From 50f80f61cf73c230b54507b31ab3e9e384b13825 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Wed, 16 Mar 2022 14:44:20 -0700
Subject: [PATCH] PDP11: Only compute vector ilvl when it will be used
 (Coverity)

---
 PDP11/pdp11_io_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/PDP11/pdp11_io_lib.c b/PDP11/pdp11_io_lib.c
index adf86e03..d1bc136a 100644
--- a/PDP11/pdp11_io_lib.c
+++ b/PDP11/pdp11_io_lib.c
@@ -324,8 +324,8 @@ dibp->dptr = dptr;                                      /* save back pointer */
 if (dibp->vnum > VEC_DEVMAX)
     return SCPE_IERR;
 vec = dibp->vec;
-ilvl = dibp->vloc / 32;
 #if (VEC_SET != 0)
+ilvl = dibp->vloc / 32;
 ibit = dibp->vloc % 32;
 if (vec)
     vec |= (int_vec_set[ilvl][ibit] & ~3);
@@ -346,8 +346,8 @@ if (vec && !(sim_switches & SWMASK ('P'))) {
             continue;
             }
         cdvec = cdibp->vec;
-        ilvl = cdibp->vloc / 32;
 #if (VEC_SET != 0)
+        ilvl = cdibp->vloc / 32;
         ibit = cdibp->vloc % 32;
         if (cdvec)
             cdvec |= (int_vec_set[ilvl][ibit] & ~3);