--- xinu/sys/send.c	2018/04/24 17:39:04	1.1.1.1
+++ xinu/sys/send.c	2018/04/24 17:40:04	1.1.1.2
@@ -10,25 +10,19 @@
  */
 SYSCALL	send(pid, msg)
 int	pid;
-int	msg;
+WORD	msg;
 {
-	struct	pentry	*pptr;		/* receiver's proc. table addr.	*/
-	PStype	ps;
+	struct	pentry	*pptr;
 
-	disable(ps);
+	disable();
 	if (isbadpid(pid) || ( (pptr= &proctab[pid])->pstate == PRFREE)
-	   || pptr->phasmsg) {
-		restore(ps);
+	   || pptr->phasmsg != 0) {
+		restore();
 		return(SYSERR);
 	}
-	pptr->pmsg = msg;		/* deposit message		*/
-	pptr->phasmsg = TRUE;
-	if (pptr->pstate == PRRECV)	/* if receiver waits, start it	*/
+	pptr->pmsg = msg;
+	pptr->phasmsg++;
+	if (pptr->pstate == PRRECV)
 		ready(pid, RESCHYES);
-	else if (pptr->pstate == PRTRECV) {
-		unsleep(pid);
-		ready(pid, RESCHYES);
-	}
-	restore(ps);
 	return(OK);
 }