#define SYNC_ADD __sync_add_and_fetch
#define SYNC_FETCH_AND_OR __sync_fetch_and_or
-#define MASK(n) ((1LL << (n)) - 1)
-
-#define TAG (1LL << 63)
-#define IS_TAGGED(v) ((uint64_t)(v) < 0)
-#define TAG_VALUE(v) ((uint64_t)(v) | TAG)
-#define STRIP_TAG(v) ((uint64_t)(v) & ~TAG)
+#define MASK(n) ((1ULL << (n)) - 1)
#define TRUE 1
#define FALSE 0
+#define TAG (1ULL << 63)
+#define TAG_VALUE(v) ((uint64_t)(v) | TAG)
+#define IS_TAGGED(v) ((uint64_t)(v) & TAG)
+#define STRIP_TAG(v) ((uint64_t)(v) & ~TAG)
+
typedef unsigned long long uint64_t;
typedef unsigned int uint32_t;
typedef unsigned char uint8_t;