dolphin-emu/dolphin — pull request #1798 by FioraAeterna (2014-12-31 18:27:00+00:00)
Title: Support overclocking and underclocking the Gamecube CPU

Won't work with all games, but provides a nice way to spend extra CPU to make
a variable framerate game faster (e.g. Spyro or The Last Story), or to make
a game use less CPU at the cost of a lower framerate (e.g. Rogue Leader).