Aujourd’hui :
💻 IA
☁️ cloud
⚡ GPU
En 1982 :
📼 cassette
⌛ patience
🧠 imagination
Le Sharp MZ-80A en faisait beaucoup avec très peu.
Un des plus beau de la série MZ non ?
#RetroComputing #TechHistory #Z80 #Silicium #Heritage #Toulouse
#z80
🌗 GitHub - nevesnunes/z80-sans：能將 Z80 指令反組譯的 OpenType 字體
➤ 當字體成為編譯器：一場關於 OpenType 的極致技術實驗
✤ https://github.com/nevesnunes/z80-sans
這是一款名為「Z80 Sans」的實驗性字體，它顛覆了傳統字體僅用於顯示文字的定義，透過巧妙運用 OpenType 的字形替換（GSUB）與字形定位（GPOS）表，實現了即時反組譯 Z80 處理器指令的功能。開發者透過程式化方式，將十六進位代碼直接轉換為可讀的組合語言助記符。雖然該技術面臨諸如位元組順序（Little-endian）、符號偏移量處理及海量指令組合等挑戰，但開發者最終透過遞迴下降解析器結合暴力破解法，直接操作底層 .ttx 文件，成功創造出這款極具創意與技術難度的「可執行」字體。
+ 這實在太瘋狂了！用 GSUB/GPOS 表做邏輯運算，這大概是 OpenType 標準發布以來最「非主流」的應用案例。
+ 很有趣的專案，雖然實務上反組譯器通常
#字體設計 #軟體工程 #Z80 架構 #OpenType #反組譯
Behold, a font that disassembles #Z80 instructions, because apparently, #programming wasn't nerdy enough without turning it into an art exhibit 🖼️🤓. GitHub's #innovation department strikes again, ensuring that even your font file can judge your code quality 👨💻📉. But hey, at least it's in #OpenType, because nothing screams "cool" like a file format from the early 90s! 🎉
https://github.com/nevesnunes/z80-sans #fontart #GitHub #HackerNews #ngated
Z80 Sans – a disassembler in a font (2024)
https://github.com/nevesnunes/z80-sans
#HackerNews #Z80 #Sans #Disassembler #Font #Programming #RetroTech #OpenSource
Save 15% off my #RC2014 (& compatibles!) peripherals at my Tindie store this weekend! (8th/9th March).
https://www.tindie.com/stores/quazar
SID Soundchip Interface
SAA1099P Soundchip Interface
Graphic OLED Module
ZX True Tone Module
ZX-RC Bus Interface
We're discussing about this industrial #Zilog #Z80 server machine. Two 8" floppy drives, no HDD. Someone of you know this machine?
Hold or exchange against another rare machine?
#ComputerMuseum
Well, that seems to work. Not quite done with testing the read api but it does the graceful thing and stops reading if you haven't flushed the read pointer. #retrocomputing #z80
Voy a darle un descanso al BASIC del Spectrum y a retomar mis lecciones de ensamblador para Zilog Z-80 y de código máquina. Necesito más velocidad y más eficiencia de los recursos. Además parece que el libro está dirigido personalmente a mí. 😎
Gameboy Gamedev stream !!
Bug solving wowowow something that has never happened nobody has ever solved bugs before me
Join me !! https://www.twitch.tv/astatinchan/
#vtuber #twitch #stream #gameboy #gamedev #gameboydev #retrocomputing #assembly #Z80 #happyBunny
:ablobcatattention: Books like this are rare, and even rarer being in spanish.
Brand new too. The cover was designed to look retro af.
Excelent as a gift for yourself or a friend.
｢ Artificial Intelligence for the Z80: If you can build it in 8 bits, you really get it: Computer science in BASIC ｣
https://www.amazon.es/Inteligencia-Artificial-para-Z80-construirlo/dp/B0GNZ9HSJ8
Developer creates 'Conversational AI' that can run in 64kb of RAM on 1976 Zilog Z80 CPU-powered System — features a tiny Chatbot and a 20-Question guessing Game.
The venerable Zilog Z80 CPU has been around since 1976, and it has powered everything from calculators and home computers to arcade cabinets. But the 8-bit microprocessor isn't exactly a powerful CPU compared to what we use today. That said, developer HarryR has created Z80-μLM, a working "AI" for the well-respected microprocessor.
⁉️[HarryR] confirms that it won't pass the Turing test, but it is a bit of fun. And no, the price of Z80s will not be impacted by AI.⁉️
https://github.com/HarryR/z80ai
#zilog #z80 #conversational #ai #retrocomputing #engineering #media #retro #tech #news
![👾According to the readme file, "Z80-μLM is a 'conversational AI' that generates short character-by-character sequences, with quantization-aware training (QAT) to run on a Z80 processor with 64kb of RAM." [HarryR]'s goal is to see how small an AI project can go, while still having a "personality". Can the AI be trained and fine-tuned? It seems that [HarryR] has done it in just 40KB, including inference, weights, and chat style user interface.👾
⁉️[HarryR] has kindly detailed the features of this Z80 AI project⁉️
• Trigram hash encoding: Input text is hashed into 128 buckets - typo-tolerant, word-order invariant
• 2-bit weight quantization: Each weight is {-2, -1, 0, +1}, packed 4 per byte
• 16-bit integer inference: All math uses Z80-native 16-bit signed arithmetic
• ~40KB .COM file: Fits in CP/M's Transient Program Area [TPA]
• Autoregressive generation: Outputs text character-by-character
• No floating point: Everything is integer math with fixed-point scaling
• Interactive chat mode: Just run CHAT with no arguments](https://files.mastodon.social/cache/media_attachments/files/116/148/326/283/992/135/original/dad7e974fe652505.jpeg)
![[ImageSource: HarryR]
👾The project comes with two examples. Tinychat is a conversational chatbot that responds to greetings and questions about itself with very short replies. The other is Guess, a 20-question game where the model knows a secret and I must try to guess.👾
Both of these examples are made available as binaries for use with CP/M systems and the Sinclair ZX Spectrum. The CP/M files are typical .COM files that anyone can easily run. For the ZX Spectrum, there are two .TAP files, cassette tape images that can be loaded into an emulator, or on real hardware.
The chatbot's AI is limited but nuanced.
• OK - acknowledged, neutral
• WHY? - questioning your premise
• R U? - casting existential doubt
• MAYBE - genuine uncertainty
• AM I? - reflecting the question back
⁉️According to [HarryR], "....it's a different mode of interaction. The terse responses force you to infer meaning from context or ask probing direct yes/no questions to see if it understands or not". The responses are short on purpose, sometimes vague, but there is a personality inferred in the response. Or could this just be a human brain trying to anthropomorphize an AI into a real person?⁉️](https://files.mastodon.social/cache/media_attachments/files/116/148/326/316/860/680/original/100ed8b175f03a5d.jpeg)
![[ImageSource: Gettyimages]
⁉️Will AI Create The Z80-pocalypse⁉️
The short answer is no, there is nothing to fear! But the Z80 has seen its life threatened during its 50-year lifespan.
👾In 2024, the Z80 finally reached end of life/last time buy status according to a Product Change Notification [PCN] that I saw via Mouser. Dated April 15, 2024, Zilog advised customers that its "Wafer Foundry Manufacturer will be discontinuing support for the Z80 product.…" But fear not, as back in May 2024, one developer was working on a drop-in replacement. Looking at Rejunity's Z80-Open-Silicon repository, I can see that did in fact happen via the Tiny Tapeout project.👾
<https://www.mouser.com/PCN/Littelfuse_PCN_Z84C00.pdf>
<https://github.com/rejunity/z80-open-silicon?tab=readme-ov-file>](https://files.mastodon.social/cache/media_attachments/files/116/148/326/341/328/751/original/6b63c8d09de86796.jpeg)
My Z80 Opcode Calculator app on Google Play was updated yesterday. Undocumented opcodes are now included. Test away!
#z80 #msx #zxspectrum #amstrad
https://play.google.com/store/apps/details?id=z80opcodecalculator.bitsofbas.com
Frank Wille has updated vasm, a portable assembler for numerous CPUs with various syntax and output modules. Changes in this release:
I built a computer from scratch! | RC2014 Z80 computer kit assembly.
Quazar Graphic OLED - Retro Programming in C and Z80 Assembly on the RC2014
Connecting a 1980s Z80 CPU to an Arduino, making a hardware debugger.
https://linktr.ee/quazarsamcoupe
A quick post to my new LinkTree for links to everything #retrocomputing I do - my main website for all my SAM Coupe development, the two smaller sites for ZX Spectrum hardware and peripherals for RC2014 & compatibles. My other social media accounts and my Tindie and eBay stores.
#samcoupe #zxspectrum #rc2014 #retrogaming #demoscene #indiedev #gamedev #z80
Gameboy Gamedev stream !!
Doing some more small changes to the boss music and then assembly :3
Join me !! https://www.twitch.tv/astatinchan/
#vtuber #twitch #stream #gameboy #gamedev #gameboydev #retrocomputing #assembly #Z80 #happyBunny
AmigaWave: Entrevista a Ben y Mario, miembros del desarrollo del Dandanator Mini para Amstrad CPC
En el episodio #424 de AmigaWave, Ben y Mario presentaron el Dandanator Mini para Amstrad CPC, un periférico pensado para facilitar la carga y distribución de software en equipos retro. Tras el éxito en ZX Spectrum, el dispositivo adopta un diseño inspirado en la Amstrad GX4000, lo que le ha valido el apodo de “GX4000 Mini”.
Se conecta al puerto Edge de los CPC 464, 664 y 6128 (no compatible con la gama Plus) y apuesta por un diseño modular: el lector principal funciona con cartuchos intercambiables que contienen la ROM, abaratando costes y simplificando la distribución. Incluye botones de reset y carga de ROM alternativa, además de un puerto USB-C para conexión directa al PC.
Dispone de 512 KB de memoria Flash para mapear bancos de ROM de forma rápida. Al encender el CPC, muestra un menú instantáneo de selección de software. Si no hay cartucho insertado, el equipo arranca en BASIC gracias a su función pass-through.
El gestor multiplataforma permite crear compilaciones propias y enviar juegos vía USB-C en apenas 2-3 segundos. Incluye base de datos de pokes y opciones de personalización del menú, aunque adaptar imágenes a la paleta CPC requiere trabajo.
El sistema también sirve como plataforma de distribución para nuevos desarrollos homebrew. Se anunciaron recopilatorios clásicos de Dynamic Software y el cartucho “La bolsa del CAT”. Las unidades se venden principalmente en eventos como RetroParla por unos 50€ (CPC), mientras que los cartuchos individuales rondan los 20-25€, destacando su fabricación artesanal mediante carcasas impresas en 3D.
Si quieres más detalles, te aconsejamos que te pases por el canal de Amiga Wave y disfrutes de la entrevista completa que además incluye como siempre, un repaso a las últimas noticias.
https://www.youtube.com/live/XvP7kTrc3dA?si=0P0xeq-GJyyqFF-l
#amstradCpc #aventurasConversacionales #cargaInstantánea #cartridgeSystem #cartuchoROM #DandanatorMini #DynamicSoftware #GX4000Mini #HardwareRetro #homebrew #instantLoading #passThrough #retroComputing #retroHardware #retroinformática #RetroParla #ROMCartridge #sceneRetro #USBCTransfer #Z80
Chapter 2 of my memoir is up: "The Locked Room."
A computer no one could touch, a lift that never stopped, and the Z80 chip that turned out to be more important than anyone told me.
https://stevewetherill.substack.com/p/chapter-2-the-locked-room
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