DATA PROCESSING SYSTEM FOR SINGLE AND DOUBLE PRECISION NUMERIC OPERATION

摘要

A data processing system includes a single-precision operation unit (156), a double-precision operation unit (152), a single-precision data to double-precision data conversion unit (154), and a double-precision data to single-precision data conversion unit (155). When two single-precision operations are simultaneously carried out, the single-precision operation unit performs a single-precision operation upon a group of single-precision data (SX1, SY1), and the double-precision operation unit with the single-precision data to double-precision data conversion unit and the double-precision data to single-precision data conversion unit perform a single-precision operation upon the other group of single-precision data (SX2, SY2). When a double-precision operation is carried out, the double-precision operation unit performs a double-precision operation upon a group of double-precision data (WX, WY). IMAGE IMAGE