diff --git a/tdump.c b/tdump.c
index 805d388..7c85f61 100644
--- a/tdump.c
+++ b/tdump.c
@@ -1,6 +1,5 @@
 /* DUMP.C - Dumps stdin To stdout In Hexadecimal Format
-			Copyright (C) 1986, T.A. Daneliuk
-    $Id: tdump.c,v 1.102 2007/01/02 22:56:02 tundra Exp $
+			Copyright (C) 1986-2020, T.A. Daneliuk
 */
 
 #include	<stdio.h>
@@ -8,14 +7,23 @@
 #include	<ctype.h>
 #define		WIDTH	16
 
+/* Function declarations */
+
+void dl(void);
+int  prnascii(char *equiv);
+void tohex2(int x, char array[]);
+
+
+/* Program globals */
+
 static	char	lineno[]="000000";
 static 	unsigned long line=0;
 
-main()
+void main()
 
 {
 
-int	c,count;		  
+int	c,count;
 char	array[4],equiv[WIDTH+1];
 array[2]=' ';
 array[3]='\0';
@@ -47,7 +55,7 @@
 
 /************************ Display Current Line No. **************************/
 
-dl()
+void dl()
 
 {
 
@@ -83,11 +91,10 @@
 				The low 8 bits of the integer are converted to an
 				equivalent hexadecimal string which is stored in the
 				array at subscripts 0 and 1.
-
-	Last modified: 01/01/85 - Copyright (c) 1985 By T.A. Daneliuk		*/
+*/
 
 
-tohex2(i,array)
+void tohex2(i,array)
 
 int		i;
 char	array[];