Int 10H [EGA] [MCGA] [VGA] Function 11H (17) Subfunction 21H (33) Set Int 43H for user's font

Sets the vector for Int 43H to point to the user's font table and updates the video ROM BIOS data area. The video controller is not reprogrammed.

Call with:

AH = 11H

AL = 21H

BL = character rows specifier

00H if user specified (see register DL)

01H = 14 (0EH) rows

02H = 25 (19H) rows

03H = 43 (2BH) rows

CX = points (bytes per character)

DL = character rows per screen (if BL = 00H)

ES:BP = segment:offset of user font table

Returns:

Nothing

Notes:

This function provides font selection in graphics (all-points-addressable) display modes. For font selection in text (alphanumeric) modes, see Int 10H Function 11H Subfunctions 00H—14H.

If this subfunction is called at any time other than immediately after a mode set, the results are unpredictable.