BRANCH PREDICTION DEVICE, HYBRID BRANCH PREDICTION DEVICE, PROCESSOR, BRANCH PREDICTION METHOD, AND BRANCH PREDICTION CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a branch prediction device for preventing the deterioration of branching prediction precision and the delay of a processing speed.;SOLUTION: A branch prediction device (1) includes: a branch prediction information accumulation processing means (6) for storing branch prediction groups acquired by grouping branch prediction information, and for accumulating the branch prediction information; and a pipe line access control means (2) for performing processing including first selective control processing for selectively controlling at least one branch prediction group from among the branch prediction groups and second selective control processing for selectively controlling one or more pieces of branch prediction information from among the branch prediction groups based on the request by pipe line processing, and for controlling access to the branch prediction information accumulation processing means (6).;COPYRIGHT: (C)2009,JPO&INPIT