Using Commodore 64 BASIC SYS Parameters in Machine Language 8-Bit Show And Tell 2024-10-18 | Using Commodore 64 BASIC SYS Parameters in Machine Language
Best Ever VIC-20 Cart? Penultimate+2 8-Bit Show And Tell 2023-07-29 | One Commodore VIC-20 cartridge to rule them all? Tynemouth Software and The Future Was 8-Bit have teamed up to make the Penultimate+2 cartridge which contains over 200 VIC-20 games spanning from the original games made in Japan by Hal Laboratory in 1980 to modern games made in the present day. In addition it contains useful utilities, programming languages, diagnostic tools, flexible software-controlled RAM upgrades and even more. In this first video we have a look at a fraction of the games available. We'll follow up in another video with a detailed look at all the rest of the cartridge's features.Want your own Penultimate+2?Buy it here: plant42.co.uk/product/vic20-penultimate-plus-twoOr here: thefuturewas8bit.com/vic20-penultimate-plus-two.htmlTynemouth Software Blog: http://blog.tynemouthsoftware.co.uk/2023/06/penultimate-plus-2-cartridge.htmlMy video about TFW8b's VIC-20 cassette releases: youtu.be/0o9_E8NO27E My look at many VIC-20 games and easter eggs by Andy Finkel, including the Scott Adams Adventure series: youtu.be/VhvUWQPYCW0 To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Intro, NTSC VIC-202:57 Main Menu, quick overview6:27 Games A-Z, navigation, filters8:11 Avenger, Demon Attack, Frogger12:33 Hunchy, Jelly Monsters18:15 Jupiter Lander, River Rescue23:37 Splatform27:43 PAL VIC-20, Avenger revisited30:24 Games By Category, Scramble, Pink Windmill Blitz34:52 3D Monster Maze, Tut Tut, Tale(s) of Sara Christina40:42 Adventure Land (text), Clowns, Vicatone48:35 Rods Random ROM Runner, Cyclons, Snake Pit50:55 Boot to Random, Spaceship Minus 1, Forbidden Tower54:31 Back to NTSC, Super Starship Space Attack, Cosmic Snake57:33 Conclusion, Links, Thanks!
Cracking a C64 Game From Cassette: Livingstone, I Presume? 8-Bit Show And Tell 2023-07-10 | In a previous video we took a look at the crash in the Commodore 64 port of the Operasoft game "Livingstone, I Presume?", unraveling the cause of the crash and coming up with a live-patch to fix the problem. This time we learn how to "crack" the game from the original cassette so we can patch the game and save it to disk permanently fixed, rather than having to re-patch the game every time it's loaded. Check the video description for links to everything I reference.The previous video about the Livingstone, I Presume? bug: youtu.be/c4OQPojiEOoFurther Reading / Info:LOAD"*",8,1 VS. video: youtu.be/b3j5k1rlhow DisC=overy #3: http://unusedino.de/ec64/technical/discovery/issue3.html Autostart: codebase64.org/doku.php?id=base:autostarting_disk_filesMore autostart: http://www.sizecoding.org/wiki/Commodore_64#AutostartExomizer: bitbucket.org/magli143/exomizer/wiki/HomePucrunch: http://a1bert.kapsi.fi/Dev/pucrunch/Byte-Bonker V1.5: https://csdb.dk/release/?id=49169Cruncher AB: https://csdb.dk/release/?id=48475ECA Compactor/Linker: https://csdb.dk/release/?id=18026TapeTool: https://csdb.dk/release/?id=194915To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Intro - last time2:50 Why not just SAVE? Autostart4:31 Tape program header modifications8:33 Examining the loader16:40 Preventing game execution & loading19:49 Examining, patching, saving game to disk24:38 Testing cracked game, two problems26:14 Crunchers to the rescue31:14 Does the cheat work now?33:23 Tape re-mastering? Thanks!
Hello World on Commodore 64 in Assembly Language, Machine Code 8-Bit Show And Tell 2023-06-28 | Today we look at programming the classic "Hello World" program on the Commodore 64. First we show the trivial BASIC version, and then 6502/6510 Assembly Language, Machine Language, and Machine Code variations in different environments: Turbo Macro Pro v1.2, SuperMON by Jim Butterfield, and a BASIC loader, respectively. To keep it interesting, each environment has a slightly different approach to displaying the Hello World text. No ChatGPT was involved in the making of this video.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OACheck out the many related links for more information and reference materials:Today's code D64: 8bitshowandtell.com/downloads/helloworld.d64BASIC playlist: youtube.com/playlist?list=PLvW2ZMbxgP9zeIRCpOFSKby9Q6mo0BSCO TFW8b Kung Fu-Flash: thefuturewas8bit.com/kung-fu-flash.html Adrian's SnappyROM: github.com/adrianglz64/snappyrom Machine Language Monitor info: youtu.be/7mtpxmQbs9E Complete Inner Space Anthology: archive.org/details/Complete_Commodore_Inner_Space_Anthology_The_1985-03_Transactor_Publishing Commodore 64 Programmer's Reference Guide: archive.org/details/commodore-64-programmers-reference-guide_202205 Index:0:00 Hello World - not ChatGPT!2:31 BASIC version4:11 SnappyROM - starting Turbo Macro Pro5:48 Assembly Language with TMP12:29 SuperMon 64: Hello World data16:20 Machine Language with SuperMon 6423:19 Machine Code with BASIC loader31:39 Thanks
One Bad Byte Broke This Game: Commodore 64s Livingstone, I Presume? 8-Bit Show And Tell 2023-05-29 | "Livingstone, I Presume?" is a puzzle platform adventure that had me entranced as a kid. Unfortunately, the Commodore 64 version I played always crashed at a particular point well into the game. I thought it was a bug in my pirated copy, but later I've learned even the original store-bought version had the bug. Today we take a look at the game and the cause of the crash, and see if we can fix it and get further into the game.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Intro1:48 Loading & reading the manual4:57 Playing the game9:00 Intermission: infinite lives patch10:12 More gameplay14:02 The crash & Lemon64 game reviews17:35 Clue: No C64 Infinite lives?19:53 Hunting for OPERA24:06 The bad patch27:02 Comparing with "Livingstone Supongo?"30:05 Fixing one bad byte32:38 Finally beyond the crashing bridge35:57 Summary and future improvements38:38 Thanks!
One-Line Bouncing Ball: Commodore 64 BASIC 8-Bit Show And Tell 2023-05-21 | Besides the famous 10 PRINT, one of my favourite type-in programs from the Commodore 64 User's Guide is "More Bouncing Balls" in which a ball bounces off the borders of the screen. Inspired by Josip Retro Bits' 2-line version of this program, I attempt to squeeze it down to one line, with some other diversions along the way.Check out Josip's channel for more C64 programming: youtube.com/@JosipRetroBitsTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 The Commodore 64 User's Guide2:52 Adding a clear screen to 10 PRINT7:57 More Bouncing Balls14:32 Josip Retro Bits' 2-line version22:23 A different approach: what's it doing?26:41 Implementing a simple oscillator32:25 POKEing the ball back in!35:44 The final one-line version38:00 Potential improvements?40:25 Thanks to Josip, my patrons, and you!
I turned my Atari 2600 into a REAL COMPUTER with a SpectraVideo CompuMate 8-Bit Show And Tell 2023-04-15 | The SpectraVideo CompuMate is an add-on keyboard and cartridge for the Atari 2600 (formerly Atari VCS) that promises to turn your game console into a Powerful Personal Computer. It includes the BASIC programming language, and modes to allow creation of both art and music. Does it live up to the promise? Can we program 10 PRINT with it?To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALink to CompuMate manual: archive.org/details/spectravideo-compumate-users-manualIndex:0:00 A look around the box2:50 A look at the keyboard and cartridge4:38 Installing on "Light Sixer" Atari 26006:11 Comparing to ZX81 Part 18:12 Power up, Microsoft BASIC?9:54 Hello World12:18 Why was this made?13:30 Graphic Mode aka MAGIC EASEL18:18 Music Mode aka MUSIC COMPOSER27:23 10 PRINT? More ZX81 comparisons.33:19 More CompuMate BASIC quirks36:18 Slightly good things38:55 A pretty bad bug!39:59 More shortcomings - 16K BASIC?42:50 Buy the SpectraVideo SV-318?44:17 More? And thanks!
My New Favourite C64 One-Liner? 8-Bit Show And Tell 2023-02-19 | Programmer Ian Witham created a short Commodore 64 BASIC program that procedurally generates a very interesting 3D landscape. We examine how it works, and then focus our efforts on optimizing the program so it can fit in a single 80-column line of code.Subscribe to Ian's channel: youtube.com/@IanWithamIan's original program: youtu.be/ILnhj8TNiDc About Commodore 64 BASIC Abbreviations: youtu.be/AYhuPM0KH1o To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Running Ian's Original Program2:58 Code Walkthrough Lines 5-207:55 Lines 30-12:45 Subscribe to Ian's channel13:29 Abbreviating our way to one-line? No.17:30 My original one-line attempt walkthrough24:25 RUNning the first one-attempt, more commentary28:22 shrydar's random optimization!32:49 Ian's POKE 199 optimization36:45 An imperfect 62-character attempt39:37 Ian's POS() optimization42:57 A few more speed optimizations45:25 Thanks!
The Tiny Type-In Hiding In A 40-Year-Old Blank Computer Cassette 8-Bit Show And Tell 2023-01-20 | Is there a tiny type-in program listing hiding inside a Thorn EMI EMITAPE Computer Cassette? I tracked a brand new, unopened C20 tape down, thanks to a tip from viewer EdwardianTeaChest, and opened the early 1982-vintage cassette. There are in fact two listings, one for the Commodore VIC-20, and another for the Sinclair ZX81. Join me as we type these programs in on vintage hardware, and figure out what they do.The closing credits song can be heard (and watched) in full here:youtu.be/djQ1Qk-9xboTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OATitle:0:00 EMITAPE Computer Cassette C20 + Opening3:40 Examining the cassette and j-card notes6:46 Fun Program found!7:46 Commodore VIC-20 Type-In12:17 Saving program to EMITAPE13:41 RUNning on VIC-20 15:17 Sinclair ZX81 Type-In23:04 RUNning on ZX8125:10 In Conclusion: Thanks
Commodore-Inspired Vinyl Records and Compact Discs 8-Bit Show And Tell 2022-12-31 | Let's take a look at some of my collection of vinyl records and CDs that are somehow inspired by or connected to Commodore computers. One Intelligent Dance Music album is VIC-20 themed and even includes a type-in program that we try! Another is named after the Commodore PET, or my favourite Commodore magazine. Another has a Commodore 64 program hidden on it that promises the greatest Telespeil ever on the next album! Another is a synth record about Kayak Championships published by Commodore that borrows from Phil Collins in a very strange way. Or another song is about using your Commodore 64 for free long distance calls and getting busted by the Feds. Much variety, but all of it is somehow Commodore-connected.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAMy "Data on Vinyl Records & Music CDs" Playlist:youtube.com/playlist?list=PLvW2ZMbxgP9xqddQRgmd3rmhW6giZz5OOIndex:0:00 Intro & Recap of Commodore-inspired albums2:28 Transactor by CATfISH6:48 The Race by VANLUKAS, published by Commodore11:08 O Cubano by Flucht Nach Vorn18:34 Successful LOAD21:41 Talking Is Over - My Worst Purchase Ever?24:14 Module 2 by Bochum Welt27:38 VIC-20 BASIC Time!35:14 Simon BASIC by Barcelona39:02 The Connectedness of Things - Thanks!
Code Review a Novel? C64 BASIC in The Impossible Fortress 8-Bit Show And Tell 2022-12-08 | The Impossible Fortress is a novel by Jason Rekulak about the (mis)adventures of a 14-year-old Commodore 64 programmer in 1987. Each chapter opens with a snippet of C64 BASIC code from the video game he's writing, with the help of a friend he meets during the story. I get the dumb idea to type in, comment upon, and when reasonable, fix the code from all 34 chapters in one stupidly long video. It's almost like a live stream, but I actually edited out over 30 minutes just to make it less painful. Honest. My editing software says I made 2259 edits, but who would believe that?To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks mentioned:Jason Rekulak's website: http://www.jasonrekulak.com/impossiblefortress The Impossible Fortress web game: http://www.jasonrekulak.com/gameInto The Vertical Blank: intotheverticalblank.com Foone's analysis of The Eternal Castle hoax: twitter.com/Foone/status/1081746182425071616Index:0:00 A Novel2:14 An excerpt from the novel6:23 C64 BASIC as a literary device?8:27 Ch. 1 - Welcome Screen12:27 Ch. 2 - Establishing Difficulty15:43 Ch. 3 - Transfer Character Set18:45 Ch. 4 - Play Theme Music21:45 Ch. 5 - Introduce Variables26:51 Ch. 6 - Instructions29:47 Ch. 7 - Draw Hero Sprite33:40 Ch. 8 - Draw Guard 1 Sprite36:07 Ch. 9 - Control Hero39:10 Ch. 10 - Draw Princess Sprite41:08 Ch. 11 - Draw Guard 2 Sprite43:12 Ch. 12 - Advance Countdown47:25 Ch. 13 - Error Buzzer50:19 Ch. 14 - Assign Ranking$53:18 Ch. 15 - Boost Score55:14 Ch. 16 - Out of Time57:24 Ch. 17 - Hero Attacks1:00:30 Ch. 18 - Bonus Life1:03:12 Ch. 19 - Victory Screen1:06:11 Ch. 20 - Victory Theme Music1:08:44 Ch. 21 - Pause Game1:10:54 Ch. 22 - Fortress is Breached1:13:31 Ch. 23 - Alarm Sound1:15:53 Ch. 24 - Captured By Guards1:20:53 Ch. 25 - Reset Score To Zero1:22:41 Ch. 26 - Clear Memory1:25:42 Ch. 27 - Draw New Hero1:27:18 Ch. 28 - Start Bonus Level1:29:45 Ch. 29 - Draw New Guards1:31:01 Ch. 30 - Draw New Environment1:34:22 Ch. 31 - Draw New Fortress1:37:26 Ch. 32 - Repeat Siren SFX1:41:11 Ch. 33 - Game Over1:44:11 Ch. 34 - Play Again??1:46:55 A Note About The Code & Acknowledgments1:49:09 The Eternal Castle: Inspired by The Impossible Fortress?1:56:29 In Conclusion, Thanks, & Credits2:00:01 The Impossible Fortress Gameplay
Super Secret Coded Message (1988) Floppy Disk: Solving Information Societys Puzzle 8-Bit Show And Tell 2022-11-19 | We take a look at a rare MS-DOS floppy disk containing a Super Secret Coded Message from the band Information Society (INSOC) in 1988. After some initial problems reading the disk, we run the program and figure out the secret code to access The Message, with a bit of help from an ancient Commodore 64 emulator. Suspecting there's more going on, we then examine the helpfully included C source code, and learn of a backdoor code that reveals the true extent of Information Society's plan for the future.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OADownload the Super Secret Coded Message files here:8bitshowandtell.com/downloads/insoc.zipLinks to previous videos featuring Information Society:CD+G disc running on CDTV: youtu.be/3oEL5vmeHg4Decoding 300BPS,N,8,1: youtu.be/bVFem3I9B9wIndex:0:00 About the disk and INSOC2:43 Loading ATTEMPT #1 - cleaning6:02 ATTEMPT #2 - copying8:17 Running INSOC.EXE11:05 Instructions for obtaining Secret Code and Message15:22 Using C64S Commdore 64 Emulator to calculate secret code18:44 The Super Secret Coded Message20:32 Is there more? Examining C source code23:57 The Resticted Information.26:25 Thanks!
An Amiga Hiding in a Tower of Power: Commodore CDTV in a 1990s Hi-Fi Stack 8-Bit Show And Tell 2022-10-27 | Even though it was essentially an Amiga 500 with a CD-ROM drive hiding inside a hi-fi stereo component case, Commodore left the Amiga name off the CDTV because they didn't want it to be considered a computer; instead they wanted it in your living room, hooked up to your high-end entertainment system's television and speakers. In many ways, the CDTV was forward-thinking, but it did not sell well and in the end most surplus units were sold bundled with a keyboard, mouse, and floppy drive, ironically, as Amiga computers. We take a look at the CDTV in its originally intended context as part of a 1990s home theatre, and try some of the many abilities of this device, including playing CDXL digital movies, CD+G CDs, early interactive multimedia encyclopedias, games, the wireless controller, and of course hunt for the Easter Egg hiding in the preferences screen.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAThanks to Mr Guru for this correction: Jim Brain dumped a different variant of the 6500/1, not the one from the CDTV. The CDTV version was archived another way. Here's some relevant links: cdtvland.com/2022/06/28/cdtv-6500-and-lc6554h-roms-dumpede4aws.silverdr.com/hacks/6500_1http://www.amiga-stuff.com/hardware/6500_1.htmlOther related links:https://myoldcomputer.nl/Files/Datasheet/mos_6525_tpi.pdfpdf1.alldatasheet.com/datasheet-pdf/view/40724/SANYO/LC6554H.htmlhttp://archive.6502.org/datasheets/mos_6500-1_one-chip_microcomputer_oct_1986.pdfIndex:0:00 My 1990s Audio/Visual Stack0:48 Sony Compact Disc Player CDP-CX355 300 CD Changer3:07 Kenwood AV Surround Receiver Receiver VR-205 3:57 Pioneer Double Cassette Deck CT-1270WR4:25 JVC Hi-Fi VCR HR-VP676U5:23 Commodore Dynamic Total Vision background and front panel8:45 Commodore CDTV Remote Controller & Preferences10:33 CDTV Easter Egg!!12:37 The New Grolier Electronic Encyclopedia16:48 Power Pinball From KarmaSoft18:38 Playing a CD+Graphics Audio CD: Information Society22:38 CDXL Movie: "NASA... the 25th Year"25:50 Back of the Stack & CDTV Back Panel28:05 Deluxe Music Construction Set: Booting From Floppy30:22 More CDTV History to Bach Fugue in G Minor33:27 A quick look inside: LC6554H, 6500/137:16 Thanks, and... sorry!
Commodore 64 and 128 TIME: Exploration of TI and TI$ 8-Bit Show And Tell 2022-10-03 | We take our deepest look yet at the TI and TI$ "variables" on the Commodore 64 and 128: how they look like variables but are called functions and how they're not really either, how the clock is implemented, how TI works on both the Commodore 64 and 128,, some bugs and quirks in the implementation, dispelling myths about whether a jiffy is a different length on PAL vs. NTSC, and potential patches to fix the admittedly minor bugs. One byte changed in each of the KERNAL and BASIC ROMs!To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:C64 BASIC integers: youtu.be/wo14rDnGUbY WAITing for BASIC: youtu.be/iQbBlH6tHkIPagetable.com disassembly: pagetable.com/c64ref/c64disasm/#A9E0Toolkit BASIC 64: archive.org/details/COMPUTEs_VIC-20_and_Commodore_64_Tool_Kit_Basic_1984_COMPUTE_Publications/page/n195/mode/2upIndex:0:00 Another TIME0:58 Not really variables, not keywords - they're sort of functions!5:13 TI is derived from the KERNAL jiffy clock7:17 A Leap Jiffy11:17 60 jiffies per second - even on PAL machines!15:08 PAL Commodore 128: Raster driven jiffies!23:04 Can't assign TI25:03 Retrieving TI26:40 Retrieving TI$30:33 Assigning TI$, bug exploration33:42 TI$ assignment algorithm in BASIC40:06 Patching assignment bug44:50 Thanks!
Project Creators Talk at VCFMW 2022: Meatloaf, Amiga Video, 8-Bit Guy, Giant SX-64 8-Bit Show And Tell 2022-09-28 | Here's some on-the-floor conversations (interviews? demos?) I recorded while at the Vintage Computer Festival Midwest in September of 2022. I talk with: Jaime who is creating the Meatloaf Commodore wifi disk drive emulator; Greg who is getting his Amiga 1200 to display full screen video; David (The 8-Bit Guy) who brought the latest PETSCII Robots releases and the Commander X16 prototype; and finally Eric and his CBM SX-64 Ultimax project. It's a giant door-sized SX-64 keyboard and eventually, a giant matching SX-64 system.More info about these projects:Meatloaf drive emulator: meatloaf.ccFujiNet (related project to Meatloaf): https://fujinet.online/ Greg (Amiga video): youtube.com/channel/UCzmH1yTlm0daTN6R-jPEpSQThe 8-Bit Guy: the8bitguy.com Official VCF Midwest Channel: youtube.com/c/VCFMidwestTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Intro: On the floor at VCFMW 20221:30 Jaime / Meatloaf: Commodore Drive and Wifi Modem Emulator13:52 Greg / Amiga 1200 Full-Screen video playback21:31 David (The 8-Bit Guy) / PETSCII Robots / Commander X1624:16 Eric / CBM SX-64 Ultimax32:33 Thanks
Vintage Computer Festival Midwest VCFMW 2022 - VCFMW17 8-Bit Show And Tell 2022-09-24 | When I said goodbye to my friends after the 2019 Vintage Computer Festival Midwest, I had no idea that I wouldn't be seeing them again for THREE YEARS. Due to the pandemic, the 2020 show was cancelled outright, and ongoing travel restrictions made my attendance in 2021 unfeasible. So it was with great excitement I returned for the 2022 show, which in one form or another has been an annual highlight for me since 1998. Join me as I take a tour around the show, meet some old and new friends, including some faces that will be familiar to many of you. VCFMW 2022Official VCF Midwest Channel: youtube.com/c/VCFMidwestTaylor and Amy Show: youtube.com/c/TheTaylorandAmyShowChannelCanadian Retro Things: youtube.com/c/CanadianRetroThingsRetroTech Chris: youtube.com/c/RetroTechChrisRetroCombs: youtube.com/stevencombsNybbles and Bytes: youtube.com/c/NybblesandBytesTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAI doubt I need to include links to these bigger channels, but just because:Adrian's Digital Basement: youtube.com/c/adriansdigitalbasementBen Heck: youtube.com/c/BenHeckHacksThe 8-Bit Guy: youtube.com/c/The8BitGuyComputer Clan: youtube.com/c/ComputerClanLGR: youtube.com/c/LazygamereviewsIndex:0:00 Intro1:49 Jim Happel's display + C64 40th Birthday3:16 VCFMW History4:40 Youtube Area9:47 More Youtube people11:25 Telephone Time15:52 Thoughts, Free Pile, Vendors 17:52 Greetings20:00 Final Announcements + PET Space Invaders21:44 Thanks!
The Great Donkey Kong Junior Hoax - Nintendo on Commodore 64 8-Bit Show And Tell 2022-09-03 | I've loved Nintendo games for decades, ever since I first saw Donkey Kong in the arcade in the early 1980s. Years before the NES, I wanted to play Mario and Donkey Kong games at home, and that was possible for some thanks to Atarisoft on home computers and Coleco for video game consoles. However, one favourite game wasn't available for my Commodore 64: Donkey Kong Junior. Or was it? One day a friend gave me a copied disk that promised to fulfill my dream, but instead it robbed me of 8-bit bliss for hours, days, maybe even years due to a cruel, mysterious, and suspicious password protection scheme. Join me as I use my Super Snapshot machine language monitor to get to the bottom of this mystery.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 I like Nintendo too!1:20 Nintendo on Atari, Commodore, etc.?3:43 Donkey Kong Jr. on C64 in 1984??6:10 Using Super Snapshot to solve the mystery8:55 What's the password?11:16 Is there a game at all? Sprite investigation14:34 Looking at the "game code"19:09 $8C00: some of the weirdest code I've ever seen22:06 What does this terrible code do?26:15 Page alignment: this was written in a monitor?29:51 Mr. SID's Donkey Kong Jr. (2014)31:19 Thanks!
Exploring 1982s Commodore MAX Machine: Commodore 64s Little Brother 8-Bit Show And Tell 2022-08-27 | In 1982 Commodore launched a system featuring a 6510 CPU, a VIC-II video chip, and a SID sound chip, and it wasn't a Commodore 64. It was the Commodore MAX, a low-end computer / games system intended to compete with the Atari VCS and Intellivision. While it only officially released in Japan, Commodore was very near to releasing it in the USA, Japan, and Germany too. Join me as we look at this obscure system, and compare it to its much more famous (and capable) big brother the Commodore 64.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:US Flyer: archive.org/details/commodore-max-machinePageTable's info: pagetable.com/?p=1158 Comparing Max game versions: c64preservation.com/dp.php?pg=ultimaxJan Beta's Max Video Mod: youtu.be/rmfatVkzAQI More info: http://www.multimax.co/max-machine/max-machine-and-commodore-64 Index:0:00 Silver Label Commodore 64 and MAX history3:10 Many names: VIC-10, VC-10, Ultimax, Max Machine5:00 Nearly released in the USA7:03 Comparing MAX and C64 ports, power supply10:50 Look at Keyboard16:14 Looking inside, MAX vs. C6426:20 Powering up to play some games27:28 Super Alien, Jupiter Lander33:02 Mole Attack, Bowling38:10 Kick Man, Wizard of Wor42:42 Music Machine, Music Maker, Road Race45:49 Next time: BASIC, and Thanks!
Commodore 64 Double Dragon: The Waist Gap (Sprite Multiplexing) 8-Bit Show And Tell 2022-08-06 | We take a look at the 1988 conversion of Double Dragon for the Commodore 64 which is somewhat notorious for poor playability and the infamous "waist gap" the developers issued a veiled apology for in the game manual. We take a look at the "sprite stacking techniques" (aka sprite multiplexing) used in the game - could this be improved on? Is this even what's really wrong with the game?To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OADownload my work disk: 8bitshowandtell.com/prg/dd.d64Instructions for use of Sprite Stacking Double Dragon work disk:Use a real or emulated C64 with a REUMount dd.d64LOAD"TMP+REU",8,1SYS 32768Back Arrow, Shift+R, L, load file: ddspritesload to: $5000 (use delete to remove the default $d000)Back Arrow, L to load one of the following recommended files:dd8 - this is my original solutiondd12 - optimized to eliminate gapdd19 - Allows use of keys 1-8 to cycle forward through sprites (shift to go backwards)Back Arrow, 3, S to assemble and startReset and SYS 320 to re-enter Turbo Macro ProIndex:0:00 C64 Double Dragon (1988)1:57 Waist gap and other flaws5:20 A Note From The Programmers7:25 Looking at the sprites10:18 Quick look at the interrupt handler16:40 Saving the sprites to disk18:39 DD8: sprite stacking / multiplexing attempt21:20 Code walkthrough24:55 Diversion: skin colour?26:03 Code initialization continued32:57 The tricky timing part35:54 DD12: No waist gaps?41:24 Conclusion & thanks!
39+ Year-Old Commodore 64 Easter Eggs Found! 8-Bit Show And Tell 2022-07-31 | Join me as we look through more of 1980s Commodore programmer Andy Finkel's games, this time on the Commodore MAX and Commodore 64, in a search for easter eggs, some of which have never been documented. Commodore policy prevented programmers from claiming authorship, so programmers found ways to hide their names within the programs.Part One with VIC-20 Easter Eggs: youtu.be/VhvUWQPYCW0To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAKung-Fu Flash Links:github.com/KimJorgensen/KungFuFlashthefuturewas8bit.com/kung-fu-flash.htmlEnd credits music is "53280" by Bedford Level Experiment: youtu.be/lHOxmXCSqAsWas titled: "New-Found 1982-1983 Easter Eggs: Commodore 64 and MAX by Andy Finkel"Index:0:00 Last time: VIC-20 Easter Eggs by Andy Finkel0:42 Brief Commodore MAX intro1:42 Music Composer / Music Maker4:55 Diversion: Scott Adams VIC-20 Adventures on C-646:48 Lazarian: my first cartridge game10:57 Blueprint15:00 Dragon's Den / DragonsDen18:08 International Tennis20:49 Andy Goes Amiga21:53 Thanks!
Newly Found 40+ Year-Old VIC-20 Easter Eggs by Commodore Programmer Andy Finkel 8-Bit Show And Tell 2022-07-22 | Join me as we look through 1980s Commodore programmer Andy Finkel's games and other programs in a search for easter eggs, some of which have never been documented. Commodore policy prevented programmers from claiming authorship, so programmers found ways to hide their names within the programs.Part Two with Commodore 64 and Max easter eggs: youtu.be/LfG7AQ2Rf9gTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:Magic Voice video: youtu.be/voi9o_oetc8Andy Finkel's Commodore job offer letter: archive.org/details/commodoreofferletterandyfinkel/mode/2up Andy Finkel's Game Credits (Incomplete): mobygames.com/developer/sheet/view/developerId,128537 Neil Harris (Andy Finkel's friend and Commodore co-worker) interview (original interview website was full of click spam so here's a clean copy): 8bitshowandtell.com/downloads/Interview%20Neil%20Harris.pdf Index:0:00 Intro 2:42 Car Chase / Biorhythm5:10 Loan/Mortgage Calculator9:51 Scott Adams Adventures15:20 Sargon II Chess18:22 GORF - Mystery solved?24:29 More paddle fun26:58 Omega Race29:48 Thanks to my patrons!
Making Five-A-Side Soccer for Commodore 64 More And Less Annoying 8-Bit Show And Tell 2022-07-02 | Back in 1985 (or '86) I bought Mastertronic's Five-A-Side Soccer for the Commodore 64 at the Zellers store and quickly became thoroughly annoyed with my new game. Or did I? I recreate the C64 game of my memories, and then set about modifying it to fix its major flaw. Along the way I learned a little about the game's system of digital sound sample playback, and have a few laughs as well.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:Jason Compton's review of Five-A-Side: lemon64.com/?mainurl=https%3A//www.lemon64.com/reviews/view.php%3Fid%3D910Download Voicemaster files (ftp link, may need to copy and paste): ftp://cbm8bit.com/hardware/convox-voice-masterAssociation Football: en.wikipedia.org/wiki/Names_for_association_footballIndex:0:00 Buying and playing Five-A-Side Soccer in 1985?2:54 I hope they have a new song...5:19 Memories vs. Reality7:19 What was I remembering? Anirog vs. Mastertronic9:07 Hockey vs. Soccer10:23 Soccer vs. Football - origin11:14 Modifying the game13:11 Player Initialization16:30 Sample tables18:56 Sample playback loop24:35 Goofy, unnecessary code25:35 Original Voicemaster playback code29:00 Patching to skip sample playback31:04 Testing the patch33:00 Conclusion & thanks
That Blank Space Before Numbers in Commodore 64 BASIC 8-Bit Show And Tell 2022-06-14 | When positive numbers are converted to strings for printing or manipulation in C64 BASIC, there's always a blank space in front. While minor in the grand scheme of things, it can make precise formatting annoying. What can be done about it?Error!! Thanks to my patron Jarno Mielikäinen I've learned that the ROM fast copy routine I demonstrate at 16:09 cannot generally be used from BASIC. Locations 95 and 96 (the start address of the copy) are also used by BASIC as temporary work space and get reset to 0, which means the copy start address always begins at location $0000. When copying in place as I demonstrate in this video, it works though $A000 bytes are copied in place unnecessarily. But if we were trying to copy (for example) $A000-$BFFF to $A001-$C000 (shift it up one byte) it would actually shift all of RAM from $0000-$BFFF up by one byte, surely crashing the computer. A short machine language program will need to be used to solve this, unfortunately.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 What's with that leading space when numbers are printed?2:06 Cursor work arounds4:42 Diversion: Embedded delete6:57 Using RIGHT$()8:42 Using MID$()10:27 Patching BASIC16:09 THIS IS WRONG - SEE VIDEO DESCRIPTION20:11 Thanks
39-Year-Old Pac-Man Bug (Partly?) Fixed: Commodore 64 8-Bit Show And Tell 2022-06-03 | I like playing Pac-Man on my Commodore 64, but it's always seemed strange to me that the title screen is so ugly. It appears to be caused by a bug in the code. Let's look into what's wrong with it, and attempt to fix it live on the C64. Even if it's not a perfect fix, it'll probably be educational and hopefully fun too!To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAExomizer (cruncher): bitbucket.org/magli143/exomizer/wiki/HomeLink to VICE docs for cartconv: vice-emu.sourceforge.io/vice_15.html End credit song is "School Evacuation" from the album "Place Without A Computer" by Bedford Level Experiment: bedfordlevelexperiment.bandcamp.com/album/place-without-a-computerIndex:0:00 C64 Pac-Man Title Screen Bug5:44 Cart Convert to PRG7:50 Fix Attempt One: Enable Multicolour mode11:02 Fix Attempt Two: Raster Interrupt18:08 Testing Attempt Two: Heads Get Bent19:46 Fix Attempt Three: Colour RAM Initialization26:19 Testing Attempt Three: More Yellow27:37 Making it RUNable: Exomizer31:04 Thanks!
A Real Computer? Exploring the Bally Computer System aka Astrocade 8-Bit Show And Tell 2022-05-21 | I was surprised to see the fairly obscure Bally Home Computer System video game console listed as a home computer in the 1979 Popular Science Buyer's Guide. Is it really a legitimate computing platform? Known by many names, including the Professional Arcade, and the Astrocade, we explore the system both as a video game console, and by attempting to program the famous 10 PRINT using its Astro BASIC videocade cassette cartridge.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA1979 Home Computer Buyer's Guide: youtu.be/xYMBg71SmxI End credits music is "Mind Virus" from the album "The Agony and the Ecstasy of Steve Jobs: A Soundtrack" by Bedford Level Experiment: bedfordlevelexperiment.bandcamp.com/album/the-agony-and-the-ecstasy-of-steve-jobs-a-soundtrack Resources / Further Reading on Bally:8bitworkshop.com/blog/platforms/astrocadeen.wikipedia.org/wiki/Bally_Astrocade#Astro_BASIC ballyalley.comIndex:0:00 The many names of Bally's console: some history2:35 A real home computer? BASIC, newsletters, 3rd party5:48 Videocades, cassettes, cartridges?8:39 A tour around the system: keypad, ports, expansion11:29 Specifications + product number13:13 Controllers + Gunfight + Checkmate17:26 Calculator + Scribbling19:07 Space Invaders / Astro Battle 200922:05 10 PRINT in Astro BASIC?28:30 Conclusion: great manual!30:27 Thanks!
Commodore 64 SID Oscillator Behaviour (Especially Noise) 8-Bit Show And Tell 2022-05-04 | Let's explore how the Commodore 64 SID (Sound Interface Device) oscillators behave, with special attention to the noise ("random") oscillator. We attempt to simulate the 23-bit Linear Feedback Shift Register with a BASIC program, and then fiddle with the SID's test bit to reset the oscillator and make it match the simulation. Robin From The Future also shows up to let you HEAR what these waveforms sound like on a real C64. The original cut of this video didn't have any SID audio!! Kinda weird experimental stuff! To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAEnd credits music is "Confounded to Corruption" by Bedford Level Experiment. Here's an earlier mix of it with C64 visuals: youtu.be/U1VKwqUWYa8Download the .d64 with the BASIC code:8bitshowandtell.com/downloads/sidlfsr.d64Waveform diagrams from Chapter 4 of Commodore 64 Programmer's Reference Guide:archive.org/details/c64-programmer-ref/page/n213/mode/2upInteresting reading on the noise waveform:http://www.oxyron.de/html/registers_sid.htmlhttps://csdb.dk/forums/?roomid=11&topicid=118693&showallposts=1http://www.dekadence64.org/sidwav.txtcodebase64.org/doku.php?id=base:noise_waveformLinear Feedback Shift Registers article on Wikipedia:http://en.wikipedia.org/wiki/Linear_feedback_shift_registerOptimal taps to choose for different length LFSRs on Page 5. NOTE: the bit numbers in this document are 1-based while I've used 0-based bit numbers in this video. Subtract 1 from the numbers in the document for use in my BASIC program.xilinx.com/support/documentation/application_notes/xapp052.pdfIndex:0:00 SID Oscillator 3 Output Program3:42 Triangle Waveform5:45 Robin From The Future8:38 Sawtooth Waveform10:07 Pulse Waveform13:48 Noise Waveform16:31 Internal 24-bit Oscillators18:48 BASIC SID LFSR Simulation output21:40 BASIC code walkthrough (section 1)24:30 Explaining the taps28:38 BASIC code walkthrough (section 2)31:50 SID Test Bit: Resetting the oscillator35:35 Is this riveting or what?? Trial & error.41:49 Future ideas: SuperCPU?45:00 Thanks!
Ten Great Commodore 128 BASIC Improvements Over The C64 8-Bit Show And Tell 2022-04-27 | As great as the Commodore 64 is, there were a lot of complaints about the lack of features in its built-in BASIC 2. The Commodore 128's BASIC 7 improved upon it in many ways, and today we'll take a look at some of the best.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAMany Links:I was interviewed by Clicky/CityXen: youtu.be/-bmfEoFLoRoCommodore 128 Secrets, Bugs, and Easter Eggs: youtu.be/pvB6YnE0gwcJoin the Commodore 128 Escape Club: youtu.be/fo11D_rUN_MC128 BASIC Hack: Playing Digital Samples: youtu.be/hpkJRZZL6BwDebugging C128 BASIC with TRON, TRAP, and More: youtu.be/D11AuAl5T-sHow To Use a 6502 Machine Language Monitor: youtu.be/7mtpxmQbs9EXYZZY: en.wikipedia.org/wiki/Xyzzy_(computing)Commodore 128 Programmer's Reference Guide: archive.org/details/C128_Programmers_Reference_Guide_1986_Bamtam_Books/mode/2upIndex:0:00 Intro1:33 1. Screen Editor4:41 2. Sprites9:16 3. Music11:58 4. Graphics16:46 5. Windows18:30 6. Less Spaghetti24:14 7. Utilities25:39 8. Debug30:40 9. Monitor35:59 10. Disk Commands41:40 The cost of BASIC 7: Speed43:25 Thanks!
Printing Binary in BASIC and Assembly on Commodore 64 8-Bit Show And Tell 2022-04-04 | I wanted to print binary numbers on the Commodore 64 from BASIC. When I didn't find a ready-made solution, I made my own in BASIC. Then I tried to optimize it for speed. Then I coded it in 6510 assembly language on a real C64. But will it benchmark faster?To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OADownload .d64 of today's code: 8bitshowandtell.com/downloads/binary.d64Previous SYS Params video: youtu.be/3ZV8LtpMbvA Index:0:00 Why I want to print binary values2:25 BASIC1: The BASIC benchmarking framework 12.52s5:11 BASIC2: e5frog's algorithm 52.95s7:52 BASIC3: Fixed output 58.78s8:40 BASIC4: Decimal pretending to be binary 96.85s11:20 BASIC5: "Cheating" with precalculations 35.97s15:28 BASIC6: Direct to characters 35.93s17:10 BASIC7: Eliminate a comparison 31.43s17:47 BASIC8: GOTO optimization 28.4s18:35 BASIC9: Leading zeros "optimization" 33.63s21:54 BASIC10: Precalc all strings! 20.78s + 13.17s25:02 Turbo Macro Pro time: binary.s walkthrough32:12 BASIC11: Benchmark assembly from BASIC 13.68s34:50 Joystick time - thanks Carsten!37:30 Thanks
1979 Home Computer Buyers Guide: Apple II, Commodore PET, TRS-80, and The Very Obscure! 8-Bit Show And Tell 2022-03-22 | Let's take a close look at the Home Computer Buyer's Guide that Popular Science published in their March 1979 issue. Their top concerns were: what programming language did each computer ship with, did they have enough RAM (you need more if you're loading the language from cassette or disk rather than running it from ROM!), and did it allow for later add-ons via ports and slots? Computers considered include the well-known "trinity" of Apple II, Commodore PET, and TRS-80, and many more machines that range from rare to completely forgotten: Compucolor, VideoBrain, Sol, Heath, Interact, Bally, Sorcerer, RCA VIP, PeCos One, Challenger. Which one would you purchase? To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAA few clips in this video were taken from my previous video "Vintage Computer Festival Midwest 14 - Video Montage Tour" from 2019: youtu.be/kdYQbRnL2Ug I'm pretty sure there's proof in that video that I *have* seen more of these computers in-person before, but I've just forgotten!Index0:00 Intro - Popular Science, March 19792:37 Check before you buy5:07 Pictures: Apple II, Compucolor, VideoBrain9:22 Processor Tech Sol, Commodore PET, Heath10:24 Interact Computer, Bally Astrocade, Exidy Sorcerer, RCA VIP11:47 APF PeCos One, Ohio Scientific Challenger14:48 Memory19:24 Add-ons20:54 Manufacturers List21:23 PS Buyer's Guide To Home Computers29:07 Which would you have bought? And thanks!
Simple Commodore 64 Disk Protection: Copy that Floppy, Remove Anti-Piracy Measures 8-Bit Show And Tell 2022-03-09 | The "I Am The C-64" tutorial programs for the Commodore 64 have anti-piracy disk copy protection, despite being written in BASIC, and it's enough to thwart simple "fast" disk copiers. We go through the steps of making a copy of the disk on a real 1541 and KAO 5.25" floppy disk with the help of Maverick's disk nybbler, and then go a step further and "de-protect" the program so a nybbler is no longer necessary. To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAThe previous videos about "I Am The C-64":Volumes 1-3: youtu.be/Lw-pYyniNeMVolumes 4-6: youtu.be/SWhxah7tcsgList of 1541 Error Codes:archive.org/details/Commodore_1541_Disk_Drive_Users_Guide_1982-09_Commodore/page/n57/mode/2upIndex:0:00 Demonstrating the copy protection1:56 Making a backup with Maverick Data Copier7:58 Making a working backup with GCR Nybble Copier13:07 De-protecting the program18:48 Testing our "crack"20:29 Thanks!
Epyx 1984 Preview Disk -or- What Is A Chromadisk? 8-Bit Show And Tell 2022-02-20 | The Epyx 1984 Preview Disk is one of the most interesting disks in my Commodore 64 collection. Not only is it a very early example of a video game company releasing playable, cut-down, or time-limited preview versions of its games, which later became an industry standard, but it's also a rare example of a Chromadisk, a unique manufacturing process that allowed full-colour printing directly on a disk jacket. This process, developed by a San Jose, California company called Memron, allowed each disk to potentially be a work of art, rather than just another black disk with a label stuck to it. In this video we'll uncover the story of Memron, and then look at the preview game demos on this particular Chromadisk, which include Epyx's smash 1984 hits Impossible Mission and Summer Games, along with some other lesser-known games. Finally, we break out the Super Snapshot machine language monitor and attempt to disable the 90 second playable time-limit on Break Dance.Twitter / Blogs mentioned:Kay Savetz: twitter.com/KaySavetz/status/1027211711843987456/photo/1 Paul Rickards: twitter.com/paulrickards/status/1258157507983409152 JB Retro Blog: jbretro.wordpress.com/2018/11/11/chromadisk To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAMagazines shown:archive.org/details/creativecomputing-1985-02/page/n13/mode/2uparchive.org/details/PersonalComputing198403/page/n231/mode/2uparchive.org/details/stx_Easy_Home_Computer_magazine_1984-06/page/12/mode/2up archive.org/details/sim_software-magazine_1984-06_4_6/page/4/mode/2up archive.org/details/yc_1985_06/page/118/mode/2up archive.org/details/apc_1987_11/page/302/mode/2up Index:0:00 Why this diskette is interesting1:58 What is a Memron Chromadisk?5:27 A few Chromadisk examples: Memo, Imagineering, MusiCalc9:11 Memron Australia, costs, patents?12:18 Epyx 1984 Preview Disk Instructions, Rebate13:57 1. Break Dance17:24 2. Impossible Mission20:14 3. Puzzle Panic23:10 4. Silicon Warrior25:14 5. Summer Games27:27 6. World's Greatest Baseball Game35:06 Removing Break Dance's 90 second limit39:21 Break Dancing Without Limits41:45 Conclusion and Thanks
The VIC-10 & VIC-30: Commodore UKs Cancelled Computers 8-Bit Show And Tell 2022-02-11 | In 1982, Commodore UK was planning a full range of home microcomputers to meet every budget. The VIC-20 was a success, and they wanted to add a VIC-10 at an even lower price point, and a 16K VIC-30 to sit below the upcoming top-end VIC-40, CBM-64 or VIC-64, which ended up being called the Commodore 64. But rapidly changing market conditions, led by the release of the ZX Spectrum, meant there was ultimately no place for the VIC-10 (aka Ultimax or Commodore Max Machine) in the UK, and the VIC-30 was quietly shelved. We'll look through several UK-based Commodore magazines from 1982 to figure out the story behind these little-known computers that were cancelled, relegating the Commodore VIC-30 to vapourware and the Commodore VIC-10 / MAX to only the Japanese market.Update: VIC-30 listed in a Commodore 1982-04-30 Hardware Status Report document contributed by Michael Tomczyk: archive.org/details/commodore-1982-04-30-hardware-status-report/mode/2upHuge thanks to Darren Foulds of Groo Tube for the artist's impressions of the VIC-30: youtube.com/c/grootubeCommodore International Historical Society: https://commodore.international/Secret Weapons of Commodore: floodgap.com/retrobits/ckb/secret/supervic.htmlTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAMagazines referenced:archive.org/details/your-computer-magazine-1982-07/page/n15/mode/1uparchive.org/details/Vic_Computing_Issue_007/page/3/mode/1uparchive.org/details/NH2021_Popular_Computing_Weekly_Issue820506.pdf/page/n3/mode/2uparchive.org/details/Vic_Computing_Issue_006/page/n18/mode/1uparchive.org/details/popular-computing-weekly-1982-05-13/page/n3/mode/2uparchive.org/details/Vic_Computing_Issue_015/page/n33/mode/2uparchive.org/details/Vic_Computing_Issue_017/page/n5/mode/2up?view=theaterIndex:0:00 The VIC-20 is a second-rate computer?1:10 Your Computer: Commodore blitz market with Vic-10, Vic-30, C-646:55 VIC Computing: Whither Vic?9:44 Popular Computing Weekly: Vic-10 and Vic-30 at Hanover Fair11:44 Vic-30 discreetly shelved13:58 Why was the VIC-30 cancelled?17:32 Thanks!
8-Bit Book Club: Tool Kit: BASIC and Kernal by COMPUTE! for Commodore 64 and VIC-20 8-Bit Show And Tell 2022-02-02 | I bought a box of Commodore books. After having a look at the unusual postage (my dad's a philatelist, eh?) we take a look through the box contents, and then focus on two books in particular. They're the Tool Kit series by Dan Heeb, which are very in-depth looks through the BASIC and KERNAL ROMs, with a focus on making use of these routines in our own machine language programs for both the Commodore 64 and VIC-20. This video was originally the Patreon exclusive for May 2021.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OACOMPUTE!'s VIC-20 and Commodore 64 Tool Kit: BASIC:archive.org/details/Compute_s_Vic-20_Commodore_64_Tool_kit_BasicCOMPUTE!'s VIC-20 and Commodore 64 Tool Kit: Kernel:archive.org/details/COMPUTEs_VIC-20_and_Commodore_64_Tool_Kit_Kernal_1985_COMPUTE_Publications_aEnd credits music is "The Second Coming" from the album "The Agony and the Ecstasy of Steve Jobs: A Soundtrack" by Bedford Level Experiment:bedfordlevelexperiment.bandcamp.com/album/the-agony-and-the-ecstasy-of-steve-jobs-a-soundtrackIndex:0:00 Stamp time!2:00 What's inside the box?6:10 Tool Kit: BASIC9:56 Table of Contents & Preface18:20 Part One21:44 Part Two: Detailed Descriptions25:10 Appendices26:55 Tool Kit: Kernal29:21 Table of Contents, Foreword, Preface32:51 Chapter 1-4: Interrupts & System Reset36:26 Chapter 5-7: Kernal, Misc., Screen Routines41:10 Chapter 8-10: Serial, RS-232, Tape I/O Routines45:58 Appendices, Index47:32 Summary & Thanks!
How To Use a 6502 Machine Language Monitor: TEDMON in the Commodore Plus/4 8-Bit Show And Tell 2022-01-29 | Today we'll look at TEDMON, which is a machine language monitor built into the Commodore Plus/4. But it has almost everything in common with monitors from throughout the Commodore 8-bit family, from SuperMon on the PET, to the Commodore 128's built-in monitor, to the machine code monitors in the Commodore 64's Action Replay and Super Snapshot. We'll go through every single command with examples of how they can be used, along with some insights into the relatively rare Plus/4. This video is made in conjunction with retroCombs' video series walking through the entire Plus/4 manual, check out the playlist link in the video description.RetroCombs' Plus/4 Encyclopedia video (I make an appearance!):youtu.be/zWa1s4q4I0sTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALink to retroCombs channel: youtube.com/stevencombsRetroCombs Plus/4 Playlist: youtube.com/playlist?list=PLRVBh2hjFTokz1IAmxM4ERr5ZJ-zTjFgn Plus/4 Manual: archive.org/details/Plus4UsersManual/page/n191/mode/2upLink to 10 PRINT ML: youtu.be/IPP-EMBQPhE Index:0:00 RetroCombs, monitors, TEDMON introduction2:44 How TEDMON got its name: TED and MON4:48 MONITOR: start from BASIC5:49 A: Assemble7:56 G: Go9:06 D, M: Disassemble, Memory13:09 Greater Than Symbol: Modify memory14:22 R, ;: Display and modify CPU registers18:22 F: Fill memory20:13 T,C: Transfer, Compare memory22:49 H,X: Hunt through memory, eXit26:56 S: Save28:33 L,V: Load, Verify30:06 Location $7F8: 0: Show ROM, $80: Show RAM31:45 Thanks to RetroCombs, and my patrons!
WAITing for BASIC on the Commodore 64 8-Bit Show And Tell 2022-01-21 | How can we make Commodore 64 BASIC pause for a specific time? We take a look at three techniques, including their strengths and weaknesses: 1) FOR/NEXT loops which are simple but somewhat inaccurate and not very CPU-accelerator-friendly, 2) polling the TIME variable which might be the best general approach, and 3) Using the esoteric WAIT command to watch particular bits in the C64's jiffy counter. Thanks to patron grymmjack for the question, and to Dr. Craig S. Bruce, Emily Christ, and Jarno Mielikäinen for their insight and help with the answers.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAEnd credits song is "Park Patrol" by Bedford Level Experiment. Check out the music video here: youtu.be/pA1MR3PuHxUIndex:0:00 Question: how to sleep/pause/wait in BASIC?0:23 1. FOR/NEXT loop7:18 Why not linear?11:55 2. Polling TI16:04 A bug in the TI technique20:50 3. WAIT 162,6424:26 Why not WAIT 162,60?29:50 Another WAIT approach30:59 Conclusion and thanks!
Machine Language 10 PRINT Size-Optimized for Commodore 64 8-Bit Show And Tell 2022-01-14 | Can we write a machine language version of the famous 10 PRINT BASIC program for the Commodore 64? How short can we make it? Thanks to viewer Peter for prompting this episode.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OADownload work disk:8bitshowandtell.com/downloads/10printml.d64End credits song is "53280" by Bedford Level Experiment. Check out the music video here: youtu.be/lHOxmXCSqAsIndex:0:00 10 PRINT again??2:01 ML1: Machine Language 10 PRINT7:57 ML2: Some optimizations10:32 Cheating with Carry?12:47 ML3: Random ROM?18:14 ML4: Raster Register Randomness20:48 ML5: CIA Timer23:00 ML6: Further failed optimization ideas25:59 Thanks to Peter, Patrons, and You
RAM Scan 64 - Early 1980s Glitch Art Code? 8-Bit Show And Tell 2022-01-03 | We take a look at the short "Ram Scan 64" program from the first issue of Transactor I ever bought, way back in 1984. I don't think I've seen it in action since I was 11 or 12, but was reminded of it in a strange dream after reading "Be an Interplanetary Spy" books before bed. After typing it in and running it, I attempt to disassemble (and understand it) on camera which may not have been a great idea, but I mostly get it figured out. Glitchy fun!To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:Transactor Vol.5 Issue 02: archive.org/details/transactor-magazines-v5-i02csbruce's Transactor Online Archive: http://csbruce.com/cbm/transactorNinja Glitch World: youtu.be/820Vy_df1TsEnd credits music is "Bit Pair" by Bedford Level Experiment. Check out the animated Tron-style video for the song by Darren "GrooTube" Foulds: youtu.be/Appmg64tZB0Index:0:00 Intro - Ram Scan in Transactor2:04 Typing it in6:27 Done typing now RUN it10:37 Some strange behaviour12:37 Finally... disassembly20:23 The short version21:15 Playing with it again25:44 Some thoughts27:16 Thanks
A Very Commodore 64 Christmas Special 8-Bit Show And Tell 2021-12-24 | Join me as I share some of my favourite Christmas-themed Commodore 64 demos & games, and also show the 3 C64 Christmas song videos I've made over the years, with some behind-the-scenes info. As always, this video is indexed with chapters so you can skip over stuff you don't like! Merry Christmas to all my viewers; thanks for helping make 2021 better than it would have been otherwise.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:mikerichmond.itch.io/freeze64bedfordlevelexperiment.bandcamp.com/album/a-very-commodore-64-christmasIndex0:00 Commodore 64 Christmas Variety Show?0:43 Commodore 64 Christmas Album (Demo) - 19825:24 Quick look at the BASIC code7:22 A Commodore 64 Christmas (Song)10:33 C64 Christmas behind-the-scenes12:45 Jingle Disk (Demo)18:54 Jolly Old St. Nicholas (1541 Upgrade version - Song)21:09 Jolly Old behind-the-scenes23:11 Ash & Dave: Snowball Sunday (Game)27:13 A Procedurally Generated Christmas (Song)29:53 A Procedurally Generated behind-the-scenes33:32 FREEZE64 (Game)36:15 Wrap-Up37:21 Credits & Silent Night
TI-99/4A Cassette Fun: TI BASIC Tutorials and Games 8-Bit Show And Tell 2021-12-18 | It's cassette time on the TI-99/4A! We look at a donation from viewer Kevin of a GE tape deck and cable, along with a tutorial cassette. We learn about OLD and some other TI BASIC oddities, create some kind of pixel guy, and revisit the so-called optimized BASIC program from a previous episode. Finally, I put out a call for information about MAXXAM:KARATE and then finally try a car battling game I've owned for years but have been unable to play. And somewhere along the way, tragedy strikes when the Function key is misused.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALinks:My Previous TI episode: youtu.be/isLZEswOmP8Pixel Pedant: "Let’s Talk About TI BASIC on the TI-99/4A": youtu.be/ls-PxqRQ35QA disk version of "Beginner's BASIC Tutor" appears to be part of this collection: archive.org/details/Texas_Instruments_TI-99_4a_TOSEC_2012_04_23MAXXAM in Analog Computing magazine, Issue 11, page 44: archive.org/details/analog-computing-magazine-11/page/n43/mode/2upMAXXAM Dataware Cartridge Simulator: atariage.com/forums/topic/292537-maxxam-dataware-cartridge-simulatorEnd credits music is "Steps Creaked (World 2)", recorded on a real NES, from the Super Splatform OST by P1XL Games: p1xlgames.bandcamp.comIndex0:00 Computer Program Data Recorder4:00 Hooking up the TI-99/4a6:35 Loading BASIC Tutor: Lesson One cassette9:47 LISTing10:52 RUNning Lesson One23:05 Loading and RUNning Lesson Five27:14 Pixel Time: Auto Character Definition29:35 Revisiting that Sketch program: Edits, Optimization35:43 A Terrible Mistake37:56 Help wanted: MAXXAM:KARATE39:28 Cars & Carcasses II: Run Down Monsters!46:27 A good run: finally getting the hang of it49:08 Thanks!
One-Line PET Emulator for Commodore 64 8-Bit Show And Tell 2021-12-02 | We take a look at a single line of BASIC from Jim Butterfield, published in The Transactor magazine in 1984, that re-configures the Commodore 64 to be able to run some Commodore PET software. We type it in, test it out with a few PET games, and figure out how it works.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTellOne-time donation: paypal.me/8BitShowAndTell2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAThe Transactor Volume 5 Issue 1: archive.org/details/transactor-magazines-v5-i01/page/n21/mode/2upMapping the Commodore 64 (source of most of the memory map details shown in the top right corner): archive.org/details/Compute_s_Mapping_the_Commodore_64Fixing Dungeon on the PET: youtu.be/VG0ODzV48fIGrowing Up '80s (Robin and Darren's podcast): patreon.com/GU80sEnd credits song is "History (Commodore 64)" by Bedford Level Experiment: bedfordlevelexperiment.bandcamp.com/track/history-commodore-64Index:0:00 Intro - The Transactor Volume 5 Issue 11:05 Typing it in (with some explanation)4:00 RUNing and $ weirdness6:10 Testing Dungeon9:48 Testing Blackjack11:56 Testing Everest15:05 Testing Space Invaders16:40 How does the "emulator" work?21:30 Improving - and a challenge24:10 Testing Yahtzee25:39 Conclusion & thanks!
Commodore 64 Game on Vinyl: We Are Stardust 8-Bit Show And Tell 2021-11-26 | LukHash's new record "We Are Stardust" contains some great Retrowave music, but also has a Commodore 64 game by Megastyle stored in the vinyl grooves. We look at how to load this game on a real Commodore 64, and give it a play.Links mentioned:"We Are Stardust" digital: lukhash.lnk.to/WeAreStardust"We Are Stardust" CD: newretrowave.bandcamp.com/album/we-are-stardust LukHash Youtube: youtube.com/lukhashdotcomLukHash's C64 album: lukhash.bandcamp.com/album/cyberchipMegastyle: megastyle.itch.io/we-are-stardustCover artist Pedro Lourenço: kenshike.artstation.com My "Data on Vinyl Records & Music CDs" Playlist:youtube.com/playlist?list=PLvW2ZMbxgP9xqddQRgmd3rmhW6giZz5OOTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAJoni Mitchell's first performance of Woodstock (Live in 1969): youtu.be/26LYjMww0GYCrosby, Stills, Nash & Young's cover of Woodstock (aka We Are Stardust): youtu.be/4lx86B6a3kcCarl Sagan "We're made of starstuff": youtu.be/wLigBYhdUDsIndex:0:00 About LukHash and "We Are Stardust"1:46 Today's items: ION turntable, MP32C64 adapter, PAL C64, the record3:34 Robin of the Future LOADs the game6:21 Megastyle Proudly Presents... We Are Stardust7:55 More gameplay, some trivia, QR Code/Hall of Fame9:58 Some production info from Programmer Jamie Fuller11:28 Does it run on NTSC? Yes, mostly14:32 Thanks!
Optimizing Line Count in TI BASIC: Type-in Fun with the TI-99/4A 8-Bit Show And Tell 2021-11-18 | Thanks to a generous donation of TI-99/4A programming books from viewer Greg, we type in and try to improve upon the TI version of my favourite etch-a-sketch style program that I've been fascinated with since 1983.Previous episodes mentioned:TI-99/4a 40th Birthday: youtu.be/usqJGl2s4x4Drawing Sketches for ZX-81: youtu.be/yxdxah0B3qoReally Tiny Text Adventure: youtu.be/_d2g5BXdyfUTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAEnd credit music is an excerpt of "The Second Coming" from the album "The Agony and the Ecstasy of Steve Jobs: A Soundtrack" by Bedford Level Experiment: bedfordlevelexperiment.bandcamp.com/album/the-agony-and-the-ecstasy-of-steve-jobs-a-soundtrackIndex:0:00 Mystery Solved: TI-99/4A Power Supply Recall1:53 Programming book donations from Greg2:32 COMPUTE!'s First Book of TI Games4:59 36 Texas Instruments TI-99/4A Programs for Home, School & Office8:41 101 Programming Tips & Tricks for the Texas Instruments TI-99/4A Home Computer12:11 Using & Programming the TI-99/4A: Including Ready-To-Run Programs15:57 Typing "Drawing Sketches": Lines 10-9020:44 Lines 100-20024:00 Lines 210-41027:32 RUNning Drawing Sketches29:25 GOTO Cleanup: Optimizing line count37:30 Reducing 41 lines of code to 7: Boolean Logic44:11 Conclusion and thanks
Commodore DAC-612 from 1969: Inside and Out 8-Bit Show And Tell 2021-11-12 | We take a look at a mostly-but-not-completely functional Commodore DAC-612 desktop calculator based upon the Casio 122 first produced in Japan in 1969; this particular unit was likely made in 1970. It uses Elfin display tubes and many components from a family of parts from NEC and Hitachi.Excellent page from Brent Hilpert about the Commodore DAC-612: http://madrona.ca/e/eec/calcs/CommodoreDAC612.htmlEarly Electronic Calculator Technology Reference: http://madrona.ca/e/eec/index.htmlMadrona Grove: http://madrona.caTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA1962 Commodore Report: archive.org/details/commodoreannualreport1962/page/n7/mode/2upElfin tube Radio Electronics article: http://www.decodesystems.com/re-elfin.htmlJapanese power connectors: http://www.zimmers.net/commie/docs/cbm-products.txtCasio 122 site: casio.ledudu.com/pockets.asp?type=1584&lg=engCanonical List of Commodore Products: http://www.zimmers.net/commie/docs/cbm-products.txtPhilco SC1772 shift registers: http://madrona.ca/e/eec/ics/shiftreg.htmlAdrian's Digital Basement 1970s Towel shown here: youtu.be/LNQ5Ao_pN1sIndex:0:00 Mini Commodore History1:00 A tour around the DAC-6122:29 About the AC power connector 163 (not quite)3:54 Casio 1224:33 DAC-612: What does it mean? Canonical List of Commodore Products5:20 Power up: Odd Zeroes6:30 Doing some calculations: Addition, Subtraction7:30 Multiplication and Division: No longer working9:43 Decimals & Rounding12:10 GT (Grand Total?) and double plus13:42 1970s Towel: Thanks Richard Pepper14:04 Undersides15:11 Inside: first look16:20 Display board: Elfin tubes17:17 Keyboard18:23 Power supply & removing the top logic board20:03 Examining the boards21:16 Integrated Circuits in a can & JMOS23:03 Philco SC1772: 48-bit shift registers24:25 A few other JMOS ICs - madrona.ca25:37 Thanks!
Book Club: Intro to 6510 Machine Language from Chapter 7 of Programming the C64 8-Bit Show And Tell 2021-11-03 | Continuing on with the "8-Bit Book Club" series, it's Part Two of Raeto Collin West's "Programming The Commodore 64: The Definitive Guide". This time we cover chapters 7 & 8. What an epic book! Thanks to Dane for donating this extra-rare second edition of the book. This video was originally the patron-exclusive video for February 2021; thanks to my patrons for their generous support.Link to zipped .pdf scan of this actual copy of the book I'm reading in this video!commodore.bombjack.org/books/commodore/books/Compute's_Programming_the_Commodore_64_The_Definitive_Guide_Revised_Edition.zipThanks to DLH of Bombjack.org for his excellent work archiving Commodore books! Support his web site: commodore.bombjack.org (link at top of page to donate)To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OALink to book on archive.org:archive.org/details/Compute_s_Programming_the_Commodore_64_The_Definitive_GuideEpisodes I mentioned:Part One: youtu.be/rU3zgeXBgg48-Bit Handouts: youtu.be/DqEIG6YKxOIJim Butterfield's book: youtu.be/OirYXXnCVloUsing BCD: youtu.be/vnhyGt6URYcKERNAL variations: youtu.be/If4mcprqBZwHex POKEs: youtu.be/I8GuyK-1DmQMusic Playback: youtu.be/EZAcD8aXVm4Green Delicious Apple-1 Emulator for Commodore 64 by Aleksi Eeben:https://csdb.dk/release/?id=118857Index:0:00 Intro2:58 My goal with Book Club videos3:50 Chapter 7: Intro to 6510 Machine Language8:22 About the 6510 Chip13:01 6510 Machine Language Techniques14:50 ML Monitors22:11 ML Assemblers26:37 Chapter 8: KERNAL Routines30:47 BASIC ROM Routines33:04 Using RAM under ROM34:28 Modifying BASIC & KERNAL Vectors, Wedges37:33 Thanks!
Steve Jackson: My Favourite Game Designer(s) 8-Bit Show And Tell 2021-10-27 | Ever since I was a young geek in the 1980s, Steve Jackson's name was on so many of my favourite things: Fighting Fantasy gamebooks, Car Wars, the Sorcery! series, Autoduel, GURPS, OGRE, Warlock of Firetop Mountain board game, and more, published by Games Workshop and Steve Jackson Games. How could one guy be so amazingly prolific??To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OASteve Jackson (US, Steve Jackson Games): en.wikipedia.org/wiki/Steve_Jackson_(American_game_designer)http://sj.sjgames.com/sjbio.htmlfightingfantasy.fandom.com/wiki/Steve_Jackson_(US)Steve Jackson (UK, Fighting Fantasy, Games Workshop): en.wikipedia.org/wiki/Steve_Jackson_(British_game_designer)fightingfantasy.fandom.com/wiki/Steve_Jackson_(UK)Index:0:00 Paper warning0:17 Steve Jackson made my favourite things3:12 There are two of them!4:47 Fighting Fantasy9:09 Car Wars - Tabletop Game - Steve Jackson Games12:02 Steve Jackson's Sorcery!12:59 BattleCars - Games Workshop - Spectrum Next14:14 Car Wars Gamebooks15:01 GURPS & AADA Road Atlas and Survival Guide16:03 The Hacker Crackdown17:00 Origin Systems: OGRE on Atari ST18:14 Autoduel on Commodore 6419:14 Dark Future, TSR20:20 Jim Burns Art23:12 Thanks!
Speed Cart 64: Slow Down Your Commodore 64, Sometimes 8-Bit Show And Tell 2021-10-18 | If you've ever found your Commodore 64 runs too fast, maybe you need a Speed Cart 64 which provides a way of slowing down the C64. Sometimes. Sometimes it actually speeds things up, and sometimes it glitches programs in bizarre ways. And sometimes it just crashes. To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OABremse 64 cart: https://retroport.de/rex-datentechnik-1/ Extra thanks to:Chuck Hutchins: youtube.com/c/ChuckHutchinsJim 64: youtube.com/channel/UCdSY1VtjJMPd7qib7ucaNHAJim Brain: store.go4retro.comRod @ TFW8b: thefuturewas8bit.comIndex:0:00 The Speed Cart 642:05 Slowing down 10 PRINT4:14 Testing some games: GORF, Jupiter Lander6:36 Jumpman Junior, Mountie Mick's Death Ride11:20 Bruce Lee II, Wizard of Wor13:53 Examining effect on the TI (jiffies) variable17:25 Bremse 64 (Brake/Break 64)18:08 I attempt to explain the circuit...24:17 Potential improvements, clarifications26:05 Thanks to my patrons
Commodore 64: Opening The Borders (Type-In From Zzap!64 Magazine) 8-Bit Show And Tell 2021-10-06 | Let's examine a BASIC type-in from the August 1987 issue of Zzap!64 magazine that allows the Commodore 64's top and bottom borders to be "opened" or "removed" or "killed" or whatever you'd like to call it. Thanks to my patrons that support these extra-nerdy monthly videos.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAZZap!64 Magazine, Issue 28, August 1987:archive.org/details/zzap64-magazine-028End credits music is an instrumental version of the unreleased "You're My Favourite PET" by Bedford Level Experiment: youtube.com/user/BedfordLvlExperimentIndex:0:00 Intro: Zzap!64 and more2:53 Typing In Listing5:11 Debugging6:14 The borders are open!9:30 Sprites in the border12:40 IRQ setup machine code16:30 The IRQ code - where the trick happens21:02 More explanation of how it works26:40 Thanks!
Programming in FORTH on Commodore 64 8-Bit Show And Tell 2021-09-29 | Today we explore 64 Forth for the Commodore 64 with the help of my friend Paul Pridham, aka Madgarden, who uses his own version of Forth to code his hit indie videogames such as Death Road To Canada. Prompted by David Youd, who donated the cartridge and books to me, we try a few Forth variations of the famous 10 PRINT program, starting with one-line versions while working towards a more Forth-like final version.Check out Death Road To Canada on Steam: store.steampowered.com/app/252610/Death_Road_to_CanadaFollow Paul on Twitter: twitter.com/madgardenWhy we keep saying "orthAgonal": youtu.be/oPtjcSsS2MIYou might want to check out DurexForth which is a modern C64 implementation of Forth: github.com/jkotlinski/durexforthHey Birt! made some videos about DurexForth: youtu.be/TXIDqptXmiMThanks to David Youd for finding these Forth references:John Romero's interview of Stuart Smith: appletimewarp.libsyn.com/episode-9-stuart-smith29:02 "I used Forth by the way for Adventure Construction Set..." -- Stuart SmithKay Savetz's interview of David Maynard: ataripodcast.libsyn.com/antic-interview-408-david-maynard-electronic-arts-worms30:08 "Electronic Arts is a lot of early productivity software. So probably the first products I did there were Cut & Paste an editor that ran on Atari, and Apple, and Commodore, written in Forth..."30:28 "Then I wrote a program called Financial Cookbook . . . and that was all written in Forth"48:22 "I was technical director on Starflight . . . written in Forth" -- David MaynardC64 "Worms" Forth source code: github.com/savetz/worms/blob/main/worms%20source%20code%20Commodore%2064.txtChipwits: en.m.wikipedia.org/wiki/ChipWits David Youd helped confirm that the C64 version is still (at least partially) in Forth. Start the game and look at $1460 and on, or look at file cw.gm.COMPUTE! SpeedScript: Original version was in forth, but they rewrote it in pure assembly for the various platforms: ataripodcast.libsyn.com/antic-interview-207-tom-halfhill-compute-magazine16:26 "So Charles was famous for his word processor that he did. . . that was SpeedScript . . he first showed me a prototype of that, believe it or not that was written in a programming language called Forth . . . later he ended up rewriting it in machine language for the Atari. Then we did homelogs[?] for Commodore 64 and VIC20 and Apple II..." -- Tom HalfhillUpdate 2022.11.16: David Youd has also found that Lords of Conquest (EA, 1986) was written in Forth.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAEnd credits music is "Bit Pair" by Bedford Level Experiment: youtu.be/Appmg64tZB0Index:0:00 Introductions & Going Forth2:54 Forth 10PRINT one-liner by David Youd10:04 Using SID as a random source14:54 Decompiling the 10PRINT word16:50 10 PRINT Orthogonal in Forth26:55 Replacing MOD with AND for speed29:19 Thanks, links, and more...
MASTEROM 64: Rediscovered 1987 Commodore 64 KERNAL Replacement 8-Bit Show And Tell 2021-09-25 | MASTEROM 64 is a Commodore 64 KERNAL ROM replacement created by Norland Software Products of Milton, Ontario, Canada in 1987. It replaces the cassette ROM routines with other features of more use to disk users. This software was nearly lost and forgotten until MindFlareRetro was able to meet the creator and archive both the ROM and documentation. MFR asked me to take a look at the software which I was very happy to do, especially once I learned of its Canadian roots and connection with Transactor magazine.Check out MindFlareRetro's video for the story of how MASTEROM was rediscovered and preserved, and for download links: youtu.be/Et7ZM9f1mecMy video about cassette use in North America: youtu.be/-nHrjqmt_wQEvery official C64 KERNAL variation: youtu.be/If4mcprqBZwTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAIndex:0:00 Why?1:54 What is MASTEROM 64?3:50 How did they fit this new functionality in?5:22 Running MASTEROM on EasyFlash 36:22 Demonstrating new functions13:45 Showing some of the ROM differences in SuperMon21:23 Check out MindFlareRetro's video, and thanks!
Commodore 64 Programming Joystick-Controlled Sprites in Assembly PART TWO 8-Bit Show And Tell 2021-09-16 | Finally, the follow-up video to the original "Commodore 64 Joystick-Controlled Sprites in Assembly and BASIC" video from September 2019! We explore a better approach to reading the joystick using the shift method. Also shown: how to display and move all 8 sprites using indexing, changing their colour and appearance, and also a more advanced topic of scaling the ROM character set up by a factor of 3 to turn the Commodore characters into big sprites.Original video / part one: youtu.be/mOMc6kLkUrgTo support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OACommodore 64 Programmer's Reference Guide (see page 108-114):archive.org/details/c64-programmer-ref Download today's code on a .d64 with Turbo Macro Pro and the source code:8bitshowandtell.com/prg/spritedemo.d64Mount the .d64 in your emulator, or on your real C64, then:LOAD"TMP *",8,1 (note that there's a space after TMP)SYS 32768Back Arrow L, filename: sprites21Back Arrow 3, S to assemble and startJoystick in port #2 to move sprite, fire button to change colourKeys 1-8 to choose sprite 1 through 8.Keys A-Z to change current sprite to selected letter.Restore to exit back to assemblerIndex:0:09 Making Lamers Again2:08 Trying the example (again)3:35 Code Walkthrough: Initialization and Main Loop7:30 Initsprites11:04 Readjoystick15:30 Readkeyboard18:31 Positionsprites22:45 Waitraster23:50 Makesprites (initialization)29:35 Makesprites (inner loops)36:57 Finishing up39:30 Thanks!
Re-typing My 1983 Game Programming Inspiration 8-Bit Show And Tell 2021-09-07 | In 1983 I got my first computer: a Timex/Sinclair 1000, which is the North American version of the Sinclair ZX-81. There were no game cartridges or disks for it, and I didn't even have the ability to use cassette tapes with it. There was only one way I was going to have any games on it: type them in myself in BASIC. I got a book called "101 Timex 1000 / Sinclair ZX-81 Programming Tips & Tricks" and even though it wasn't a game program itself, it contained many of the fundamental concepts I needed to continue game design.To support 8-Bit Show And Tell:Become a patron: patreon.com/8BitShowAndTell One-time donation: paypal.me/8BitShowAndTell 2nd channel: youtube.com/channel/UCAgWzEh5c8391eJnELDy9OAEnd credits music is "Programmed For Hours" from the album "Place Without A Computer" by Bedford Level Experiment:bedfordlevelexperiment.bandcamp.com/album/place-without-a-computeryoutube.com/user/BedfordLvlExperimentIndex:0:00 My first computer & TV2:01 Typing in the "Drawing Sketches"8:20 Running the program10:13 Why this program mattered to me11:35 Modifying the program14:45 Debugging & RUNning again17:13 Nostalgic or terrible?18:10 Thanks!
