A data processing device has an instruction decoder (1), a control logic unit (3), and ALU (4). The instruction decoder (1) decodes instruction codes of an arithmetic instruction. The control logic unit (3) detects the effective data width of operation data to be processed according to the decode result...http://www.google.fr/patents/US7337302?utm_source=gb-gplus-shareBrevet US7337302 - Data processing device
