How to Set Up a Controller for DeSmuME? Xbox, PS4 & PC Guide
DeSmuME DS Zelda Mod [The Legend of Zelda: Phantom Hourglass] [Mods]
DeSmuME PS4 (DualShock 4) Controller Setup For Windows : r/EmulationOnPC
DeSmuME retroarch core works good for playing portrait mode. (64bit non playstore version) Just make sure you set your device to not be landscape only. I'm unsure of the compatibility for most
DeSmuME PS4 (DualShock 4) Controller Setup For Windows : r/Roms