diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.asm')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.asm | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.asm b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.asm new file mode 100644 index 0000000000..5e64214fad --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.asm @@ -0,0 +1,75 @@ +;/*++
+;
+;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:
+;
+ ;EfiSetMemRep4.c
+;
+;Abstract:
+;
+ ;This is the code that uses rep stosd SetMem service
+;
+;--*/
+;
+;---------------------------------------------------------------------------
+ .686
+ .model flat,C
+ .code
+
+;---------------------------------------------------------------------------
+;#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 stosd to set memory.
+;
+;--*/
+EfiCommonLibSetMem PROC
+ push ebp
+ mov ebp,esp
+ push edi
+ mov ecx,dword ptr [ebp+0Ch]
+ test ecx, ecx
+ je Exit
+ mov al,byte ptr [ebp+10h]
+ mov ah, al
+ shrd edx, eax, 16
+ shld eax, edx, 16
+ mov edx, ecx
+ mov edi,dword ptr [ebp+8]
+ shr ecx, 2
+ rep stosd
+ mov ecx, edx
+ and ecx, 3
+ rep stosb
+Exit:
+ pop edi
+ pop ebp
+ ret
+
+EfiCommonLibSetMem ENDP
+ END
|