MdePkg/Library/BaseMemoryLibOptPei/Ia32/SetMem.nasm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   5 ;
   6 ; Module Name:
   7 ;
   8 ;   SetMem.Asm
   9 ;
  10 ; Abstract:
  11 ;
  12 ;   SetMem function
  13 ;
  14 ; Notes:
  15 ;
  16 ;------------------------------------------------------------------------------
  17
  18     SECTION .text
  19
  20 ;------------------------------------------------------------------------------
  21 ;  VOID *
  22 ;  InternalMemSetMem (
  23 ;    IN VOID   *Buffer,
  24 ;    IN UINTN  Count,
  25 ;    IN UINT8  Value
  26 ;    )
  27 ;------------------------------------------------------------------------------
  28 global ASM_PFX(InternalMemSetMem)
  29 ASM_PFX(InternalMemSetMem):
  30     push    edi
  31     mov         ecx, [esp + 12]
  32     mov         al,  [esp + 16]
  33     mov         ah,  al
  34     shrd        edx, eax, 16
  35     shld        eax, edx, 16
  36     mov         edx, ecx
  37     mov         edi, [esp + 8]
  38     shr         ecx, 2
  39     rep stosd
  40     mov         ecx, edx
  41     and         ecx, 3
  42     rep stosb
  43     mov         eax, [esp + 8]
  44     pop     edi
  45     ret
  46