Home Subscribe
Douglas Fields's Picture

Douglas Fields

Writing LISP and Haskell since 1990

54 posts
Page 1 of 3 Older Posts →

Symbolics LAN - Overview

Over the past two weeks, I set up a small Symbolics LAN, and thought I would share some of the process and findings. I will write »

Douglas Fields Douglas Fields on genera, symbolics, lan 09 May 2021

Symbolics XL LAN Challenges

I recently set up a LAN of my three XL Symbolics machines at home. The XL1201 which was having stability issues has been largely stabilized (thanks »

Douglas Fields Douglas Fields on xl1201, screenshot, genera, symbolics, crash 05 May 2021

Aiband, a Clojure Unity Roguelike

I've decided to participate in ProcJam 2016 this year. For a change of pace, I'm building a small roguelike in Clojure with a Unity3D front-end. This »

Douglas Fields Douglas Fields on clojure, unity3d, procjam, roguelike, aiband 09 November 2016

CLIM on Genera 8.3 [Updated]

In preparation of doing some actual software engineering on Genera, I decided to take a look at the CLIM implementation on my MacIvory III Genera 8. »

Douglas Fields Douglas Fields on genera, symbolics, macivory, clim 28 August 2016

Ivory CPU Heatsink and Instability

One of the theories about the instability of my Symbolics XL1200 is that the CPU has no heatsink and so it is suffering from thermal problems »

Douglas Fields Douglas Fields on symbolics, xl1201, repair, heatsink 06 August 2016

Telnet to MacIvory

Just a quick note about how to enable telnet to your MacIvory III running Genera 8.3. First, Edit Object Site NAME (obviously, use your NAME »

Douglas Fields Douglas Fields on symbolics, genera, macivory, telnet 29 July 2016

XL1201 Moment of Truth

UPDATE: No joy. Still self-reboots. So, I put the Merlin II card back into the XL1201, connected the power and console, and powered it up. Nothing. »

Douglas Fields Douglas Fields on xl1201, symbolics, repair 24 July 2016

XL1201 Merlin II Chip Reseating

UPDATE: I clipped and removed the broken capacitor. Replacing it will be the task of another day. I spent two days removing, cleaning and reseating each »

Douglas Fields Douglas Fields on symbolics, xl1201, pcb, repair 24 July 2016

Detailed Inspection of XL1201 Merlin II Solder Side

To see if I can isolate the cause of the XL1201 instability, I am going to physically inspect the two main cards with a loupe and »

Douglas Fields Douglas Fields on symbolics, xl1201, pcb 23 July 2016

Enhanced X11 Keyboard

Well, after living with the default keyboard mapping for Genera under X-Windows, I decided to make an optimized one for an 87-key ANSI layout. The design »

Douglas Fields Douglas Fields on symbolics, genera, keyboard, x11 20 July 2016

Reloading Translations Files

Just a brief hint... After you modify the file that has your translations (e.g., sys.translations), to make the new changes active, call (load-patches). Per »

Douglas Fields Douglas Fields on genera, symbolics 18 July 2016

Genera Xquartz Keyboard

It has taken some effort, but I finally created a reasonable (and close-to-default) keyboard layout and mapping for Genera for using a modern, 87-key "tenkeyless" keyboard »

Douglas Fields Douglas Fields on symbolics, macivory, x11, screenshot, keyboard 17 July 2016

XL1201 Stability Update

In an effort to rule out the power supply causing the XL1201's instability, I sent it out for overhaul by Power Clinic. After reinstalling it, I »

Douglas Fields Douglas Fields on symbolics, xl1201, power 16 July 2016

MacIvory III Transplant

Space is a premium in my little vintage computing paradise, so I had the bright idea of transplanting my MacIvory III from a desktop Quadra 650 »

Douglas Fields Douglas Fields on symbolics, macivory 14 July 2016

Todd MAX-354-1252 Power Supply for XL1201

So, I learned something about the Todd MAX-354-1252 power supply in the Symbolics XL1201 today that I thought I'd share. Not that I understand it, mind »

Douglas Fields Douglas Fields on symbolics, xl1201, power 13 July 2016

MacIvory III Setup and X11

As I haven't had the time to continue to debug the XL1201 hardware problems, I turned back to the MacIvory III and an Intel i7 NUC »

Douglas Fields Douglas Fields on symbolics, genera, x11, macivory, screenshot 12 July 2016

MacIvory and MouseKey 1.2

Well, I couldn't find MouseKey 1.0 or 1.1.1 software anywhere on the Internet. Logitech has 2.0 on their web site, and I »

Douglas Fields Douglas Fields on symbolics, macivory, logitech, mouseman, mousekey 10 July 2016

More XL1201 Crashes

Well, tonight I had more crashes using the XL1201. Each time the computer crashed after about 20 minutes. This indicates to me that there's something odd »

Douglas Fields Douglas Fields on symbolics, xl1201, crash 07 July 2016

XL1201 Instability Next Steps

Well, the instability on the XL1201 has been disheartening. However, I have a few suggestions and plans to see if I can figure it out. Kalman »

Douglas Fields Douglas Fields on symbolics, xl1201, status 06 July 2016

Power Supply, Memory, Crashes

I don't have the time to post all the details before going to sleep, but I did a few things tonight including measure the power supply »

Douglas Fields Douglas Fields on symbolics, xl1201, power, memory, problems 05 July 2016
Page 1 of 3 Older Posts →
Symbolics LISP Engineering © 2025
Odin theme created by Andrea Tarquini (@h4t0n). Proudly published with Ghost