# define unlikely(expr) (expr)
#endif
-#ifndef prefetch
-# define prefetch(addr)
+/* prefetchr() - prefetch into L1 cache for read */
+#ifndef prefetchr
+# define prefetchr(addr)
+#endif
+
+/* prefetchw() - prefetch into L1 cache for write */
+#ifndef prefetchw
+# define prefetchw(addr)
#endif
#ifndef _cold_attribute