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e1f414b6 | 1 | /** @file\r |
2 | Math worker functions.\r | |
3 | \r | |
bb817c56 | 4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e1f414b6 | 6 | \r |
7 | **/\r | |
8 | \r | |
1efcc4ae | 9 | \r |
f734a10a | 10 | \r |
e1f414b6 | 11 | \r |
12 | #include "BaseLibInternals.h"\r | |
13 | \r | |
14 | /**\r | |
15 | Switches the endianess of a 32-bit integer.\r | |
16 | \r | |
17 | This function swaps the bytes in a 32-bit unsigned value to switch the value\r | |
18 | from little endian to big endian or vice versa. The byte swapped value is\r | |
19 | returned.\r | |
20 | \r | |
2fc60b70 | 21 | @param Value A 32-bit unsigned value.\r |
e1f414b6 | 22 | \r |
2fc60b70 | 23 | @return The byte swapped Value.\r |
e1f414b6 | 24 | \r |
25 | **/\r | |
26 | UINT32\r | |
27 | EFIAPI\r | |
28 | SwapBytes32 (\r | |
2fc60b70 | 29 | IN UINT32 Value\r |
e1f414b6 | 30 | )\r |
31 | {\r | |
32 | UINT32 LowerBytes;\r | |
33 | UINT32 HigherBytes;\r | |
34 | \r | |
2fc60b70 | 35 | LowerBytes = (UINT32) SwapBytes16 ((UINT16) Value);\r |
36 | HigherBytes = (UINT32) SwapBytes16 ((UINT16) (Value >> 16));\r | |
e1f414b6 | 37 | \r |
38 | return (LowerBytes << 16 | HigherBytes);\r | |
39 | }\r |