ArmPkg/Library/CompilerIntrinsicsLib/memset_ms.c

   1 // ------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2017, Pete Batard. All rights reserved.<BR>
   4 // Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
   5 //
   6 // SPDX-License-Identifier: BSD-2-Clause-Patent
   7 //
   8 // ------------------------------------------------------------------------------
   9
  10 #if defined (_M_ARM64)
  11 typedef unsigned __int64 size_t;
  12 #else
  13 typedef unsigned __int32 size_t;
  14 #endif
  15
  16 void *
  17 memset (
  18   void *,
  19   int,
  20   size_t
  21   );
  22
  23 #pragma intrinsic(memset)
  24 #pragma function(memset)
  25 void *
  26 memset (
  27   void    *s,
  28   int     c,
  29   size_t  n
  30   )
  31 {
  32   unsigned char  *d;
  33
  34   d = s;
  35
  36   while (n-- != 0) {
  37     *d++ = (unsigned char)c;
  38   }
  39
  40   return s;
  41 }