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Mac OS X 64-bit Kernel and Rosetta Compatibility with National Instruments Drivers

There's all sorts of software that doesn't run natively under modern OSes -- but it works fine under emulation. It's highly unlikely someone is going to create an entire run-time framework for a modern OS to run older software when there are already other methods available for doing so. It would be way easier to build something with an open source PPC emulator than try to modify or wrap Rosetta. It's called "user mode emulation".

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It would not work with OS9 applications as they rely on the classic mac libraries. There was someone briefly working on an OS9 compatibility layer. It didn't get very far and I don't think it's been worked on for a number of years.

Rosetta MacOS app Demo

It's an immensely daunting task. After all the work I've been doing on WrapperFinder, it naturally made me think of using the Toolbox's Window Manager to render windows to a graphics object and pass the object back to the host OS with a custom Finder.

The graphics object would then be displayed by SDL. However, it should definitely be possible regardless.

Snow Leopard Security Update Kills PowerPC Apps Using Rosetta

It would be a lot of fun to build, and also a bit of work. But nothing even close to the complexity of reverse engineering the OS9 libraries.


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I guess that codebase has been abandoned for over 10 years but the CPU emulator was simple enough to start hacking. There's not much to see yet but I compiled an stdio Hello World application and I can basically run it now. It's likely to be abandoned after I lose interest but here's an example output of it running the application and what it's internally doing, this is on xbit Linux.

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Rosetta is Apple's utility that lets applications designed to run only on PowerPC-based Macs to launch and run on Intel-based Macs, too. The list of applications that run natively on Intel and PowerPC Macs -- Universal applications -- is pretty extensive, and the number of apps that run only on Intel-based Macs is growing all the time.

Rosetta Os X Snow Leopard

Some applications, however, were never updated with Intel Mac support. Since changing applications isn't always an option, Rosetta is an important part of some Mac user's daily lives. Read our affiliate link policy for more details. At a Glance. Apple Mac OS X Peter Smith writes about personal technology for ITworld.