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Last change
on this file since 85718 was 80721, checked in by vboxsync, 6 years ago |
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Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
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File size:
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| 1 | /** @file
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| 2 | Math worker functions.
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| 3 |
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| 4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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| 5 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 6 |
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| 7 | **/
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| 8 |
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| 9 |
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| 10 |
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| 11 |
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| 12 | #include "BaseLibInternals.h"
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| 13 |
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| 14 | /**
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| 15 | Switches the endianess of a 32-bit integer.
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| 16 |
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| 17 | This function swaps the bytes in a 32-bit unsigned value to switch the value
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| 18 | from little endian to big endian or vice versa. The byte swapped value is
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| 19 | returned.
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| 20 |
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| 21 | @param Value A 32-bit unsigned value.
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| 22 |
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| 23 | @return The byte swapped Value.
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| 24 |
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| 25 | **/
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| 26 | UINT32
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| 27 | EFIAPI
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| 28 | SwapBytes32 (
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| 29 | IN UINT32 Value
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| 30 | )
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| 31 | {
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| 32 | UINT32 LowerBytes;
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| 33 | UINT32 HigherBytes;
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| 34 |
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| 35 | LowerBytes = (UINT32) SwapBytes16 ((UINT16) Value);
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| 36 | HigherBytes = (UINT32) SwapBytes16 ((UINT16) (Value >> 16));
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| 37 |
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| 38 | return (LowerBytes << 16 | HigherBytes);
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| 39 | }
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