How to tell whether CPU supports x64?

[Chad Perrin]

On Thu, Mar 17, 2011 at 07:54:13PM -0500, Adam Vande More wrote:
> On Thu, Mar 17, 2011 at 7:30 PM, Chad Perrin <perrin at apotheon.com> wrote:
> 
> > . . . or maybe it is a 64 bit CPU that is not x86_64/amd64 compatible.
> > Do IA-64 (Itanium), IBM POWER, and SPARC 64 bit processors use the same
> > Long Mode functionality?
> >
> 
> No, it is a function of it's ancestry, real mode, protected mode(16 & 32),
> and long mode.  Completely 64 bit native architectures like IA-64 have no
> need for such tricks,

That's what I thought -- I just wanted to be sure before committing
myself to a statement to that effect, since CPU arhictectures are not my
specialty by any stretch of the imagination.

-- 
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]
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