Recap - Simple Math

Part of the Fundamentals section of Coddy's Verilog journey — lesson 22 of 90.

Challenge

Complete the code by writing the correct arithmetic and comparison expressions.

What to do:

Calculate a + b and store in add
Calculate a - b and store in sub
Calculate a * b and store in mul
Calculate a / b and store in div
Calculate a % b and store in mod
Check if a is greater than b and store in gt
Check if a equals b and store in eq

Try it yourself

module simple_math_challenge;
  reg [3:0] a, b;
  reg [7:0] add, sub, mul, div, mod;
  reg gt, eq;
  
  initial begin
    a = 4'd13;
    b = 4'd4;
    
    add = ______;   // a + b
    sub = ______;   // a - b
    mul = ______;   // a * b
    div = ______;   // a / b
    mod = ______;   // a % b
    gt  = ______;   // a > b
    eq  = ______;   // a == b
    
    $display("13 + 4 = %d", add);
    $display("13 - 4 = %d", sub);
    $display("13 * 4 = %d", mul);
    $display("13 / 4 = %d", div);
    $display("13 %% 4 = %d", mod);
    $display("13 > 4  = %d", gt);
    $display("13 == 4 = %d", eq);
    $finish;
  end
endmodule