audk/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiZeroMemRep1.c

53 lines
1.2 KiB
C

/*++
Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
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:
EfiZeroMemRep1.c
Abstract:
This is the code that uses rep stosb ZeroMem service
--*/
#include "Tiano.h"
VOID
EfiCommonLibZeroMem (
IN VOID *Buffer,
IN UINTN Count
)
/*++
Input: VOID *Buffer - Pointer to buffer to clear
UINTN Count - Number of bytes to clear
Output: None.
Saves:
Modifies:
Description: This function uses rep stosb to zero memory.
--*/
{
__asm {
mov ecx, Count
xor eax, eax
mov edi, Buffer
rep stosb
Exit:
}
}