Symbolics LISP Engineering

There are 10 controls for monitor adjustment. Two large finger controls, a group of 6 small multi-turn trim controls for vertical, and a group of 2 small multi-turn trim controls for horizontal. You … »

Reprinted “Cliff’s” notes from various manuals. Keyboard XL’s User’s Guide - The Keyboard You can have keys repeat if they are held down. This feature is disabled by … »

Keyboard Scrolling SCROLL - one window down m-SCROLL - one window up s-SCROLL - one window right m-s-SCROLL - one window left These seem to work only when keyboard input is active. It won’t work … »

Error Recovery XL’s User’s Guide - When Things Go Wrong with the XL Wait for User Input to appear instead of Run with a steady/flashing underline in the bottom center of the screen Try … »

Credits for things I used on this site: Lisp Machine Font Bitsavers Symbolics Documentation Hugo Static Blog Generator Earlier versions used Ghost version 0.9 Odin theme converted from Ghost to Hugo … »

How to format a SCSI disk on the XL1201. First, boot into Lisp. Command: Format SCSI Disk (SCSI address) 1 (keywords) :Sector Size (sector size in bytes [default 1280]) 1280 SCSI device 1 is a SEAGATE … »

The XL1201 mouse is a Logitech 3-button mouse, model number P7-3F-SZ. It has an 8-pin modular jack with a key on one side (in other words, it’s very close to a standard RJ-45 jack but has more … »

This discusses the initial boot of the XL1201 including the PROM and FEP before Genera is fully running. Initial PROM Boot Sequence If you power the XL1201 on and immediately hit a key, you will see … »

Useful LOCAL commands on an XL1201 with the PE36-PCONS model console (part no. 365404) XL User’s Guide - Using Local Commands on the XL LOCAL-D/B Dims/brightens screen LOCAL-Q/L Quiets/loudens … »

Updated July 8, 2016: For the latest used in my Symbolics XL1201, please see the full capacitor list here. Old Information Key: E = Radial A = Axial Power Supply Manufacturer: TODD Products Corp, … »

This is a test post I use for testing various stuff. (defun xplusone (x) (+ 1 x)) (defun x (y) (+ (- 3 4) (+ 5 6) (* 4 2))) function showMilitaryTime() { if (document.theForm.showMilitary[0].checked) … »