Mac VirtualRiscPC undaunted by Apple x86 switchBy Chris Williams. Published: 13th Jun 2005, 14:00:14 | Permalink | Printable
A rumour is sometimes just a rumourThe recent news of Apple switching to Intel processors is unlikely to affect the release of VirtualRiscPC for Mac OS X. Following the announcement that the iPod manufacturer will be moving its PowerPC based platform to x86, there was speculation that the RiscPC emulator will require further substantial programming in order to work on the Intel platform. Apple is expected to complete its transition to x86 by the end of 2007.
However, Apple have told developers that they can create 'universal binaries' for application executables, which include code for PowerPC and x86 processors. Plus, of course, the emulation engine from the original Windows VirtualRiscPC, which converts ARM to x86 instructions, can be employed on the x86 Macs of the future. Graeme Barnes, VirtualRiscPC developer, explained that Apple's transition to a new architecture "shouldn't make any difference to the current OS X version of VRPC".
"I hope to have that out well before the x86 Macs come along," he explained. "The OS X version does contain an ARM to PPC JIT but when they release OS X for x86 I can use the original x86 JIT for that platform".
VirtualRiscPC for Mac OS X was demonstrated at Wakefield 2005, although is unavailable as yet. Interestingly, Apple will be bundling an emulation layer in the x86 version of Mac OS X, which will run PowerPC targeted code on x86.
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