1*8a3081d2Smatt/* $NetBSD: pipe.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */ 26cf6fe02Smatt 36cf6fe02Smatt/*- 46cf6fe02Smatt * Copyright (c) 2014 The NetBSD Foundation, Inc. 56cf6fe02Smatt * All rights reserved. 66cf6fe02Smatt * 76cf6fe02Smatt * This code is derived from software contributed to The NetBSD Foundation 86cf6fe02Smatt * by Matt Thomas of 3am Software Foundry. 96cf6fe02Smatt * 106cf6fe02Smatt * Redistribution and use in source and binary forms, with or without 116cf6fe02Smatt * modification, are permitted provided that the following conditions 126cf6fe02Smatt * are met: 136cf6fe02Smatt * 1. Redistributions of source code must retain the above copyright 146cf6fe02Smatt * notice, this list of conditions and the following disclaimer. 156cf6fe02Smatt * 2. Redistributions in binary form must reproduce the above copyright 166cf6fe02Smatt * notice, this list of conditions and the following disclaimer in the 176cf6fe02Smatt * documentation and/or other materials provided with the distribution. 186cf6fe02Smatt * 196cf6fe02Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 206cf6fe02Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 216cf6fe02Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 226cf6fe02Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 236cf6fe02Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 246cf6fe02Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 256cf6fe02Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 266cf6fe02Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 276cf6fe02Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 286cf6fe02Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 296cf6fe02Smatt * POSSIBILITY OF SUCH DAMAGE. 306cf6fe02Smatt */ 316cf6fe02Smatt 326cf6fe02Smatt#include "SYS.h" 336cf6fe02Smatt 346cf6fe02Smatt#if defined(LIBC_SCCS) && !defined(lint) 35*8a3081d2Smatt RCSID("$NetBSD: pipe.S,v 1.2 2015/03/27 06:44:28 matt Exp $") 366cf6fe02Smatt#endif /* LIBC_SCCS and not lint */ 376cf6fe02Smatt 386cf6fe02Smatt#ifdef WEAK_ALIAS 396cf6fe02SmattWEAK_ALIAS(pipe, _pipe) 406cf6fe02Smatt#endif 416cf6fe02Smatt 426cf6fe02SmattENTRY(_pipe) 43*8a3081d2Smatt mv a2, a0 # a0 will be overwritten 446cf6fe02Smatt SYSTRAP(pipe) # pipe(fildes) int fildes[2]; 456cf6fe02Smatt JUMP_TO_CERROR() /* error */ 466cf6fe02Smatt /* success */ 47*8a3081d2Smatt sw a0, 0(a2) # store the two file descriptors 48*8a3081d2Smatt sw a1, __SIZEOF_INT__(a2) 49*8a3081d2Smatt li a0, 0 506cf6fe02Smatt ret 516cf6fe02SmattEND(_pipe) 52