--- xinu/sys/wakeup.c	2018/04/24 17:39:04	1.1
+++ xinu/sys/wakeup.c	2018/04/24 17:39:55	1.1.1.2
@@ -15,6 +15,6 @@ INTPROC	wakeup()
         while (nonempty(clockq) && firstkey(clockq) <= 0)
                 ready(getfirst(clockq),RESCHNO);
 	if ( slnempty = nonempty(clockq) )
-		sltop = (short *) & q[q[clockq].qnext].qkey;
+		sltop = & q[q[clockq].qnext].qkey;
 	resched();
 }