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theoasisbbs.bsky.social
Truchet Tiles on C64: 6 Fascinating Discoveries
#TruchetTiles #Commodore64 #PETSCII #8BitShowAndTell #RetroComputing

theoasisbbs.com/truchet-tile...
Truchet Tiles on C64: 6 Fascinating Discoveries - The Oasis BBS
Explore how 8-Bit Show & Tell brings Truchet tiles to life on the Commodore 64 using PETSCII and 6510 assembly.
theoasisbbs.com
July 10, 2025 at 1:28 PM
theoasisbbs.bsky.social
Chessboard Color Challenge in BASIC
#C64 #CodeGolf #RetroComputing #Commodore64 #8BitShowAndTell #VintageProgramming

theoasisbbs.com/chessboard-c...
Chessboard Color Challenge in BASIC - The Oasis BBS
Robin solves the Chessboard Color Challenge using Commodore 64 BASIC—pushing code size to a retro-inspired 57-character limit.
theoasisbbs.com
June 9, 2025 at 1:34 PM
theoasisbbs.bsky.social
Exploring C64 Truchet Tiles
#C64 #Commodore64 #TruchetTiles #8BitShowAndTell #RetroCoding #Assembly #PETSCII #TurboMacroPro #TileRenderer

theoasisbbs.com/exploring-c6...
Exploring C64 Truchet Tiles - The Oasis BBS
Robin breaks down how the C64 Truchet Tiles program works using BASIC, machine code, and 30 tile patterns. Learn how it all connects.
theoasisbbs.com
August 18, 2025 at 1:17 PM
theoasisbbs.bsky.social
50 Years of 6502 Instructions
#MOS6502 #Commodore64 #8BitShowAndTell #RetroComputing #C64 #Assembly #AppleII #NES #Atari2600

theoasisbbs.com/50-years-of-...
50 Years of 6502 Instructions - The Oasis BBS
8-Bit Show and Tell marks 50 Years of 6502 with a ranked lively tour of the instructions that drove classic 8bit machines across decades now.
theoasisbbs.com
October 10, 2025 at 1:18 PM
theoasisbbs.bsky.social
C64 Maze Speed: 8-Bit Show And Tell Pushes 10 PRINT Faster
#C64 #Commodore64 #10PRINT #8BitShowAndTell #The8BitGuy #RetroComputing #BASIC #SIDChip

theoasisbbs.com/c64-maze-spe...
C64 Maze Speed: 8-Bit Show And Tell Pushes 10 PRINT Faster - The Oasis BBS
C64 Maze Speed follows 8-Bit Show And Tell as Robin tests faster 10 PRINT code, SID random numbers, and BASIC timing on a Commodore 64.
theoasisbbs.com
May 28, 2026 at 1:10 PM
theoasisbbs.bsky.social
C64 Carol Raster Fix: Christmas Carols Gets a Cleaner Split Screen
#Commodore64 #C64 #8BitShowAndTell #RetroComputing #RetroHardware #VICII #SID #C64Coding #Commodore1541 #ChristmasCarols

theoasisbbs.com/c64-carol-ra...
C64 Carol Raster Fix
C64 Carol Raster Fix shows Robin patching 1984 Christmas Carols, adding a PA loader, and stabilizing split-screen graphics on real C64s.
theoasisbbs.com
December 30, 2025 at 2:35 PM
theoasisbbs.bsky.social
What Is CBM-64 “FIX”? A Curious Commodore 64 Cassette Investigated
#Commodore64 #C64 #RetroComputing #8BitShowAndTell #VintageTech #RetroGaming #CassetteSoftware #CBMFIX #Technicom #ComputerHistory

theoasisbbs.com/what-is-cbm-...
What Is CBM-64 “FIX”? A Curious Commodore 64 Cassette Investigated - The Oasis BBS
Robin from 8-Bit Show and Tell explores a mysterious Commodore 64 cassette titled CBM-64 “FIX.” Was it an official fix from Commodore? What does it actually do?
theoasisbbs.com
March 28, 2025 at 1:30 PM
theoasisbbs.bsky.social
8-Bit Show and Tell Explains a Two-POKE C64 Puzzle
#Commodore64 #C64 #8BitShowAndTell #RetroComputing #Commodore #C64BASIC
theoasisbbs.com/8-bit-show-a...
8-Bit Show and Tell Explains a Two-POKE C64 Puzzle - The Oasis BBS
8-Bit Show and Tell investigates a C64 Two POKE Puzzle involving interrupts, CIA registers, keyboard scanning, and screen scrolling.
theoasisbbs.com
August 21, 2026 at 1:38 PM
theoasisbbs.bsky.social
Commodore Treasure Haul: 8-Bit Show and Tell’s Epic Rescue of Retro History
#Commodore64 #VIC20 #8BitShowAndTell #RetroComputing #TPUG #Transactor #CommodoreHistory #RetroTech

theoasisbbs.com/commodore-tr...
Commodore Treasure Haul
Robin from 8-Bit Show and Tell shares a wild story of near disaster, family, and a massive Commodore treasure haul.
theoasisbbs.com
November 7, 2025 at 6:29 PM
theoasisbbs.bsky.social
Microtonal SID Music Tested With C64 BASIC
#MicrotonalSIDMusic #Commodore64 #SIDChip #C64BASIC #8BitShowAndTell #Chiptune #RetroComputing #AngineDePoitrine

theoasisbbs.com/microtonal-s...
Microtonal SID Music Tested With C64 BASIC - The Oasis BBS
Robin from 8-Bit Show And Tell tests Microtonal SID Music with C64 BASIC, 24-tone pitch math, and an ADP bassline demo.
theoasisbbs.com
May 4, 2026 at 12:37 PM
theoasisbbs.bsky.social
Kickman C64 Mysteries Reveal HAL Clues and a PAL Speed Bug
#Kickman #Commodore64 #C64 #8BitShowAndTell #HALLaboratory #MAXMachine #RetroComputing #VICII

theoasisbbs.com/kickman-c64-...
Kickman C64 Mysteries Reveal HAL Clues and a PAL Speed Bug - The Oasis BBS
Kickman C64 mysteries lead Robin through HAL Laboratory clues, disputed versions, a wild PAL speed bug, and a small six-byte code fix.
theoasisbbs.com
July 9, 2026 at 1:05 PM
theoasisbbs.bsky.social
Optimizing a Bouncing Pixel Ball Sprite in C64 BASIC – 8-Bit Show And Tell
#C64 #Commodore64 #8BitShowAndTell #RetroCoding #C64BASIC #SpriteAnimation #CBMPrgStudio #RetroGaming

theoasisbbs.com/optimizing-a...
Optimizing a Bouncing Pixel Ball Sprite in C64 BASIC – 8-Bit Show And Tell - The Oasis BBS
Robin from 8-Bit Show And Tell tackles a C64 BASIC challenge: animating a pixel ball bouncing inside a sprite while moving around the screen.
theoasisbbs.com
February 25, 2025 at 2:13 PM
theoasisbbs.bsky.social
Unleashing the Power of the Commodore 64’s Border Color Register
#Commodore64 #RetroComputing #8BitShowAndTell #C64 #VICII #RetroGaming #8BitTech

theoasisbbs.com/unleashing-t...
Unleashing the Power of the Commodore 64’s Border Color Register - The Oasis BBS
The VIC-II video chip in the Commodore 64 has a trick up its sleeve—turning the entire screen into a single color. But with CPU cycle counting and register manipulation, it becomes much more than that...
theoasisbbs.com
March 6, 2025 at 2:29 PM
shortformernie.bsky.social
Here’s something pretty awesome: @8BitShowAndTell uncovered an Easter egg that Satoru Iwata, the late former president of @Nintendo, included in a VIC-20 game he programmed nearly 40 years ago.

Watch him break it down here: https://www.youtube.com/watch?v=QJCwsi6O5xU
June 23, 2020 at 1:03 PM
shortformernie.bsky.social
@fwa @8BitShowAndTell Should note that @8BitShowAndTell just found another one: https://www.youtube.com/watch?v=ZAVuvXlbs4Q
November 7, 2019 at 3:17 PM
shortformernie.bsky.social
@motherboard @8BitShowAndTell It was much more common to find such programs hidden on cassette tapes in the UK, and even then for the ZX Spectrum. But floppy disks won out as the storage medium of choice for C64 owners. So this may be a one-of-a-kind Easter egg.
October 21, 2019 at 1:07 PM
shortformernie.bsky.social
Got a fresh one up on @motherboard this morning. This time I highlight a cool find by @8BitShowAndTell: A C64 program hidden in a vinyl record. https://www.vice.com/en/article/this-christian-rock-record-is-hiding-a-secret-commodore-64-program/
October 21, 2019 at 1:04 PM
mrdoornbos.bsky.social
Here’s my shot at #10print on the TI-74. It has the ASCII table, but curiously, character 92, usually the backslash, is the Yen symbol on this device, so I used other characters.
It’s my continuation of my “10print on all the things” quest. This is essentially @8bitshowandtell ‘s fault.
November 24, 2024 at 9:23 PM
setsideb.com
Mechanical Hand-Held Games https://setsideb.com/mechanical-hand-held-games/ #8bitshowandtell# ElectroMechanical# handheld# retro
November 29, 2025 at 3:00 PM
setsideb.com
8-Bit Show-And-Tell Finds Fake C64 Programming Books On Amazon https://setsideb.com/8-bit-show-and-tell-takes-down-fake-c64-programming-books/ #8bitshowandtell# Amazon# c64# PiratedBooks
May 24, 2025 at 2:00 PM