audk/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep1.c

57 lines
1.3 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:
EfiSetMemRep1.c
Abstract:
This is the code that uses rep stosb SetMem service
--*/
#include "Tiano.h"
VOID
EfiCommonLibSetMem (
IN VOID *Buffer,
IN UINTN Count,
IN UINT8 Value
)
/*++
Input: VOID *Buffer - Pointer to buffer to write
UINTN Count - Number of bytes to write
UINT8 Value - Value to write
Output: None.
Saves:
Modifies:
Description: This function uses rep stosb to set memory.
--*/
{
__asm {
mov ecx, Count
test ecx, ecx
je Exit
mov al, Value
mov edi, Buffer
rep stosb
Exit:
}
}