公开(公告)号：US20190235873A1

公开(公告)日：2019-08-01

申请号：US16019502

申请日：2018-06-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： James David DUNDAS ,  Gerald David ZURASKI, Jr. ,  Karthik SUNDARAM

IPC: G06F9/38 ,  G06F9/30 ,  G06F12/0875

CPC classification number: G06F9/3806 ,  G06F9/30058 ,  G06F12/0875 ,  G06F2212/452

Abstract: According to one general aspect, an apparatus may include a front end logic section comprising a main-branch target buffer (BTB). The apparatus may also include a micro-BTB separate from the main BTB, and configured to produce prediction information associated with a branching instruction and mark prediction information as verified when one or more conditions are satisfied. Wherein the front end logic section is configured to be, at least partially, powered down when the data stored by the micro-BTB that results in the prediction information is marked as previously verified.