Data processor having resources and execution start control for starting execution of succeeding instruction in resource before completion of preceding instruction

摘要

A data processor having memory requesters to execute instructions, an instruction hold unit disposed for each resource to hold an instruction being executed in the resource and instructions to be executed therein, and execution control units to cause, in a case where an execution completion report of an instruction being executed in either one of the resources is received, an instruction held in an instruction hold unit corresponding to the resource to be immediately executed, thereby successively supplying the respective resources with data items to be employed for executions of the consecutive instructions in the resources.