esix software package provides PDP-8 Engineering and Scientific Interpreter eXtended, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install esix
esix is installed in your system.
Make ensure the esix package were installed using the commands given below,
$ sudo dpkg-query -l | grep esix *
You will get with esix package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Other OSs and file systems |
| Package | esix |
| Version | 01-02-2016 |
| Description | PDP-8 Engineering and Scientific Interpreter eXtended |
| Sub Section | otherosfs |