Data processor that utilizes full data width when processing a string operation

摘要

A data processor which performs in parallel a comparison process of n (which is an integer 2 or more)-sets first size data a elements by logical add operation between data elements in executing a first instruction for processing simultaneously number of n first size data elements, and performs a comparison process of one-set second size data elements by logical product operation of the compared results of whole data elements in executing a second instruction for processing individually second size data elements whose size is n times of said first size.