 1046 001767
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d 1050 000000
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d 1052 000755
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d 1054 005710
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d 1056 100774
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d 1060 005007
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d 1062 017640
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d 1064 002415
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d 1066 112024
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d sr 0
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run 1000
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```
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Now open a terminal and move to the VM folder. Run the following command to start the emulator:
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```bash
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pdp11
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```
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After the emulator starts, you can type `dir` followed by enter. It will list all the files available on the disk.
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That's it! We used ! CAPS-11. We can create a shell script to make it easy to launch the VM. Create a file called `caps-11.sh` with the following content:
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```bash
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#!/bin/bash
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pdp11
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```
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Now make the file executable:
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```bash
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chmod +x caps-11.sh
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```
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Now you can start the VM using the shell script. For example, on KDE you can right-click the file and choose `Run in Konsole` or on GNOME, where you can right-click the file and choose `Run as executable`. The VM will start.
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See the [manuals section](/1970s/1970/caps-11/#manuals) on the [main ! CAPS-11 page](/1970s/1970/caps-11) to learn how to use it.
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### Windows
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:::tip
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You should use Linux. If you don’t know how to install a Linux distro, see [our tutorials on how to install Kubuntu](https://setup.virtualhub.eu.org/tag/os/), a beginner-friendly distro.
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:::
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On Windows, you need to place the `PDP11.exe` file you downloaded in [this tutorial](https://setup.virtualhub.eu.org/simh-pdp11#windows) in the VM folder. Then you can follow the above tutorial as usual. The shell script will not work on Windows. You need to rename it to `caps-11.bat`. Then you can double-click the file to launch the VM, no need to make it executable.
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## Credits
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- The disk image and other files used above are from a kit available on [SimH “Classic” website](http://simh.trailing-edge.com/).
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## Video tutorial
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Do you want to follow the tutorial by watching a video? We will post a video on our [YouTube channel](https://www.youtube.com/@virtua1hub) soon.
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Archives of this tutorial are available on [Wayback Machine](https://web.archive.org/web/*/https://virtualhub.eu.org/1970s/1970/caps-11/simh/).
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