What emulator should i use POkemon Ruby, Shapphire, and Emerald

as the title says please help me on this.... every time i open it with my current emulator it goes white screened..so im wondering if there is one that works... :P

Please read the common issues thread.

visual boy advance is a very good emulator for gba or gbc

If you have a PSP download gpSP and it has better compatibility than my gba flash cart