1 files changed, 7 insertions, 1 deletions
diff --git a/MdePkg/Include/Ipf/ProcessorBind.h b/MdePkg/Include/Ipf/ProcessorBind.h
index 7137c278b6..a40ecd71e5 100644
--- a/MdePkg/Include/Ipf/ProcessorBind.h
+++ b/MdePkg/Include/Ipf/ProcessorBind.h
@@ -1,7 +1,7 @@
 /** @file
   Processor or Compiler specific defines and types for Intel Itanium(TM) processors.
 
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials are licensed and made available 
 under the terms and conditions of the BSD License which accompanies this
 distribution.  The full text of the license may be found at
@@ -237,6 +237,12 @@ typedef INT64   INTN;
 #define MAX_ADDRESS   0xFFFFFFFFFFFFFFFFULL
 
 ///
+/// Maximum legal Itanium-based INTN and UINTN values.
+///
+#define MAX_INTN   ((INTN)0x7FFFFFFFFFFFFFFFULL)
+#define MAX_UINTN  ((UINTN)0xFFFFFFFFFFFFFFFFULL)
+
+///
 /// Per the Itanium Software Conventions and Runtime Architecture Guide,
 /// section 3.3.4, IPF stack must always be 16-byte aligned.
 ///