Consider the circuit shown in Figure 7. It uses a two-bit wide 4-to-1 multiplexer to enable the selection of four characters that are displayed on a 7-segment display. Using the 7-segment decoder from Part IV this circuit can display the characters d, E, 0, 1, 2, or blank depending on your DE-series board. The character codes are set according to Table 2 by using the switches SW7?0, and a speci?c character is selected for display by setting the switches SW9?8. An outline of the Verilog code that represents this circuit is provided in Figure 8. Note that we have used the circuitsfrom PartsIIIand IV as subcircuits inthis code. You aretoextendthecodein Figure 8 sothatitusesfour 7-segmentdisplaysratherthanjustone. Youwillneedtousefourinstancesofeachofthesubcircuits. Thepurpose ofyourcircuitistodisplayanywordonthefour7-segmentdisplaysthatiscomposedofthecharactersinTable2, and be able to rotate this word in a circular fashion across the displays when the switches SW9?8 are toggled. As an example, if the displayed word is dE10, then your circuit should produce the output patterns illustrated in Table 3