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-rw-r--r--UnixPkg/Library/UnixBaseLib/SwapBytes16.c39
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diff --git a/UnixPkg/Library/UnixBaseLib/SwapBytes16.c b/UnixPkg/Library/UnixBaseLib/SwapBytes16.c
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+/** @file
+ Math worker functions.
+
+ Copyright (c) 2006 - 2008, 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
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+
+
+#include "BaseLibInternals.h"
+
+/**
+ Switches the endianess of a 16-bit integer.
+
+ This function swaps the bytes in a 16-bit unsigned value to switch the value
+ from little endian to big endian or vice versa. The byte swapped value is
+ returned.
+
+ @param Value A 16-bit unsigned value.
+
+ @return The byte swapped Value.
+
+**/
+UINT16
+EFIAPI
+SwapBytes16 (
+ IN UINT16 Value
+ )
+{
+ return (UINT16) ((Value<< 8) | (Value>> 8));
+}