Classic even has it's own Mac manufacturing code.Īpple purged a lot of 68K code in MacOS 8.5, but I'm not sure if they ever reached 100% PowerPC code in OS 9.2.2, that's one reason for OS X to begin with. TrueBlu besides not written for Xcode, could be re-compiled for Intel but it's main value is virtualizing a PowerPC-Mac capable of running MacOS. The 68K nanokernel is so complete the original PPC Macs could even boot 68K MacOS with no modifications - that's a feat of engineering. This means anything like drivers, extensions, applications, could be mixed 68K/PowerPC. Embedded in OS 9 is a 68K nanokernel emulator which allows it to run a mixed-architecture execution environment, even on the stack. TrueBlue is a proper OS X app which provided emulation of a MacOS 9 machine, it does not provide OS 9 itself. I think it was more like VMware but for a single purpose and only for PowerPC chips. As for running Classic, I don't think TrueBlu was even a proper emulator.
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