xref: /minix3/lib/libc/arch/vax/sys/syscall.S (revision e415d488727a332a2c69df018aa35e2cecf4148a)
12fe8fb19SBen Gras/*
22fe8fb19SBen Gras * Copyright (c) 1983, 1993
32fe8fb19SBen Gras *	The Regents of the University of California.  All rights reserved.
42fe8fb19SBen Gras * (c) UNIX System Laboratories, Inc.
52fe8fb19SBen Gras * All or some portions of this file are derived from material licensed
62fe8fb19SBen Gras * to the University of California by American Telephone and Telegraph
72fe8fb19SBen Gras * Co. or Unix System Laboratories, Inc. and are reproduced herein with
82fe8fb19SBen Gras * the permission of UNIX System Laboratories, Inc.
92fe8fb19SBen Gras *
102fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
112fe8fb19SBen Gras * modification, are permitted provided that the following conditions
122fe8fb19SBen Gras * are met:
132fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
142fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer.
152fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
162fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer in the
172fe8fb19SBen Gras *    documentation and/or other materials provided with the distribution.
182fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors
192fe8fb19SBen Gras *    may be used to endorse or promote products derived from this software
202fe8fb19SBen Gras *    without specific prior written permission.
212fe8fb19SBen Gras *
222fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
232fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
242fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
252fe8fb19SBen Gras * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
262fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
272fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
282fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
292fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
302fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
312fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
322fe8fb19SBen Gras * SUCH DAMAGE.
332fe8fb19SBen Gras */
342fe8fb19SBen Gras
35*e415d488SLionel Sambuc#include "SYS.h"
36*e415d488SLionel Sambuc
372fe8fb19SBen Gras#if defined(SYSLIBC_SCCS) && !defined(lint)
382fe8fb19SBen Gras	/* .asciz "@(#)syscall.s	8.2 (Berkeley) 1/21/94" */
39*e415d488SLionel SambucRCSID("$NetBSD: syscall.S,v 1.7 2011/01/25 02:38:15 matt Exp $")
402fe8fb19SBen Gras#endif /* SYSLIBC_SCCS and not lint */
412fe8fb19SBen Gras
422fe8fb19SBen GrasENTRY(syscall, 0)
432fe8fb19SBen Gras	movl	4(%ap),%r0	# syscall number
442fe8fb19SBen Gras	subl3	$1,(%ap)+,(%ap)	# one fewer arguments
452fe8fb19SBen Gras	chmk	%r0
462fe8fb19SBen Gras	jcs	1f
472fe8fb19SBen Gras	ret
482fe8fb19SBen Gras1:
492fe8fb19SBen Gras	jmp	CERROR+2
50*e415d488SLionel SambucEND(syscall)
51