While adding MMU emulation has been discussed, the feature has not been added because of the effort required in implementing it, the impact on performance it will have and the lack of time on the part of the developers. SheepShaver is capable of running Mac OS 7.5.2 through 9.0.4 (though it needs the image of an Old World ROM to run Mac OS 8.1 or below ), and can be run inside a window so that the user can run classic Mac OS and either BeOS, Intel-based Mac OS X, Linux, or Windows applications at the same time.Īlthough SheepShaver does have Ethernet support and CD-quality sound output, it does not emulate the memory management unit. 'Chubby Bunny' also simplifies the set up process of OS 9 visualization on Intel Macs running OS X.‘Sheep Shaver Wrapper’ is built off of Sheep Shaver but it does some of the bundling work for the user.Īs a free software, a few variants exist to simplify the installation process on Intel-based Macs: SheepShaver has also been ported to Microsoft Windows. It can be run on both PowerPC and x86 systems however, it runs more slowly on an x86 system than on a PowerPC system, because of the translation between the PowerPC and Intel x86 instruction sets. However, you still need a copy of Mac OS and a PowerMac ROM image to use this program. That is, it enables you to run PowerPC Classic Mac OS software on your computer, even if you are using a different operating system. SheepShaver was originally commercial software when first released in 1998, but after the demise of Be Inc., the maker of BeOS, it became open source in 2002. SheepShaver is an Open Source PowerPC Mac OS run-time environment.

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