1/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
2 *
3 * Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26	.section	.text
27	.align	3
28	.globl	setjmp
29	.type	setjmp,@function
30	.globl	longjmp
31	.type	longjmp,@function
32
33
34setjmp:
35	sbbo	r2, r14, 0, 4*12	/* SP, RA, FP, r5-r13 */
36	ldi	r14, 0
37	ret
38
39longjmp:
40	lbbo	r2, r14, 0, 4*12	/* SP, RA, FP, r5-r13 */
41	mov	r14, r15		/* copy second arg to return location */
42	qbne	1f, r14, 0		/* per stdC, we cannot return 0 */
43	ldi	r14, 1
441:
45	ret
46