--- title: A 1990s Homebrew OS With GUI And Web Browser, In AM29000... description: A retrocomputing story about Oscar Toledo G. and his father building a high-performance computer around AMD's AM29000 processor in the early days of that... canonical: https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A 1990s Homebrew OS With GUI And Web Browser, In AM29000 Machine Code | daily.dev og:description: A retrocomputing story about Oscar Toledo G. and his father building a high-performance computer around AMD's AM29000 processor in the early days of that... og:url: https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz og:image: https://api.daily.dev/og/posts/NkuNAd8iZ.png og:image:alt: A 1990s Homebrew OS With GUI And Web Browser, In AM29000 Machine Code og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A 1990s Homebrew OS With GUI And Web Browser, In AM29000 Machine Code **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary A retrocomputing story about Oscar Toledo G. and his father building a high-performance computer around AMD's AM29000 processor in the early days of that architecture, then writing a full operating system for it entirely in AM29000 assembly, complete with a GUI, a C compiler, and a period-accurate web browser. The two-part writeup covers the hardware and early software development, then the compiler and browser work, including hand-porting C code into machine code, and features an in-browser emulator to try it out. The same author previously built a Transputer emulator for the browser. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Unearthing my 1996 windowed OS in machine code for Am29000 homebrew computer](https://daily.dev/posts/unearthing-my-1996-windowed-os-in-machine-code-for-am29000-homebrew-computer-qtd6lniud) · Hacker News · 0 upvotes · 0 comments - [2026 Retrocomputing Challenge: A Homebrew Computer In Only Three ICs](https://daily.dev/posts/2026-retrocomputing-challenge-a-homebrew-computer-in-only-three-ics-j0juvrxgu) · Hackaday · 0 upvotes · 0 comments - [os8088 -- a Mac-style GUI OS for the IBM PC XT](https://daily.dev/posts/os8088----a-mac-style-gui-os-for-the-ibm-pc-xt-5eeukkqfl) · Hacker News · 0 upvotes · 0 comments - [NostOS: the Nostalgia Operating System for the RC2014 retro/vintage computer](https://daily.dev/posts/nostos-the-nostalgia-operating-system-for-the-rc2014-retro-vintage-computer-9p2b4ddcu) · Adafruit Blog · 0 upvotes · 0 comments - [The PC OS That Would Have Blown Your Mind Back In 1984](https://daily.dev/posts/the-pc-os-that-would-have-blown-your-mind-back-in-1984-7gqt0h1rq) · Hackaday · 0 upvotes · 0 comments --- Tags: [#retrocomputing](https://daily.dev/tags/retrocomputing) [View this post on daily.dev](https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A 1990s Homebrew OS With GUI And Web Browser, In AM29000 Machine Code","url":"https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz"},"datePublished":"2026-08-24T23:28:40.883Z","dateModified":"2026-08-24T23:28:58.445Z","description":"A retrocomputing story about Oscar Toledo G. and his father building a high-performance computer around AMD's AM29000 processor in the early days of that...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/6791e4f28eef6c1b7581e04ecada2bcd?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/6791e4f28eef6c1b7581e04ecada2bcd?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hackaday","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hackaday","logo":"https://media.daily.dev/image/upload/s--JhDfhy70--/f_auto,q_auto/v1767541814/logos/hackaday","url":"https://daily.dev/sources/hackaday"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/a-1990s-homebrew-os-with-gui-and-web-browser-in-am29000-machine-code-nkunad8iz","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"retrocomputing","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hackaday","item":"https://daily.dev/sources/hackaday"},{"@type":"ListItem","position":3,"name":"A 1990s Homebrew OS With GUI And Web Browser, In AM29000 Machine Code"}]} ```