A processing unit (100) with a processor (110) for processing an operation code and a method for processing the operation code in the processing unit (100). The processor (110) comprises an operation code control unit (200) for receiving and processing the operation code in a boolean circuit (230) and...http://www.google.com.hk/patents/US5752065?utm_source=gb-gplus-share專利 US5752065 - One cycle processor for real time processing