🎨 Formatted Code (#4)

Binary2BCD.v

@@ -1,26 +1,80 @@
 
-module  CondAdd3(input[3:0]in,output[3:0]out);
-
-    assign out = in >= 5 ? in + 3 : in;
+module CondAdd3(in, out);
+    input [3:0] in;
+    output [3:0] out;
 
+    assign out = in >= 5 ? in + 3:in;
 endmodule
 
-
-
-module Binary2BCD(in , out);
+module Binary2BCD(in, out);
     input [7:0] in;
     output [11:0] out;
-    wire [28 : 1] temp;
+    wire [28:1] temp;
+
+    CondAdd3 c1({0,in[7:5]}, temp[4:1]);
+    CondAdd3 c2({temp[3:1], in[4]}, temp[8:5]);
+    CondAdd3 c3({temp[7:5], in[3]}, temp[12:9]);
+    CondAdd3 c4({temp[11:9], in[2]}, temp[16:13]);
+    CondAdd3 c5({temp[15:13], in[1]}, temp[20:17]);
+    CondAdd3 c6({0, temp[4], temp[8], temp[12]}, temp[24:21]);
+    CondAdd3 c7({temp[23:21], temp[16]}, temp[28:25]);
+
+    assign out = {0, 0, temp[24], temp[28:25], temp[20:17], in[0]};
+endmodule
 
-    CondAdd3 c1( {0,in[7:5]}, temp[4 : 1]  );
-    CondAdd3 c2( {temp[3:1] , in[4]}, temp[8 : 5]  );
-    CondAdd3 c3( {temp[7:5] , in[3]}, temp[12 : 9]  );
-    CondAdd3 c4( {temp[11:9] , in[2]}, temp[16 : 13]  );
-    CondAdd3 c5( {temp[15:13] , in[1]}, temp[20 : 17]  );
-    CondAdd3 c6( {0 , temp[4] , temp[8] , temp[12] }, temp[24 : 21]  );
-    CondAdd3 c7( {temp[23:21] , temp[16] }, temp[28 : 25]  );
+module Binary2BCD_DUT();
+    reg [7:0] in;
+    wire [11:0] out;
 
-    assign out = { 0 , 0 , temp[24] , temp[28:25] , temp[20:17] , in[0]};
+    Binary2BCD b2b(in, out);
 
+    initial begin
+        in = 1;
+        #10;
+        in = 112;  
+        #10;
+        in = 251;
+        #10;
+        in = 0;
+        #10;
+        in = 156;
+        #10;
+        in = 045;
+        #10;
+        in = 255;
+        #10;
+        in = 100;
+        #10;
+        in = 124;
+        #10;
+        in = 235;
+        #10;
+        in = 050;
+    end
 
+    initial begin
+        $display("Binary2BCD_DUT");
+        $display("==================================");
+        $monitor("Expected: 000000000001, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000011100, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000010010011, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000000000, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000010110, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000010101, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000111111, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000011001, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000011100, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000111011, Actual: %h\n",out);
+        #10;
+        $monitor("Expected: 000000010010, Actual: %h\n",out);
+    end
 endmodule

DisplayDecoder.v

@@ -1,6 +1,10 @@
-module DisplayDecoder(in,display7);
-	input [3:0]in;
-  	output [6:0]display7;
+module DisplayDecoder(in, out);
+	input [3:0] in;
+    output [6:0] out;
+
+    reg [6:0] display7;
+
+    assign out = display7;
 
 	always @(in)
 		case(in)
@@ -16,5 +20,4 @@ module DisplayDecoder(in,display7);
             9 : display7 = 7'b0000100;
             default : display7 = 7'b1111111; 
         endcase
-
 endmodule

InvMixColumns.v

@@ -1,9 +1,9 @@
-module InvMixColumns (stateIn,stateOut);
-	input[127:0] stateIn;
-	output[127:0] stateOut;
+module InvMixColumns(stateIn, stateOut);
+	input [127:0] stateIn;
+	output [127:0] stateOut;
 
-	//mul2 function that multiply x by 2^n and fixes the overflow
-	function [7:0] mul2(input [7:0]in,input integer n);
+	// Function to multiply by 2 and fix the overflow
+	function [7:0] mul2(input [7:0] in, input integer n);
 		integer i;
 		begin
 			for(i = 0; i < n; i = i + 1)begin
@@ -14,28 +14,28 @@ module InvMixColumns (stateIn,stateOut);
 		end
 	endfunction
 
-	function [7:0] mb0e; //Multiply by 0e
+	function [7:0] mb0e; // Multiply by 0e
 	input [7:0] x;
 	begin
 		mb0e = mul2(x,3) ^ mul2(x,2)^ mul2(x,1);
 	end
 	endfunction
 
-	function [7:0] mb0d; //Multiply by 0d
+	function [7:0] mb0d; // Multiply by 0d
 	input [7:0] x;
 	begin
 		mb0d = mul2(x,3) ^ mul2(x,2) ^ x;
 	end
 	endfunction
 
-	function [7:0] mb0b;  //Multiply by 0b
+	function [7:0] mb0b;  // Multiply by 0b
 	input [7:0] x;
 	begin
 		mb0b = mul2(x,3) ^ mul2(x,1) ^ x;
 	end
 	endfunction
 
-	function [7:0] mb09; //Multiply by 09
+	function [7:0] mb09; // Multiply by 09
 	input [7:0] x;
 	begin
 		mb09 = mul2(x,3) ^  x;
@@ -44,7 +44,7 @@ module InvMixColumns (stateIn,stateOut);
 
 	genvar i;
 	generate
-		for(i = 0; i < 4; i = i + 1)begin: InvMixColumnsLoop
+		for(i = 0; i < 4; i = i + 1) begin: InvMixColumnsLoop
 			//state[0,c] = 0e*state[0,c] + 0b*state[1,c] + 0d*state[2,c] + 09*state[3,c]
 			assign stateOut[32*i+24+:8] =  mb0e(stateIn[32*i+24+:8]) ^ mb0b(stateIn[32*i+16+:8]) ^ mb0d(stateIn[32*i+8 +:8]) ^ mb09(stateIn[32*i   +:8]);
 
@@ -58,6 +58,29 @@ module InvMixColumns (stateIn,stateOut);
 			assign stateOut[32*i   +:8] =  mb0e(stateIn[32*i   +:8]) ^ mb0b(stateIn[32*i+24+:8]) ^ mb0d(stateIn[32*i+16+:8]) ^ mb09(stateIn[32*i+8 +:8]);
 		end
 	endgenerate
+endmodule
 
+module InvMixColumns_DUT();
+	reg [127:0] stateIn;
+	wire [127:0] stateOut;
 
-endmodule
+	InvMixColumns imc(stateIn, stateOut);
+
+	initial begin
+		stateIn = 128'hbd6e7c3df2b5779e0b61216e8b10b689;
+		#10
+		stateIn = 128'hfde3bad205e5d0d73547964ef1fe37f1;
+		#10
+		stateIn = 128'hd1876c0f79c4300ab45594add66ff41f;
+	end
+
+	initial begin
+		$display("InvMixColumns_DUT");
+		$display("==================================");
+		$monitor("Expected: 4773b91ff72f354361cb018ea1e6cf2c, Actual: %h\n", stateOut);
+		#10
+		$monitor("Expected: 2d7e86a339d9393ee6570a1101904e16, Actual: %h\n", stateOut);
+		#10
+		$monitor("Expected: 39daee38f4f1a82aaf432410c36d45b9, Actual: %h\n", stateOut);
+	end
+endmodule