This MAGIC design layout, was implemented using the Design Architect schematic.  The three stages are visible, as well as the Muliplexers in each one.
        The dark blocks around the outside of the design are buffers which ensure a definitive '1' or '0'.  If buffers were not used, the circuit may not work correctly.  Also, note the purple squares around the parameter.  These are the "pads" which connect the pins on the package to the design itself.