GFFB_PCIO1
GFFB_WRITE_1(GFFB_PCIO1 + 0x3d4, reg);
GFFB_WRITE_1(GFFB_PCIO1 + 0x3d5, val);
return GFFB_READ_1(GFFB_PCIO1 + 0x3d5);