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Thomas

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#macintosh

A collection of 3 posts

July 5, 2026

Installing A/UX 1.1 like it's the 90s

Recently, I have been successful in making A/UX boot and run stable on my vintage Macintosh emulator; Snow. A/UX was Apple’s version of UNIX that ran on the 68k-based series Macs. It required a Memory Management Unit to achieve process...

macintosh emulation retro

November 16, 2025

Digital echoes: open bus behavior on the compact Macintosh

While working on Snow, my vintage Macintosh emulator, I came across an interesting conflict in expectations of applications with regards to open bus behavior on these systems. In this article I’ll explain what open bus behavior is, how a compact...

macintosh emulation

August 23, 2024

Emulating the early Macintosh floppy drive

I have been working on an emulator for early (Motorola 68000-powered) Macintosh computers. While implementing the disk drive, I noticed documentation was scattered and hard to find. Now that I have a working implementation, this post is my attempt to...

macintosh emulation floppy

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