In situ register state error recovery and restart mechanism

Details In situ register state error recovery and restart mechanism In situ register state error recovery and restart mechanism

2011-01-04

2011-01-04

Guyton, Philip (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S017000, C712S216000, C712S227000

Reexamination Certificate

active

07865769

ABSTRACT:
Embodiments of the invention relate to methods and systems for error detection and recovery from errors during pipelined execution of data. A cascaded, delayed execution pipeline may be implemented to maintain a precise machine state. In some embodiments, a delay of one or more clock cycles may be inserted prior to a write back stage of each pipeline to facilitate error detection and recovery. Because a precise machine state is maintained error detection and recovery mechanisms may be built directly into register files of the system. If an error is detected execution of the instruction associated with the error and all subsequent instructions may be restarted.

REFERENCES:
patent: 5905881 (1999-05-01), Tran et al.
patent: 6476643 (2002-11-01), Hugues et al.
patent: 6785842 (2004-08-01), Zumkehr et al.
patent: 7058877 (2006-06-01), Tremblay et al.
patent: 7370230 (2008-05-01), Flake
patent: 7496734 (2009-02-01), Richardson et al.
patent: 7512772 (2009-03-01), Gschwind et al.
patent: 7555692 (2009-06-01), Iacobovici
patent: 2003/0163763 (2003-08-01), DeLano
patent: 2003/0182534 (2003-09-01), Harthcock

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