XYODA@ECNCDC.BITNET.UUCP (02/21/87)
YES, THERE IS A VIDEO-SYNC BYTE THAT CAN BE LOOKED AT, THIS LOCATION CHANGES DURING THE VERTICAL BLANK, SO THAT GRAPHICS CAN BE DRAWN, I WILL FIND OUT THE LOCATION FOR YOU ON MONDAY. Jim Thomas.... ADDRESS: XYODA@ECNCDC.BITNET may the force be with you always.....