--- xinu/sys/wait.c	2018/04/24 17:39:04	1.1.1.1
+++ xinu/sys/wait.c	2018/04/24 17:40:04	1.1.1.2
@@ -13,13 +13,12 @@
 SYSCALL	wait(sem)
 	int	sem;
 {
-	PStype	ps;
-	register struct	sentry	*sptr;
-	register struct	pentry	*pptr;
+	struct	sentry	*sptr;
+	struct	pentry	*pptr;
 
-	disable(ps);
+	disable();
 	if (isbadsem(sem) || (sptr= &semaph[sem])->sstate==SFREE) {
-		restore(ps);
+		restore();
 		return(SYSERR);
 	}
 	if (--(sptr->semcnt) < 0) {
@@ -28,6 +27,6 @@ SYSCALL	wait(sem)
 		enqueue(currpid,sptr->sqtail);
 		resched();
 	}
-	restore(ps);
+	restore();
 	return(OK);
 }