| 摘要 |
A data processing system of this invention includes at least one special purpose data processing unit having a data path portion for executing specific data process by a special purpose instruction and a general purpose data processing unit for executing processes by general purpose instructions. The data path portion of the special purpose data processing unit includes a plurality of registers, a processing part for performing an operation related to data stored in the registers and a register control part for selecting and performing input and/or output of data with respect to the registers from the general purpose data processing unit. Thus, function unit in a program, such as loop sentence can be compressed into one instruction and any conditions referred in the function unit can be flexibly set and changed.
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