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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Cool stuff: Creating a Mac emulator using JavaScript with James Friend on the Hanselminutes Technology Podcast: Fresh Air for Developers

Posted by jpluimers on 2014/03/05

Just listened to the PodCast Creating a Mac emulator using JavaScript with James Friend on the Hanselminutes Technology Podcast: Fresh Air for Developers.

James Friend is the author of PCE.js – Classic Mac OS in the Browser, the  (and also a very friendly guy).

PCE.js is a port of PCE built using Emscripten and asm.js (Emscripten requires pure portable idiomatic C, which – back then – was a really portable language). The port is explained in more detail by Mike Bull from mayflymedia. The PodCast also goes into more detail: The PCE code is very clean and easy to understand; in memory patching for floppy emulation and mouse pointer position; moving Mac video memory to the emulator canvas in the SDL window. And James explains the “why” as well: Why port emulators to the browser?.

The SDL in Emscripten is reimplemented to map video to the html5 canvas, and outputs audio to html5 audio.

The source code for PCE.js is in his jsdf GitHub realm as the PCE repository.

PCE.js runs Mac OS 7. I also found out that recently James released a VM for Running a Hypercard stack on a modern Mac based on SheepShaver: it runs Mac OS 9 with Hypercard, and allows to transfer files from/to your physical Mac.

–jeroen

via: Creating a Mac emulator using JavaScript with James Friend on the Hanselminutes Technology Podcast: Fresh Air for Developers.

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