mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-10 03:54:48 +00:00
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* EABI unaligned read/write functions.
|
|
|
|
Copyright (C) 2005-2016 Free Software Foundation, Inc.
|
|
Contributed by CodeSourcery, LLC.
|
|
|
|
This file is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 3, or (at your option) any
|
|
later version.
|
|
|
|
This file 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
|
|
General Public License for more details.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
int __aeabi_uread4 (void *);
|
|
int __aeabi_uwrite4 (int, void *);
|
|
long long __aeabi_uread8 (void *);
|
|
long long __aeabi_uwrite8 (long long, void *);
|
|
|
|
struct __attribute__((packed)) u4 { int data; };
|
|
struct __attribute__((packed)) u8 { long long data; };
|
|
|
|
int
|
|
__aeabi_uread4 (void *ptr)
|
|
{
|
|
return ((struct u4 *) ptr)->data;
|
|
}
|
|
|
|
int
|
|
__aeabi_uwrite4 (int data, void *ptr)
|
|
{
|
|
((struct u4 *) ptr)->data = data;
|
|
return data;
|
|
}
|
|
|
|
long long
|
|
__aeabi_uread8 (void *ptr)
|
|
{
|
|
return ((struct u8 *) ptr)->data;
|
|
}
|
|
|
|
long long
|
|
__aeabi_uwrite8 (long long data, void *ptr)
|
|
{
|
|
((struct u8 *) ptr)->data = data;
|
|
return data;
|
|
}
|