PPC/PPC64 disabled in Koji for dist-f13
John Reiser
jreiser at bitwagon.com
Thu Oct 1 13:41:35 UTC 2009
On 10/01/2009 04:54 AM, Krzysztof Halasa wrote:
> "Richard W.M. Jones"<rjones at redhat.com> writes:
>
>> Is ARM big endian?
>
> It can be either. Intel's IXP4xx networking chips are usually running
> BE since their internal network engines are BE-only and it's thus
> more efficient.
The IXP4xx networking engine operates big endian only. Nevertheless
many NSLU2 machines run little-endian and still use that networking
hardware. Current and future Debian releases for ARM (which is a
top-tier architecture on Debian) are little-endian only. Little-
endian operation of the CPU offers the advantage that an unaligned
fetch from memory gives results that are usable after quick fixup.
An unaligned fetch in big-endian mode essentially gives junk.
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