diff --git a/src/unity.c b/src/unity.c
index 14f8da5..1ede28d 100644
--- a/src/unity.c
+++ b/src/unity.c
@@ -28,12 +28,13 @@ const char* UnityStrPointless= " You Asked Me To Compare Nothing, Which Was Poin
 const char* UnityStrNullPointerForExpected= " Expected pointer to be NULL";
 const char* UnityStrNullPointerForActual  = " Actual pointer was NULL";
 
+// compiler-generic print formatting masks
 const _U_UINT UnitySizeMask[] = 
 {
-    255u,
+    255u,         // 0xFF
+    65535u,       // 0xFFFF
     65535u,
-    65535u,
-    4294967295u,
+    4294967295u,  // 0xFFFFFFFF
     4294967295u,
     4294967295u,
     4294967295u