INT 10 - Chips & Technologies Extended BIOS - 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