1 /** @file 2 Implementation of the EfiSetMem routine. This function is broken 3 out into its own source file so that it can be excluded from a 4 build for a particular platform easily if an optimized version 5 is desired. 6 7 Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> 8 This program and the accompanying materials 9 are licensed and made available under the terms and conditions of the BSD License 10 which accompanies this distribution. The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php. 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 **/ 17 18 19 20 21 #include "MemLibInternals.h" 22 23 /** 24 Set Buffer to Value for Size bytes. 25 26 @param Buffer The memory to set. 27 @param Length The number of bytes to set. 28 @param Value The value of the set operation. 29 30 @return Buffer 31 32 **/ 33 VOID * 34 EFIAPI 35 InternalMemSetMem ( 36 OUT VOID *Buffer, 37 IN UINTN Length, 38 IN UINT8 Value 39 ) 40 { 41 // 42 // Declare the local variables that actually move the data elements as 43 // volatile to prevent the optimizer from replacing this function with 44 // the intrinsic memset() 45 // 46 volatile UINT8 *Pointer; 47 48 Pointer = (UINT8*)Buffer; 49 while (Length-- > 0) { 50 *(Pointer++) = Value; 51 } 52 return Buffer; 53 } 54
