A few weeks ago I wondered what it takes to turn a small LISP-1 into a LISP-2. Turns out it takes just a few hours to get most things right, then some days to iron out a few subtleties, and then a couple of weeks to polish it into a piece of art.
MICRO COMMON LISP is a tiny, purely symbolic, microscopic subset of #CommonLISP. It runs in less than 64K bytes of memory, even on #DOS (tiny model) or CP/M. Here it is:
http://t3x.org/mcl/
#CPM #LISP
Code indentation in the 70ies was wild! #cpm #pli #programming #retrocomputing
The Mini #CommonLISP I have been working on now runs on CP/M with 2416 free cons cells. Enough to load Ken Kahn's tiny PROLOG and run a few simple queries.
The #AgonLight (18MHz eZ80) loads the LISP part of the code (236 lines) in 11 seconds. Simple programs run at acceptable speed, but slightly more complex PROLOG queries take *minutes*. :)
#LISP #CPM #PROLOG #Z80
Neu bei VSG: Dies ist meine Geschichte wie ich zum Computer kam. Es muss schon sehr lange her sein, als ich mich für elektronische Spielereien interessierte, ich sag mal so gegen 1972.
TEIL 3 von Wumpus 
https://www.videospielgeschichten.de/die-reise-zu-den-space-invaders-teil-3-die-welt-nach-dem-64er/
Die Reise zu den Space Invaders – Teil 3: Die Welt nach dem 64er
Dies ist meine Geschichte wie ich zum Computer kam. Es muss schon sehr lange her sein, als ich mich für elektronische Spielereien interessierte, ich sag mal so gegen 1972.
https://www.videospielgeschichten.de/die-reise-zu-den-space-invaders-teil-3-die-welt-nach-dem-64er/
The Coolest Thing In The World Is CP/M For 6502
Is that hyperbolic? It probably is. But the heart wants what it wants, and what mine wants is CP/M for the MOS 6502 processor. Set Side B is a blog about computer entertainment, in all its many forms, and this qualifies in my mind, because it's not like anyone's going to be using it do real work.
https://setsideb.com/the-coolest-thing-in-the-world-is-cp-m-for-6502/
#niche #retro #c64 #CPM #CPM65 #dos #niche #os #retro #StupidComputerTricks
Any recommendations for #rc2014 #CPM software?
#askingforafriend
The little #CPM #workstation is finished. My evening work consisted of packing it in a nice case and starting the backplane soldering. But there are still plenty of soldering points left, I'll have to do that tomorrow as well.
Do any of you #Pascal nerds knows a source for porting #Eliza to #TurboPascal3, the first good Turing test in #BASIC?
#RetroComputing #ZilogZ180 #SC126
CP/M 2.2, CP/M 3.0, CP/M-86, Concurrent CP/M-86 listings by Digital Research
http://www.bitsavers.org/pdf/digitalResearch/CPM_Listings/
#HackerNews #CPM #2.2 #CP/M #3.0 #Digital #Research #Vintage #Computing #Software #Preservation
Playing around with a PROFILE.SUB and the SUBMIT command to get a kind of AUTOEXEC.BAT under #CPM2. It makes a lot of fun to play with such an old technique and shows how restless our time has become.
#RetroComputing #CPM #ZilogZ180
@bitsavers has just posted yet another computing history treasure: the scans of the original Digital Research listings of the sources of CP/M 2.2, CP/M Plus 3.0, CP/M-86, and Concurrent CP/M-86 in Intel 8080 Assembly, PL/M, and Intel 8086 Assembly.
Ok so a standard circuit board is 1.57 mm or 0.062 inch thick, and a S100 circuit board is 5 inch x 10 inch.
So I've ordered some 8" x 12" plastic sheets that are 1.5 mm thick, and a pair of 80mm 12v fans to build a fan card to help cool my S100 CP/M box!
@BrodieOnLinux @qdot I find this to be the worst way to decide a #TechStack.
#NetworkEffects are #toxic when it comes to #SaaS and #proprietary shite, regardless if the bad guys are #discord, #Autodesk, #Adobe, #Apple or #Microsoft for that matter. (Don't even get me started on #SAP & #Oracle!)…
https://infosec.space/@kkarhan/114623174796828016
But if I was wrong, I 'd not be called upon as a Linux #Sysadmin and to act as "#BenevolentDictator" in terms of Tech Stack Decisions...
New #openaccess publication #SciPost #Physics
Higher spin swampland conjecture for massive AdS3 gravity
Rajae Sammani, El Hassan Saidi
SciPost Phys. 18, 173 (2025)
https://scipost.org/SciPostPhys.18.6.173
Most of the work for the #RC2014 machine based on the #Zilog higher integrated #Z180 CPU is done. The two 90° card connectors are final work for tomorrow afternoon. All parts were available from my private stock, except the 74AHCT139 for the RAM card. The circuits are, as ever, highly quality from pcb4diy.
#RetroComputing #CPM
My first operating system was CP/M. An operating system created in 1974 by Gary Kildall, the founder of Digital Research. Few people knows who was Gary Kildall (https://en.wikipedia.org/wiki/Gary_Kildall) and his CPM (https://en.wikipedia.org/wiki/CP/M).
Apple and Microsoft have taken the history for them..
Farmer Buys Computer In 1995 Computer Store. He's Shocked By The Price.
Taller de escritura: el Estado vigila, nosotres narramos
Sábado Abierto en la CPM
Taller de escritura
El Estado vigila, nosotres narramos
_Construir ficción con los archivos de la inteligencia policial
Dictado por Ramón D. Tarruella
Inicio: Sábado 17 de mayo- 17 hs.Casa CPM, calle 54 #487, La Plata
Vamos a ejercitar la escritura de ficción utilizando documentos de inteligencia policial como punto de partida. […]
17/5/2025 
17:00 - 19:00
Comisión Provincial por la Memoria 
Mapa
#amba #la_plata #comisión_provincial_por_la_memoria #cpm #taller_de_escritura
Más información en vagancio pirato
Reenviado desde Vagancio Agenda Popular
(https://t.me/experienciainterdimensional/8039)
Experiencia interdimensional 