1*22882071Smatt/* $NetBSD: pipe.S,v 1.12 2009/12/14 01:07:42 matt Exp $ */ 281b108b4Sjonathan 3ae1bfcddSglass/*- 4ae1bfcddSglass * Copyright (c) 1991, 1993 5ae1bfcddSglass * The Regents of the University of California. All rights reserved. 6ae1bfcddSglass * 7ae1bfcddSglass * This code is derived from software contributed to Berkeley by 8ae1bfcddSglass * Ralph Campbell. 9ae1bfcddSglass * 10ae1bfcddSglass * Redistribution and use in source and binary forms, with or without 11ae1bfcddSglass * modification, are permitted provided that the following conditions 12ae1bfcddSglass * are met: 13ae1bfcddSglass * 1. Redistributions of source code must retain the above copyright 14ae1bfcddSglass * notice, this list of conditions and the following disclaimer. 15ae1bfcddSglass * 2. Redistributions in binary form must reproduce the above copyright 16ae1bfcddSglass * notice, this list of conditions and the following disclaimer in the 17ae1bfcddSglass * documentation and/or other materials provided with the distribution. 18eb7c1594Sagc * 3. Neither the name of the University nor the names of its contributors 19ae1bfcddSglass * may be used to endorse or promote products derived from this software 20ae1bfcddSglass * without specific prior written permission. 21ae1bfcddSglass * 22ae1bfcddSglass * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23ae1bfcddSglass * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24ae1bfcddSglass * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25ae1bfcddSglass * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26ae1bfcddSglass * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27ae1bfcddSglass * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28ae1bfcddSglass * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29ae1bfcddSglass * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30ae1bfcddSglass * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31ae1bfcddSglass * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32ae1bfcddSglass * SUCH DAMAGE. 33ae1bfcddSglass */ 34ae1bfcddSglass 35ae1bfcddSglass#include "SYS.h" 36ae1bfcddSglass 37ae1bfcddSglass#if defined(LIBC_SCCS) && !defined(lint) 38*22882071Smatt#if 0 39*22882071Smatt RCSID("from: @(#)pipe.s 8.1 (Berkeley) 6/4/93") 40*22882071Smatt#else 41*22882071Smatt RCSID("$NetBSD: pipe.S,v 1.12 2009/12/14 01:07:42 matt Exp $") 42*22882071Smatt#endif 43ae1bfcddSglass#endif /* LIBC_SCCS and not lint */ 44ae1bfcddSglass 4582fd76bbSkleink#ifdef WEAK_ALIAS 4682fd76bbSkleinkWEAK_ALIAS(pipe, _pipe) 4782fd76bbSkleink#endif 4882fd76bbSkleink 4982fd76bbSkleinkLEAF(_pipe) 50*22882071Smatt PIC_PROLOGUE(_pipe); 51*22882071Smatt 52*22882071Smatt SYSTRAP(pipe) # pipe(fildes) int fildes[2]; 53*22882071Smatt 54ae1bfcddSglass bne a3, zero, 1f 55*22882071Smatt INT_S v0, 0(a0) # store the two file descriptors 56*22882071Smatt INT_S v1, 4(a0) 57ae1bfcddSglass move v0, zero 58*22882071Smatt PIC_RETURN() 59ae1bfcddSglass1: 60*22882071Smatt PIC_TAILCALL(__cerror) 610cbe508fSsimonbEND(_pipe) 62