Yes, it is possible for hardware to do this.
Remember, if an instruction value is bad when the CPU
"sees" it, it doesn't matter how it got that way.
A bad memory chip, damaged CPU, dirty connection
with motherboard, etc. can all cause things like this.
I had to replace my old Cyrix 686 (pentium-class CPU)
last year because it overheated over a prolonged period
of time (bad cooling fan). The symptoms were frequent
illegal instructions, protection faults, and so on.
I replaced the CPU and fan, reinstalled the operating system
and -- poof! -- no more problem. (It's still a slow, 166 mhz
machine, but at least it doesn't blow up any more.)
~~Garry
[EMAIL PROTECTED]
----- Original Message -----
"Constant Brouerius van Nidek" <[EMAIL PROTECTED]> wrote:
> Dear Garry
> Understood (more or less ;-)) your expose.
> I am already working on this computer since months because it will
> not work properly. Is this opcode error caused by software only or
> could it also be caused by a hardware glitch?
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