1 /* $NetBSD: swapcontext.S,v 1.3 2007/11/18 14:11:25 skrll Exp $ */
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
33 #include <machine/mcontext.h>
35 #if defined(SYSLIBC_SCCS) && !defined(lint)
36 RCSID("$NetBSD: swapcontext.S,v 1.3 2007/11/18 14:11:25 skrll Exp $")
37 #endif /* SYSLIBC_SCCS && !lint */
39 LEAF_ENTRY(swapcontext)
40 stw %rp, HPPA_FRAME_CRP(%sp)
41 stw %arg0, HPPA_FRAME_ARG(0)(%sp)
42 stw %arg1, HPPA_FRAME_ARG(1)(%sp)
45 ldw HPPA_FRAME_ARG(0)(%sp), %arg1
46 ldw HPPA_FRAME_ARG(1)(%sp), %arg0
47 stw %r0, (_OFFSETOF_UC_GREGS + _REG_RET0 * SZREG)(%arg1)
49 stw %r1, (_OFFSETOF_UC_GREGS + _REG_PCOQT * SZREG)(%arg1)
50 stw %rp, (_OFFSETOF_UC_GREGS + _REG_PCOQH * SZREG)(%arg1)