{TAIL ~ A memory} 1100 is used to store display data that are to be superposed on the display data that are read from {HEAD ~ the frame memory} 600 
{ TAIL ~ A memory } 1100 is used to store display data that are to be superposed on the display data that are read from { HEAD ~ the frame memory } 600
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH