MdePkg/Library/BaseMemoryLibOptDxe/Ia32/SetMem.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, 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 ;   SetMem function
  19 ;
  20 ; Notes:
  21 ;
  22 ;------------------------------------------------------------------------------
  23
  24     .386
  25     .model  flat,C
  26     .code
  27
  28 ;------------------------------------------------------------------------------
  29 ;  VOID *
  30 ;  InternalMemSetMem (
  31 ;    IN VOID   *Buffer,
  32 ;    IN UINTN  Count,
  33 ;    IN UINT8  Value
  34 ;    )
  35 ;------------------------------------------------------------------------------
  36 InternalMemSetMem   PROC    USES    edi
  37     mov         ecx, [esp + 12]
  38     mov         al,  [esp + 16]
  39     mov         ah,  al
  40     shrd        edx, eax, 16
  41     shld        eax, edx, 16
  42     mov         edx, ecx
  43     mov         edi, [esp + 8]
  44     shr         ecx, 2
  45     rep stosd
  46     mov         ecx, edx
  47     and         ecx, 3
  48     rep stosb
  49     mov         eax, [esp + 8]
  50     ret
  51 InternalMemSetMem   ENDP
  52
  53     END