UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / memmove_ms.c

// ------------------------------------------------------------------------------\r
//\r
// Copyright (c) 2019, Pete Batard. All rights reserved.\r
// Copyright (c) 2021, Arm Limited. All rights reserved.<BR>\r
//\r
// SPDX-License-Identifier: BSD-2-Clause-Patent\r
//\r
// ------------------------------------------------------------------------------\r
\r
#if defined (_M_ARM64)\r
typedef unsigned __int64 size_t;\r
#else\r
typedef unsigned __int32 size_t;\r
#endif\r
\r
void *\r
memmove (\r
  void *,\r
  const void *,\r
  size_t\r
  );\r
\r
#pragma intrinsic(memmove)\r
#pragma function(memmove)\r
void *\r
memmove (\r
  void        *dest,\r
  const void  *src,\r
  size_t      n\r
  )\r
{\r
  unsigned char        *d;\r
  unsigned char const  *s;\r
\r
  d = dest;\r
  s = src;\r
\r
  if (d < s) {\r
    while (n-- != 0) {\r
      *d++ = *s++;\r
    }\r
  } else {\r
    d += n;\r
    s += n;\r
    while (n-- != 0) {\r
      *--d = *--s;\r
    }\r
  }\r
\r
  return dest;\r
}\r