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data dependency

A Dictionary of Computing | 2004 | | © A Dictionary of Computing 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

data dependency A situation in which an instruction is dependent on a result from a sequentially previous instruction before it can complete its execution. In high-performance processors employing pipeline or superscalar techniques, a data dependency will introduce a disruption in the smooth operation of a processor pipeline or inhibit the parallel issue of instructions in a superscalar processor.

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