| 摘要 |
<p>An instruction execution controller for operating a plurality of threads in a simultaneous multithread system has a thread select circuit (30) for, during the operation in the simultaneous multithread, detecting the state in which an instruction has not been completed for a certain period time and controlling so that all reservation stations (5, 6, 7) can execute only a set thread. If there is the state of the entry of a thread that the reservation stations (5, 6, 7) cannot execute, the state of the entry of the unexecutable thread can be brought into an executable state by stopping a thread having long been executed.</p> |
