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Re: ppc vs ppc64 vs powerpc?

On 7/1/07, Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote: 

  not being an expert on the powerpc platform, can someone clarify the
differences between the above?  the current situation is somewhat
confusing since there are only two subdirectories under arch/ --
powerpc and ppc -- yet i see constant references to the "ppc64"
architecture.


There was some effort a few releases ago to consolidate the two
architectures ppc and ppc64 under powerpc. ppc refers, generally, I
believe to 32-bit power and ppc64 to 64-bit power. powerpc is the
common bits of both (which is all of ppc64, I guess). I think the
references you see are just people used to the old nomenclature, or
they might mean explicitly the 64-bit powerpc world. It would depend
on the context, I presume.

what is the current preferred usage? thanks. 

Depends on the context :) I think any of the above terms will get the
point across. ppc32 = 32-bit powerpc, ppc64 = 64-bit powerpc, powerpc
= powerpc architecture?

Thanks,
Nish

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