| 摘要 |
PURPOSE:To reduce a unit processing time by prefetching a part of the operation of a unit having a long processing time and executing it within a pipeline cycle having a margin of processing time. CONSTITUTION:The 1st and 2nd pipeline cycles 7 and 8 are set to execute data processing parts 9 and 10 in the cycle 7 and then data processing parts 11 and 12 in the cycle 8 respectively. The part 11 selects the output signal of the part 10 by means of a conditional signal line 13 and outputs the corresponding data. In the cycle 8 the data selected by the part 11 is executed by the part 12. In such a way, the pipeline cycle is reduced. |
