diff --git a/scp.c b/scp.c
index f798f795..f8695563 100644
--- a/scp.c
+++ b/scp.c
@@ -5971,10 +5971,11 @@ if (sim_clock_queue == QUEUE_LIST_END)
     fprintf (st, "%s event queue empty, time = %.0f, executing %s instructios/sec\n",
              sim_name, sim_time, sim_fmt_numeric (sim_timer_inst_per_sec ()));
 else {
-    const char *tim;
+    const char *tim = "";
+    double inst_per_sec = sim_timer_inst_per_sec ();
 
     fprintf (st, "%s event queue status, time = %.0f, executing %s instructions/sec\n",
-             sim_name, sim_time, sim_fmt_numeric (sim_timer_inst_per_sec ()));
+             sim_name, sim_time, sim_fmt_numeric (inst_per_sec));
     accum = 0;
     for (uptr = sim_clock_queue; uptr != QUEUE_LIST_END; uptr = uptr->next) {
         if (uptr == &sim_step_unit)
@@ -5990,7 +5991,8 @@ else {
                     }
                 else
                     fprintf (st, "  Unknown");
-        tim = sim_fmt_secs(((accum + uptr->time) / sim_timer_inst_per_sec ()) + (uptr->usecs_remaining / 1000000.0));
+        if (inst_per_sec != 0.0)
+            tim = sim_fmt_secs(((accum + uptr->time) / sim_timer_inst_per_sec ()) + (uptr->usecs_remaining / 1000000.0));
         if (uptr->usecs_remaining)
             fprintf (st, " at %d plus %.0f usecs%s%s%s%s\n", accum + uptr->time, uptr->usecs_remaining,
                                             (*tim) ? " (" : "", tim, (*tim) ? " total)" : "",