xref: /minix3/lib/libc/arch/vax/sys/syscall.S (revision 2fe8fb192fe7e8720e3e7a77f928da545e872a6a)
1*2fe8fb19SBen Gras/*
2*2fe8fb19SBen Gras * Copyright (c) 1983, 1993
3*2fe8fb19SBen Gras *	The Regents of the University of California.  All rights reserved.
4*2fe8fb19SBen Gras * (c) UNIX System Laboratories, Inc.
5*2fe8fb19SBen Gras * All or some portions of this file are derived from material licensed
6*2fe8fb19SBen Gras * to the University of California by American Telephone and Telegraph
7*2fe8fb19SBen Gras * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8*2fe8fb19SBen Gras * the permission of UNIX System Laboratories, Inc.
9*2fe8fb19SBen Gras *
10*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
11*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions
12*2fe8fb19SBen Gras * are met:
13*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
14*2fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer.
15*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
16*2fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer in the
17*2fe8fb19SBen Gras *    documentation and/or other materials provided with the distribution.
18*2fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors
19*2fe8fb19SBen Gras *    may be used to endorse or promote products derived from this software
20*2fe8fb19SBen Gras *    without specific prior written permission.
21*2fe8fb19SBen Gras *
22*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23*2fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24*2fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25*2fe8fb19SBen Gras * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26*2fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27*2fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28*2fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29*2fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30*2fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31*2fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32*2fe8fb19SBen Gras * SUCH DAMAGE.
33*2fe8fb19SBen Gras */
34*2fe8fb19SBen Gras
35*2fe8fb19SBen Gras#if defined(SYSLIBC_SCCS) && !defined(lint)
36*2fe8fb19SBen Gras	/* .asciz "@(#)syscall.s	8.2 (Berkeley) 1/21/94" */
37*2fe8fb19SBen Gras	.asciz "$NetBSD: syscall.S,v 1.6 2003/08/07 16:42:34 agc Exp $"
38*2fe8fb19SBen Gras#endif /* SYSLIBC_SCCS and not lint */
39*2fe8fb19SBen Gras
40*2fe8fb19SBen Gras#include "SYS.h"
41*2fe8fb19SBen Gras
42*2fe8fb19SBen GrasENTRY(syscall, 0)
43*2fe8fb19SBen Gras	movl	4(%ap),%r0	# syscall number
44*2fe8fb19SBen Gras	subl3	$1,(%ap)+,(%ap)	# one fewer arguments
45*2fe8fb19SBen Gras	chmk	%r0
46*2fe8fb19SBen Gras	jcs	1f
47*2fe8fb19SBen Gras	ret
48*2fe8fb19SBen Gras1:
49*2fe8fb19SBen Gras	jmp	CERROR+2
50