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Diffstat (limited to 'src/common/src/atomic_gcc.h')
-rw-r--r-- | src/common/src/atomic_gcc.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/common/src/atomic_gcc.h b/src/common/src/atomic_gcc.h new file mode 100644 index 000000000..660926561 --- /dev/null +++ b/src/common/src/atomic_gcc.h @@ -0,0 +1,72 @@ +/** + * 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_
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