From 3a2b6ebf9370a629a3aa408164f697d2f9517cc7 Mon Sep 17 00:00:00 2001
From: CongHong <48422836+CongHong@users.noreply.github.com>
Date: Fri, 2 Aug 2019 13:44:15 +0800
Subject: [PATCH] 1

---
 .../example_2/example_2.srcs/sources_1/new/stop_watch.v  | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Chapter_4/example_2/example_2.srcs/sources_1/new/stop_watch.v b/Chapter_4/example_2/example_2.srcs/sources_1/new/stop_watch.v
index 8607b9f..c432384 100644
--- a/Chapter_4/example_2/example_2.srcs/sources_1/new/stop_watch.v
+++ b/Chapter_4/example_2/example_2.srcs/sources_1/new/stop_watch.v
@@ -34,16 +34,19 @@ module stop_watch
         begin
            if (clr==0)
            begin
-              ms_reg <=23'b0;
+            ms_reg <=23'b0;
             d2_reg <= 4'b0;
-	          d1_reg <= 4'b0;
+	        d1_reg <= 4'b0;
             d0_reg <= 4'b0;
+			d2_next <= 4'b0;
+			d1_next <= 4'b0;
+			d0_next <= 4'b0;
            end
            else if (go == 1)
                 begin 
                   d2_reg <= d2_next;
 	              d1_reg <= d1_next;
-d0_reg <= d0_next;
+                  d0_reg <= d0_next;
                   if (ms_reg < COUNT_VALUE) 
                      ms_reg <= ms_reg + 1;
                   else