Answer by
balaji7hills (35)
1. you always use mednafen for GBA, works much better than Visual Boy Advance in Linux. Save states are simple (F5 save, F7 load, number key to select state)
2. In visualboy advance, you can save stat with shift+F1-F9 ( that means you can have up to i save states), and you can load them with F1-F9