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SubjectRe: Intel vs AMD64
On Thu, 26 Feb 2004, Timothy Miller wrote:

>
>
> Richard B. Johnson wrote:
>
> > Whether or not the CPU traps this invalid instruction is moot. No
> > compiler would emit junk like this and anybody horsing around with
> > an assembler deserves whatever they get, although you shouldn't
> > be able to smoke the CPU on a multi-user multitasking system because
> > it can be used as a DOS attack.
>
>
> If this is junk that's invalid, why was it mentioned in the first place?
>

Because there are hobbiest that look for undocumented op-codes, see
http://www.x86.org

They find some interesting things and then they wonder if what
they've found will work with other vendor's CPUs.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
Note 96.31% of all statistics are fiction.


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