arm/string/bzero_CortexA9.s

   1 /*
   2  * Copyright (c) 2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  *
  23  *  This file implements the following functions for the Cortex-A9 processor:
  24  *
  25  *  void bzero(void * destination,
  26  *             size_t length);
  27  *
  28  *  void __bzero(void * destination,
  29  *               size_t length);
  30  *
  31  * zeros out a buffer length bytes long, beginning at the address destination.
  32  *
  33  *  void *memset(void * destination,
  34  *               int value,
  35  *               size_t n);
  36  *
  37  * writes value converted to an unsigned char to n successive bytes, beginning
  38  * at destination.
  39  */