On 12/28/05, Bobby Bingham <[EMAIL PROTECTED]> wrote:
> On Thu, 29 Dec 2005 02:42:52 +0100
> Arne Olav <[EMAIL PROTECTED]> wrote:
> > > The Demo Disc containing  king kong, has all it's vector
> > > shaders source code
> > > + vector source code compiled on the disc.
> > >
> > > It looks like it is loading them.
> >
> > Isn't this huge news? I read up on the Xenos graphics processor in
> > this article
> > ( http://www.beyond3d.com/articles/xenos/index.php?p=10 ): "In simple
> > terms the MEMEXPORT function is a method by which Xenos can push and
> > pull vectorised data directly to and from system RAM."
> >
> > If the data containing the shaders for the king kong demo isn't signed
> > (which it isn't if it's not inside the executables?) it could be
> > modified to use the MEMEXPORT instruction to read and write anything
> > to the xbox 360's unified memory and output information to the screen.
> It may be possible, assuming the executable doesn't check the shader's
> hash before loading it.

It also must be considered that it may not go through the hypervisor,
and thus would give you the encrypted memory (as if you were reading
it straight off the chips)

- Cody

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- Maynard James Keenan - Tool -  "Eulogy"

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- Emily Dickinson

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