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In a seven-segment LED display, a square pattern can be created by enabling the a, b,...

In a seven-segment LED display, a square pattern can be created by enabling the a, b, f, and g segments or the c, d, e, and g segments. We want to design a circuit that circulates the square patterns in the four-digit seven-segment LED display. The circuit should have an input, en, which enables the circulation, and an input, cw, which specifies the direction (i.e., clockwise or counterclockwise) of the circulation. Write in verilog please.

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