> However, this still raises the interesing question of whether endian-ness
> even belongs in MACHINE_ARCH.  Obviously for some processors endian-ness
> is determined by MACHINE_ARCH, so besides Mips and Hitachi, what other
> processors can run in big or little endian modes?

I've heard that all powerpc platforms can execute big endian kernel,
thus powerpc on NetBSD is always big endian.
There is no bi-endian platform other than above.
--
soda