Thanks, otherwise for the Genesis there is the more than excellent Genesis Plus GX by Eke-Eke, latest version here : https://github.com/ekeeke/Genesis-Plus-GX/blob/a2380d84e0544a9dadf466492621e2c545594104/builds/genplus_wii.dol
To be honest, it has nothing to envy to Snes9x TX and FCEUX TX (on...