lib/libc/pc532/net/ntoh.s

   1 /*
   2  * Mach Operating System
   3  * Copyright (c) 1992 Carnegie Mellon University
   4  * Copyright (c) 1992 Helsinki University of Technology
   5  * All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify and distribute this software and its
   8  * documentation is hereby granted, provided that both the copyright
   9  * notice and this permission notice appear in all copies of the
  10  * software, derivative works or modified versions, and any portions
  11  * thereof, and that both notices appear in supporting documentation.
  12  *
  13  * CARNEGIE MELLON AND HELSINKI UNIVERSITY OF TECHNOLOGY ALLOW FREE USE
  14  * OF THIS SOFTWARE IN ITS "AS IS" CONDITION.  CARNEGIE MELLON AND
  15  * HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIM ANY LIABILITY OF ANY KIND
  16  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie Mellon
  26  * the rights to redistribute these changes.
  27  */
  28 /*
  29  * HISTORY
  30  * 11-May-92  Johannes Helander (jvh) at Helsinki University of Technology
  31  *      Created.
  32  *
  33  *      $Id: ntoh.s,v 1.1 1993/09/17 18:43:47 phil Exp $
  34  */
  35
  36 #include <machine/asm.h>
  37
  38         .text
  39 Entry(ntohl)
  40 ENTRY(htonl)
  41         movd    S_ARG0,r0
  42         rotw    8,r0
  43         rotd    16,r0
  44         rotw    8,r0
  45         ret     0
  46
  47
  48 Entry(ntohs)
  49 ENTRY(htons)
  50         movzwd  S_ARG0,r0
  51         rotw    8,r0
  52         ret     0