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/*++
Copyright (c) 2007, 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:
EfiZeroMemRep4.c
Abstract:
This is the code that uses rep stosd 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 stosd to zero memory.
--*/
{
__asm {
mov ecx, Count
test ecx, ecx
je Exit
xor eax, eax
mov edi, Buffer
mov edx, ecx
shr ecx, 2
and edx, 3
rep stosd
mov ecx, edx
rep stosb
Exit:
}
}
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