"Blizzard Basin", implemented in Pascal, compiled for CP/M and running on the ZX Spectrum Next at 28 MHz.
via Joerg Pleumann
"Blizzard Basin", implemented in Pascal, compiled for CP/M and running on the ZX Spectrum Next at 28 MHz.
via Joerg Pleumann
"Plutonian Pebbles", implemented in Pascal, compiled for CP/M and running on a ZX Spectrum Next at 28 MHz.
via Joerg Pleumann
I put together most of my retrocomputing bookshelf while learning Intel 8080 and CP/M programming, which reflects in the selection of titles. For more great photos of retrocomputing bookshelfs see:
https://retrocomputingforum.com/t/shelfies-bookshelves-with-a-retrocomputing-angle/190
Uploaded a new version of KILO LISP, a LISP system with a size in the kilobyte range (22KB on DOS, 26KB on CP/M). This version contains many fixes and improvements from MICRO COMMON LISP, which is derived from it.
http://t3x.org/klisp/22/
http://t3x.org/mcl/
#LISP #DOS #CPM
Retro Computing Nostalgia meet Open Source Software and Hardware with AgonLight and Neo6502, the incredible evolution of modern Retro computer projects https://olimex.wordpress.com/2025/07/23/retro-computing-nostalgia-meet-open-source-software-and-hardware/ #z80 #w65c02 #retrocomputing #retrogaming #pascal #cpm #forth #basic #cc65
Has anyone experience in using CP/M with a ZX Spectrum Next? Any pointers to suitable disk images and/or patches? Also for Spectrum 3+, that reportedly had some AMSTRAD issued CP/M plus versions…
Memoirs of the CP/M creator released:
“Our father, Gary Kildall, was one of the founders of the personal computer industry, but you probably don’t know his name. Those who have heard of him may recall the myth that he ‘missed’ the opportunity to become Bill Gates by going flying instead of meeting with IBM. Unfortunately, this tall tale paints Gary as a ‘could-have-been,’ ignores his deep contributions, and overshadows his role as an inventor of key technologies that define how computer platforms run today.
Gary viewed computers as learning tools rather than profit engines. His career choices reflect a different definition of success, where innovation means sharing ideas, letting passion drive your work and making source code available for others to build upon. His work ethic during the 1970s resembles that of the open-source community today."
https://computerhistory.org/blog/in-his-own-words-gary-kildall/
CP/M Creator Gary Kildall's Memoirs Released as Free Download
https://spectrum.ieee.org/cpm-creator-gary-kildalls-memoirs-released-as-free-download
@lea I think #PowerShell is more #cursed than any other #shell becaise #Microsoft can't be assed to have any consistency and one gets commands that look like
CamelCase.command-network.option -flag --another option +includeThis +-excludeThat :user
And it's worse than #MSDOS / cmd.exe
, sh
tcsh
& ksh
combined because it mixes up #DOS / #CPM-Style, #UNIX-style and whatever the fuck the peoole.who designed the #Refistry in #Windows felt like that particular day...
#Funfact: I needed less code than that to build my first bootable version of @OS1337 just by comparison!
Extremely decent ASCIIART benchmark result on @tomjennings 's Friendly eZ80 CP/M computer running BASIC-80 5.21 : 11.3 seconds
Another benchmark suggests that it's running BASIC 47× faster than a C64
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/
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
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!