Conditional

Given four unsigned numbers, find the minimum. Unsigned numbers can be compared with standard comparison operators (a < b). Use the conditional operator to make two-way min circuits, then compose a few of them to create a 4-way min circuit. You'll probably want some wire vectors for the intermediate results.

module top_module (
    input [7:0] a, b, c, d,
    output [7:0] min);//

    wire [7:0] num1, num2;
    
    assign num1 = (a > b) ? b: a;
    assign num2 = (num1 > c) ? c : num1;
    assign min = (num2 > d) ? d : num2;
endmodule