1 /** @file 2 Math worker functions. 3 4 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 16 17 18 #include "BaseLibInternals.h" 19 20 /** 21 Switches the endianess of a 32-bit integer. 22 23 This function swaps the bytes in a 32-bit unsigned value to switch the value 24 from little endian to big endian or vice versa. The byte swapped value is 25 returned. 26 27 @param Value A 32-bit unsigned value. 28 29 @return The byte swapped Value. 30 31 **/ 32 UINT32 33 EFIAPI SwapBytes32(IN UINT32 Value)34SwapBytes32 ( 35 IN UINT32 Value 36 ) 37 { 38 UINT32 LowerBytes; 39 UINT32 HigherBytes; 40 41 LowerBytes = (UINT32) SwapBytes16 ((UINT16) Value); 42 HigherBytes = (UINT32) SwapBytes16 ((UINT16) (Value >> 16)); 43 44 return (LowerBytes << 16 | HigherBytes); 45 } 46