Method for priority-encoding interrupts and vectoring to...

Details Method for priority-encoding interrupts and vectoring to... Method for priority-encoding interrupts and vectoring to...

2003-02-12

2010-06-15

Stiglic, Ryan M (Department: 2111)

Electrical computers and digital data processing systems: input/

Interrupt processing

Handling vector

C710S260000, C710S264000

Reexamination Certificate

active

07739438

ABSTRACT:
A method for interrupt priority encoding and vectoring begins with reading pending interrupt bits from an interrupt status register. An entry in a table is located using the pending interrupt bits. The table has a plurality of vector entries for at least one high priority interrupt bit, and a single entry for at least one low priority interrupt bit. A vector address is fetched from the table and a branch is performed to the vector address. An alternate embodiment has high and low priority interrupt vector tables, where the high low priority interrupt vector table is used if no high priority interrupt is present.

REFERENCES:
patent: 5511200 (1996-04-01), Jayakumar
patent: 5724599 (1998-03-01), Balmer et al.
patent: 5968159 (1999-10-01), Mattheis
patent: 6205509 (2001-03-01), Platko et al.
patent: 6298410 (2001-10-01), Jayakumar et al.
patent: 6694398 (2004-02-01), Zhao et al.
patent: 6754754 (2004-06-01), Quach et al.
patent: 6845419 (2005-01-01), Moyer
patent: 7054974 (2006-05-01), Quach et al.
patent: 7143219 (2006-11-01), Chaudhari et al.
patent: 7506091 (2009-03-01), Kershaw et al.
patent: 2003/0204655 (2003-10-01), Schmisseur et al.
patent: 2004/0143692 (2004-07-01), Pezzini
patent: 2004/0177192 (2004-09-01), Pezzini
patent: 2005/0102460 (2005-05-01), Wahler
patent: 001063588 (2000-12-01), None
High Speed External Interrupt Handler for Real Time System, IBM Technical Disclosure Bulletin, Sep. 1992.

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