1/* EABI unaligned read/write functions.
2
3   Copyright (C) 2005 Free Software Foundation, Inc.
4   Contributed by CodeSourcery, LLC.
5
6   This file is free software; you can redistribute it and/or modify it
7   under the terms of the GNU General Public License as published by the
8   Free Software Foundation; either version 2, or (at your option) any
9   later version.
10
11   In addition to the permissions in the GNU General Public License, the
12   Free Software Foundation gives you unlimited permission to link the
13   compiled version of this file into combinations with other programs,
14   and to distribute those combinations without any restriction coming
15   from the use of this file.  (The General Public License restrictions
16   do apply in other respects; for example, they cover modification of
17   the file, and distribution when not linked into a combine
18   executable.)
19
20   This file is distributed in the hope that it will be useful, but
21   WITHOUT ANY WARRANTY; without even the implied warranty of
22   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
23   General Public License for more details.
24
25   You should have received a copy of the GNU General Public License
26   along with this program; see the file COPYING.  If not, write to
27   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
28   Boston, MA 02110-1301, USA.  */
29
30int __aeabi_uread4 (void *);
31int __aeabi_uwrite4 (int, void *);
32long long __aeabi_uread8 (void *);
33long long __aeabi_uwrite8 (long long, void *);
34
35struct __attribute__((packed)) u4 { int data; };
36struct __attribute__((packed)) u8 { long long data; };
37
38int
39__aeabi_uread4 (void *ptr)
40{
41  return ((struct u4 *) ptr)->data;
42}
43
44int
45__aeabi_uwrite4 (int data, void *ptr)
46{
47  ((struct u4 *) ptr)->data = data;
48  return data;
49}
50
51long long
52__aeabi_uread8 (void *ptr)
53{
54  return ((struct u8 *) ptr)->data;
55}
56
57long long
58__aeabi_uwrite8 (long long data, void *ptr)
59{
60  ((struct u8 *) ptr)->data = data;
61  return data;
62}
63