--- hatari/src/includes/utils.h	2019/04/09 08:47:18	1.1.1.2
+++ hatari/src/includes/utils.h	2019/04/09 08:53:17	1.1.1.4
@@ -1,8 +1,8 @@
 /*
   Hatari - utils.h
   
-  This file is distributed under the GNU Public License, version 2 or at
-  your option any later version. Read the file gpl.txt for details.
+  This file is distributed under the GNU General Public License, version 2
+  or at your option any later version. Read the file gpl.txt for details.
 */
 #ifndef HATARI_UTILS_H
 #define HATARI_UTILS_H
@@ -10,10 +10,15 @@
 #include <SDL_types.h>
 
 
-#define CRC32_POLY      0x04c11db7      /* IEEE 802.3 recommandation */
+#define CRC32_POLY	0x04c11db7	/* IEEE 802.3 recommandation */
 
 extern void    crc32_reset ( Uint32 *crc );
 extern void    crc32_add_byte ( Uint32 *crc , Uint8 c );
 
+#define CRC16_POLY	0x1021		/* CCITT */
+
+extern void    crc16_reset ( Uint16 *crc );
+extern void    crc16_add_byte ( Uint16 *crc , Uint8 c );
+
 
 #endif		/* HATARI_UTILS_H */