INT 10H 1120H: Setup INT 1fH Vector
Compatibility: EGA VGA
Expects: AX 1120H
ES:BP address of 8x8 font-definition info for > chars 128
Info: This just saves ES:BP into the vector for INT 1fH; that is it
defines how the BIOS will display characters from 80H-ffH when in
CGA-graphics mode (200 vertical res).
ES:BP points to a table containing the character-definition codes. It
should be 2048 bytes long.
See Video Font Definition for byte layout.
Note: This fn requires that you modify BP. When calling from high-
level languages such as C, be very careful to save and restore
BP, since it is used to keep track of the "stack frame".
See Also: INT 10H 11H: EGA/VGA Character Generator Functions
INT 10H: Video Services
EGA/VGA Data Areas