Atomic example, used to inspect assembly code..

test/atomic.c

@@ -0,0 +1,50 @@
+#include "ucore/atomic.h"
+UC_ATOMIC(unsigned int) i;
+
+
+unsigned int get_i(void)
+{
+    return UC_ATOMIC_GET(&i);
+}
+
+unsigned int inc_i(void)
+{
+    return UC_ATOMIC_INC(&i);
+}
+
+unsigned int dec_i(void)
+{
+    return UC_ATOMIC_DEC(&i);
+}
+
+unsigned int sub_i(unsigned int v)
+{
+    return UC_ATOMIC_SUB(&i, v);
+}
+
+unsigned int add_i(unsigned int v)
+{
+    return UC_ATOMIC_ADD(&i, v);
+}
+
+unsigned int get_i_membar()
+{
+    unsigned int r;
+    UC_MEM_BARRIER();
+    r = i;
+    UC_MEM_BARRIER();
+
+    return r;
+}
+
+unsigned int get_i_compbar()
+{
+    unsigned int r;
+    UC_COMPILER_BARRIER();
+    r = i;
+    UC_COMPILER_BARRIER();
+
+    return r;
+}
+
+