| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a means performing simultaneously addition of plural entry and erasure processing for an associative memory with a mask. SOLUTION: In a state in which one bit of entry in an associative memory 3 with a mask is utilized as a work bit 70, a work bit mask 72, a work bit 70 of addition object entry is set to '1' and a work bit mask 72 is set to '1', a work bit 70 of erasure object entry is set to '0' and a work bit mask 72 is set to '1', addition object entry is changed to retrieving object simultaneously by changing a value of a retrieving object from '0' to '1', retrieving object entry is changed to out of retrieving object. After that, a work bit 70 of addition object entry is set to '0', and a work bit mask 72 is set to '0', after erasure object entry is erased, a value of a retrieving work bit 50 is returned to '0'.</p> |
