0.78u1: Changed visible area to 318x240 and changed region sound2 to sound1.
30th December 2003: Quench fixed the OKIM6295 sound chip banking in Diver Boy, fixed the sprites from being clipped at the right side of the screen
and the horizontal resolution
Ported from 2003-plus, committed by arcadez.
0.78u1: Changed visible area to 318x240 and changed region sound2 to sound1. 30th December 2003: Quench fixed the OKIM6295 sound chip banking in Diver Boy, fixed the sprites from being clipped at the right side of the screen and the horizontal resolution