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jlyocum.com
In the first K&R "C Programming Language" manual, from 1988, if you look up "recursion" in the index, among the instances of its occurrence in the text, the index also lists the index page for the index listing of "recursion."

...

(image is not mine; photo credit is in the alt text.)
Image of the index listing showing "Recursion," on page 269 of the book, with the index listing showing Recursion appears on page 269. Image credit to Redditor u/root42 (https://www.reddit.com/user/root42/) in an archived Reddit post here: https://www.reddit.com/r/ProgrammerHumor/comments/b9db36/the_original_edition_of_kr_the_c_programming/
June 28, 2025 at 7:08 PM
theoasisbbs.bsky.social
Kung Fu SID Reviewed: Root42 Tests the New Open-Source SID Replacement
#C64 #SIDChip #KungFuSID #RetroComputing #Commodore64 #OpenSourceHardware #Root42 #Chiptune

theoasisbbs.com/kung-fu-sid-...
Kung Fu SID Reviewed: Root42 Tests the New Open-Source SID Replacement - The Oasis BBS
Root42 reviews Kung Fu SID, an open-source SID chip replacement for the C64. Hear how it compares in sound and value.
theoasisbbs.com
April 30, 2025 at 1:18 PM
edgarallandoh.bsky.social
The world doesn't have to be ugly.

www.patreon.com/posts/our-fi...
Our First PC: Highscreen Colani 486SX | root42
Get more from root42 on Patreon
www.patreon.com
October 26, 2025 at 1:18 AM
theoasisbbs.bsky.social
Infocom Interpreter Hacking on Commodore PET
#CommodorePET #Infocom #6502Assembly #RetroComputing #Root42 #BitShifter #TextAdventures #Commodore64 #RetroDev #LiveCoding

theoasisbbs.com/infocom-inte...
Infocom Interpreter Hacking - The Oasis BBS
Root42 tackles Infocom interpreter hacking live on the Commodore 64. Watch retro coding chaos and creativity unfold in real time.
theoasisbbs.com
June 12, 2025 at 1:46 PM
theoasisbbs.bsky.social
CBM 4040 Servicing Brings a Dual PET Drive Back to Life
#Commodore #CommodorePET #CBM4040 #Root42 #RetroComputing #VintageComputers #FloppyDrive #ComputerRepair

theoasisbbs.com/cbm-4040-ser...
CBM 4040 Servicing Brings a Dual PET Drive Back to Life - The Oasis BBS
CBM 4040 servicing gets detailed as Root42 cleans, tests, and repairs a dusty dual Commodore PET floppy drive. Watch the full video.
theoasisbbs.com
May 18, 2026 at 1:16 PM
geographyquiz.app
So cool! Someone discovered an ad for a 🙈🙉🙊 Monkey Island 🏝️ theater play on Mastodon. It is scheduled to take place in March 2026 at a theater in Halle, Germany.

I want to be a pirate 🏴‍☠️ and a grog 🍺

#MonkeyIsland #Retrogaming #Halle

chaos.social/@root42/1155...
root42 (@root42@chaos.social)
Attached: 1 image TIL there is a German Monkey Island play. #theatre #monkeyisland
chaos.social
November 14, 2025 at 5:32 PM
theoasisbbs.bsky.social
Reviving a Shimmering Commodore 64C: Root42’s Repair Journey
#Commodore64 #C64 #RetroComputing #C64Repair #VintageTech #RetroGaming #PLA #ArmSID

theoasisbbs.com/reviving-a-s...
Reviving a Shimmering Commodore 64C: Root42’s Repair Journey - The Oasis BBS
Root42 tackles a C64C with shimmering screen colors, unveiling unusual modifications and faulty components in the repair process.
theoasisbbs.com
January 28, 2025 at 2:29 PM
jeffthatnoise.bsky.social
youtu.be/S_cMmiF3VDM
May 3, 2026 at 11:21 PM
theoasisbbs.bsky.social
Commodore 64 Repair Challenge
#Commodore64 #C64Repair #RetroComputing #1541Drive #Root42

theoasisbbs.com/commodore-64...
Commodore 64 Repair Challenge - The Oasis BBS
Root42 tackles a Commodore 64 repair challenge with a dead C64 and faulty 1541 drive, uncovering faults and restoring life to both machines.
theoasisbbs.com
September 19, 2025 at 1:18 PM
theoasisbbs.bsky.social
root42 Explores 1541 Track Zero Problems in Commodore Drive Swaps
#Commodore64 #Commodore1541 #FloppyDrive #RetroComputing #C64 #DiskDrive #1541C #root42

theoasisbbs.com/root42-explo...
1541 Track Zero - The Oasis BBS
root42 explores 1541 track zero issues, drive swaps, and what Commodore owners should check before mixing mechanisms.
theoasisbbs.com
April 6, 2026 at 1:37 PM
theoasisbbs.bsky.social
Pico DRAM Tester Build
#RetroComputing #PicoDRAMTester #Root42 #TubeTime #Commodore64 #VintageHardware #ElectronicsTesting #RaspberryPi

theoasisbbs.com/pico-dram-te...
Pico DRAM Tester Build - The Oasis BBS
Root42 builds the Pico DRAM tester and explores its firmware, testing quirks, and vintage chip support using the Raspberry Pi Pico 2.
theoasisbbs.com
May 22, 2025 at 1:24 PM
theoasisbbs.bsky.social
OneROM Versatile Emulator Review: Root42 Tests Fire and Ice in a C64 and 1541
#Commodore64 #C64 #Commodore1541 #RetroComputing #VintageComputing #HardwareRepair #OneROM #Root42 #8Bit

theoasisbbs.com/onerom-versa...
OneROM Versatile Emulator Review
OneROM Versatile Emulator gets bench tested in Root42’s video, flashing ROM sets for a C64 and 1541 with jumper selects.
theoasisbbs.com
January 9, 2026 at 3:39 PM
theoasisbbs.bsky.social
C64 PSU Safety: root42 Tests the iComp Smart Supply for Commodore 64
#Commodore64 #C64 #IndividualComputers #C64Repair #RetroComputing #root42 #PowerSupply #VintageComputers

theoasisbbs.com/c64-psu-safe...
C64 PSU Safety - The Oasis BBS
C64 PSU Safety gets a close look as root42 tests iComp’s Smart Supply against old C64 bricks and a modern Electroware unit.
theoasisbbs.com
April 20, 2026 at 2:14 PM
discover.holos.social.web.brid.gy
root42 (@root42@chaos.social)
You see it's all clear You were meant to be here From the beginning#elp #progrock #arecordeveryday
chaos.social
September 18, 2026 at 4:34 PM
theoasisbbs.bsky.social
Amiga 1010 Restoration Brings an External Drive Back to Life
#Amiga #Amiga1010 #Amiga500 #Amiga1000 #CommodoreAmiga #RetroComputing #FloppyDrive #Root42

theoasisbbs.com/amiga-1010-r...
Amiga 1010 Restoration Brings an External Drive Back to Life - The Oasis BBS
Root42 completes an Amiga 1010 restoration, cleaning its case, inspecting the drive, and testing it with an Amiga 500.
theoasisbbs.com
August 7, 2026 at 12:17 PM
stevedeniese.bsky.social
The Monkey Island 2 version is sick too, never heard this version before.

youtu.be/Yw6X8b_6MGw
Monkey Island 2 Theme - Roland SC-55 General Midi
YouTube video by root42
youtu.be
June 7, 2025 at 12:13 AM
castanearie.eu
youtu.be/zxTtG9wmAFM
The HDD Clicker
YouTube video by root42
youtu.be
March 20, 2025 at 4:49 PM
linker3000.com
Hopefully, although those PLAs don't age well, as root42 said.
May 17, 2026 at 5:54 PM
black92rs74.bsky.social
Some of the stuff Root42 do, go way over my head, but that is not extraordinary.
(7.36K Subs 12/24)
300+ Videos spanning 6 years: PCB assembly, Retro hardware and software reviews, repairs, old school coding.
Difficult to chose a single video, so I go with this beauty.
youtu.be/BCfVG1IB5lo?...
Our First PC: Highscreen Colani 486SX
YouTube video by root42
youtu.be
December 11, 2024 at 5:42 PM
theoasisbbs.bsky.social
SFD 1001 Floppy Drive Repair Success
#Commodore #SFD1001 #FloppyDrive #RetroComputing #Root42

theoasisbbs.com/sfd-1001-flo...
SFD 1001 Floppy Drive Repair Success - The Oasis BBS
Discover the full SFD 1001 floppy drive repair, from diagnosis to fix, and see how this rare Commodore drive returns to action.
theoasisbbs.com
December 2, 2025 at 2:56 PM
discover.holos.social.web.brid.gy
root42 (@root42@chaos.social)
My kids' toy quadcopter has a broken motor. So I ordered a couple of motors. They obviously come in CW and CCW flavours. How do I tell which is which? I guess the red/blue goes where the other red/blue currently is. And the black/white where the red/white is. But is the black wire equal to the black one...? Previous motors have red as positive. But black / white is not easy ... Any ideas?#letsfixit #quadcopter #righttorepair
chaos.social
September 5, 2026 at 2:10 PM
fm-volker.mastodon.social.ap.brid.gy
"Wir haben den betreffenden Mitarbeiter auf die von Ihnen geschilderte Situation angesprochen und die Erwartungen an ein neutrales und professionelles Auftreten im dienstlichen Umfeld nochmals verdeutlicht."

@root42 @me_
August 20, 2026 at 1:24 PM
instances.joinpeertube.org.web.brid.gy
Root42Tube
This is the PeerTube instance of root42: I tinker with old hardware, homebrew hardware; I make Let's Code videos for teaching Oldskool demo effects and learning Assembly language. Blog: https://root42.de/blog Mastodon: https://chaos.social/@root42
peertube.v1.root42.de
August 10, 2026 at 6:51 AM
p4fkoeln.social.cologne.ap.brid.gy
@Laberpferd @root42 : guck mal, fliegt bei Euch was rum?
January 25, 2025 at 8:23 AM