INT 62 u - FGDRIVER v4.02 - "FG_MOUSE256" - DEFINE 256-COLOR MOUSE CURSOR
	AX = 0073h
	ES:BX -> 512-byte cursor definition
	CX = X offset of hot-spot within mouse cursor
	DX = Y offset of hot-spot within mouse cursor
Return: nothing
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	the cursor definition array consists of 256 bytes defining the 16x16
	  screen mask, followed by another 256 bytes definining the 16x16
	  cursor mask
SeeAlso: AX=0074h,AX=0075h,AX=007Bh