What games hark code for cheats 5000 exp

The Gameshark code for Pokemon Leaf Green and Fire Red:
Master :
9820F6AE82032A2082A9A143 50C4AB43573D
5000EXP:FEBB0A6A8203087B9AD720EE
It seems to only work if the pokemon who initiates the battle, wins the battle. Also it doesn't seem to share the experience or even work at all at times when you switch pokemon in a battle. I used this code on the GBA emulator on the computer so I'm not sure what version of gameshark it is for or whatever.