1 files changed, 15 insertions, 7 deletions
diff --git a/FIRFilter.v b/FIRFilter.v
index dada832..61c0ef8 100644
--- a/FIRFilter.v
+++ b/FIRFilter.v
@@ -27,16 +27,24 @@ module FIRFilter(
 
 reg [15:0] yout;
 
-reg [15:0] yold1;
-reg [15:0] yold2;
+reg [15:0] yold1=0;
+reg [15:0] yold2=0;
 
-always @(*) begin
-	yout = 20*yin + 15*yold1 + 10*yold2;
+always @(yin, yold1, yold2, rst) begin
+	if (rst)
+		yout = 0;
+	else
+		yout = 20*yin + 15*yold1 + 10*yold2;
 end
 
-always @(load) begin
-	yold2 = yold1;
-	yold1 = yin;
+always @(posedge load, posedge rst) begin
+	if (rst) begin
+		yold1 = 0;
+		yold2 = 0;
+	end else begin
+		yold2 = yold1;
+		yold1 = yin;
+	end
 end
 
 endmodule