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Re: [Qemu-devel] PPC system emulator

From: J. Mayer
Subject: Re: [Qemu-devel] PPC system emulator
Date: Sat, 19 Jun 2004 17:23:57 +0200

On Sat, 2004-06-19 at 16:34, Gianni Tedesco wrote:
> On Sat, 2004-06-19 at 15:34 +0200, J. Mayer wrote:
> > for now, only PREP system will run, launching qemu this way:
> > qemu-system-ppc -prep -kernel <my_kernel> ...
> > Note that 2.2 and 2.6 kernels seem not to run for now.
> Ah cool, I'm actually interested in powermac emulation for running
> MacOSX. I have a powermac and a bunch of the manuals for the hardware,
> so I could help out in some of my very limited idle cycles :)

The powermac emulation isn't ready yet but may work soon (I hope !)
I'd like to see some hw manuals, if you can send some to me or give me
URLs if some are available from the net.

> > I temporary put the ROM sources and images there:
> > http://site.voila.fr/jmayer/OpenHackWare/index.htm
> > This is work in progress, so there may be lots of bugs or things to
> > improve.
> You aiming to implement all of OF, or just subset to boot fe.
> macos/linux? I take it thats the main blocker? As all but most basic
> hw/* stuff can be shared right...

I implemented quite the whole OF and RTAS interfaces. I didn't implement
Forth, as I can do without to launch Linux and OSX. It seems that I may
be able to launch a lot of OSes this way, but I may need to merge a real
Forth interpreter for some others.

Now, I can boot Linux without disks and start booting OSX (ie launch and
initialize the kernel). There are problems due to:
- bugs in the BIOS OF tree.
- hw emulation buggy or missing or not declared/used.
Most of the hw stuffs have been writen but not tested in "real"
conditions, so the work to do in qemu is now to get all hw components
work together and get debugged.

J. Mayer <address@hidden>
Never organized

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