INT 10 - Chips & Technologies Extended 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 VERTICAL COMPENSATION
	AX = 5F5Ch
	BL = type of vertical compensation to use
	    00h no compensation
	    01h automatic centering
	    02h set centering register
		DX = centering value (bits 9-0 only)
	    03h non-automatic centering
	    04h set vertical line insertion register
		DL = vertical line insertion (bits 3-0 only)
	    05h set alternate maximum scanline register
		DL = alternate maximum scanline (bits 4-0 only)
	    06h enable text stretching, type 0
	    07h enable text stretching, type 1
	    08h enable text stretching, type 2
	    09h enable text stretching, type 3
	    0Ah	disable text stretching
	    0Bh set vertical line replication register
		DL = vertical line replication (bits 3-0 only)
	    0Ch enable graphics stretching, type 0
	    0Dh enable graphics stretching, type 1
	    0Eh disable vertical graphics stretching
	    0Fh disable all horizontal and vertical compensation
	    10h enable optimal compensation
	    11h disable optimal compensation
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
SeeAlso: AX=5F50h,AX=5F5Eh,AX=5F5Fh