INT 33 - MS MOUSE - SET LARGE GRAPHICS CURSOR BLOCK
        AX = 0012h
        BH = cursor width in words
        CH = rows in cursor
        BL = horizontal hot spot (-16 to 16)
        CL = vertical hot spot (-16 to 16)
        ES:DX -> bit map of screen and cursor maps
Return: AX = FFFFh if successful
SeeAlso: AX=002Ah,AX=0035h