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htons.S

htons.S 2.0 KB
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  1. /*	$OpenBSD: htons.S,v 1.4 2007/11/25 18:25:36 deraadt Exp $	*/
    2. 

  2. /*
    3. 

  3.  * Copyright (c) 1992, 1993
    4. 

  4.  *	The Regents of the University of California.  All rights reserved.
    5. 

  5.  *
    6. 

  6.  * This software was developed by the Computer Systems Engineering group
    7. 

  7.  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
    8. 

  8.  * contributed to Berkeley.
    9. 

  9.  *
    10. 

  10.  * Redistribution and use in source and binary forms, with or without
    11. 

  11.  * modification, are permitted provided that the following conditions
    12. 

  12.  * are met:
    13. 

  13.  * 1. Redistributions of source code must retain the above copyright
    14. 

  14.  *    notice, this list of conditions and the following disclaimer.
    15. 

  15.  * 2. Redistributions in binary form must reproduce the above copyright
    16. 

  16.  *    notice, this list of conditions and the following disclaimer in the
    17. 

  17.  *    documentation and/or other materials provided with the distribution.
    18. 

  18.  * 3. Neither the name of the University nor the names of its contributors
    19. 

  19.  *    may be used to endorse or promote products derived from this software
    20. 

  20.  *    without specific prior written permission.
    21. 

  21.  *
    22. 

  22.  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    23. 

  23.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    24. 

  24.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    25. 

  25.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    26. 

  26.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    27. 

  27.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    28. 

  28.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    29. 

  29.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    30. 

  30.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    31. 

  31.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    32. 

  32.  * SUCH DAMAGE.
    33. 

  33.  *
    34. 

  34.  * Header: htons.s,v 1.1 92/06/25 12:47:05 torek Exp
    35. 

  35.  */
    36. 

  36. 

  37. /* netorder = htons(hostorder) */
    38. 

  38. 

  39. #include "DEFS.h"
    40. 

  40. 

  41. ENTRY(htons)
    42. 

  42. 	sethi	%hi(0xffff0000), %o1
    43. 

  43. 	retl
    44. 

  44. 	 andn	%o0, %o1, %o0
    45. 

  45.