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Work on atomic library.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3911 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Nolan Check
2009-07-30 23:05:54 +00:00
parent 48365b5daa
commit 3fa198f208
2 changed files with 24 additions and 6 deletions
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12
Source/Core/Common/Src/Atomic_GCC.h
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@ -41,6 +41,10 @@ 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 AtomicIncrement(volatile u32& target) {
__sync_add_and_fetch(&target, 1);
}
@ -49,15 +53,19 @@ inline u32 AtomicLoad(volatile u32& src) {
return src; // 32-bit reads are always atomic.
}
inline u32 AtomicLoadAcquire(volatile u32& src) {
__sync_synchronize();
__sync_synchronize(); // TODO: May not be necessary.
return src;
}
inline void AtomicOr(volatile u32& target, u32 value) {
__sync_or_and_fetch(&target, value);
}
inline void AtomicStore(volatile u32& dest, u32 value) {
dest = value; // 32-bit writes are always atomic.
}
inline void AtomicStoreRelease(volatile u32& dest, u32 value) {
__sync_lock_test_and_set(&dest, value);
__sync_lock_test_and_set(&dest, value); // TODO: Wrong! This function is has acquire semantics.
}
}