Update and rename ripple_carry_adder.v to ripple_carry_adder_tb.v

memory/testbenches/ripple_carry_adder_tb.v

@@ -0,0 +1,35 @@
+module tb();
+
+  reg[5:0] X,Y; //reg X,Y,C_in are register to store information
+  reg C_in;
+  wire C_out ;
+  wire [5:0] S;  //wire is used to pass on information from c_out of one full adder to other full adder's C_in
+
+  ripple_adder dut(
+    .X(X),                       //preparing X,Y,C_in,C_out for test cases
+    .Y(Y),
+    .C_in(C_in),
+    .S(S),
+    .C_out(C_out)
+  );
+  initial begin
+    $dumpvars(1,tb);         //dumping variable to conduct simulation
+    #5;
+    X=0;
+    Y=0;
+    C_in=0;
+    #5;
+    X=4;
+    Y=5;
+    C_in=1;
+    #5
+    X=4'b1000;
+    Y=4'b0100;
+    #5
+    C_in=1;
+
+  end
+
+endmodule
+
+