Int 10h, 1121h          Load User Graphics Font                EGA, MCGA, VGA

    Loads user-defined character font in graphics mode.

        Entry   AX    = 1121h
                BL    = Number of rows
                        | 00h - DL contains number of rows
                        | 01h - 14 (0Eh) rows
                        | 02h - 25 (19h) rows
                        | 03h - 43 (2Bh) rows
                CX    = Bytes per character
                ES:BP = Pointer to user graphics table for
                        graphics characters 00h..0FFh

        Return  Nothing