#68k — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #68k, aggregated by home.social.
-
This video about the Motorola 68060 (then Coldfire) is very interesting. I did not know that most of the design was done by a startup that Motorola then acquired.
A gentle introduction to chip design, with a reminder that CISC vs RISC did not make much sense even back then, despite all the flame wars.
As a PC user I did not learn about the 060 until much later. It appears to have been quite a competent chip 🙂
-
This video about the Motorola 68060 (then Coldfire) is very interesting. I did not know that most of the design was done by a startup that Motorola then acquired.
A gentle introduction to chip design, with a reminder that CISC vs RISC did not make much sense even back then, despite all the flame wars.
As a PC user I did not learn about the 060 until much later. It appears to have been quite a competent chip 🙂
-
This video about the Motorola 68060 (then Coldfire) is very interesting. I did not know that most of the design was done by a startup that Motorola then acquired.
A gentle introduction to chip design, with a reminder that CISC vs RISC did not make much sense even back then, despite all the flame wars.
As a PC user I did not learn about the 060 until much later. It appears to have been quite a competent chip 🙂
-
This video about the Motorola 68060 (then Coldfire) is very interesting. I did not know that most of the design was done by a startup that Motorola then acquired.
A gentle introduction to chip design, with a reminder that CISC vs RISC did not make much sense even back then, despite all the flame wars.
As a PC user I did not learn about the 060 until much later. It appears to have been quite a competent chip 🙂
-
This video about the Motorola 68060 (then Coldfire) is very interesting. I did not know that most of the design was done by a startup that Motorola then acquired.
A gentle introduction to chip design, with a reminder that CISC vs RISC did not make much sense even back then, despite all the flame wars.
As a PC user I did not learn about the 060 until much later. It appears to have been quite a competent chip 🙂
-
Is there an equivalent of DOS for 68K? In thinking about this a bit—considering 68K workstations like Mac, Atari ST, Tektronix 4404—i came to realise that i was probably a bit harsh on DOS (i grew up very much in the DOS period, but never had a DOS machine). Like, i love command line, and DOS is a command line available on a very broad range of machines, all x86 based (right?). Was there any sort of semi-portable command line system that was available on any sort of non-x86 architecture? (i'm thinking small, not like UNIX which could run on 68K, or MVS/TSO which ran on IBM mainframes).
[edit: contenders are CP/M-68K (which isn't vaporware), OS-9, and maybe Human68K]
-
16-bit/early-32-bit was my favorite era. (Basically, the #68k era ;)
Computers were just becoming capable, but not too big for their britches.
-
Free to a good home: A nine-page booklet HyperCard Version 1.2 Update, a single-page addendum to the Macintosh System Software User's Guide, Version 6.0, and the packing list from a Mac Plus, dated 1988. :apple_inc: 📮
#FreeToAGoodHome #RetroComputing #VintageComputers #Macintosh #68K
-
｢ NCR Corporation, in a move to capture an increasing share of the OEM computer market, has announced a new small computer based on the Motorola 68000 microprocessor. The 16-bit multiuser and multitasking computer is called the Tower 1632. It runs an operating system derived from UNIX III and provides data storage with fixed Winchester disk drives ｣
https://computeradsfromthepast.substack.com/p/ncr-tower-1632
-
#Macstodon now runs in the latest bleeding-edge build of the Snow emulator! And if you use Snow's built-in HTTPS stripping, then you don't have to configure WebOne or another proxy, just install Macstodon and start using it 😎
Thanks @twvd for the FPU fixes and all the other hard work you put into Snow! This is the kick-in-the-pants I need to get the next version of Macstodon out the door 🙂
#RetroComputing #RetroProgramming #VintageMac #68K #PowerPC #Apple #Mac #MacOS #ClassicMac
-
#genuary2026 #genuary #genuary11 - Quine with a scanline #p5js #processing #z80 #68k
-
#genuary2026 #genuary #genuary11 - Quine with a scanline #p5js #processing #z80 #68k
-
A2560Me Aluminum Case: Foenix Labs Shows Premium and Budget Enclosures
#FoenixLabs #A2560Me #RetroComputing #68k #MiniITX #RetroHardware #ComputerCase #ArcA310 #OpenSourceDrivers #PCIe
https://theoasisbbs.com/a2560me-aluminum-case-foenix-labs-shows-premium-and-budget-enclosures/?fsp_sid=1177 -
A2560Me Aluminum Case: Foenix Labs Shows Premium and Budget Enclosures
#FoenixLabs #A2560Me #RetroComputing #68k #MiniITX #RetroHardware #ComputerCase #ArcA310 #OpenSourceDrivers #PCIe
https://theoasisbbs.com/a2560me-aluminum-case-foenix-labs-shows-premium-and-budget-enclosures/?fsp_sid=1177 -
A2560Me Aluminum Case: Foenix Labs Shows Premium and Budget Enclosures
#FoenixLabs #A2560Me #RetroComputing #68k #MiniITX #RetroHardware #ComputerCase #ArcA310 #OpenSourceDrivers #PCIe
https://theoasisbbs.com/a2560me-aluminum-case-foenix-labs-shows-premium-and-budget-enclosures/?fsp_sid=1177 -
A2560Me Aluminum Case: Foenix Labs Shows Premium and Budget Enclosures
#FoenixLabs #A2560Me #RetroComputing #68k #MiniITX #RetroHardware #ComputerCase #ArcA310 #OpenSourceDrivers #PCIe
https://theoasisbbs.com/a2560me-aluminum-case-foenix-labs-shows-premium-and-budget-enclosures/?fsp_sid=1177 -
A2560Me Aluminum Case: Foenix Labs Shows Premium and Budget Enclosures
#FoenixLabs #A2560Me #RetroComputing #68k #MiniITX #RetroHardware #ComputerCase #ArcA310 #OpenSourceDrivers #PCIe
https://theoasisbbs.com/a2560me-aluminum-case-foenix-labs-shows-premium-and-budget-enclosures/?fsp_sid=1177 -
A2000 Accelerator Mystery: Tracking an Amiga 2000 Boot Fault
#Amiga2000 #CommodoreAmiga #RetroComputing #HardwareRepair #LogicAnalyzer #PiPico #AmigaRepair #Electronics #68k #Workbench
https://theoasisbbs.com/a2000-accelerator-mystery-tracking-an-amiga-2000-boot-fault/?fsp_sid=906 -
A2560Me Board: Foenix Labs’ new 68k Mini-ITX build
#A2560Me #FoenixLabs #Motorola68060 #68k #RetroComputing #MiniITX #FPGA #RetroHardware #HomebrewComputing #VICKYTheFourth
https://theoasisbbs.com/a2560me-board-foenix-labs-new-68k-mini-itx-build/?feed_id=7246&_unique_id=694aaca5513d6 -
A2560Me Board: Foenix Labs’ new 68k Mini-ITX build
#A2560Me #FoenixLabs #Motorola68060 #68k #RetroComputing #MiniITX #FPGA #RetroHardware #HomebrewComputing #VICKYTheFourth
https://theoasisbbs.com/a2560me-board-foenix-labs-new-68k-mini-itx-build/?feed_id=7246&_unique_id=694aaca5513d6 -
A2560Me Board: Foenix Labs’ new 68k Mini-ITX build
#A2560Me #FoenixLabs #Motorola68060 #68k #RetroComputing #MiniITX #FPGA #RetroHardware #HomebrewComputing #VICKYTheFourth
https://theoasisbbs.com/a2560me-board-foenix-labs-new-68k-mini-itx-build/?feed_id=7246&_unique_id=694aaca5513d6 -
A2560Me Board: Foenix Labs’ new 68k Mini-ITX build
#A2560Me #FoenixLabs #Motorola68060 #68k #RetroComputing #MiniITX #FPGA #RetroHardware #HomebrewComputing #VICKYTheFourth
https://theoasisbbs.com/a2560me-board-foenix-labs-new-68k-mini-itx-build/?feed_id=7246&_unique_id=694aaca5513d6 -
A2560Me Board: Foenix Labs’ new 68k Mini-ITX build
#A2560Me #FoenixLabs #Motorola68060 #68k #RetroComputing #MiniITX #FPGA #RetroHardware #HomebrewComputing #VICKYTheFourth
https://theoasisbbs.com/a2560me-board-foenix-labs-new-68k-mini-itx-build/?feed_id=7246&_unique_id=694aaca5513d6 -
Getting System 7.5 natively booting on a G4 Mac is impressive enough…
...but what truly blows my mind is that on the same hardware, the author managed to get System 6.0.8 as far as a Happy Mac, and Systems 7.0/7.1 to a "not supported on this computer" dialog.
The fact that the ROM manages to get that far at all, instead of a black screen or sad mac is bonkers, considering that the processor architecture (and the rest of the hardware) is completely different from anything that would be understood by that era of OS. It's relying on the 68k emulator built-in to the ROM.
Driver support notwithstanding, I wonder how low could you go if you took the resources from the CHRP system enabler and brought them over into the System file directly? Since 6.x and early 7.x didn't support enablers.
#RetroComputing #VintageMac #68K #PowerPC #Apple #Mac #MacOS #ClassicMac https://mstdn.social/@osnews/115637701377779352
-
Texas Instruments has discontinued the venerable Ti-89 (and titanium) graphing calculator this year after 27 years. Is this the last consumer device to ship with a Motorola 68k processor? #Ti89 #68k #Calculator
-
🎉 Welcome to the riveting world of #SimpleText patching! 🤯 Navigate a labyrinth of forums and resources just to relive the #90s joy of #editing #text files on a #68K #Mac. Because who needs modern software when you can have endless #assembly #code fun? 🙄💾
https://tinkerdifferent.com/threads/patching-68k-software-simpletext.4793/ #Patching #Nostalgia #HackerNews #ngated -
Testing ZigZagJoe's IIsi Booster 2.0 accelerator- Here are some screenshots of the gains. #Macstodon is loading up toots like a boss now 😃 #Mac #VintageMac #68k
-
GlobalTA/UX’ing tonight!
It's been quite a while since I’ve done something silly with an old Mac so I installed A/UX on my IIfx. It's something I've wanted to do for a while (and tried a few times in the past) but never managed to get it to work until now - turns out A/UX is incompatible with the BMOW ROM-inator - after reinstalling my stock IIfx ROM it works like a charm, even supporting my Interware video card and Asante ethernet card.
Software compatibility is a bit spotty when it comes to network apps - iCab and TurboGopher didn't work, but MacLynx and the Wikipedia app do. And of course #GlobalTalk works like a charm!
Also it's crazy that I can telnet into this thing from my daily driver MacBook Pro 🤣
#RetroComputing #VintageMac #68k #Apple #Mac #MacOS #ClassicMac
-
Avances de Emu68 con soporte PowerPC
Michal Schulz ha publicado una nueva actualización de desarrollo en la que aborda una de las preguntas más frecuentes entre los usuarios de Emu68: si sería posible ejecutar código ARM directamente a través del sistema. Según explica, siempre respondió que no, principalmente para evitar dividir aún más a la comunidad Amiga y generar ejecutables exclusivos de Emu68.
Sin embargo, reconoce que existen ya placas con CPU ARM y que, si en algún momento se abriese esa posibilidad, lo ideal sería hacerlo de manera abierta. Schulz menciona incluso variantes potenciales como AArch32, AArch64, el modo Thumb2 y las configuraciones little o big endian, pero finalmente concluye que el panorama ARM no es tan estable como podría parecer.
En cambio, ha decidido avanzar en otra dirección: añadir soporte PowerPC a Emu68. Aclara que el nombre se mantiene —no se abandona el M68k, sino que simplemente se añade PPC—. La idea, comenta, surgió hace años y se ha ido consolidando con el tiempo, ya que ambas arquitecturas son RISC y comparten ciertos principios.
Para ello, Schulz tomó los componentes principales de Emu68 —el traductor, las cachés y el bucle principal JIT— y comenzó a experimentar. En poco tiempo logró ejecutar cerca del 90 % de las instrucciones enteras del PowerPC, condensando todo el traductor en unas 7.000 líneas de código C++.
Durante las pruebas iniciales obtuvo resultados notables: alrededor de 3.600 MIPS, con un rendimiento medio de 1,8 instrucciones PowerPC por ciclo ARM, escribiendo en memoria cacheada con operaciones de 16 bits.
Schulz explica que estos valores se deben a la eficiencia del compilador GCC al generar código PowerPC, optimizado para aprovechar los registros disponibles en una arquitectura load/store. Dado que Emu68 utiliza un JIT sencillo, evita optimizaciones pesadas, pero en este caso no son necesarias porque el propio código PowerPC ya está bien organizado.
El nuevo traductor PowerPC funciona de forma completamente independiente del núcleo M68k, ejecutándose en un núcleo de CPU separado. Esto garantiza que el rendimiento del 68k no se vea afectado. Si el usuario no necesita PowerPC, simplemente puede ignorarlo: el núcleo adicional permanece inactivo.
Schulz justifica esta decisión explicando que ejecutar ambas arquitecturas en el mismo núcleo provocaría pérdidas de rendimiento y complicaciones de contexto. Detalla además cómo mapea los registros: los 16 enteros y 14 de coma flotante más usados se mantienen en registros AArch64, mientras que los demás se cargan dinámicamente bajo una política LRU. Los registros enteros temporales se almacenan en espacios SIMD, lo que permite cruces rápidos con una penalización de solo 2-3 ciclos.
También señala que el cambio de contexto, un problema histórico en las aceleradoras PPC reales debido a la falta de coherencia entre cachés, se simplifica enormemente bajo Emu68, ya que los núcleos AArch64 mantienen coherencia automática. En la práctica, basta con una barrera de memoria para sincronizar los datos.
Actualmente, la parte entera del PowerPC está prácticamente completa. El emulador soporta interrupciones entre ambos lados (M68k y PPC) y dispone de un ROM propio que se inicia junto con el sistema, esperando a su compañera powerpc.library, aún en desarrollo. Esta librería busca compatibilidad con WarpOS tanto en API como en ABI, en colaboración con Hedeon, autor de hardware PowerPC PCI como las tarjetas Sonnet Crescendo 7200.
El ROM incluye un programador específico para tareas PPC, permitiendo que se ejecuten en paralelo con los procesos M68k. Aunque la emulación de coma flotante está en una fase temprana, ya se han realizado pruebas con una versión adaptada del generador de fractales Buddhabrot, que ofrece tiempos de ejecución significativamente menores que en M68k, así como una mejora aproximada de 2× en pruebas Dhrystone 2.1.
Schulz concluye mencionando que este texto debía formar parte de la tercera entrega de “What’s new in 1.1”, pero el tema acabó creciendo más de lo previsto. Añade que se encuentra agotado tras varios resfriados y que necesita un descanso antes de seguir avanzando. Anticipa que en los próximos días ofrecerá más información sobre Emu68 1.1, el soporte PPC, el encuentro Amiga40 y un cambio técnico importante: la migración progresiva del proyecto hacia C++.
#68k #AArch64 #Amiga40 #amigaos #Buddhabrot #CCommodoreAmiga #Dhrystone #emu68 #Hedeon #jit #M68k #MichalSchulz #pistorm #powerpc #ppc #RISC #warpos
-
These are now the definitive Amiga 40 streaming details from Mönchengladbach for Saturday and Sunday. There may still be minor changes to the stream depending on the previous topic.
Watch at the following URLs:
http://YouTube.com/BBSindex
http://Twitch.TV/BBSindexMay now be officially published everywhere.
#commodore #amiga #amiga40 #event #amigaos #hyperion #icomp #ApolloVampire #augs #68k #retro #vintage #computer #vcf #vcfzh #VCFSO
-
These are now the definitive Amiga 40 streaming details from Mönchengladbach for Saturday and Sunday. There may still be minor changes to the stream depending on the previous topic.
Watch at the following URLs:
http://YouTube.com/BBSindex
http://Twitch.TV/BBSindexMay now be officially published everywhere.
#commodore #amiga #amiga40 #event #amigaos #hyperion #icomp #ApolloVampire #augs #68k #retro #vintage #computer #vcf #vcfzh #VCFSO
-
These are now the definitive Amiga 40 streaming details from Mönchengladbach for Saturday and Sunday. There may still be minor changes to the stream depending on the previous topic.
Watch at the following URLs:
http://YouTube.com/BBSindex
http://Twitch.TV/BBSindexMay now be officially published everywhere.
#commodore #amiga #amiga40 #event #amigaos #hyperion #icomp #ApolloVampire #augs #68k #retro #vintage #computer #vcf #vcfzh #VCFSO
-
These are now the definitive Amiga 40 streaming details from Mönchengladbach for Saturday and Sunday. There may still be minor changes to the stream depending on the previous topic.
Watch at the following URLs:
http://YouTube.com/BBSindex
http://Twitch.TV/BBSindexMay now be officially published everywhere.
#commodore #amiga #amiga40 #event #amigaos #hyperion #icomp #ApolloVampire #augs #68k #retro #vintage #computer #vcf #vcfzh #VCFSO
-
These are now the definitive Amiga 40 streaming details from Mönchengladbach for Saturday and Sunday. There may still be minor changes to the stream depending on the previous topic.
Watch at the following URLs:
http://YouTube.com/BBSindex
http://Twitch.TV/BBSindexMay now be officially published everywhere.
#commodore #amiga #amiga40 #event #amigaos #hyperion #icomp #ApolloVampire #augs #68k #retro #vintage #computer #vcf #vcfzh #VCFSO
-
There is a new #CPM for #68K #Emulator
(I compiled the Source on a RPi3 and also on Windows (via MSYS2_64))
https://github.com/kobolt/cpm68emu -
Updated the #Macstodon roadmap today.
It's been a long time since I've touched it, but things slowed down a little bit at my day job this week and I'm getting the itch to do some retro programming again.
I need to tackle the longstanding Mastodon 4.3+ auth issue and I think I'm just going to build a wizard-type interface with screenshots that show you what you need to click (on a modern machine) in order to create an auth token manually.
Also it would be nice to support the new quote posts feature. And polls. And maybe even attachments.
I gave up on the REALBasic/FutureBasic rewrite - it was too difficult to do that and still maintain System 7 & 68K support (and also because someone else is working on a Mac Mastodon client in REALBasic for later OS versions).
I do still want to rewrite it in Micropython but that’ll be a LONG way away and is dependent on Micropython getting all of MacPython's features.
Anyway, hopefully I'll have more to share in a few days/weeks.
#RetroComputing #RetroProgramming #VintageMac #68K #PowerPC #Apple #Mac #MacOS #ClassicMac https://oldbytes.space/@smallsco/109436160115100325
-
Wow, second time in seven days. Another package that's been lost in the post for over two months had turned up unannounced in my mailbox. This time its a #68K assembly language manual 👾
-
And now I wonder how hard it could be to patch a 68K silicon graphics IRIS 3000 to run classic mac os. I doubt I'll have time in my lifetime to look into that, but still making QuickDraw work with a bitplane graphic adapter would be interesting…
-
@llamasoft_ox I grokked #6809 first and then a fair bit of #68k when I moved to the #atarist and started writing demos. My summer job at Flare technology was a wake up call as I moved from clear opcodes and register naming to x86's implicit targets and much more limited register space. Nowadays I probably spend most of my assembly time between x86 and #arm and at least 64 bit added more registers to use.
-
Moving an animated Boing Ball over #PHASEOUT logo…
#amiga #68k #motorola #maxon #dpaint #commodoreamiga #c64 #c64games #c64mini #c64g #c64maxi #commodore64 #commodoreamiga #commodoregames #c128 #commodore128 #c64c #gamedev #8bit #retrogaming
-
Moving an animated Boing Ball over #PHASEOUT logo…
#amiga #68k #motorola #maxon #dpaint #commodoreamiga #c64 #c64games #c64mini #c64g #c64maxi #commodore64 #commodoreamiga #commodoregames #c128 #commodore128 #c64c #gamedev #8bit #retrogaming
-
Moving an animated Boing Ball over #PHASEOUT logo…
#amiga #68k #motorola #maxon #dpaint #commodoreamiga #c64 #c64games #c64mini #c64g #c64maxi #commodore64 #commodoreamiga #commodoregames #c128 #commodore128 #c64c #gamedev #8bit #retrogaming
-
Naturally. That's quite amazing
#RetroComputing #Amiga #68k #Motorolla #Agnus #FatAgnus #FatterFatterAgnus #Denise
-
Naturally. That's quite amazing
#RetroComputing #Amiga #68k #Motorolla #Agnus #FatAgnus #FatterFatterAgnus #Denise
