EdkCompatibilityPkg/Foundation/Library/CompilerStub/Ia32/memsetRep4.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
   4 ; This program and the accompanying materials
   5 ; are licensed and made available under the terms and conditions of the BSD License
   6 ; which accompanies this distribution.  The full text of the license may be found at
   7 ; http://opensource.org/licenses/bsd-license.php
   8 ;
   9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11 ;
  12 ; Module Name:
  13 ;
  14 ;   SetMem.asm
  15 ;
  16 ; Abstract:
  17 ;
  18 ;   memset function
  19 ;
  20 ; Notes:
  21 ;
  22 ;------------------------------------------------------------------------------
  23
  24     .686
  25     .model  flat,C
  26     .code
  27
  28 ;------------------------------------------------------------------------------
  29 ;  VOID *
  30 ;  memset (
  31 ;    OUT VOID   *Buffer,
  32 ;    IN  UINT8  Value,
  33 ;    IN  UINTN  Count
  34 ;    )
  35 ;------------------------------------------------------------------------------
  36 memset   PROC    USES    edi
  37     mov         ecx, [esp + 16]
  38     test        ecx, ecx
  39     je          @F
  40     mov         al,  [esp + 12]
  41     mov         ah,  al
  42     shrd        edx, eax, 16
  43     shld        eax, edx, 16
  44     mov         edx, ecx
  45     mov         edi, [esp + 8]
  46     shr         ecx, 2
  47     rep stosd
  48     mov         ecx, edx
  49     and         ecx, 3
  50     rep stosb
  51 @@:
  52     mov         eax, [esp + 8]
  53     ret
  54 memset   ENDP
  55
  56     END