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     This function provides font selection in text (alphanumeric)
     display mode. For font selection in graphics (all-points-
     addressable) modes, see Int 10h Function 11h Subfunctions 20h-24h.
 
     If AL = 14h, 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) for 350
     and 400 line modes or (rows * points * 2 - 1) for 200 line modes),
     and underline location (points - 1, mode 7 only).
 
     If Subfunction 14h is called at any time other than immediately
     after a mode set, the results are unpredictable.
 
     On the MCGA, a Subfunction 04h call should be followed by a
     Subfunction 03h call so that the ROM BIOS will load the font into
     the character generator's internal font pages.
 
     Subfunction 14h is reserved on the MCGA. If it is called,
     Subfunction 04h is executed.
 
     Subfunction 14h acts like Subfunction 04h, but it also adjusts
     character height according to the height of characters being
     loaded.
                                    -♦-