Apparatus for automatic instruction parity error recovery.

摘要

The method for recovery from an instruction parity error consists in forcing a No-Operation instruction onto the processor's instruction bus (11) in place of the faulty instruction when a parity error is detected during instruction fetch, storing the address of the instruction having the parity error, and forcing the next instruction to the processor (2) from a parity error recovery routine. The parity error recovery routine logs the error, restores the instruction from local disk storage or from a remote host system in communication (via 6) with the processor (2) and forces the processor (2) to resume fetching instructions at the address where the error occurred.