If you use snes---***---turbo
add the following line to the zemufeex_smc.sh file:
export S9KEYS=27,100,99,115,120,97,122,13,32,103,106,117,110,121,98,105,109
after export SDL_QT_INVERTROTATION=1 line
It changes the "A" key on your Zaurus keyboard to both the "L" and "R".