Compatibility: EGA VGA
Expects: AX    1100H
BL    font block to load (EGA: 0-3; VGA: 0-7)
Returns: (none)
Info: Redefines the characters on EGA/VGA cards to use the 14-scanline-
high text-mode font.

This is the normal setting for 25-line mode EGAs (25*14=350, the
height of the EGA display).  On VGAs, this makes it possible to
display in a 28-line mode (14*28=392, of a 400-high screen).

This fn does not program the CRTC or set BIOS variables to make
allowances for changes in character height, etc.  Use
INT 10H 1111H to have the BIOS do that automatically.

BL specifies which of the up-to eight tables in EGA/VGA character-
definition RAM should be affected.  See INT 10H 1103H (activate
font block).  Normally, you will use BL=0, since block 0 is
normally the active font block.

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INT 10H 1101H: Load ROM 8x14 Character Set