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diff --git a/verilog/test_alu.v b/verilog/test_alu.v
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+`timescale 1ns / 1ps
+
+////////////////////////////////////////////////////////////////////////////////
+// Company: 
+// Engineer:
+//
+// Create Date:   23:34:01 10/04/2012
+// Design Name:   toplevel
+// Module Name:   /ad/eng/users/m/g/mgabed/Documents/ec413/mgabed-lab4/test_alu.v
+// Project Name:  mgabed-lab4
+// Target Device:  
+// Tool versions:  
+// Description: 
+//
+// Verilog Test Fixture created by ISE for module: toplevel
+//
+// Dependencies:
+// 
+// Revision:
+// Revision 0.01 - File Created
+// Additional Comments:
+// 
+////////////////////////////////////////////////////////////////////////////////
+
+module test_alu;
+
+	// Inputs
+	reg [31:0] r2;
+	reg [31:0] r3;
+	reg [2:0] aluop;
+	reg reset;
+	reg clk;
+
+	// Outputs
+	wire [31:0] r1;
+
+	// Instantiate the Unit Under Test (UUT)
+	toplevel uut (
+		.r1(r1), 
+		.r2(r2), 
+		.r3(r3), 
+		.aluop(aluop), 
+		.reset(reset), 
+		.clk(clk)
+	);
+
+	initial begin
+		// Initialize Inputs
+		r2 = 0;
+		r3 = 0;
+		aluop = 0;
+		reset = 0;
+		clk = 1;
+
+		// Wait 100 ns for global reset to finish
+		#100;
+	
+		// Add stimulus here
+		fork
+		begin
+			// test MOV
+			aluop = 3'b0;
+			r2 = 391; #2;
+			r2 = 81283; #2;
+			r3 = 3281; r2 = 1; #2;
+			r2 = 0; #2;
+			#20;
+			
+			// test NOT
+			aluop = 3'b1;
+			r2 = 391; #2;
+			r2 = 81835; #2;
+			r2 = 32'b110101011; #2;
+			#20;
+			
+			// test ADD
+			aluop = 3'b010;
+			r2 = 20; r3 = 50; #2;
+			r2 = -18; r3 = 188; #2;
+			r2 = 0; r3 = 818; #2;
+			r2 = 8184803; r3 =818501028; #2;
+			#20;
+			
+			// test SUB
+			aluop = 3'b011;
+			r2 = 180; r3 = 170; #2;
+			r2 = 50; r3 = 90; #2;
+			r2 = -50; r3 = -150; #2;
+			#20;
+			
+			// test OR
+			aluop = 3'b100;
+			r2 = 32'b01101001; r3 = 32'b10010110; #2;
+			r2 = 18581; r3 = 18204; #2;
+			#20;
+			
+			// test AND
+			aluop = 3'b101;
+			r2 = 32'b10101010; r3 = 23'b11001100; #2;
+			r2 = 8101; r2 = 192189258; #2;
+			#20;
+			
+			// test XOR
+			aluop = 3'b110;
+			r2 = 32'b11110011; r3 = 32'b11000011; #2;
+			r2 = 182381052; r3 = 19285; #2;
+			#20;
+			
+			// test SLT
+			aluop = 3'b111;
+			r2 = 500; r3 = 40; #2;
+			r2 = -5; r3 = 100; #2;
+			r2 = 1; r3 = 5; #2;
+			r2 = 32'hfffffff0; r3 = 189; #2;
+			r2 = 0; r3 = 0; #2;
+			r2 = 32'hf0000000; r3 = 32'hf0000001; #2;
+			r2 = 32'h7fffffff; r3 = 32'h80000000; #2;
+
+			#20;
+		end
+		
+		while (1) begin
+			clk = ~clk; #1;
+		end
+		join
+	end
+      
+endmodule
+