diff --git a/H316/h316_cpu.c b/H316/h316_cpu.c
index d2ac4dc6..b1aa49bb 100644
--- a/H316/h316_cpu.c
+++ b/H316/h316_cpu.c
@@ -402,7 +402,7 @@ DEVICE cpu_dev = {
 
 t_stat sim_instr (void)
 {
-int32 AR, BR, MB, Y, t1, t2, t3, skip, dev;
+int32 AR, BR, MB, Y = 0, t1, t2, t3, skip, dev;
 uint32 ut;
 t_bool iack;                                            // [RLA] TRUE if an interrupt was taken this cycle
 t_stat reason;
diff --git a/H316/h316_dp.c b/H316/h316_dp.c
index d5f977d0..1a3f9208 100644
--- a/H316/h316_dp.c
+++ b/H316/h316_dp.c
@@ -790,7 +790,7 @@ t_stat dp_rdtrk (UNIT *uptr, uint16 *buf, uint32 c, uint32 h)
 uint32 da = ((c * dp_tab[dp_ctype].surf) + h) * DP_TRKLEN;
 int32 l;
 
-fseek (uptr->fileref, da * sizeof (uint16), SEEK_SET);
+(void)fseek (uptr->fileref, da * sizeof (uint16), SEEK_SET);
 l = fxread (buf, sizeof (uint16), DP_TRKLEN, uptr->fileref);
 for ( ; l < DP_TRKLEN; l++)
     buf[l] = 0;
@@ -809,7 +809,7 @@ t_stat dp_wrtrk (UNIT *uptr, uint16 *buf, uint32 c, uint32 h)
 {
 uint32 da = ((c * dp_tab[dp_ctype].surf) + h) * DP_TRKLEN;
 
-fseek (uptr->fileref, da * sizeof (uint16), SEEK_SET);
+(void)fseek (uptr->fileref, da * sizeof (uint16), SEEK_SET);
 fxwrite (buf, sizeof (uint16), DP_TRKLEN, uptr->fileref);
 if (ferror (uptr->fileref)) {
     sim_perror ("DP I/O error");
diff --git a/H316/h316_udp.c b/H316/h316_udp.c
index f981beda..374c244e 100644
--- a/H316/h316_udp.c
+++ b/H316/h316_udp.c
@@ -286,9 +286,9 @@ t_stat udp_create (DEVICE *dptr, const char *premote, int32 *pln)
   udp_links[link].used = TRUE;  *pln = link;
   udp_lines[link].dptr = udp_links[link].dptr = dptr;      // save device
   udp_tmxr.uptr = dptr->units;
-  udp_tmxr.last_poll_time = 1;          // h316'a use of TMXR doesn't poll periodically for connects
-  tmxr_poll_conn (&udp_tmxr);           // force connection initialization now
-  udp_tmxr.last_poll_time = 1;          // h316'a use of TMXR doesn't poll periodically for connects
+  udp_tmxr.last_poll_time = 1;          // h316's use of TMXR doesn't poll periodically for connects
+  (void)tmxr_poll_conn (&udp_tmxr);     // force connection initialization now
+  udp_tmxr.last_poll_time = 1;          // h316's use of TMXR doesn't poll periodically for connects
   sim_debug(IMP_DBG_UDP, dptr, "link %d - listening on port %s and sending to %s\n", link, udp_links[link].lport, udp_links[link].rhostport);
   return SCPE_OK;
 }