Method and apparatus for controlling execution of...

Details Method and apparatus for controlling execution of... Method and apparatus for controlling execution of...

2005-11-01

2005-11-01

Tsai, Henry W. H. (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Branching

C712S229000

Reexamination Certificate

active

06961847

ABSTRACT:
In accordance with one embodiment, the invention provides a method comprising monitoring a power consumption of a processor in executing a program while running in a speculative execution mode wherein instructions are speculatively executed; and turning off said speculative execution mode if said power consumption is above a predetermined threshold. According to another embodiment the invention provides a processor comprising a speculative mode wherein instructions are speculatively executed; a non-speculative execution mode wherein instructions are executed non-speculatively; and a speculation control mechanism to selectively cause said processor to operate in said non-speculative mode based on a power consumption criterion.

REFERENCES:
patent: 5719800 (1998-02-01), Mittal et al.
patent: 5850543 (1998-12-01), Shiell et al.
patent: 6167524 (2000-12-01), Goodnow et al.
patent: 6282663 (2001-08-01), Khazam

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