OVERFLOW
ISACRTCW(OVERFLOW,
temp = (ISACRTCR(OVERFLOW) & ~0x52);
ISACRTCW(OVERFLOW,
CRTCW(OVERFLOW,
CRTC2W(OVERFLOW,
CRTCW(OVERFLOW,
CRTC2W(OVERFLOW,
CRTCW(OVERFLOW,
CRTC2W(OVERFLOW,