R128_CRTC_DISPLAY_DIS
if( (tmp & R128_CRTC_DISPLAY_DIS) == 0 )
int mask = (R128_CRTC_DISPLAY_DIS
R128_CRTC_DISPLAY_DIS | R128_CRTC_HSYNC_DIS, mask);
R128_CRTC_DISPLAY_DIS | R128_CRTC_VSYNC_DIS, mask);