defines ASCII characters 128-255 (80H-ffH) that will be used to display
The oldest CGA video systems do not provide definitions for these
characters. On these systems, characters 128-255 (when in graphics modes)
are displayed as random dots unless you install your own table at the
Notes: On CGAs, text-mode font data is inaccessible.
EGA/VGA systems provide access to all font data. They
automatically set INT 1fH to point to a table in ROM.
these character to be eight dots high (eight bytes per character).
See Also: INT 43H (EGA/VGA Graphics Character Font Pointer)