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#trs80 — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #trs80, aggregated by home.social.

  1. Came across a Radio Shack 26-1201 TRS-80 video display at an antique mall for $20 yesterday - allegedly it works, but I do not have a TRS-80 to try it out with. I have read you can connect a TRS-80 to a composite display by making a simple DIN-5 to composite adapter and only hooking up pins 4 & 5.

    Would that work the other way around? My understanding is that at least one of the 5 pins is 5v, so I assume the monitor needs that for some reason.

    #retrocomputing #tandy #trs80 #trs_80

  2. Loaded up one of the first 3D maze games - Dungeons of Daggorath on the TRS-80 tonight. Wire frame graphics and cryptic text commands were all the rage in 1983. #trs80 #tandy #retrocomputing #retrogaming

  3. New blog post! This TRS-80 Model 1 was found in the bottom of a trash bin, smashed to bits by heavy printers and cash registers above it. Will it ever run again?

    #retrocomputing #tandy #trs80 #trs80model1

    leadedsolder.com/2026/03/03/tr

  4. Prototype of #TRS80 CoCo #FujiNet which uses the cartridge bus –and not the CoCo RS232 serial port– booting up the FujiNet CONFIG program. Shows the splash and goes into the menu! The prototype board uses a PicoROM wired direct to the bus, all IO is sent out over the USB port. This is the same technique currently being used by the MSX FujiNet prototype too.

    #RetroComputing #VintageComputing #TRS80CoCo

  5. Spent a bit this morning creating a new RGB to VGA cable for my TRS80 Color Computer 3. Decided to go with a VGA breakout box as my soldering isn’t the best. #trs80 #retrocomputing #tandy

  6. As a surprise Christmas gift to #retrocomputing, I've pushed out a new version of my #Vezza #Infocom #zmachine #interpreter. This time it's a #CP/M build, specifically for the #TRS80 models 2/12/16... on glorious 8-inch floppies. My requestor and tester Ziggystar12 was kind enough to take a photo of Bureaucracy running on a machine with the 8-inch drives; a game that could never be run on that machine before even though it was contemporary! #retrogaming #retroBattleStations

  7. unreal #BYTE #magazine haul from #MALOFTA #Vintage #AnnArbor!! (this is only a fraction; I gave up and bought the lot after failing to be able to choose just three or four...!) 🤘💾🤘

    #retrocomputing #Forth #LISP #TRS80

  8. I am beyond excited to announce our participation in the first edition of the renowned #VCF in #Montreal in January 2026! We will be there with two tables displaying our collection of #Tandy / #RadioShack #TRS80 #ColorComputer, as well as two tables of retro equipment and stuff for sale. I will give a presentation on the history of this very special computer. See you there !

    vcfed.org/vcf-montreal/

    #vcfmontreal #retrocomputing #quebec #canada #montreal #lgdl #cocobyte

  9. Uploaded a two-player Pong clone in a TRS-80 emulator. Plays with the A,Z and O,L keys... not very well, but it's a 50 line BASIC program so you get what you get.

    #gameDev #devLog #microComputer #TRS80 #retroComputer

    basic-code.bearblog.dev/trs-80

  10. 🖥️TRS-80 Model 4 : 1983, 64K de RAM, bi-disquettes et un écran monochrome

    Un monstre de productivité à l’époque, parfait pour CP/M :
    1983 : Wow, 64K de RAM !
    2025 : Mon grille-pain en a plus

    #TRS80 #RetroTech #retrocomputing #computer #heritage #toulouse
    #geek #oldcomputer

  11. IS BASIC from the #Enterprise128 is the foremost advanced #BASIC dialects for #8Bit #HomeComputers. But it is very(!) slow. The "Creative Computing Benchmark" took nearly 5 minutes to run (comparable to the #SinclairZXSpectrum and the #TRS80 Model 100) but produced excellent results: "accuracy" is quite good (comparable with #BBCMicro) and "random" is the best of all computers measured in the contest from 1984:

  12. After much testing and code comparison, the new Feb 2025 Release of #Vezza - my #z80 high speed #zmachine is ready! Took way longer than expected to synchronize across all of the code bases, particularly making sure that all optimizations made it across all platforms - TRS-80 model 1, TRS-80 model 3, TRS-80 model 4, the CP/M versions (~18 platforms), the embedded versions (Spectrum tape, TEC-1G), and slowly pushing into the Agon Light version (which has even more updates still in progress). Lots of individual tweaks, and some major rethinks and rewrites have come together to accelerate game play.

    The hardest part of rewriting in this update involved rewriting the dictionary search code. I ended up going back to the original jzip interpreter, written in C for Unix waaay back when. Jzip provided much of the logic that went into ZXZVM, which provided the base for #M4ZVM #M3ZVM and #Vezza. Going back to Jzip made sense as Jzip has an even longer history; and is highly tested and stable and still maintained. This research gave me the confidence that the streamlining and changes I was making to such a fundamental part of the game would work, making all inputted dictionary searching more efficient.

    To work around how CP/M stores executable files I spent a lot of time re-organising the memory map to make the executable smaller. This involved rearranging where the initialization code was stored inside the increasingly complex layout. Support across multiple versions means I needed to break up variable sized code and strings to sit inside variable sized gaps, while still compiling all the CP/M versions from the same interconnected set of source files. It needed quite a few manual checks to ensure that it all worked.

    What this all means is that your favourite #infocom #punyinform and other text adventures will all play on your favourite z80 #retrocomputing platforms even faster than before!

    More details in the devlog and downloads can be found at:
    #TRS80 versions sijnstra.itch.io/m4zvm
    #CPM #CPM80 versions sijnstra.itch.io/vezza

  13. Book Stacks Unlimited: история первого в мире книжного интернет-магазина

    Когда речь заходит о первом в истории интернет-магазине, специализировавшемся на продаже книг, на ум сразу же приходит детище Джеффа Безоса. Однако Amazon нельзя назвать пионером электронной торговли: еще за три года до него на рынок e-commerce вышел книжный интернет-магазин Book Stacks Unlimited. Собственно, этот электронный магазин начал работать еще до появления WWW. Все указывало на то, что инновационный для своего времени стартап должен стать флагманом индустрии… но этого не случилось. Как говорится, истории провалов порой могут научить большему, чем тысяча историй успехов. Так что же стало причиной неудачи Book Stacks Unlimited?

    habr.com/ru/companies/serversp

    #BBS #Parallax #Amazon #интернетмагазин #TRS80 #Tandy #Book_Stacks_Unlimited #ecommerce #электронная_торговля

  14. I've improved the #AgonLight implementation of Daniel Martin's #TRS-OS to make a more authentic #trs80 experience. The main thing I wanted to improve was the display capabilities. Steps taken (with thanks) to get the authentic output:
    1. Obtain + fix the correct font
    2. Load the font into #Agon
    3. Modify the VDP to allow buffered fonts in Terminal mode
    4. Modify the bootstrap and terminal host software to support the new code and use all 8 bits.
    5. Check out before and after
    #retrocomputing

  15. My former friend Nils (left), me (right), and my "Video Genie II" (middle) in 1987 ...#C64'ed for the upcoming issue of #DigitalTalk64 where I contributed an essay on "home computer user photos from the 1980s".

    #PixelArt #ComputerArchaeology #Commodore64 #TRS80

  16. Hello all, I'm from the #FujiNet project, #ESP32 based, which aims to put a WiFi network adapter on every #retrocomputing and #retrogaming platform.

    With this device, we can not only stream software to our favorite vintage computing devices, but we can also engage in cross platform gaming and other software.

    We are trying to maximize our reach by working through a generic 8-bit parallel bus protocol that could be used on anything with a card edge; to use an #RP2040 as a bus front-end. This way, we could reach #TRS80 #IBMPC #NES #SMS #Intellivision #Atari2600 #MSX #S100 #PC88 #PC98 #Astrocade and so much more.

    Would you like to help hack on this? Come join us: discord.gg/2Ce9guX

    Main site: fujinet.online/

  17. Hello all, I'm from the #FujiNet project, #ESP32 based, which aims to put a WiFi network adapter on every #retrocomputing and #retrogaming platform.

    With this device, we can not only stream software to our favorite vintage computing devices, but we can also engage in cross platform gaming and other software.

    We are trying to maximize our reach by working through a generic 8-bit parallel bus protocol that could be used on anything with a card edge; to use an #RP2040 as a bus front-end. This way, we could reach #TRS80 #IBMPC #NES #SMS #Intellivision #Atari2600 #MSX #S100 #PC88 #PC98 #Astrocade and so much more.

    Would you like to help hack on this? Come join us: discord.gg/2Ce9guX

    Main site: fujinet.online/

  18. Hello all, I'm from the #FujiNet project, #ESP32 based, which aims to put a WiFi network adapter on every #retrocomputing and #retrogaming platform.

    With this device, we can not only stream software to our favorite vintage computing devices, but we can also engage in cross platform gaming and other software.

    We are trying to maximize our reach by working through a generic 8-bit parallel bus protocol that could be used on anything with a card edge; to use an #RP2040 as a bus front-end. This way, we could reach #TRS80 #IBMPC #NES #SMS #Intellivision #Atari2600 #MSX #S100 #PC88 #PC98 #Astrocade and so much more.

    Would you like to help hack on this? Come join us: discord.gg/2Ce9guX

    Main site: fujinet.online/

  19. Home Computer Graphic Character Sets Compared
    8-bit microcomputer graphics were, compared to the graphics cards and chips we mostly use today, pretty limited. While machines like the Commodore 64 and Atari 800 allow
    setsideb.com/home-computer-gra
    #retro #appleii #ascii #atari800 #atarist #atascii #bob #characterset #codepage437 #commodore16 #commodore64 #dos #ibmpc #microcomputer #pet #petscii #pixelart #plus4 #retro #subgenius #terminal #trs80 #vic20

  20. I've released a new version of my #infocom #z-machine #textadventure interpreter #Vezza for #CP/M and #M4ZVM for the #trs80 Model 1/3/4. There's some speed improvements, along with a reduced footprint (smaller file, more space for cache), and a bugfix for a rare edge case in error handling discovered through the release of Ghosts by @8bitgames
    Disk images at sijnstra.itch.io/m4zvm and sijnstra.itch.io/vezza (with links to more platforms etc) #retrocomputing #cpc #msx #kaypro #osborne

  21. Because my bud Ben is porting it to every BASIC in sight, I spent half the night messing with ROG, my trs80 model 100 roguelike.

    Last looked at in 2016.... and it's in BASIC.... made by a Past Me who was cranky about the programming rules being preached at him by CS profs.

    "Don't write big projects in BASIC" turns out to be a pretty good rule, actually. 🤗


    #TRS80 #M100 #ModelT #Rog #RogueLike #Model100

  22. 🙋🏼‍♂️ CoCo Question: Is there ANY reason to keep a CoCo2, since I've gotten a CoCo3 with everything it needs? I really don't see a reason for keeping both. Thoughts?

    #CoCo2 #CoCo3 #TRS80CoCo #TRS80ColorComputer #Tandy #RadioShack #TRS80 #VintageComputing #RetroComputers #RetroGaming #WallOfRetro #NerdsOfVintage #HappyNerding #TheVintNerd

  23. Some interesting things at the MIT swap meet today. A working Kay Pro, TRS-80 with acoustic coupler and Commodore portable and a Digicomp mechanical computer. #retrocomputing #trs80 #commodore #kaypro #hamfest