INT 10 U - VIDEO - HP 100LX/200LX - SET ZOOM MODE                               
	AH = D0h
	AL = zoom mode
	    02h 80x25 mono
	    03h 80x25 color
	    80h 64x18 mono
	    81h 64x18 color
	    82h 40x25 mono
	    83h 40x25 color
	    84h 40x16 mono
	    85h 40x16 color
Return: nothing
Note:	zoom mode can only be changed within zoom modes of the same color
	  scheme; if needed, set to mono/color with AH=00h,AL=02h/03h; with
	  mono video modes AL=07h or AL=21h only 80x25 and 40x16 will work
	the current zoom mode is stored in the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. data area at 0040h:009Fh
SeeAlso: AH=D1h,AH=D4h