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1 /** @file
2 SetMem64() implementation.
3
4 Copyright (c) 2006, Intel Corporation<BR>
5 All rights reserved. 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 Module Name: SetMem64Wrapper.c
14
15 The following BaseMemoryLib instances share the same version of this file:
16
17 BaseMemoryLib
18 BaseMemoryLibMmx
19 BaseMemoryLibSse2
20 BaseMemoryLibRepStr
21 PeiMemoryLib
22 DxeMemoryLib
23
24 **/
25
26 #include "MemLibInternals.h"
27
28 /**
29 Fills a target buffer with a 64-bit value, and returns the target buffer.
30
31 This function fills Length bytes of Buffer with the 64-bit value specified by
32 Value, and returns Buffer. Value is repeated every 64-bits in for Length
33 bytes of Buffer.
34
35 If Length > 0 and Buffer is NULL, then ASSERT().
36 If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
37 If Buffer is not aligned on a 64-bit boundary, then ASSERT().
38 If Length is not aligned on a 64-bit boundary, then ASSERT().
39
40 @param Buffer Pointer to the target buffer to fill.
41 @param Length Number of bytes in Buffer to fill.
42 @param Value Value with which to fill Length bytes of Buffer.
43
44 @return Buffer.
45
46 **/
47 VOID *
48 EFIAPI
49 SetMem64 (
50 OUT VOID *Buffer,
51 IN UINTN Length,
52 IN UINT64 Value
53 )
54 {
55 if (Length == 0) {
56 return Buffer;
57 }
58
59 ASSERT (Buffer != NULL);
60 ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
61 ASSERT ((((UINTN)Buffer) & (sizeof (Value) - 1)) == 0);
62 ASSERT ((Length & (sizeof (Value) - 1)) == 0);
63
64 return InternalMemSetMem64 (Buffer, Length / sizeof (Value), Value);
65 }