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Re: [Qemu-devel] Re: compile qemu for a G5

From: J. Mayer
Subject: Re: [Qemu-devel] Re: compile qemu for a G5
Date: Tue, 12 Oct 2004 23:20:29 +0200

On Tue, 2004-10-12 at 20:55, Joshua Root wrote:
> >On Tue, 12 Oct 2004 13:50:41 +0200, J. Mayer <address@hidden> wrote:
> >>  Are you sure ?
> >>  G5 is a 64 bits PPC, but POWER isn't: some instructions are not the same
> >>  between the two architectures.  So, some Power4 opcodes and registers
> >>  will never be recognized on any PPC. With luck, the Power code may run
> >>  on PPC, but there's no waranty.
> >
> >The PowerPC ISA is *broadly* compatible with POWER 's. I suggest you
> >to read up some technical documents on the subject. Plenty of them
> >have been made available at IBM's developer pages.
> >
> >Moreover, POWER4 *IS* 64-bit
> IIRC, the POWER4 is in fact a PowerPC, while earlier POWER chips are 
> not. That is why -mcpu=power4 will work on a G5.

Well, just checked, you're absolutely right. Sorry for the mistake.
J. Mayer <address@hidden>
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