Method and apparatus for transparently sharing an exception...

Details Method and apparatus for transparently sharing an exception... Method and apparatus for transparently sharing an exception...

2007-11-27

2007-11-27

Thomson, William (Department: 2194)

Electrical computers and digital processing systems: interprogra

Event handling or event notification

C710S269000, C712S222000, C714S025000, C714S028000, C714S030000, C718S102000

Reexamination Certificate

active

10631062

ABSTRACT:
A method, apparatus and computer instructions for handling exception vectors by firmware. An exception vector is identified to form an identified exception vector when control is passed from an operating system to the firmware. The identified exception vector is saved to form a saved exception vector. The identified exception vector is then replaced with a substitute vector; and the saved exception vector is restored when control is returned to the operating system to form a restored exception vector. At that point, the restored exception vector is again used to perform error and debugging processes.

REFERENCES:
patent: 4768149 (1988-08-01), Konopik et al.
patent: 4809157 (1989-02-01), Eilert et al.
patent: 5065354 (1991-11-01), Jons et al.
patent: 5446877 (1995-08-01), Liu et al.
patent: 5455919 (1995-10-01), Brewer et al.
patent: 5586301 (1996-12-01), Fisherman et al.
patent: 5794063 (1998-08-01), Favor
patent: 5867658 (1999-02-01), Lee
patent: 5909567 (1999-06-01), Novak et al.
patent: 6397382 (2002-05-01), Dawson
patent: 7085705 (2006-08-01), Traut
patent: 7133951 (2006-11-01), Bourekas
patent: 2004/0123086 (2004-06-01), Rothman et al.
“Itanium™ Processor Floating-point Software Assistance and Floating-point Exception Handling.” Intel Corp., Jan. 2000.
Jones, Steve. “Using spinlocks in a symmetric multiprocessing environment.” Tech Specialist, v2, n10, p. 15(6), Oct. 1991.
IBM Technical Bulletin: NNRD447149. “Method to Prevent Multiple Processes After Taking Exceptions To Enter Open Firmware In a Symmetrical Multiprocessor machine”, Published Jul. 1, 2001.

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