add support for GCC 4.0

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1407 8ced0084-cf51-0410-be5f-012b33b47a6e
2008-12-06 03:17:42 +00:00 · 2008-12-06 03:17:42 +00:00 · 14ff55d13b
parent 5c805163bf
commit 14ff55d13b
1 changed files with 6 additions and 2 deletions
--- a/Source/Core/Common/Src/Thread.cpp
+++ b/Source/Core/Common/Src/Thread.cpp
@ -390,8 +390,12 @@ LONG SyncInterlockedExchange(LONG *Dest, LONG Val)
 #if defined(__GNUC__) && defined (__GNUC_MINOR__) && ((4 < __GNUC__) || (4 == __GNUC__ && 1 <= __GNUC_MINOR__))
  return  __sync_lock_test_and_set(Dest, Val);
 #else
-	// TODO:
-	#error Implement support older GCC Versions
+  register int result;
+  __asm__ __volatile__("lock; xchg %0,%1"
+                       : "=r" (result), "=m" (*Dest)
+                       : "0" (Val), "m" (*Dest)
+                       : "memory");
+  return result;
 #endif
 }