Method and apparatus for reducing false error detection in a...

Error detection/correction and fault detection/recovery – Pulse or data error handling – Error/fault detection technique

Reexamination Certificate

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C712S244000

Reexamination Certificate

active

07555703

ABSTRACT:
A technique to reduce false error detection in microprocessors. A pi bit is propagated with an instruction through an instruction flow path. When a parity error is detected, the pi bit is set, instead of raising a machine check exception. Upon reaching a commit point, the processor can determine if the instruction was on a wrong path.

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