摘要 |
PURPOSE:To improve the overall processing performance of a system by interpreting instructions and performing the arithmetic processing at a processor part while a storage device is performing an environment saving process. CONSTITUTION:A storage device 11 contains a register group 15 having the same contents as those of a register group 14 of a processor part 12. In an environment saving process at the part 12 a writing process is possible to a storage part from the group 15 of the device 11 without transferring the data to the device 11 from the group 14 of the part 12. Therefore the part 12 is not required to perform the transfer of data for environment saving. Then the part 12 can interpret and calculate the desired instructions after saving the environment. This improves the processing performance at the part 12.
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