Index: Common.h
===================================================================
diff -u -r544e4f1f603efa3da3f03034179d8cdae1066477 -r404f66cb61ba4bd71ea5af97c9b3e6eef9fa6743
--- Common.h	(.../Common.h)	(revision 544e4f1f603efa3da3f03034179d8cdae1066477)
+++ Common.h	(.../Common.h)	(revision 404f66cb61ba4bd71ea5af97c9b3e6eef9fa6743)
@@ -85,6 +85,7 @@
 // **** Common Definitions ****
 
 #define NEARLY_ZERO                     0.00000001  ///< Value that is nearly zero.  Used for floating point zero comparisons (e.g. divide by zero checks).
+#define HEX_64_K                        0x10000     ///< 64K (65536 in decimal).
 #define MASK_OFF_MSB                    0x00FF      ///< Bits to mask off the most significant byte of a 2-byte word.
 #define MASK_OFF_LSB                    0xFF00      ///< Bits to mask off the least significant byte of a 2-byte word.
 #define MASK_OFF_MSW                    0x0000FFFF  ///< Bits to mask off the most significant 2-byte word of a 4-byte word.