METHOD AND APPARATUS FOR DETECTING DUPLICATE ENTRIES IN A LOOK-UP TABLE

摘要

A method and apparatus detects whether more than one object has been selected from a set of objects. A unique code and an error code is coupled to objects in the set. At least one object is selected and the unique codes from the selected object are logically summed, as are the error codes from the selected objects. A test code is generated from the logically summed unique code and tested for equality with the logically summed error code to determine if more than one object was selected.