DATA SEARCH CONTROL SYSTEM

PURPOSE:To shorter the time required for data search and to improve efficiency for operating an information processor. CONSTITUTION:When an information processor 101 instructs a data search operation to a data searching device 102, it is judged whether a designated address exists in a range set in advance by an address detection circuit 110 or not and when it exists in the set range, a decoder 111 is driven. The decoder 111 decodes an input address signal, and when a relevant data search control part 103 exists, it is selected. Thus, when '1' is set to a specified value flag register, the specified value of a specified value generation circuit is read out as the result of data search and outputted onto a data bus 104. At such a time, since no search instructing signal 116 is outputted and no data search operation signal 109 is supplied, the search operation of the data searching device 102 is suppressed.