Messages in this thread | | | Date | Thu, 26 Feb 2004 14:46:00 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: Intel vs AMD64 |
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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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