INT 10 - VIDEO - UltraVision - LOAD USER FONT (EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors.,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.)
	AX = CD10h
	BH = bytes per character (08h,0Ah,0Bh,0Eh,13h,14h)
	CX = ABCDh load 9xN alternate font (v2+)
	   else number of characters to load
		DX = character offset into font table
		DS:SI -> 8-byte ASCII font name
	ES:BP -> font definitions
Return: AX = FFFFh if invalid font parameters
Notes:	loads the designated characters into UltraVision's resident font area
	should be followed by a video mode set to reload character generator
SeeAlso: AX=1100h,AX=1103h