Electrical computers and digital processing systems: processing – Processing control – Branching
Reexamination Certificate
2008-12-23
2011-12-13
Kim, Kenneth (Department: 2111)
Electrical computers and digital processing systems: processing
Processing control
Branching
C712S236000
Reexamination Certificate
active
08078849
ABSTRACT:
Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.
REFERENCES:
patent: 5659722 (1997-08-01), Blaner et al.
patent: 6112300 (2000-08-01), Cook et al.
patent: 6851046 (2005-02-01), Delvaus et al.
patent: 2007/0234019 (2007-10-01), Terashima
patent: 2008/0313443 (2008-12-01), Terashima
patent: 2009/0249047 (2009-10-01), Citron
Mike Shepherd, Juniper Networks, Inc. “White Paper: Characteristics of Switches and Routers”, Jan. 2006.
Papachristou, Christos A., “Hardware Microcontrol Schemes Using PLAs”, 14th Annual Microprogramming Workshop IEEE New York, NY, USA, 1981, XP002530422.
Hirschman, JA et al, “Microprogram Control System”, IP.COM Journal, IP.COM, Inc., West Henrietta, NY, USA, Mar. 1, 1980, XP013044292, ISSN: 1533-0001.
Papachristou, Christos A., “Method for Direct Multiway Branching in Microprogram Control”, Electronics Letters US, vol. 17, No. 19, Sep. 17, 1981, ISSN: 0013-5194.
Frailong Jean-Marc
Godbole Avanindra
Gupta Anurag P.
Keen John
Libby Jeffrey G.
Harrity & Harrity LLP
Juniper Networks, Inc.
Kim Kenneth
LandOfFree
Fast execution of branch instruction with multiple... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fast execution of branch instruction with multiple..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast execution of branch instruction with multiple... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4307122