Autonomous pipeline reconfiguration for continuous error correct

Details Autonomous pipeline reconfiguration for continuous error correct Autonomous pipeline reconfiguration for continuous error correct

1995-05-05

1997-05-13

Beausoliel, Jr., Robert W.

Excavating

371 402, H03M 1300, G06F 1100

Patent

active

056300557

ABSTRACT:
A computer system includes a central processing unit which further includes an execution unit and two levels of data cache and an error checking and correcting unit. During error-free operation, external cache fill data is supplied directly to the execution unit while a copy of the data is checked by the error checking and correcting unit. In response to detection of an error by the error checking and correcting unit, the use of the fill data by the execution unit is aborted. Furthermore, the data path for fill data is dynamically reconfigured to force remaining pending fill data to pass through the error checking and correcting unit prior to reaching the execution unit or either of the caches. Once all pending fill data has been processed, the data path is reconfigured back to its error-free mode of operation such that fill data is transmitted directly to the execution unit while a copy of the data is checked by the error checking an correcting unit.

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