INT 10 - Cirrus Logic 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. - SET MONITOR TYPE
	AH = 12h
	BL = A4h
	AL = options 1
	    bits 7-4 = vertical refresh at 640x480
		(0 = 60Hz, 1 = 72Hz, other reserved)
	    bits 3-0 = maximum vertical resolution
		(0 = 480 scanlines, 1 = 600, 2 = 768, 3 = 1024, other reserved)
	BH = options 2
	    bits 7-4 = vertical refresh at 1024x768
		(0=87Hz-int, 1=60Hz, 2=70Hz, 3=72Hz, 4=76Hz, other reserved)
	    bits 3-0 = vertical refresh at 800x600
		(0 = 56Hz, 1 = 60Hz, 2 = 72Hz, other reserved)
	CH = options 3
	    bits 7-4 = vertical refresh at 1280x1024
		(0=87Hz-int, 1=60Hz, 2=70Hz, other reserved)
	    bits 3-0: reserved
	CL,DX reserved
Return: nothing
SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A3h