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SubjectRe: pentium bug continued
This sort of thing isn't all that uncommon. The old 6800
had what we used to call the HCF opcode, "Halt and Catch
Fire". When a program got lost in hyperspace it
would inevitably hit either a Halt or this undocumented
feature, at which point the address lines became a
binary counter and the machine required a power reset
to get it back.

I wouldn't be surprised at all to find accidental or
QA opdcodes hidden away in other processors.




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