libretro/mednafen-libretro — pull request #52 by Awakened0 (2014-06-04 08:03:52+00:00)
Title: Partial Fix for Core Volume Settings

Fixes CDDA and ADPCM options being swapped and volume number increase being opposite what you expect. That solves two parts of https://github.com/libretro/mednafen-libretro/issues/23, but getting the CDPSG volume setting working is beyond my capability.