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Arithmetic unit

N Sidwell, Arithmetic unit . Patent. US5859789. January 1999. No electronic version available. External information

Abstract

There is disclosed an arithmetic unit which allows a combined multiply-add operation to be carried out in response to execution of a single computer instruction. This is particularly useful in a packed arithmetic environment, when a operand comprises a plurality of packed objects and the intention is to carry out the same arithmetic operation on respective pairs of objects in different operands. There is also provided a computer and a method of operating a computer to effect the combined multiply-add operation.

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