Energy Efficient Application Specific Banked Register Files
نویسندگان
چکیده
Register files account for a significant fraction of the power dissipation in modern RISC processors. Register file banking is an effective alternative to monolithic register files in embedded systems. We propose a profile-based technique to arrive at a customized energy-efficient bank configuration for a given application on a dual bank register file. The technique consists of a register renaming step take advantage of the bank structure of the register file by renaming the most frequently accessed registers to the smaller bank. Experimental results indicate that our approach gives energy savings of 40-50% on register files with customized bank configuration.
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