61. Vector Min/Max Pair

How do you plan to solve it?

module minmax4_task (
    input  [7:0] v0,
    input  [7:0] v1,
    input  [7:0] v2,
    input  [7:0] v3,
    output reg [7:0] min_val,
    output reg [7:0] max_val
);
    // --------- Provided task (complete the TODOs) ----------
    // Returns both min and max among four 8-bit unsigned inputs.
    task minmax4;
        input  [7:0] a, b, c, d;
        output [7:0] min_o;
        output [7:0] max_o;

        reg [7:0] min01, max01;
        reg [7:0] min23, max23;
        begin
            // Pairwise compare (a,b)
            // TODO: set max01 as the larger of a and b
            if(a < b)  begin  
                min01 = a;
                max01 = b;
            end
            else  begin
                min01 = b;
                max01 = a;
            end

            // Pairwise compare (c,d)
            // TODO: set max23 as the larger of c and d
            // TODO: set min23 as the smaller of c and d
            if(c < d)  begin  
                min23 = c;
                max23 = d;
            end
            else  begin
                min23 = d;
                max23 = c;
            end
            // Final reduce across pairs
            // TODO: set max_o as the larger of max01 and max23
            // TODO: set min_o as the smaller of min01 and min23
            if(min01 < min23)  min_o = min01;
            else               min_o = min23;
            if(max01 > max23)  max_o = max01;
            else               max_o = max23;
        end
    endtask
    // -------------------------------------------------------

    // TODO: Call the task and assign outputs
    reg [7:0] tmin, tmax;
    always @(*) begin
        minmax4(v0,v1,v2,v3,tmin,tmax);
        min_val = tmin;
        max_val = tmax;
    end

endmodule