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Re: [Qemu-devel] Re: usermode emulation for ppc host
From: |
J. Mayer |
Subject: |
Re: [Qemu-devel] Re: usermode emulation for ppc host |
Date: |
Wed, 31 Aug 2005 22:55:13 +0200 |
On Wed, 2005-08-31 at 17:40 +0200, Antonio Vargas wrote:
> On 8/30/05, Antonio Vargas <address@hidden> wrote:
> > Having a look at the sources, I've noticed that extra ppc registers
> > are only used when doing usermode-inly emulation and not when doing
> > fullsystem-mode. Can anyone tell me where should I look for problems
> > when disabling that restriction? I've already tried to enable the use
> > of these registers but of course it's there for some reason as it
> > doesn't boot anything when I enable them.
>
> OK.. more inspection has revealed ppc/op_helper.c which states:
>
> "XXX: fix it to restore all registers"
>
> looks like registers could be smashed when entering it and not being
> saved/restored by gcc??? will have to find out more...
Do you mean PPC host or target ?
target-ppc subdirectory is used when emulating a PowerPC, that is for
PPC target.
If you really talk about PowerPC host emulation, not PowerPC target,
then target-ppc subdirectory code is not concerned.
--
J. Mayer <address@hidden>
Never organized