case 0x9000:
VROM_BANK4(0x0000,map75ar[0]|((V&2)<<3));
VROM_BANK4(0x1000,map75ar[1]|((V&4)<<2));
map75sel=V;MIRROR_SET(V&1);break;
case 0x9000:
VROM_BANK4(0x0000,map75ar[0]|((V&2)<<3));
VROM_BANK4(0x1000,map75ar[1]|((V&4)<<2));
map75sel=V;MIRROR_SET(V&1);break;