A Power-Aware Branch Predictor by Accessing the BTB Selectively

@article{Kim2005APB,
  title={A Power-Aware Branch Predictor by Accessing the BTB Selectively},
  author={Cheol Kim and Sung Chung and Chu Shik Jhon},
  journal={Journal of Computer Science and Technology},
  year={2005},
  volume={20},
  pages={607-614}
}
Microarchitects should consider power consumption, together with accuracy, when designing a branch predictor, especially in embedded processors. This paper proposes a power-aware branch predictor, which is based on the gshare predictor, by accessing the BTB (Branch Target Buffer) selectively. To enable the selective access to the BTB, the PHT (Pattern History Table) in the proposed branch predictor is accessed one cycle earlier than the traditional PHT if the program is executed sequentially… CONTINUE READING

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