diff options
Diffstat (limited to 'EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c')
-rw-r--r-- | EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c b/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c new file mode 100644 index 0000000..6028b19 --- /dev/null +++ b/EDK/Foundation/Library/EfiCommonLib/EfiCopyMem.c @@ -0,0 +1,69 @@ +/*++ + +Copyright (c) 2004, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + EfiCopyMem.c + +Abstract: + + Implementation of the EfiCopyMem routine. This function is broken + out into its own source file so that it can be excluded from a + build for a particular platform easily if an optimized version + is desired. + +--*/ + +#include "Tiano.h" + +VOID +EfiCommonLibCopyMem ( + IN VOID *Destination, + IN VOID *Source, + IN UINTN Length + ) +/*++ + +Routine Description: + + Copy Length bytes from Source to Destination. + +Arguments: + + Destination - Target of copy + + Source - Place to copy from + + Length - Number of bytes to copy + +Returns: + + None + +--*/ +{ + CHAR8 *Destination8; + CHAR8 *Source8; + + if (Source < Destination) { + Destination8 = (CHAR8 *) Destination + Length - 1; + Source8 = (CHAR8 *) Source + Length - 1; + while (Length--) { + *(Destination8--) = *(Source8--); + } + } else { + Destination8 = (CHAR8 *) Destination; + Source8 = (CHAR8 *) Source; + while (Length--) { + *(Destination8++) = *(Source8++); + } + } +} |