That is what I understood as well, perhaps I am wrong. I do know that
the 64-bit instruction set they use is just an extension to the 32-bit
as 32-bit is to 16-bit (again I guess I could be mistaken but this is
what I understood). The Intel 64 bit Itanium is a different instruction
set (which fixes some of the problems with IA32 instruction set). 

That is what I meant by extension, extension to the instruction set.

Anyway...


> -----Original Message-----
> From: plug-discuss-admin@lists.plug.phoenix.az.us
[mailto:plug-discuss-
> admin@lists.plug.phoenix.az.us] On Behalf Of David Huerta
> Sent: Thursday, April 15, 2004 10:47 PM
> To: plug-discuss@lists.plug.phoenix.az.us
> Subject: RE: AMD64
> 
> From what I understand, the AMD64 chipset is basically two 32-bit AMD
> chips sandwiched together to act like a 64-bit dual-processor-ish
system.
> 
> --
> + David "Huertanix" Huerta
> + DeVry Linux User Group
> + http://www.devrylinux.org
> 
> On Thu, 15 Apr 2004, plug wrote:
> 
> > AMD64 chips process 64-bit data and instructions, do they not?
> > -Erik
> >
> > >>> alex.c.earl@intel.com 04/15/04 1:23 PM >>>
> > The Itanium processor is a true 64-bit processor, whereas the AMD64
(if
> > you are referring to Opteron) is just a 64-bit extension set to the
IA32
> > architecture.
> >
> > Alex
> >
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