diff --git a/VAX/vax_cpu.c b/VAX/vax_cpu.c
index b751e352..23d239fb 100644
--- a/VAX/vax_cpu.c
+++ b/VAX/vax_cpu.c
@@ -1946,7 +1946,8 @@ for ( ;; ) {
             temp = CC_V;
             SET_TRAP (TRAP_DIVZRO);
             }
-        else if ((op0 == LMASK) && (op1 == LSIGN)) {    /* overflow? */
+        else if ((((uint32)op0) == LMASK) && 
+                 (((uint32)op1) == LSIGN)) {            /* overflow? */
             r = op1;
             temp = CC_V;
             INTOV;
@@ -3222,7 +3223,7 @@ if ((mc != 0) && !get_yn ("Really truncate memory [N]?", FALSE))
 nM = (uint32 *) calloc (val >> 2, sizeof (uint32));
 if (nM == NULL)
     return SCPE_MEM;
-clim = (uint32) ((((uint32) val) < MEMSIZE)? val: MEMSIZE);
+clim = (((uint32) val) < MEMSIZE)? (uint32)val: MEMSIZE;
 for (i = 0; i < clim; i = i + 4)
     nM[i >> 2] = M[i >> 2];
 free (M);
diff --git a/VAX/vax_mmu.c b/VAX/vax_mmu.c
index 79175c41..d86ba825 100644
--- a/VAX/vax_mmu.c
+++ b/VAX/vax_mmu.c
@@ -177,7 +177,10 @@ if (mapen) {                                            /* mapping on? */
         xpte = fill (va, lnt, acc, NULL);               /* fill if needed */
     pa = (xpte.pte & TLB_PFN) | off;                    /* get phys addr */
     }
-else pa = va & PAMASK;
+else {
+    pa = va & PAMASK;
+    off = 0;
+    }
 if ((pa & (lnt - 1)) == 0) {                            /* aligned? */
     if (lnt >= L_LONG)                                  /* long, quad? */
         return ReadL (pa);
@@ -185,7 +188,7 @@ if ((pa & (lnt - 1)) == 0) {                            /* aligned? */
         return ReadW (pa);
     return ReadB (pa);                                  /* byte */
     }
-if (mapen && ((off + lnt) > VA_PAGSIZE)) {              /* cross page? */
+if (mapen && ((uint32)(off + lnt) > VA_PAGSIZE)) {      /* cross page? */
     vpn = VA_GETVPN (va + lnt);                         /* vpn 2nd page */
     tbi = VA_GETTBI (vpn);
     xpte = (va & VA_S0)? stlb[tbi]: ptlb[tbi];          /* access tlb */
@@ -239,7 +242,10 @@ if (mapen) {
         xpte = fill (va, lnt, acc, NULL);
     pa = (xpte.pte & TLB_PFN) | off;
     }
-else pa = va & PAMASK;
+else {
+    pa = va & PAMASK;
+    off = 0;
+    }
 if ((pa & (lnt - 1)) == 0) {                            /* aligned? */
     if (lnt >= L_LONG)                                  /* long, quad? */
         WriteL (pa, val);
@@ -248,7 +254,7 @@ if ((pa & (lnt - 1)) == 0) {                            /* aligned? */
     else WriteB (pa, val);                              /* byte */
     return;
     }
-if (mapen && ((off + lnt) > VA_PAGSIZE)) {
+if (mapen && ((uint32)(off + lnt) > VA_PAGSIZE)) {
     vpn = VA_GETVPN (va + 4);
     tbi = VA_GETTBI (vpn);
     xpte = (va & VA_S0)? stlb[tbi]: ptlb[tbi];          /* access tlb */
diff --git a/sim_ether.c b/sim_ether.c
index 4cdcc58b..445b172c 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -2217,6 +2217,7 @@ key ^= 0x3f;
 return (hash[key>>3] & (1 << (key&0x7)));
 }
 
+#if 0
 static int
 _eth_hash_validate(ETH_MAC *MultiCastList, int count, ETH_MULTIHASH hash)
 {
@@ -2268,6 +2269,7 @@ ETH_MULTIHASH thash = {0x01, 0x40, 0x00, 0x00, 0x48, 0x88, 0x40, 0x00};
 
 _eth_hash_validate(tMacs, sizeof(tMacs)/sizeof(tMacs[0]), thash);
 }
+#endif
 
 /* The IP header */
 struct IPHeader {
@@ -2935,10 +2937,12 @@ if (dev->dptr->dctrl & dev->dbit) {
     eth_mac_fmt(&dev->filter_address[i], mac);
     sim_debug(dev->dbit, dev->dptr, "  Addr[%d]: %s\n", i, mac);
     }
-  if (dev->all_multicast)
+  if (dev->all_multicast) {
     sim_debug(dev->dbit, dev->dptr, "All Multicast\n");
-  if (dev->promiscuous)
+    }
+  if (dev->promiscuous) {
     sim_debug(dev->dbit, dev->dptr, "Promiscuous\n");
+    }
   }
 
 /* setup BPF filters and other fields to minimize packet delivery */