Houman Homayoun Sudeep Pasricha Mohammad A. Makhzan Alexander V. Veidenbaum Dynamic register file resizing and frequency scaling to improve embedded processor performance and energy-delay efficiency. 68-71 2008 DAC http://doi.acm.org/10.1145/1391469.1391488 conf/dac/2008 db/conf/dac/dac2008.html#HomayounPMV08