Floating-point processor with reduced power requirements for...

G - Physics – 06 – F

Patent

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G06F 7/57 (2006.01) G06F 7/499 (2006.01)

Patent

CA 2641334

A method and apparatus for performing a floating-point operation with a floating-point processor having a given precision is disclosed. A subprecision for the floating-point operation on one or more floating-point numbers is selected. The selection of the subprecision results in one or more excess bits for each of the one or more floating-point numbers. Power may be removed from one or more components in the floating-point processor that would otherwise be used to store or process the one or more excess bits, and the floating-point operation is performed with power removed from the one or more components.

La présente invention concerne un procédé et un appareil permettant la réalisation d'une opération à virgule flottante avec un processeur à virgule flottante ayant une précision donnée. Une précision inférieure pour l'opération à virgule flottante sur un ou des nombres à virgule flottante est choisie. La sélection des résultats de la précision inférieure est un ou des bits excédentaires pour chacun du ou des nombres à virgule flottante. De l'énergie peut être soustraite d'un ou de plusieurs composants dans le processeur à virgule flottante qui seraient autrement utilisés pour stocker ou traiter le ou les bits excédentaires, et l'opération à virgule flottante est réalisée avec de l'énergie soustraite d'un ou de plusieurs composants.

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