PROCESSING UNIT, INFORMATION PROCESSING DEVICE AND METHOD OF CONTROLLING PROCESSING UNIT

摘要

An expansion request is stored in a request storage unit (110) of a prefetch port (100), and a prefetch port entry selection unit (140) performs control such that the two prefetch requests expanded from the expansion request are inputted to an L2-Pipe (23) consecutively. Furthermore, the prefetch port entry selection unit (140) performs control such that when only one of the two expanded prefetch requests is aborted, the aborted prefetch request is inputted with highest priority to the L2-Pipe (23). Also, the prefetch port entry selection unit (140) receives the number of usable resources from a resource management unit (301) and selects the prefetch requests to be input to a pipe input unit (200), on the basis of the number of usable resources.