[haiku-development] Re: PowerPC and the APM
- From: richard jasmin <jasminr@xxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Tue, 12 Aug 2008 16:42:29 -0400
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Tiger was emulated with rosetta by a crack-team or apple, i forget
which.i think both.apple tried it and somebody came in and finished the
job and open up to 'vanilla' plain jane DUO CORE cpus.
the PPC instructions at that stage are fully emulated into INTEL ones,
explaining why Tiger is so much slower than Leopard.
i believe Apple did this as a BETA and somebody leaked it into INTEL
OSX86 Tiger.Apple had full plans to convert to INTEL, just had wanted it
on thier propriatary hardware like the mini, not plain ole intel
hardware you can find anywhere.This explain the move to EFI.
Andreas Färber wrote:
> Hi Duane,
>
> Am 12.08.2008 um 20:49 schrieb Duane Ryan:
>
>> The cool thing about this map is that, theoretically, both ppc and
>> apple's i386 macs can boot it, using a universal binary. So if I get
>> this image working, intel macs will be able to boot this sucker.
>
> You sure about that? I thought Rosetta was a feature of Mac OS X v10.4+
> on Intel, not of the Intel Macs at EFI or hardware level... If you reach
> the point of trying to execute ppc (e.g., kernel) machine code as
> generated by the Haiku cross-compiler, I don't think it's going to
> execute on an i386 machine (illegal instruction etc.).
>
> Andreas
>
>
>
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