Re: iBook and playing DVDs
On Sun, May 19, 2002 at 08:01:57PM -0400, Albert D. Cahalan wrote:
> Daniel Jacobowitz writes:
> > On Sun, May 19, 2002 at 07:44:35PM -0400, Albert D. Cahalan wrote:
>
> >> The cache manipulation instructions are nice.
> >> Even w/o the extra AltiVec ones, you can do a
> >> lot with 32-byte chunks of memory.
> >
> > If you're willing to assume the cacheline size, which
> > varies between existing PowerPC implementations.
>
> Given this:
>
> 1. not AltiVec or that 8xxx vector thing
> 2. fast enough to decode a DVD (7xx, not 6xx)
> 3. not 64-bit
> 4. has video hardware
>
> Where is it not 32 bytes per cacheline?
I was under the impression that the 4xx line were perfect matches: take
PCI video, no vector hardware, definitely 32-bit, quite fast. I might
be mistaken about the line size on those, though.
--
Daniel Jacobowitz Carnegie Mellon University
MontaVista Software Debian GNU/Linux Developer
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