This function provides font selection in text (alphanumeric) display modes. For font selection in graphics (all-points-addressable) modes, see Int 10H Function 11H Subfunctions 20H—24H.Loads the ROM BIOS default 8-by-14 font table into the specified block of character generator RAM.
Call with:
AH = 11H
AL = 01H or 11H (see Notes)
BL = block
Returns:
Nothing
Notes:
This function provides font selection in text (alphanumeric) display modes. For font selection in graphics (all-points-addressable) modes, see Int 10H Function 11H Subfunctions 20H—24H.
If AL = 11H, page 0 must be active. The points (bytes per character), rows, and length of the refresh buffer are recalculated. The controller is reprogrammed with the maximum scan line (points - 1), cursor start (points - 2), cursor end (points - 1), vertical display end ((rows*points) - 1), and underline location (points - 1, mode 7 only).
If Subfunction 11H is called at any time other than immediately after a mode set, the results are unpredictable.
Subfunctions 01H and 11H are reserved on the MCGA. If either is called, Subfunction 04H is executed.