11.4Suebayasi/* $NetBSD: byte_swap_2.S,v 1.4 2014/05/23 03:17:31 uebayasi Exp $ */ 21.1Schristos 31.1Schristos/*- 41.1Schristos * Copyright (c) 1990 The Regents of the University of California. 51.1Schristos * All rights reserved. 61.1Schristos * 71.1Schristos * This code is derived from software contributed to Berkeley by 81.1Schristos * William Jolitz. 91.1Schristos * 101.1Schristos * Redistribution and use in source and binary forms, with or without 111.1Schristos * modification, are permitted provided that the following conditions 121.1Schristos * are met: 131.1Schristos * 1. Redistributions of source code must retain the above copyright 141.1Schristos * notice, this list of conditions and the following disclaimer. 151.1Schristos * 2. Redistributions in binary form must reproduce the above copyright 161.1Schristos * notice, this list of conditions and the following disclaimer in the 171.1Schristos * documentation and/or other materials provided with the distribution. 181.1Schristos * 3. Neither the name of the University nor the names of its contributors 191.1Schristos * may be used to endorse or promote products derived from this software 201.1Schristos * without specific prior written permission. 211.1Schristos * 221.1Schristos * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 231.1Schristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 241.1Schristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 251.1Schristos * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 261.1Schristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271.1Schristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 281.1Schristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 291.1Schristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 301.1Schristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 311.1Schristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 321.1Schristos * SUCH DAMAGE. 331.1Schristos * 341.1Schristos * from: @(#)htons.s 5.2 (Berkeley) 12/17/90 351.1Schristos */ 361.1Schristos 371.1Schristos#include <machine/asm.h> 381.1Schristos#if defined(LIBC_SCCS) 391.4Suebayasi RCSID("$NetBSD: byte_swap_2.S,v 1.4 2014/05/23 03:17:31 uebayasi Exp $") 401.1Schristos#endif 411.1Schristos 421.2Syamt#if defined(_KERNEL) || defined(_STANDALONE) 431.2Syamt_ENTRY(_C_LABEL(bswap16)) 441.2Syamt#else /* defined(_KERNEL) || defined(_STANDALONE) */ 451.1Schristos_ENTRY(_C_LABEL(__bswap16)) 461.2Syamt#endif /* defined(_KERNEL) || defined(_STANDALONE) */ 471.1Schristos_ENTRY(_C_LABEL(ntohs)) 481.1Schristos_ENTRY(_C_LABEL(htons)) 491.1Schristos_PROF_PROLOGUE 501.1Schristos movzwl 4(%esp),%eax 511.3Sad xchgb %al, %ah 521.1Schristos ret 531.4Suebayasi#if defined(_KERNEL) || defined(_STANDALONE) 541.4SuebayasiEND(_C_LABEL(bswap16)) 551.4Suebayasi#else /* defined(_KERNEL) || defined(_STANDALONE) */ 561.4SuebayasiEND(_C_LABEL(__bswap16)) 571.4Suebayasi#endif /* defined(_KERNEL) || defined(_STANDALONE) */ 581.4SuebayasiEND(_C_LABEL(ntohs)) 591.4SuebayasiEND(_C_LABEL(htons)) 60