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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/**
* Copyright (C) 2005-2012 Gekko Emulator
*
* @file atomic_gcc.h
* @author ShizZy <shizzy247@gmail.com>
* @date 2012-06-28
* @brief Cross-platform atomic operations - GCC
*
* @section LICENSE
* This program 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 2 of
* the License, or (at your option) any later version.
*
* This program 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 at
* http://www.gnu.org/copyleft/gpl.html
*
* Official project repository can be found at:
* http://code.google.com/p/gekko-gc-emu/
*/
#ifndef COMMON_ATOMIC_GCC_H_
#define COMMON_ATOMIC_GCC_H_
#include "types.h"
namespace common {
inline void AtomicAdd(volatile u32& target, u32 value) {
__sync_add_and_fetch(&target, value);
}
inline void AtomicAnd(volatile u32& target, u32 value) {
__sync_and_and_fetch(&target, value);
}
inline void AtomicDecrement(volatile u32& target) {
__sync_add_and_fetch(&target, -1);
}
inline void AtomicIncrement(volatile u32& target) {
__sync_add_and_fetch(&target, 1);
}
inline u32 AtomicLoad(volatile u32& src) {
return src;
}
inline u32 AtomicLoadAcquire(volatile u32& src) {
u32 result = src;
__asm__ __volatile__ ( "":::"memory" );
return result;
}
inline void AtomicOr(volatile u32& target, u32 value) {
__sync_or_and_fetch(&target, value);
}
inline void AtomicStore(volatile u32& dest, u32 value) {
dest = value;
}
inline void AtomicStoreRelease(volatile u32& dest, u32 value) {
__sync_lock_test_and_set(&dest, value);
}
} // namespace
#endif // COMMON_ATOMIC_GCC_H_
|
