Index: Utilities.c
===================================================================
diff -u -r2932935752882cd7bc9808bfe238b03753d3e167 -r810dd01b8fa7d5864adea6aaf13c43c61f2c889b
--- Utilities.c	(.../Utilities.c)	(revision 2932935752882cd7bc9808bfe238b03753d3e167)
+++ Utilities.c	(.../Utilities.c)	(revision 810dd01b8fa7d5864adea6aaf13c43c61f2c889b)
@@ -160,22 +160,41 @@
  *************************************************************************/
 U32 u32DiffWithWrap( U32 start, U32 end )
 {
-    U32 result;
+    U32 result = ( end >= start ? end - start : ( HEX_32_BIT_FULL_SCALE - start ) + end + 1 );
 
-    // no wrap
-    if ( end >= start )
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The u16BiDiffWithWrap function calculates the difference between two given
+ * unsigned 16-bit numbers.  This version of function returns a signed value
+ * to allow for a negative difference.
+ * @details Inputs: none
+ * @details Outputs: none
+ * @param start first number to compute difference for
+ * @param end second number to compute difference for
+ * @return the difference between the two given numbers
+ *************************************************************************/
+S32 u32BiDiffWithWrap( U32 start, U32 end )
+{
+    S32 result;
+
+    U32 incDelta = ( end >= start ? end - start : ( HEX_32_BIT_FULL_SCALE - start ) + end + 1 );
+    U32 decDelta = HEX_32_BIT_FULL_SCALE - incDelta + 1;
+
+    if ( incDelta < decDelta )
     {
-        result = end - start;
+        result = (S32)incDelta;
     }
-    // wrapped
     else
     {
-        result = ( 0xFFFFFFFF - start ) + end + 1;
+        result = (S32)decDelta * -1;
     }
 
     return result;
-}
-
+}
+
 /*********************************************************************//**
  * @brief
  * The u16DiffWithWrap function calculates the difference between two given