System and method for providing predicate data to multiple...

Details System and method for providing predicate data to multiple... System and method for providing predicate data to multiple...

2007-05-01

2007-05-01

Sparks, Donald (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Instruction modification based on condition

C712S219000

Reexamination Certificate

active

10648960

ABSTRACT:
A processing system provides predicate data that indicates whether instructions processed by a processor pipeline should be executed by the pipeline. In architecture, the system of the present invention utilizes a register, a pipeline, and predicate circuitry. The pipeline includes a first stage and a second stage for processing instructions of a computer program. The predicate circuitry is configured to read a first predicate value from the register and to receive a second predicate value. The predicate circuitry may transmit the first predicate value read from the register to the first stage and then select between the first predicate value and the second predicate value. The predicate value selected by the predicate circuitry is transmitted to the second stage.

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Gary Lauterbach, “Sun's Next-Generation High-End SPARC Microprocessor,” Microprocessor Forum, Oct. 14-15, 1007, pp. 3-6.

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