mirror of https://github.com/acidanthera/audk.git
76 lines
2.0 KiB
NASM
76 lines
2.0 KiB
NASM
;/*++
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;
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;Copyright (c) 2007, Intel Corporation
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;All rights reserved. This program and the accompanying materials
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;are licensed and made available under the terms and conditions of the BSD License
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;which accompanies this distribution. The full text of the license may be found at
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;http://opensource.org/licenses/bsd-license.php
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;
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;THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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;WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;
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;Module Name:
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;
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;EfiSetMemRep4.c
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;
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;Abstract:
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;
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;This is the code that uses rep stosd SetMem service
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;
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;--*/
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;
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;---------------------------------------------------------------------------
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.686
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.model flat,C
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.code
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;---------------------------------------------------------------------------
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;#include "Tiano.h"
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;
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;VOID
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;EfiCommonLibSetMem (
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;IN VOID *Buffer,
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;IN UINTN Count,
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;IN UINT8 Value
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;)
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;/*++
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;
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;Input: VOID *Buffer - Pointer to buffer to write
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;UINTN Count - Number of bytes to write
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;UINT8 Value - Value to write
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;
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;Output: None.
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;
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;Saves:
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;
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;Modifies:
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;
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;Description: This function uses rep stosd to set memory.
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;
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;--*/
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EfiCommonLibSetMem PROC
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push ebp
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mov ebp,esp
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push edi
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mov ecx,dword ptr [ebp+0Ch]
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test ecx, ecx
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je Exit
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mov al,byte ptr [ebp+10h]
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mov ah, al
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shrd edx, eax, 16
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shld eax, edx, 16
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mov edx, ecx
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mov edi,dword ptr [ebp+8]
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shr ecx, 2
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rep stosd
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mov ecx, edx
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and ecx, 3
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rep stosb
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Exit:
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pop edi
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pop ebp
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ret
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EfiCommonLibSetMem ENDP
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END
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