about summary refs log tree commit diff
path: root/sysdeps/unix/bsd/sun/m68k/syscall.S
blob: 0a98da7c67e4d3e7264c760df81eafca0adda53c (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/* Copyright (C) 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <sysdep.h>

ENTRY (syscall)
	movel sp@, d0		/* Save return address in D0.  */
	movel sp@(4), sp@	/* Put syscall number at top of stack.  */
	movel d0, sp@(4)	/* Put return address under it.  */
	trap #0			/* Do syscall; pops number from stack.  */
	jcs error
	ret
error:	jmp syscall_error