This is the problem with communicating over text methods, I didn't mean
to diminish the AMD64 bit processor, I was trying to examine the
difference between the Opteron and the Itanium. We must also qualify
here that Opteron is geared towards desktop users, whereas Itanium is
geared towards server usage. In some respects it is like comparing
apples and oranges, some not. My main point was that the 64-bit
instruction set that Itanium uses is different from the 64-bit
instructions set that Opteron uses. I don't know how I got on the topic,
but there you go.
Alex
> -----Original Message-----
> From: plug-discuss-admin@lists.plug.phoenix.az.us
[mailto:plug-discuss-
> admin@lists.plug.phoenix.az.us] On Behalf Of plug
> Sent: Friday, April 16, 2004 8:45 AM
> To: plug-discuss@lists.plug.phoenix.az.us
> Subject: RE: AMD64
>
> What I was getting at is that the Opteron is a "true" 64-bit
processor,
> just as the Itanium is a "true" 64-bit processor. The Opteron has a
> full 64-bit mode of operation, along with various compatibility modes.
> The Itanium only operates in 64-bit mode, and must emulate 32-bit
> execution, if I am not mistaken. I just thought it was funny that a
guy
> with an intel.com address said something about how AMD64 processors
are
> "just a 64-bit extension set to the IA32 architecture" as though it
> makes the Opteron any less of a 64-bit processor. AMD is taking the
> same approach that Intel took from 16 to 32-bit processing, with their
> move from 32 to 64-bit processing. And in fact, Intel is apparently
> going to take the exact same approach to the move from 32-bit to
64-bit,
> themselves.
>
> The preceding has been my opinion and understanding of the facts,
please
> let me know if I am mistaken...
> -Erik
>
> >>> alex.c.earl@intel.com 04/16/04 7:08 AM >>>
> 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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