diff --git a/I1401/i1401_iq.c b/I1401/i1401_iq.c
index 7832a15b..f487f61d 100644
--- a/I1401/i1401_iq.c
+++ b/I1401/i1401_iq.c
@@ -93,8 +93,8 @@ ind[IN_INC] = 0;                                        /* clear inq clear */
 switch (mod) {                                          /* case on mod */
 
     case BCD_R:                                         /* input */
-/*      if (ind[IN_INR] == 0)                         */
-/*          return SCPE_OK;                           *//* return if no req */
+//      if (ind[IN_INR] == 0)
+//          return SCPE_OK;                             /* return if no req */
         ind[IN_INR] = 0;                                /* clear req */
         inq_puts ("[Enter]\r\n");                       /* prompt */
         for (i = 0; M[BS] != (BCD_GRPMRK + WM); i++) {  /* until GM + WM */
diff --git a/I1620/i1620_defs.h b/I1620/i1620_defs.h
index 51e2303f..a48882c7 100644
--- a/I1620/i1620_defs.h
+++ b/I1620/i1620_defs.h
@@ -248,6 +248,7 @@ enum opcodes {
 #define DEFIO_ACTIVATE(uptr) sim_activate (uptr, (uptr)->wait)
 #define DEFIO_ACTIVATE_ABS(uptr) sim_activate_abs (uptr, (uptr)->wait)
 #endif
+
 /* Function declarations */
 
 t_stat cpuio_set_inp (uint32 op, uint32 dev, UNIT *uptr);
diff --git a/PDP11/pdp11_rq.c b/PDP11/pdp11_rq.c
index 33d8d5bf..dec1cbba 100644
--- a/PDP11/pdp11_rq.c
+++ b/PDP11/pdp11_rq.c
@@ -2032,7 +2032,7 @@ if (bc & 1)                                             /* odd byte cnt? */
     return (ST_HST | SB_HST_OC);
 if (bc & 0xF0000000)                                    /* 'reasonable' bc? */
     return (ST_CMD | I_BCNT);
-/* if (lbn & 0xF0000000) return (ST_CMD | I_LBN);     *//* 'reasonable' lbn? */
+// if (lbn & 0xF0000000) return (ST_CMD | I_LBN);       /* 'reasonable' lbn? */
 if (lbn >= maxlbn) {                                    /* accessing RCT? */
     if (lbn >= (maxlbn + drv_tab[dtyp].rcts))           /* beyond copy 1? */
         return (ST_CMD | I_LBN);                        /* lbn err */
diff --git a/PDP11/pdp11_tq.c b/PDP11/pdp11_tq.c
index b1efd0ee..77383134 100644
--- a/PDP11/pdp11_tq.c
+++ b/PDP11/pdp11_tq.c
@@ -845,8 +845,8 @@ else {                                                  /* valid cmd */
             tq_enqt (&uptr->pktq, pkt);                 /* do later */
             return OK;
             }
-/*      if (tq_cmf[cmd] & MD_CDL)                     *//* clr cch lost? */
-/*          uptr->flags = uptr->flags & ~UNIT_CDL; */
+//      if (tq_cmf[cmd] & MD_CDL)                       /* clr cch lost? */
+//          uptr->flags = uptr->flags & ~UNIT_CDL;
         if ((mdf & MD_CSE) && (uptr->flags & UNIT_SXC)) /* clr ser exc? */
             uptr->flags = uptr->flags & ~UNIT_SXC;
         memset (uptr->results, 0, sizeof (struct tq_req_results)); /* init request state */
diff --git a/PDP11/pdp11_xu.c b/PDP11/pdp11_xu.c
index 907b3df8..14f31104 100644
--- a/PDP11/pdp11_xu.c
+++ b/PDP11/pdp11_xu.c
@@ -1016,8 +1016,8 @@ int32 xu_command(CTLR* xu)
       xu->var->rrlen = xu->var->udb[5];
       xu->var->rxnext = 0;
       xu->var->txnext = 0;
-// xu_dump_rxring(xu);
-// xu_dump_txring(xu);
+//    xu_dump_rxring(xu);
+//    xu_dump_txring(xu);
 
       break;
 
@@ -1200,7 +1200,7 @@ void xu_process_receive(CTLR* xu)
 
   sim_debug(DBG_TRC, xu->dev, "xu_process_receive(), buffers: %d\n", xu->var->rrlen);
 
-/* xu_dump_rxring(xu); *//* debug receive ring */
+// xu_dump_rxring(xu);  /* debug receive ring */
 
   /* process only when in the running state, and host buffers are available */
   if ((state != STATE_RUNNING) || no_buffers)
@@ -1375,7 +1375,7 @@ void xu_process_receive(CTLR* xu)
 
   /* set or clear interrupt, depending on what happened */
   xu_setclrint(xu, 0);
-// xu_dump_rxring(xu); /* debug receive ring */
+// xu_dump_rxring(xu);  /* debug receive ring */
 
 }
 
diff --git a/VAX/vaxmod_defs.h b/VAX/vaxmod_defs.h
index 1e064942..284787c1 100644
--- a/VAX/vaxmod_defs.h
+++ b/VAX/vaxmod_defs.h
@@ -197,7 +197,7 @@ extern t_stat cpu_show_memory (FILE* st, UNIT* uptr, int32 val, CONST void* desc
 
 /* CMCTL registers */
 
-/* #define CMCTLSIZE    (18 << 2)                     *//* 18 registers */
+// #define CMCTLSIZE    (18 << 2)                       /* 18 registers */
 #define CMCTLSIZE       (19 << 2)                       /* KA655X extra reg */
 #define CMCTLBASE       (REGBASE + 0x100)               /* CMCTL addr base */