module my_design_TOP(

//CLK Input

input clk,

//Push Button Inputs

input btnC,

input btnU,

input btnD,

input btnR,

input btnL,

// Slide Switch Inputs

input [15:0] sw,

// LED Outputs

output [15:0] led,

// Seven Segment Display Outputs

output [6:0] seg,

output [3:0] an,

output dp

);

// Your program

assign led[7] = sw[7] & sw[15];

assign led[6] = sw[6] & sw[14];

assign led[5] = sw[5] & sw[13];

assign led[4] = sw[4] & sw[12];

assign led[3] = sw[3] & sw[11];

assign led[2] = sw[2] & sw[10];

assign led[1] = sw[1] & sw[9];

assign led[0] = sw[0] & sw[8];

assign led[15] = btnU;

assign led[14] = btnL;

assign led[13] = btnC;

assign led[12] = btnR;

assign led[11] = btnD;

assign seg[6] = sw[6];

assign seg[5] = sw[5];

assign seg[4] = sw[4];

assign seg[3] = sw[3];

assign seg[2] = sw[2];

assign seg[1] = sw[1];

assign seg[0] = sw[0];

assign dp = sw[7];

assign an[3] = sw[11];

assign an[2] = sw[10];

assign an[1] = sw[9];

assign an[0] = sw[8];

endmodule

What does each bolded code line mean?