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AssigneeSharp Kabushiki Kaisha
InventorTakahiko Nakano
Estimating the term…
A data driven information processor circulates a data packet therein, while in accordance with a previously prepared data flow program the processor performs a plurality of types of operation including performing an arithmetic operation on data and accumulating a result of the arithmetic operation in an accumulation operation performed repeatedly. The accumulation operation is performed in the information processor only at a product-sum operation portion. While the operation is being performed, a data packet having stored therein data to be accumulated is not required to circulate round a loop formed of other components of the information processor. The accumulation operation can thus be performed fast.
A data processor comprising:
A data processor comprising:
Dependencies are inferred from the claim text.
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For evaluating functions by calculation: sum of products
Computing and data processing
Term end not estimated
1. Field of the Invention
The present invention relates generally to data processors and particularly to those having a function performing an operation calculating a plurality of sums for a result of an arithmetic operation.
2. Description of the Background Art
FIG. 1 shows a configuration of a data driven information processor of the present invention in each embodiment;
FIG. 2 shows a configuration of a product-sum operation portion 5A of a first embodiment;
FIG. 3 shows a configuration of an access portion 52A of FIG. 2;
Hereinafter the present invention in embodiments will be described with reference to the drawings. Herein, data packet 36 or 38 as aforementioned is used, although for the sake of clarity a process performed with reference to generation information will not be referred to.
First Embodiment
In the first embodiment there is provided a product-sum operation portion having two data tables and also receiving constant data CN indicative of a product repetition frequency required for a product-sum operation to output a result of the product-sum operation. More specifically, this product-sum operation portion uses constant data CN to perform an operation according to an arithmetic expression ACC=ACC+X(i)*Y(i) to obtain accumulation data ACC, wherein i=0 to (CN−1).