MdePkg/Library/BaseMemoryLibMmx/ZeroMemWrapper.c

   1 /** @file
   2   ZeroMem() implementation.
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   Module Name:  ZeroMemWrapper.c
  14
  15   The following BaseMemoryLib instances contain the same copy of this file:
  16
  17     BaseMemoryLib
  18     BaseMemoryLibMmx
  19     BaseMemoryLibSse2
  20     BaseMemoryLibRepStr
  21     BaseMemoryLibOptDxe
  22     BaseMemoryLibOptPei
  23     PeiMemoryLib
  24     DxeMemoryLib
  25
  26 **/
  27
  28 #include "MemLibInternals.h"
  29
  30 /**
  31   Fills a target buffer with zeros, and returns the target buffer.
  32
  33   This function fills Length bytes of Buffer with zeros, and returns Buffer.
  34   If Length > 0 and Buffer is NULL, then ASSERT().
  35   If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
  36
  37   @param  Buffer      Pointer to the target buffer to fill with zeros.
  38   @param  Length      Number of bytes in Buffer to fill with zeros.
  39
  40   @return Buffer.
  41
  42 **/
  43 VOID *
  44 EFIAPI
  45 ZeroMem (
  46   OUT VOID  *Buffer,
  47   IN UINTN  Length
  48   )
  49 {
  50   ASSERT (!(Buffer == NULL && Length > 0));
  51   ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
  52   return InternalMemZeroMem (Buffer, Length);
  53 }