INT 33 - MS MOUSE v3.0+ - DEFINE GRAPHICS CURSOR

	AX = 0009h
	BX = column of cursor hot spot in bitmap (-16 to 16)
	CX = row of cursor hot spot (-16 to 16)
	ES:DX -> mask bitmap (see #03170)
Notes:	in graphics modes, the screen contents around the current mouse cursor
	  position are ANDed with the screen mask and then XORed with the
	  cursor mask
	the Microsoft mouse driver v7.04 and v8.20 uses only BL and CL, so the
	  hot spot row/column should be limited to -128..127
	Microsoft KnowledgeBase article Q19850 states that the high bit is
	  right-most, but that statement is contradicted by all other available
	  documentation
SeeAlso: AX=000Ah,AX=0012h,AX=002Ah,INT 62/AX=007Fh,INT 6F/AH=0Ah"F_DEF_MASKS"