INT 62 u - FGDRIVER v4.02 - "FG_MOUSELIM" - SPECIFY MOUSE CURSOR LIMITS
	AX = 0078h
	BX = left-most position allowed for mouse cursor
	CX = right-most position allowed
	DX = top-most position allowed
	SI = bottom-most position allowed
Note:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
SeeAlso: AX=0077h,AX=0079h,INT 33/AX=0007h,INT 33/AX=0008h