A microprocessor with an improved register part is disclosed. The register part includes a plurality of registers for holding data and adding circuits connected to the outputs of predetermined two registers. Adding circuits are provided as a preceding operation circuit and a part of the operation to...http://www.google.com.hk/patents/US5204962?utm_source=gb-gplus-share專利 US5204962 - Processor with preceding operation circuit connected to output of data register
