电子科技大学学报2012，Vol.41Issue(2)：305-310,6.DOI:10.3969/j.issn.1001-0548.2012.02.025
改进的基于O-GEHL预测技术的EDGE块预测器
Improved Next-Block Predictor Based on O-GEHL for EDGE Architectures
苟鹏飞 1王诗博 1杨兵 1喻明艳1
作者信息
- 1. 哈尔滨工业大学微电子中心,哈尔滨150001
- 折叠
摘要
Abstract
Next-block predictors enable high efficiency control-flow speculation of EDGE architecture. This paper analyzes defects of next-block predictor based on O-GEHL prediction technology, and proposes two improvements: the exit prediction without chooser and the exit prediction with binary O-GEHL prediction. Performance evaluation results show that: the one without chooser in the exit prediction stage outperforms previously published one by 0.7%; the one using 8 conditional O-GEHL predictor improves the performance by 3% with the largest resource; the one using 4 conditional O-GEHL predictor only for the first 4 exits improves the performance by 2%.关键词
块预测器/分支预测器/EDGE体系结构/出口预测/O-GEHL预测技术/性能评估Key words
block predictor, branch predictor/ EDGE architecture/ exit Prediction/ O-GEHL predictor, performance evaluation分类
信息技术与安全科学引用本文复制引用
苟鹏飞,王诗博,杨兵,喻明艳..改进的基于O-GEHL预测技术的EDGE块预测器[J].电子科技大学学报,2012,41(2):305-310,6.
