diff --git a/f/bail.c b/f/bail.c
index 9bb3669ba..41ddb9802 100644
--- a/f/bail.c
+++ b/f/bail.c
@@ -6,7 +6,7 @@
 
 /* u2_bl_bail(): bail out.
 **
-**  Bail codes: 
+**  Bail codes:
 **
 **    c3__exit for normal exit with correct trace
 **    c3__fail for abnormal failure without assumptions
@@ -61,7 +61,7 @@ u2_bl_drop(u2_wire wir_r)
 
 /* u2_bl_error(): simple string error.
 */
-u2_noun 
+u2_noun
 u2_bl_error(u2_wire     wir_r,
             const c3_c* err_c)                                    //  retain
 {
@@ -148,10 +148,10 @@ u2_bi_frag(u2_ray  wir_r,
   } else return c;
 }
 
-/* u2_bi_met(): 
+/* u2_bi_met():
 **
 **   Return the size of (b) in bits, rounded up to
-**   (1 << a_y). 
+**   (1 << a_y).
 **
 **   For example, (a_y == 3) returns the size in bytes.
 */
@@ -192,7 +192,7 @@ u2_bi_byte(u2_ray  wir_r,
 
   return u2_byte(a_w, b);
 }
-        
+
 /* u2_bi_bytes():
 **
 **  Copy bytes (a_w) through (a_w + b_w - 1) from (d) to (c).
@@ -276,7 +276,7 @@ u2_bn_string(u2_ray      wir_r,
   return u2_bl_good(wir_r, u2_rl_string(wir_r, a_c));
 }
 
-/* u2_bn_cell(): 
+/* u2_bn_cell():
 **
 **   Produce the cell [a b].
 */
@@ -343,7 +343,7 @@ u2_bn_list(u2_ray wir_r, ...)
     }
   }
 }
- 
+
 /* u2_bn_molt():
 **
 **   Mutate `som` with a 0-terminated list of axis, noun pairs.
@@ -499,7 +499,7 @@ u2_bn_molt(u2_wire wir_r,
   */
   return _molt_apply(wir_r, som, len_w, pms_m);
 }
-          
+
 /* u2_bn_mp():
 **
 **   Copy the GMP integer [a] into an atom.
@@ -538,8 +538,8 @@ u2_bn_nock(u2_ray wir_r, u2_noun bus, u2_noun fol)
 /* u2_bn_mang():
 **
 **   Kick a gate, substituting axes with nouns.
-**   
-**   Caller retains arguments; function transfers result. 
+**
+**   Caller retains arguments; function transfers result.
 */
 u2_noun
 u2_bn_mang(u2_wire wir_r,
@@ -561,7 +561,7 @@ u2_bn_mang(u2_wire wir_r,
 /* u2_bn_hook():
 **
 **   Execute hook from core.
-*/ 
+*/
 u2_noun
 u2_bn_hook(u2_wire     wir_r,
            u2_noun     cor,
@@ -621,7 +621,7 @@ u2_bn_cook(u2_wire     wir_r,
   }
 }
 
-/* u2_bn_mong(): 
+/* u2_bn_mong():
 **
 **   Call by gate and sample (new convention).
 **   Caller retains `gat`, transfers `sam`.
@@ -692,7 +692,7 @@ u2_bn_wait(u2_wire     wir_r,
 #endif
 }
 
-/* u2_bn_qual(): 
+/* u2_bn_qual():
 **
 **   Produce the quadruple [a b c d].
 */
@@ -706,7 +706,7 @@ u2_bn_qual(u2_ray  wir_r,
   return u2_bl_good(wir_r, u2_rl_qual(wir_r, a, b, c, d));
 }
 
-/* u2_bn_quil(): 
+/* u2_bn_quil():
 **
 **   Produce the quintuple [a b c d].
 */
@@ -725,7 +725,7 @@ u2_bn_quil(u2_ray  wir_r,
 **
 **   Create an atomic string from a list of bytes.
 */
-u2_noun 
+u2_noun
 u2_bn_tape(u2_ray  wir_r,
            u2_list lit)
 {
@@ -796,7 +796,7 @@ u2_bn_heximal(u2_ray  wir_r,
   return u2_bn_mp(wir_r, mp);
 }
 
-/* u2_bn_trel(): 
+/* u2_bn_trel():
 **
 **   Produce the triple [a b c].
 */
@@ -849,7 +849,7 @@ u2_bn_slaq(u2_wire wir_r,
 **   Factor `a` as a cell `[b c].
 */
 void
-u2_bi_cell(u2_wire  wir_r, 
+u2_bi_cell(u2_wire  wir_r,
            u2_noun  a,
            u2_noun* b,
            u2_noun* c)
@@ -864,7 +864,7 @@ u2_bi_cell(u2_wire  wir_r,
 **   Factor `a` as a quadruple `[b c d e]`.
 */
 void
-u2_bi_qual(u2_wire  wir_r, 
+u2_bi_qual(u2_wire  wir_r,
            u2_noun  a,
            u2_noun* b,
            u2_noun* c,
diff --git a/f/benx.c b/f/benx.c
index 410bc919d..8bd8091fd 100644
--- a/f/benx.c
+++ b/f/benx.c
@@ -3,7 +3,7 @@
 ** This file is in the public domain.
 */
 #include "all.h"
- 
+
 /* u2_bx_boot(): reset the performance log.
 */
 void
@@ -27,7 +27,7 @@ u2_bx_boot(u2_ray wir_r)
     u2_benx_be(bex_r, c3_w, wax_w) = 0;
 
     u2_benx_be(bex_r, c3_w, lif_w) = u2_soup_liv_w(u2_rail_rut_r(wir_r));
-    u2_benx_be(bex_r, c3_w, bos_w) = 
+    u2_benx_be(bex_r, c3_w, bos_w) =
       u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r)));
 
     {
@@ -57,7 +57,7 @@ u2_bx_boot(u2_ray wir_r)
 u2_bean
 u2_bx_post(u2_ray   wir_r,
            u2_noun* zat,
-           u2_noun* zof, 
+           u2_noun* zof,
            c3_d*    sap_d,
            c3_d*    cop_d,
            c3_d*    det_d,
@@ -86,10 +86,10 @@ u2_bx_post(u2_ray   wir_r,
 
     *wax_w = u2_benx_at(bex_r, wax_w);
 
-    *viq_ws = u2_soup_liv_w(u2_rail_rut_r(wir_r)) - 
+    *viq_ws = u2_soup_liv_w(u2_rail_rut_r(wir_r)) -
               u2_benx_be(bex_r, c3_w, lif_w);
 
-    *zor_ws = u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r))) - 
+    *zor_ws = u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r))) -
               u2_benx_be(bex_r, c3_w, bos_w);
 
     sec_w = u2_benx_at(bex_r, sec_w);
@@ -131,7 +131,7 @@ u2_bx_step(u2_ray wir_r)
 
 /* u2_bx_copy(): note `cop` copied words.
 */
-void 
+void
 u2_bx_copy(u2_ray wir_r,
            c3_w   cop_w)
 {
@@ -146,7 +146,7 @@ u2_bx_copy(u2_ray wir_r,
 
 /* u2_bx_dent(): note `det` identical comparisons.
 */
-void 
+void
 u2_bx_dent(u2_ray wir_r,
            c3_w   det_w)
 {
@@ -179,7 +179,7 @@ u2_bx_sink(u2_ray wir_r)
 
 /* u2_bx_rise(): go shallower (return) in the C stack.
 */
-void 
+void
 u2_bx_rise(u2_ray wir_r)
 {
   u2_ray bex_r;
@@ -232,7 +232,7 @@ u2_bx_spot(u2_ray  wir_r,
   {
     u2_rl_lose(wir_r, hod);
     return;
-  } 
+  }
   else {
     u2_noun sud = u2_rl_take(bas_r, hod);
 
@@ -255,7 +255,7 @@ u2_bx_spot_out(u2_ray wir_r)
        (0 == (bas_r = u2_wire_bas_r(wir_r))) )
   {
     return;
-  } 
+  }
   else {
     u2_noun zat = u2_benx_at(bex_r, zat);
 
@@ -279,15 +279,15 @@ u2_bx_bean_ent(u2_ray  wir_r,
   {
     u2_rl_lose(wir_r, hod);
     return;
-  } 
+  }
   else {
     u2_noun naz = u2_rl_uniq(wir_r, hod);
 
     u2_rl_lose(wir_r, hod);
-    if ( u2_none != naz ) { 
+    if ( u2_none != naz ) {
       u2_noun zof = u2_rc
         (bas_r, u2_rx(bas_r, naz), u2_rx(bas_r, u2_benx_at(bex_r, zof)));
-      
+
       if ( u2_none != zof ) {
         u2_rl_lose(bas_r, u2_benx_at(bex_r, zof));
         u2_benx_at(bex_r, zof) = zof;
@@ -305,7 +305,7 @@ u2_bx_bean_out(u2_ray wir_r)
        (0 == (bas_r = u2_wire_bas_r(wir_r))) )
   {
     return;
-  } 
+  }
   else {
     u2_noun zof = u2_benx_at(bex_r, zof);
 
@@ -369,7 +369,7 @@ _print_wall(u2_noun wal,
     wal = u2_t(wal);
   }
 }
-            
+
 /* u2_bx_loaf(): print debug loaf.
 */
 void
@@ -468,7 +468,7 @@ _bx_print_superdecimal_d(c3_d d)
     printf(":");
     _bx_print_superdecimal_w((c3_w)(d & 0xffffffffULL));
   }
-  else { 
+  else {
     _bx_print_superdecimal_w((c3_w) d);
   }
 }
@@ -485,13 +485,13 @@ u2_bx_show(u2_ray wir_r)
 
   if ( u2_no == u2_bx_post(wir_r, &zat,
                                   &zof,
-                                  &sap_d, 
-                                  &cop_d, 
-                                  &det_d, 
-                                  &jax_d, 
-                                  &use_d, 
-                                  &wax_w, 
-                                  &viq_ws, 
+                                  &sap_d,
+                                  &cop_d,
+                                  &det_d,
+                                  &jax_d,
+                                  &use_d,
+                                  &wax_w,
+                                  &viq_ws,
                                   &zor_ws,
                                   &ums_w) )
   {
@@ -506,7 +506,7 @@ u2_bx_show(u2_ray wir_r)
         // u2_noun h_zat = u2_h(zat);
         u2_noun t_zat = u2_t(zat);
 
-        printf("place: %d.%d:%d.%d\n", 
+        printf("place: %d.%d:%d.%d\n",
             u2_h(u2_h(t_zat)), u2_t(u2_h(t_zat)),
             u2_h(u2_t(t_zat)), u2_t(u2_t(t_zat)));
         u2_rl_lose(bas_r, zat);
@@ -554,7 +554,7 @@ u2_bx_show(u2_ray wir_r)
         _bx_print_superdecimal_ws(zor_ws);
         printf(" held");
       }
-      
+
       printf("; ");
       _bx_print_superdecimal_w(ums_w);
       printf(" ms>\n");
diff --git a/f/cash.c b/f/cash.c
index 46fb6eed5..1d9e872b8 100644
--- a/f/cash.c
+++ b/f/cash.c
@@ -1,5 +1,5 @@
 /* f/cash.c
-** 
+**
 ** This file is in the public domain.
 */
 #include "all.h"
@@ -221,7 +221,7 @@ _cs_find_1(u2_rail ral_r,
 
           if ( u2_slot_is_a(tol_r) &&
               (sel_m == u2_slot_a_sel(tol_r)) &&
-              (u2_yes == _cs_find_sap(ral_r, tol_r, sam)) ) 
+              (u2_yes == _cs_find_sap(ral_r, tol_r, sam)) )
           {
             return u2_slot_a_pro(tol_r);
           }
@@ -231,7 +231,7 @@ _cs_find_1(u2_rail ral_r,
         while ( j_w != i_w );
 
         return u2_none;
-      } 
+      }
       else {
         lot_r = u2_slot_b_sid_i(lot_r, i_w);
         sif_w += 4;
@@ -277,17 +277,17 @@ _cs_find_2(u2_rail ral_r,
 
           if ( u2_slot_is_a(tol_r) &&
               (sel_m == u2_slot_a_sel(tol_r)) &&
-              (u2_yes == _cs_find_sap_cell(ral_r, tol_r, a, b)) ) 
+              (u2_yes == _cs_find_sap_cell(ral_r, tol_r, a, b)) )
           {
             return u2_slot_a_pro(tol_r);
           }
-          
+
           j_w = ((j_w + 1) & 15);
         }
         while ( j_w != i_w );
 
         return u2_none;
-      } 
+      }
       else {
         lot_r = u2_slot_b_sid_i(lot_r, i_w);
         sif_w += 4;
@@ -337,13 +337,13 @@ _cs_find_2m(u2_rail     ral_r,
           {
             return u2_slot_a_pro(tol_r);
           }
-          
+
           j_w = ((j_w + 1) & 15);
         }
         while ( j_w != i_w );
 
         return u2_none;
-      } 
+      }
       else {
         lot_r = u2_slot_b_sid_i(lot_r, i_w);
         sif_w += 4;
@@ -394,13 +394,13 @@ _cs_find_3(u2_rail ral_r,
           {
             return u2_slot_a_pro(tol_r);
           }
-          
+
           j_w = ((j_w + 1) & 15);
         }
         while ( j_w != i_w );
 
         return u2_none;
-      } 
+      }
       else {
         lot_r = u2_slot_b_sid_i(lot_r, i_w);
         sif_w += 4;
@@ -452,13 +452,13 @@ _cs_find_4(u2_rail ral_r,
           {
             return u2_slot_a_pro(tol_r);
           }
-          
+
           j_w = ((j_w + 1) & 15);
         }
         while ( j_w != i_w );
 
         return u2_none;
-      } 
+      }
       else {
         lot_r = u2_slot_b_sid_i(lot_r, i_w);
         sif_w += 4;
@@ -626,7 +626,7 @@ _cs_save_b(u2_rail ral_r,
 
     if ( u2_slot_gunk_is_coll(gun_w) ) {
       if ( (u2_slot_b_rag(lot_r) >= u2_tune_cash_hi) &&
-           (sif_w != 32) ) 
+           (sif_w != 32) )
       {
         _cs_more_b(ral_r, lot_r, sif_w);
         goto top;
@@ -660,10 +660,10 @@ _cs_save_b(u2_rail ral_r,
         return u2_no;
       }
     } else {
-      u2_bean ave = _cs_save_in(ral_r, 
-                                u2_slot_b_sid_i(lot_r, i_w), 
-                                key_w, 
-                                (sif_w + 4), 
+      u2_bean ave = _cs_save_in(ral_r,
+                                u2_slot_b_sid_i(lot_r, i_w),
+                                key_w,
+                                (sif_w + 4),
                                 sel_m, sap, pro);
       if ( u2_yes == ave ) {
         u2_slot_b_rag(lot_r) += 1;
@@ -685,7 +685,7 @@ _cs_save_a(u2_rail ral_r,
            u2_noun pro)                                           //  retain
 {
   if ( (sel_m == u2_slot_a_sel(lot_r)) &&
-       (u2_yes == _cs_find_sap(ral_r, lot_r, u2_h(sap)) ) ) 
+       (u2_yes == _cs_find_sap(ral_r, lot_r, u2_h(sap)) ) )
   {
     if ( u2_no == u2_sing(pro, u2_slot_a_pro(lot_r)) ) {
       u2_rz(ral_r, u2_slot_a_pro(lot_r));
@@ -850,8 +850,8 @@ u2_cs_save_qual(u2_rail ral_r,
                 u2_noun d,                                        //  retain
                 u2_noun pro)                                      //  transfer
 {
-  u2_noun sam = u2_rq(ral_r, u2_rx(ral_r, a), 
-                             u2_rx(ral_r, b), 
+  u2_noun sam = u2_rq(ral_r, u2_rx(ral_r, a),
+                             u2_rx(ral_r, b),
                              u2_rx(ral_r, c),
                              u2_rx(ral_r, d));
   u2_noun ret = u2_cs_save(ral_r, lot_r, sel_m, sam, pro);
diff --git a/f/chad.c b/f/chad.c
index 0f69ae2eb..c327f2c3c 100644
--- a/f/chad.c
+++ b/f/chad.c
@@ -1,5 +1,5 @@
 /* f/chad.c
-** 
+**
 ** This file is in the public domain.
 */
 #include "all.h"
@@ -124,7 +124,7 @@ u2_ch_find_cell(u2_ray  cad_r,
           continue;
         }
       }
-      else if ( u2_yes == u2_dust(nom) && 
+      else if ( u2_yes == u2_dust(nom) &&
                (u2_yes == u2_sing(hed, u2_h(nom))) &&
                (u2_yes == u2_sing(tal, u2_t(nom))) )
       {
@@ -186,7 +186,7 @@ u2_ch_find_mixt(u2_ray      cad_r,
           continue;
         }
       }
-      else if ( u2_yes == u2_dust(nom) && 
+      else if ( u2_yes == u2_dust(nom) &&
                (u2_yes == u2_sing_c(hed_c, u2_h(nom))) &&
                (u2_yes == u2_sing(tal, u2_t(nom))) )
       {
@@ -244,7 +244,7 @@ _ch_save(u2_ray  ral_r,
           *u2_at(per_r, u2_loom_pear, nam) = nim;
           *u2_at(per_r, u2_loom_pear, val) = vil;
           return u2_yes;
-        } 
+        }
         else {
           off_w += 4;
           continue;
@@ -321,7 +321,7 @@ u2_ch_save_cell(u2_ray  ral_r,
 {
   u2_weak nim, vil;
 
-  if ( u2_none == (nim = u2_rl_cell(ral_r, u2_rl_ice(ral_r, hed), 
+  if ( u2_none == (nim = u2_rl_cell(ral_r, u2_rl_ice(ral_r, hed),
                                            u2_rl_ice(ral_r, tal))) )
   {
     return u2_none;
@@ -354,7 +354,7 @@ u2_ch_save_mixt(u2_ray      ral_r,
 {
   u2_weak nim, vil;
 
-  if ( u2_none == (nim = u2_rl_cell(ral_r, u2_rl_string(ral_r, hed_c), 
+  if ( u2_none == (nim = u2_rl_cell(ral_r, u2_rl_string(ral_r, hed_c),
                                            u2_rl_ice(ral_r, tal))) )
   {
     return u2_none;
diff --git a/f/coal.c b/f/coal.c
index 59e0aed8f..fb4d18977 100644
--- a/f/coal.c
+++ b/f/coal.c
@@ -54,7 +54,7 @@
 
       if ( buf_c ) u2_cr_bytes(0, met_w, (c3_y*)(buf_c + pos_w), hut);
       return (pos_w + met_w);
-    } 
+    }
     else {
       c3_w met_w  = u2_cr_met(3, u2h(hut));
       c3_w end_w  = _cf_path_1(buf_c, pos_w, u2t(hut));
@@ -76,8 +76,8 @@
   }
 
 u2_noun
-u2_cf_path(c3_c* top_c, 
-           c3_c* ext_c, 
+u2_cf_path(c3_c* top_c,
+           c3_c* ext_c,
            u2_noun tah)
 {
   c3_w    top_w = strlen(top_c);
@@ -95,7 +95,7 @@ u2_cf_path(c3_c* top_c,
   pos_w = _cf_path_1(buf_c, pos_w, tah);
 
   if ( ext_c ) {
-    buf_c[pos_w++] = '.'; 
+    buf_c[pos_w++] = '.';
     strncpy(buf_c + pos_w, ext_c, buf_w - pos_w);
   } else {
     buf_c[pos_w] = 0;
@@ -107,7 +107,7 @@ u2_cf_path(c3_c* top_c,
   u2_cz(tah);
   return pas;
 }
-  
+
 /* u2_cf_flat_date(): date for `pas`.  Unix time * 10^6, or 0.
 */
 c3_d
@@ -169,7 +169,7 @@ u2_cf_flat_load(u2_noun mod,
     }
     close(fid_i);
 
-    fil = u2_ci_bytes(fln_w, (c3_y *)fil_c); 
+    fil = u2_ci_bytes(fln_w, (c3_y *)fil_c);
     free(fil_c);
 
     return fil;
@@ -178,7 +178,7 @@ u2_cf_flat_load(u2_noun mod,
 
 /* u2_cf_list(): list all the files in directory `pas`.  List of cask.
 */
-u2_noun 
+u2_noun
 u2_cf_list(u2_noun pas)
 {
   c3_c* pas_c = u2_cr_string(pas);
@@ -200,7 +200,7 @@ u2_cf_list(u2_noun pas)
         if ( readdir_r(dir_d, &ent_n, &out_n) != 0 ) {
           perror(pas_c);
           return u2_cm_bail(c3__fail);
-        } 
+        }
         else if ( !out_n ) {
           break;
         }
@@ -213,10 +213,10 @@ u2_cf_list(u2_noun pas)
   }
 }
 
-/* u2_cf_flat_save(): save `som` as `mod` at `pas`. 
+/* u2_cf_flat_save(): save `som` as `mod` at `pas`.
 */
 u2_bean
-u2_cf_flat_save(u2_noun mod, 
+u2_cf_flat_save(u2_noun mod,
                 u2_noun pas,
                 u2_noun som)
 {
@@ -241,7 +241,7 @@ u2_cf_flat_save(u2_noun mod,
     fil_y = malloc(fln_w);
     u2_cr_bytes(0, fln_w, fil_y, som);
     u2_cz(som);
- 
+
     if ( fln_w != write(fid_i, fil_y, fln_w) ) {
       return u2_no;
     }
@@ -297,7 +297,7 @@ u2_ci_tape(const c3_c* txt_c)
 
 /* u2_cr_string(): `a` as malloced C string.
 */
-c3_c* 
+c3_c*
 u2_cr_string(u2_atom a)
 {
   c3_w  met_w = u2_cr_met(3, a);
@@ -310,7 +310,7 @@ u2_cr_string(u2_atom a)
 
 /* u2_cr_tape(): `a`, a list of bytes, as malloced C string.
 */
-c3_y* 
+c3_y*
 u2_cr_tape(u2_noun a)
 {
   u2_noun b;
@@ -432,7 +432,7 @@ u2_cm_rind()
   //  Save the old stack and actions.
   //
   u2_kite_tax(kit_r) = u2k(u2_wire_tax(u2_Wire));
-  u2_kite_don(kit_r) = u2k(u2_wrac_at(u2_Wire, duz.don)); 
+  u2_kite_don(kit_r) = u2k(u2_wrac_at(u2_Wire, duz.don));
 
   return u2_at_cord(u2_kite_buf_r(kit_r), c3_wiseof(jmp_buf));
 }
@@ -451,7 +451,7 @@ _cm_jack(u2_noun old, u2_noun nuw)
     if ( u2ft(cur) == old ) {
       u2z(old);
       u2ft(cur) = u2_nul;
-      
+
       return nuw;
     } else {
       cur = u2ft(cur);
@@ -468,7 +468,7 @@ _cm_depth(u2_noun old, u2_noun nuw)
   c3_w dep_w = 0;
 
   while ( nuw != old ) {
-    c3_assert(u2_yes == u2du(nuw)); 
+    c3_assert(u2_yes == u2du(nuw));
     nuw = u2t(nuw);
 
     dep_w++;
@@ -479,14 +479,14 @@ _cm_depth(u2_noun old, u2_noun nuw)
 
 /* u2_cm_wail(): produce and reset the local trace, without bailing.
 */
-u2_noun 
+u2_noun
 u2_cm_wail()
 {
   u2_ray  kit_r = u2_wire_kit_r(u2_Wire);
   u2_noun old   = u2_kite_tax(u2_wire_kit_r(u2_Wire));
   u2_noun nuw   = u2_wire_tax(u2_Wire);
   u2_noun jaq;
- 
+
   jaq = _cm_jack(old, nuw);
 
   // c3_assert(1 == u2_rl_refs(u2_Wire, old));
@@ -539,7 +539,7 @@ u2_cm_bail(c3_l how_l)
       u2_wire_kit_r(u2_Wire) = u2_kite_par_r(kit_r);
       u2_rl_rfree(u2_Wire, kit_r);
     }
-    
+
     // Longjmp with the how-trace pair.  XX: no workee with 64-bit nouns.
     //
     {
@@ -581,7 +581,7 @@ u2_cm_bowl(u2_noun how)
       u2_wire_kit_r(u2_Wire) = u2_kite_par_r(kit_r);
       u2_rl_rfree(u2_Wire, kit_r);
     }
-    
+
     // Longjmp with the how-trace pair.  XX: no workee with 64-bit nouns.
     //
     {
@@ -647,7 +647,7 @@ u2_cm_mark_internal()
 {
   return u2_wr_mark(u2_Wire);
 }
- 
+
 /* u2_cm_trac(): extract and clear stack trace.
 */
 u2_noun
@@ -695,7 +695,7 @@ u2_cm_foul(const c3_c* err_c)
   u2_cm_bean(u2_ci_string(err_c));
   fprintf(stderr, "foul: %s\n", err_c);
 
-  return u2_bl_error(u2_Wire, err_c); 
+  return u2_bl_error(u2_Wire, err_c);
 }
 
 /* u2_cn_cell(): produce the cell `[a b]`.
@@ -847,7 +847,7 @@ u2_ckd_by_get(u2_noun a, u2_noun b)
 
   u2_cz(a); u2_cz(b);
   if ( u2_no == u2_cr_du(c) ) {
-    u2_cz(c); 
+    u2_cz(c);
     return u2_none;
   } else {
     u2_noun pro = u2_ct(u2t(c));
@@ -866,7 +866,7 @@ u2_ckd_by_got(u2_noun a, u2_noun b)
 
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -895,7 +895,7 @@ u2_ckd_by_gas(u2_noun a, u2_noun b)
   u2_cz(a); u2_cz(b);
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -909,7 +909,7 @@ u2_ckd_in_gas(u2_noun a, u2_noun b)
   u2_cz(a); u2_cz(b);
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -923,7 +923,7 @@ u2_ckd_by_has(u2_noun a, u2_noun b)
   u2_cz(a); u2_cz(b);
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -937,7 +937,7 @@ u2_ckd_in_has(u2_noun a, u2_noun b)
   u2_cz(a); u2_cz(b);
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -951,7 +951,7 @@ u2_ckd_in_tap(u2_noun a, u2_noun b)
   u2_cz(a); u2_cz(b);
   if ( u2_none == c ) {
     return u2_cm_bail(c3__exit);
-  } 
+  }
   else return c;
 }
 
@@ -1018,7 +1018,7 @@ u2_ckd_in_tap(u2_noun a, u2_noun b)
   }
 
   u2_noun                                                         //  transfer
-  _cue_internal(u2_wire wir_r, 
+  _cue_internal(u2_wire wir_r,
                 u2_atom a)                                        //  retain
   {
     u2_ray  t_r = u2_cs_make(wir_r);
diff --git a/f/dash.c b/f/dash.c
index 8e6b1d1fd..a8bd74758 100644
--- a/f/dash.c
+++ b/f/dash.c
@@ -22,11 +22,11 @@ _ds_mate(u2_noun xip,                                             //  retain
     u2_noun axe = u2_h(pet);
     u2_noun led = u2_t(pet);
     u2_noun ruc = u2_frag(axe, cor);
- 
+
     if ( (u2_none == ruc) || (u2_no == _ds_mate(led, ruc)) ) {
       return u2_no;
     }
-  } 
+  }
 
   return u2_sing(bat, u2_h(cor));
 }
@@ -83,7 +83,7 @@ _ds_good_cop(u2_noun cop)
   while ( i_w < 4 ) {
     if ( u2_yes == u2_stud(cop) ) {
       return u2_yes;
-    } 
+    }
     if ( u2_no == u2_stud(u2_h(cop)) ) {
       return u2_no;
     }
@@ -160,7 +160,7 @@ _ds_chip(u2_wire wir_r,
   }
   else {
     u2_noun dac, bat, pet;
- 
+
     /* disc: dac
     */
     {
@@ -206,7 +206,7 @@ _ds_chip(u2_wire wir_r,
     {
       if ( _0 == bud_clu ) {
         pet = u2_nul;
-      } 
+      }
       else {
         while ( _10 == u2_h(bud_clu) ) {
           bud_clu = u2_t(u2_t(bud_clu));
@@ -240,7 +240,7 @@ _ds_chip(u2_wire wir_r,
   }
 }
 
-/* u2_ds_mine(): 
+/* u2_ds_mine():
 **
 **   Register and/or save core.
 */
@@ -272,7 +272,7 @@ u2_ds_mine(u2_wire wir_r,
         bat_xip = u2_h(u2_t(xip));
 
 #if 0
-        {  
+        {
           c3_c* xip_c = u2_ho_cstring(xip);
 
           fprintf(stderr, "!%s - lent %d\r\n", xip_c, u2_ckb_lent(gop));
@@ -282,7 +282,7 @@ u2_ds_mine(u2_wire wir_r,
         gop = u2_cs_save(bas_r, u2_wire_des_r(wir_r), 0, bat_xip, gop);
         {
           u2_noun poo = u2_cs_find(bas_r, u2_wire_des_r(wir_r), 0, bat_xip);
-         
+
           {
             _ds_scan(poo, cor);
           }
@@ -345,7 +345,7 @@ u2_ds_look(u2_wire     wir_r,
 
   if ( u2_none == xip ) {
     return u2_none;
-  } 
+  }
   else {
     c3_l axe_l = _1;
 
diff --git a/f/host.c b/f/host.c
index 1d0a3fd32..29b7afec2 100644
--- a/f/host.c
+++ b/f/host.c
@@ -143,7 +143,7 @@ _cs_save(u2_ho_cash* cas_s,
           per_p->tag = som;
           per_p->ptr_v = ptr_v;
           return;
-        } 
+        }
         else {
           off_w += 4;
           continue;
@@ -313,7 +313,7 @@ _ho_mop_seal(c3_c *buf_c, u2_noun mek)
   }
   else {
     len_w = _ho_mop_term(buf_c, mek);
-    
+
     return len_w;
   }
 }
@@ -357,7 +357,7 @@ u2_ho_cstring(u2_noun xip)                                        //  retain
   return cos_c;
 }
 
-/* u2_ho_boot(): 
+/* u2_ho_boot():
 **
 **   Boot driver system.  Note that all chips and
 **   tools are considered permanent between reboots.
@@ -368,7 +368,7 @@ _ho_boot(u2_ho_hangar *hag)
   _cs_init(&hag->bad_s);
 }
 
-/* _ho_down(): 
+/* _ho_down():
 **
 **   Release all resources in `hag`.
 */
@@ -378,7 +378,7 @@ _ho_down(u2_ho_hangar *hag)
   _cs_free(&hag->bad_s);
 }
 
-/* u2_ho_push(): 
+/* u2_ho_push():
 **
 **   Push a driver hangar (corresponding to a jet shed).
 */
@@ -435,7 +435,7 @@ u2_ho_warn(const c3_c* fil_c,
 /* _ho_abstract(): compute 31-bit jet axis in core battery.
 */
 static c3_l
-_ho_abstract(u2_noun xip,                                         //  retain 
+_ho_abstract(u2_noun xip,                                         //  retain
              const c3_c *fcs_c)                                   //  retain
 {
   if ( *fcs_c == '.' ) {
@@ -443,8 +443,8 @@ _ho_abstract(u2_noun xip,                                         //  retain
     c3_l axe_l = 0;
 
     sscanf(fcs_c+1, "%llu", &axe_d);
-    if ( axe_d >> 32ULL || 
-         ((1 << 31) & (axe_l = (c3_w)axe_d)) || 
+    if ( axe_d >> 32ULL ||
+         ((1 << 31) & (axe_l = (c3_w)axe_d)) ||
          (axe_l < 2) )
     {
       u2_ho_warn_here();
@@ -535,7 +535,7 @@ _ho_explore_dummy(u2_rail     ral_r,
     abort();
   }
   dry_d->cos_c = cos_c;
-  dry_d->sub_d = 0; 
+  dry_d->sub_d = 0;
   dry_d->xip = xip;
   if ( !(dry_d->fan_j = malloc(sizeof(u2_ho_jet))) ) {
     abort();
@@ -588,9 +588,9 @@ _ho_explore_parent(u2_rail ral_r,
       for ( i_w = 0; par_d->sub_d[i_w].cos_c; i_w++ ) {
 #if 0
         if ( (u2_none == par_d->sub_d[i_w].xip) &&
-             !strcmp(cos_c, par_d->sub_d[i_w].cos_c) ) 
+             !strcmp(cos_c, par_d->sub_d[i_w].cos_c) )
 #else
-        if ( !strcmp(cos_c, par_d->sub_d[i_w].cos_c) ) 
+        if ( !strcmp(cos_c, par_d->sub_d[i_w].cos_c) )
 #endif
         {
           u2_ho_driver *dry_d = &par_d->sub_d[i_w];
@@ -698,15 +698,15 @@ _ho_conquer(u2_rail ral_r,
 **   Report result of jet test.  `had` is native; `sof` is nock.
 */
 void
-u2_ho_test(u2_wire    wir_r, 
+u2_ho_test(u2_wire    wir_r,
            u2_ho_jet* jet_j,
            u2_noun    cor,                                         //  retain
            u2_noun    sof,                                         //  retain
            u2_noun    had)                                         //  retain
 {
-  if ( (u2_none == cor) || 
+  if ( (u2_none == cor) ||
        ((u2_none == had) && (u2_none == sof)) ||
-       (u2_none == jet_j->xip) ) 
+       (u2_none == jet_j->xip) )
   {
     return;
   } else {
@@ -734,7 +734,7 @@ u2_ho_test(u2_wire    wir_r,
       //
       c3_assert(0);
 #if 0
-     
+
       {
         u2_noun gen;
 
@@ -776,7 +776,7 @@ u2_ho_test(u2_wire    wir_r,
       msg_c = "nice";
     }
 
-    if ( strcmp("nice", msg_c) ) 
+    if ( strcmp("nice", msg_c) )
     {
       fprintf(stderr, "%s: %8x: %s\n", msg_c, mug_w, cos_c);
     }
@@ -824,7 +824,7 @@ _ho_run(u2_ray      wir_r,
       **
       ** u2_b functions may not be used.  Trace must be correct.
       **
-      ** Pro: lite jets minimize invocation latency. 
+      ** Pro: lite jets minimize invocation latency.
       ** Pro: no garbage collection is required on error.
       **
       ** Con: manual programming of large functions in lite mode is difficult.
@@ -832,7 +832,7 @@ _ho_run(u2_ray      wir_r,
       {
         u2_noun hoc = u2_rx(wir_r, u2_wire_tax(wir_r));
         u2_ray  kit_r = u2_wire_kit_r(wir_r);
-        u2_noun ret; 
+        u2_noun ret;
 
         u2_wire_kit_r(wir_r) = 0;
         u2_tx_glu_bit(wir_r, u2_no);
@@ -886,7 +886,7 @@ _ho_run(u2_ray      wir_r,
           }
           u2_bl_done(wir_r, kit_r);
           ret = u2_none;
-        } 
+        }
         else {
           u2_tx_glu_bit(wir_r, u2_no);
           ret = jet_j->fun_f(wir_r, cor);
@@ -934,7 +934,7 @@ u2_ho_use(u2_ray     wir_r,
         pro = u2_rl_save(wir_r, fun_m, key, pro);
       }
       u2_rz(wir_r, key);
-    } 
+    }
     else {
       //  printf("use %s\n", u2_ho_cstring(jet_j->xip));
       pro = u2_cn_nock(u2_rx(wir_r, cor), u2_rx(wir_r, fol));
@@ -944,7 +944,7 @@ u2_ho_use(u2_ray     wir_r,
     if ( !(jet_j->sat_s & u2_jet_test) ) {
       pro = _ho_run(wir_r, jet_j, cor);
     }
-    else { 
+    else {
       // c3_assert(!"equivalence testing is currently disabled");
 #if 1
       u2_noun sof;
@@ -967,7 +967,7 @@ u2_ho_use(u2_ray     wir_r,
             nex_w =  u2_soup_liv_w(u2_rail_rut_r(wir_r));
 
             if ( nex_w > liv_w ) {
-              fprintf(stderr, "leak: %d, %s\n", 
+              fprintf(stderr, "leak: %d, %s\n",
                   (nex_w - liv_w), u2_ho_cstring(jet_j->xip));
 
               c3_assert(0);
@@ -1008,7 +1008,7 @@ u2_ho_kick(u2_ray   wir_r,
            u2_noun  cor,                                          //  retain
            u2_atom  axe)                                          //  retain
 {
-  u2_noun    fol; 
+  u2_noun    fol;
   u2_ho_jet* jet_j;
 
   if ( u2_none == (fol = u2_frag(axe, cor)) ) {
@@ -1052,14 +1052,14 @@ u2_ho_kicq(u2_ray   wir_r,
       *pon = 2;
       u2z(hoe);
       return pro;
-    } 
+    }
     else if ( u2h(hoe) == c3__need ) {
       pro = u2k(u2t(hoe));
 
       *pon = 1;
       u2z(hoe);
       return pro;
-    } 
+    }
     else if ( u2h(hoe) == c3__fail ) {
       fprintf(stderr, "\r\nfail from %s\n", u2_ho_cstring(xip));
       // u2_err(u2_Wire, "hhoe", u2h(hoe));
diff --git a/f/loom.c b/f/loom.c
index 1f78be1de..00db83b4c 100644
--- a/f/loom.c
+++ b/f/loom.c
@@ -19,7 +19,7 @@ _loom_stop(c3_i sig)
 }
 
 static c3_i
-_loom_sigsegv_handler(void* adr_v, c3_i ser_i) 
+_loom_sigsegv_handler(void* adr_v, c3_i ser_i)
 {
   if ( ser_i ) {
     c3_w*    bas_w = (c3_w*)(void *)(U2_OS_LoomBase);
@@ -39,7 +39,7 @@ _loom_sigsegv_handler(void* adr_v, c3_i ser_i)
     LoomChem[pag_w].mug_e = 0;
 
     for ( ceg_u = &LoomSegmentA; ceg_u; ceg_u = ceg_u->nex_u ) {
-      if ( (pag_w >= ceg_u->bot_w) && 
+      if ( (pag_w >= ceg_u->bot_w) &&
            (win_w=(pag_w - ceg_u->bot_w)) < ceg_u->len_w )
       {
         if ( win_w >= ceg_u->pgs_w ) {
@@ -55,7 +55,7 @@ _loom_sigsegv_handler(void* adr_v, c3_i ser_i)
 
     if ( -1 == mprotect((void *)(bas_w + (pag_w << LoomPageWords)),
                         (1 << (LoomPageWords + 2)),
-                        (PROT_READ | PROT_WRITE)) ) 
+                        (PROT_READ | PROT_WRITE)) )
     {
       perror("mprotect");
       exit(1);
@@ -108,8 +108,8 @@ _loom_deploy(void)
 
   for ( ceg_u = &LoomSegmentA; ceg_u; ceg_u = ceg_u->nex_u ) {
     u2_chef chf_u;
-    c3_w i_w; 
- 
+    c3_w i_w;
+
     /* Load control segment.
     */
     {
@@ -119,8 +119,8 @@ _loom_deploy(void)
       }
       c3_assert(chf_u.bot_w == ceg_u->bot_w);
 
-      if ( u2_no == _loom_read(ceg_u->ctl_i, 
-                               (u2_chit*) &LoomChem[ceg_u->bot_w], 
+      if ( u2_no == _loom_read(ceg_u->ctl_i,
+                               (u2_chit*) &LoomChem[ceg_u->bot_w],
                                chf_u.pgs_w) )
       {
         printf("deploy no b\n");
@@ -153,7 +153,7 @@ _loom_deploy(void)
                                res_w << (LoomPageWords + 2),
                                PROT_READ,
                                (MAP_ANON | MAP_FIXED | MAP_PRIVATE),
-                               -1, 0) ) 
+                               -1, 0) )
         {
           printf("deploy no d\n");
           return u2_no;
@@ -180,16 +180,16 @@ _loom_deploy(void)
            LoomChem[pag_w].mug_e )
       {
         printf("mismatched mug at page %d\n", pag_w);
-        printf("actual data: %x\n", 
+        printf("actual data: %x\n",
             (0x3fffffff & u2_mug_words(gaw_w, (1 << LoomPageWords))));
         printf("control mug: %x\n", LoomChem[pag_w].mug_e);
 
-        printf("deploy no f\n"); 
+        printf("deploy no f\n");
         return u2_no;
       }
     }
 #if 0
-    fprintf(stderr, "load: %s bot_w %x, pgs_w %d, num_w %d\n",  
+    fprintf(stderr, "load: %s bot_w %x, pgs_w %d, num_w %d\n",
             ceg_u->nam_c, chf_u.bot_w, chf_u.pgs_w, num_w);
 #endif
   }
@@ -222,9 +222,9 @@ u2_loom_save(c3_w ent_w)
 
   for ( ceg_u = &LoomSegmentA; ceg_u; ceg_u = ceg_u->nex_u ) {
     u2_chef chf_u;
-    c3_w i_w; 
+    c3_w i_w;
     c3_w num_w = 0;
-  
+
     chf_u.ent_w = ent_w;
     chf_u.ven_w = LoomVersion;
     chf_u.bot_w = ceg_u->bot_w;
@@ -239,7 +239,7 @@ u2_loom_save(c3_w ent_w)
 
         if ( u2_page_tref == LoomChem[pag_w].lif_e ) {
           lseek(ceg_u->dat_i, (i_w << (LoomPageWords + 2)), SEEK_SET);
-          if ( u2_no == _loom_write(ceg_u->dat_i, 
+          if ( u2_no == _loom_write(ceg_u->dat_i,
                                     mem_w,
                                     (1 << LoomPageWords)) ) {
             fprintf(stderr, "save no a\r\n");
@@ -255,7 +255,7 @@ u2_loom_save(c3_w ent_w)
     }
 
 #if 0
-    fprintf(stderr, "save: %s bot_w %x, pgs_w %d, num_w %d\r\n",  
+    fprintf(stderr, "save: %s bot_w %x, pgs_w %d, num_w %d\r\n",
                      ceg_u->nam_c, chf_u.bot_w, chf_u.pgs_w, num_w);
 #endif
 
@@ -266,7 +266,7 @@ u2_loom_save(c3_w ent_w)
       fprintf(stderr, "save no b\r\n");
       return u2_no;
     }
-    if ( u2_no == _loom_write(ceg_u->ctl_i, 
+    if ( u2_no == _loom_write(ceg_u->ctl_i,
                               (u2_chit*)(LoomChem + ceg_u->bot_w),
                               ceg_u->pgs_w) ) {
       fprintf(stderr, "save no c\r\n");
@@ -275,7 +275,7 @@ u2_loom_save(c3_w ent_w)
 
     /* Catch future changes.
     */
-    if ( -1 == mprotect(((c3_w*)U2_OS_LoomBase) + 
+    if ( -1 == mprotect(((c3_w*)U2_OS_LoomBase) +
                           (ceg_u->bot_w << LoomPageWords),
                         (ceg_u->len_w << (LoomPageWords + 2)),
                         PROT_READ) )
@@ -296,13 +296,13 @@ u2_loom_save(c3_w ent_w)
     fdatasync(ceg_u->ctl_i);
     fdatasync(ceg_u->dat_i);
 #elif defined(U2_OS_osx)
-    fcntl(ceg_u->ctl_i, F_FULLFSYNC); 
+    fcntl(ceg_u->ctl_i, F_FULLFSYNC);
     fcntl(ceg_u->dat_i, F_FULLFSYNC);
 #elif defined(U2_OS_bsd)
     fsync(ceg_u->ctl_i);
     fsync(ceg_u->dat_i);
 #else
-    #error "port: datasync" 
+    #error "port: datasync"
 #endif
   }
 
@@ -498,9 +498,9 @@ _frag_word(c3_w a_w, u2_noun b)
       if ( u2_no == u2_dust(b) ) {
         return u2_none;
       }
-      else { 
+      else {
         c3_w x = (1 & (a_w >> (dep_w - 1)));
-        
+
         b = *u2_at_ray(1 + x + u2_pom_a(b));
         dep_w--;
       }
@@ -520,9 +520,9 @@ _frag_deep(c3_w a_w, u2_noun b)
     if ( u2_no == u2_dust(b) ) {
       return u2_none;
     }
-    else { 
+    else {
       c3_w x = (1 & (a_w >> (dep_w - 1)));
-      
+
       b = *u2_at_ray(1 + x + u2_pom_a(b));
       dep_w--;
     }
@@ -573,7 +573,7 @@ u2_frag(u2_atom a,
   else {
     if ( !u2_dog_is_pug(a) ) {
       return u2_none;
-    } 
+    }
     else {
       return _frag_phat(a, b);
 #if 0
@@ -583,7 +583,7 @@ u2_frag(u2_atom a,
 
       c3_assert(u2_none != b);
       u2_mp(a_mp, a);
-     
+
       for ( i_w=0; i_w < fol_w; i_w++ ) {
         c3_w lum_w = (fol_w - (i_w + 1));
 
@@ -629,7 +629,7 @@ _mug_both(c3_w lef_w, c3_w rit_w)
   c3_w bot_w = _mug_fnv(lef_w ^ _mug_fnv(rit_w));
   c3_w out_w = _mug_out(bot_w);
 
-  if ( 0 != out_w ) { 
+  if ( 0 != out_w ) {
     return out_w;
   }
   else {
@@ -660,7 +660,7 @@ _mug_bytes(c3_w off_w, c3_w nby_w, c3_y* byt_y)
   c3_w has_w = _mug_bytes_in(off_w, nby_w, byt_y);
   c3_w out_w = _mug_out(has_w);
 
-  if ( 0 != out_w ) { 
+  if ( 0 != out_w ) {
     return out_w;
   }
   else {
@@ -766,7 +766,7 @@ _mug_words(c3_w off_w, c3_w nwd_w, const c3_w* wod_w)
   c3_w has_w = _mug_words_in(off_w, nwd_w, wod_w);
   c3_w out_w = _mug_out(has_w);
 
-  if ( 0 != out_w ) { 
+  if ( 0 != out_w ) {
     return out_w;
   }
   else {
@@ -780,7 +780,7 @@ _mug_words_buf(c3_w off_w, c3_w nwd_w, u2_noun veb)
   c3_w has_w = _mug_words_in_buf(off_w, nwd_w, veb);
   c3_w out_w = _mug_out(has_w);
 
-  if ( 0 != out_w ) { 
+  if ( 0 != out_w ) {
     return out_w;
   }
   else {
@@ -881,8 +881,8 @@ u2_mug_qual(u2_noun a,
             u2_noun c,
             u2_noun d)
 {
-  return u2_mug_both(u2_mug(a), 
-                     u2_mug_both(u2_mug(b), 
+  return u2_mug_both(u2_mug(a),
+                     u2_mug_both(u2_mug(b),
                                  u2_mug_both(u2_mug(c), u2_mug(d))));
 }
 
@@ -911,8 +911,8 @@ _sing_x(u2_noun a,
 #endif
 
     if ( u2_fly_is_atom(a) ) {
-      if ( !u2_fly_is_atom(b) || 
-           u2_fly_is_cat(a) || 
+      if ( !u2_fly_is_atom(b) ||
+           u2_fly_is_cat(a) ||
            u2_fly_is_cat(b) )
       {
         return u2_no;
@@ -935,7 +935,7 @@ _sing_x(u2_noun a,
             c3_w i_w;
 
             for ( i_w = 0; i_w < w_rez; i_w++ ) {
-              if ( (*u2_at_pug_buf(a, i_w)) != 
+              if ( (*u2_at_pug_buf(a, i_w)) !=
                    (*u2_at_pug_buf(b, i_w)) )
               {
                 return u2_no;
@@ -1012,7 +1012,7 @@ u2_sing(u2_noun a,
     }
     if ( FUN && (X > 10) ) {
       // printf("mug %x, X %d\n", u2_mug(a), X);
-      // if ( u2_mug(a) == 0xe5c2279 ) 
+      // if ( u2_mug(a) == 0xe5c2279 )
       // { printf("a %x, b %x\n", a, b); c3_assert(0); }
     }
     return sit;
@@ -1021,7 +1021,7 @@ u2_sing(u2_noun a,
 }
 
 u2_bean
-u2_fing(u2_noun a, 
+u2_fing(u2_noun a,
         u2_noun b)
 {
   return (a == b) ? u2_yes : u2_no;
@@ -1037,7 +1037,7 @@ u2_sing_cell(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_sing(p, u2_h(b)), 
+                u2_and(u2_sing(p, u2_h(b)),
                        u2_sing(q, u2_t(b))));
 }
 u2_bean
@@ -1046,7 +1046,7 @@ u2_fing_cell(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_fing(p, u2_h(b)), 
+                u2_and(u2_fing(p, u2_h(b)),
                        u2_fing(q, u2_t(b))));
 }
 
@@ -1060,7 +1060,7 @@ u2_sing_mixt(const c3_c* p_c,
              u2_noun     b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_sing_c(p_c, u2_h(b)), 
+                u2_and(u2_sing_c(p_c, u2_h(b)),
                        u2_sing(q, u2_t(b))));
 }
 u2_bean
@@ -1069,7 +1069,7 @@ u2_fing_mixt(const c3_c* p_c,
              u2_noun     b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_sing_c(p_c, u2_h(b)), 
+                u2_and(u2_sing_c(p_c, u2_h(b)),
                        u2_fing(q, u2_t(b))));
 }
 
@@ -1084,7 +1084,7 @@ u2_sing_trel(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_sing(p, u2_h(b)), 
+                u2_and(u2_sing(p, u2_h(b)),
                        u2_sing_cell(q, r, u2_t(b))));
 }
 u2_bean
@@ -1094,7 +1094,7 @@ u2_fing_trel(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_fing(p, u2_h(b)), 
+                u2_and(u2_fing(p, u2_h(b)),
                        u2_fing_cell(q, r, u2_t(b))));
 }
 
@@ -1110,7 +1110,7 @@ u2_sing_qual(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_sing(p, u2_h(b)), 
+                u2_and(u2_sing(p, u2_h(b)),
                        u2_sing_trel(q, r, s, u2_t(b))));
 }
 u2_bean
@@ -1121,7 +1121,7 @@ u2_fing_qual(u2_noun p,
              u2_noun b)
 {
   return u2_and(u2_dust(b),
-                u2_and(u2_fing(p, u2_h(b)), 
+                u2_and(u2_fing(p, u2_h(b)),
                        u2_fing_trel(q, r, s, u2_t(b))));
 }
 
@@ -1303,7 +1303,7 @@ u2_as_p(u2_noun  a,
     *c = nux;
     return u2_yes;
   }
-  else return u2_no; 
+  else return u2_no;
 }
 
 /* u2_as_pq():
@@ -1318,7 +1318,7 @@ u2_as_pq(u2_noun  a,
 {
   u2_noun nux;
 
-  if ( (u2_yes == u2_as_p(a, b, &nux)) && 
+  if ( (u2_yes == u2_as_p(a, b, &nux)) &&
        (u2_yes == u2_as_cell(nux, c, d)) )
   {
     return u2_yes;
@@ -1339,7 +1339,7 @@ u2_as_pqr(u2_noun  a,
 {
   u2_noun nux;
 
-  if ( (u2_yes == u2_as_p(a, b, &nux)) && 
+  if ( (u2_yes == u2_as_p(a, b, &nux)) &&
        (u2_yes == u2_as_trel(nux, c, d, e)) )
   {
     return u2_yes;
@@ -1361,7 +1361,7 @@ u2_as_pqrs(u2_noun  a,
 {
   u2_noun nux;
 
-  if ( (u2_yes == u2_as_p(a, b, &nux)) && 
+  if ( (u2_yes == u2_as_p(a, b, &nux)) &&
        (u2_yes == u2_as_qual(nux, c, d, e, f)) )
   {
     return u2_yes;
@@ -1425,7 +1425,7 @@ u2_as_trel(u2_noun a,
   if ( (u2_yes == u2_as_cell(a, b, &guf)) &&
        (u2_yes == u2_as_cell(guf, c, d)) ) {
     return u2_yes;
-  } 
+  }
   else {
     return u2_no;
   }
@@ -1451,10 +1451,10 @@ u2_st(u2_noun a)
   return (a == u2_none) && (u2_yes == u2_dust(a)) ? a : u2_t(a);
 }
 
-/* u2_met(): 
+/* u2_met():
 **
 **   Return the size of (b) in bits, rounded up to
-**   (1 << a_y). 
+**   (1 << a_y).
 **
 **   For example, (a_y == 3) returns the size in bytes.
 */
@@ -1482,7 +1482,7 @@ u2_met(c3_y    a_y,
     else {
       gal_w = (*u2_at_pug_len(b)) - 1;
       daz_w = (*u2_at_pug_buf(b, gal_w));
-    } 
+    }
 
     switch ( a_y ) {
       case 0:
@@ -1578,7 +1578,7 @@ u2_byte(c3_w    a_w,
     }
   }
 }
-        
+
 /* u2_bytes():
 **
 **  Copy bytes (a_w) through (a_w + b_w - 1) from (d) to (c).
@@ -1716,7 +1716,7 @@ u2_chop(c3_g    met_g,
   c3_assert(u2_fly_is_atom(src));
 
   if ( met_g < 5 ) {
-    c3_w san_w = (1 << met_g); 
+    c3_w san_w = (1 << met_g);
     c3_w mek_w = ((1 << san_w) - 1);
     c3_w baf_w = (fum_w << met_g);
     c3_w bat_w = (tou_w << met_g);
@@ -1750,7 +1750,7 @@ u2_chop(c3_g    met_g,
       c3_w wut_w = (tou_w + i_w) << hut_g;
 
       for ( j_w = 0; j_w < san_w; j_w++ ) {
-        *u2_at_ray(dst_r + wut_w + j_w) ^= 
+        *u2_at_ray(dst_r + wut_w + j_w) ^=
             ((wuf_w + j_w) >= len_w)
               ? 0
               : u2_atom_word(src, wuf_w + j_w);
diff --git a/f/nock.c b/f/nock.c
index 7e9841378..f30f530b1 100644
--- a/f/nock.c
+++ b/f/nock.c
@@ -1,5 +1,5 @@
 /* f/nock.c
-** 
+**
 ** This file is in the public domain.
 */
 #include "all.h"
@@ -88,7 +88,7 @@ _nock_pray_cool(u2_noun gof)                                      //  transfer
 
     if ( 0 == pon ) {
       return mog;
-    } 
+    }
     else if ( 1 == pon ) {
       return u2_cm_bowl(u2nc(c3__need, mog));
     }
@@ -111,19 +111,19 @@ _nock_hint(u2_noun  zep,                                          //  transfer
   u2_noun pro;
 
   switch ( zep ) {
-    default: u2z(zep); u2z(hod); 
+    default: u2z(zep); u2z(hod);
              return pon ? _nock_mool(bus, nex, pon) : _nock_cool(bus, nex);
 
     case c3__lose:
-    case c3__yelp: 
-    case c3__bean: 
+    case c3__yelp:
+    case c3__bean:
     case c3__mean:
     case c3__spot: {
       u2_noun tax = u2_wire_tax(u2_Wire);
       u2_noun tac = u2nc(zep, hod);
 
 #if 0
-      if ( c3__spot == zep ) { 
+      if ( c3__spot == zep ) {
         printf("spot %d/%d : %d/%d\n",
                u2h(u2h(u2t(hod))),
                u2t(u2h(u2t(hod))),
@@ -153,7 +153,7 @@ _nock_hint(u2_noun  zep,                                          //  transfer
 
     case c3__mine: {
       pro = pon ? _nock_mool(bus, nex, pon) : _nock_cool(bus, nex);
-     
+
       if ( !pon || (u2_no != *pon) ) {
         u2_tx_sys_bit(u2_Wire, u2_yes);
         pro = u2_ds_mine(u2_Wire, hod, pro);
@@ -192,7 +192,7 @@ _nock_hint(u2_noun  zep,                                          //  transfer
         u2_tx_sys_bit(u2_Wire, u2_yes);
         pro = u2_ds_mine(u2_Wire, hod, pro);
         u2_tx_sys_bit(u2_Wire, u2_no);
-      } 
+      }
       u2z(hod);
       return pro;
     }
@@ -210,8 +210,8 @@ _nock_hint(u2_noun  zep,                                          //  transfer
           return pro;
         } else {
           u2_noun sav;
-            
-          pro = pon ? _nock_mool(u2k(bus), u2k(nex), pon) 
+
+          pro = pon ? _nock_mool(u2k(bus), u2k(nex), pon)
                     : _nock_cool(u2k(bus), u2k(nex));
 
           if ( !pon || (u2_no != *pon) ) {
@@ -297,7 +297,7 @@ _nock_cool(u2_noun bus,
     if ( u2_no == u2du(fol) ) {
       return u2_cm_bail(c3__exit);
     }
-    else { 
+    else {
       hib = u2fh(fol);
       gal = u2ft(fol);
     }
@@ -415,7 +415,7 @@ _nock_cool(u2_noun bus,
 
       case 7: {
         u2_noun b_gal, c_gal;
-      
+
         u2_cx_cell(gal, &b_gal, &c_gal);
         {
           u2_noun bod = _nock_cool(bus, u2k(b_gal));
@@ -431,7 +431,7 @@ _nock_cool(u2_noun bus,
 
       case 8: {
         u2_noun b_gal, c_gal;
-     
+
         // c3_assert(!"got 8 (nock)!");
         u2_cx_cell(gal, &b_gal, &c_gal);
         {
@@ -448,11 +448,11 @@ _nock_cool(u2_noun bus,
 
       case 9: {
         u2_noun b_gal, c_gal;
-      
+
         u2_cx_cell(gal, &b_gal, &c_gal);
         if ( u2_no == u2ud(b_gal) ) {
           return u2_cm_bail(c3__exit);
-        } 
+        }
         else {
           u2_noun seb = _nock_cool(bus, u2k(c_gal));
           u2_weak xip;
@@ -462,11 +462,11 @@ _nock_cool(u2_noun bus,
 
           if ( u2_none != xip ) {
             u2_noun pro = u2_ho_kick(u2_Wire, xip, seb, b_gal);
-             
+
             u2_tx_sys_bit(u2_Wire, u2_no);
             if ( u2_none == pro ) {
               return u2_cm_bail(c3__exit);
-            } 
+            }
             else {
               u2z(seb); u2z(fol);
               return pro;
@@ -489,7 +489,7 @@ _nock_cool(u2_noun bus,
 
       case 10: {
         u2_noun p_gal, q_gal;
-      
+
         u2_cx_cell(gal, &p_gal, &q_gal);
         {
           u2_noun zep, hod, nex, pro;
@@ -502,7 +502,7 @@ _nock_cool(u2_noun bus,
             zep = u2k(b_gal);
             hod = _nock_cool(u2k(bus), u2_ct(c_gal));
             nex = u2_ct(d_gal);
-          } 
+          }
           else {
             u2_noun b_gal = p_gal;
             u2_noun c_gal = q_gal;
@@ -514,7 +514,7 @@ _nock_cool(u2_noun bus,
 
           u2_cz(fol);
           pro = _nock_hint(zep, hod, bus, nex, 0);
-          return pro; 
+          return pro;
         }
       }
 
@@ -535,7 +535,7 @@ _nock_cool(u2_noun bus,
 /* nock_mool(): fast internal mink interface.  Arguments transferred.
 */
 u2_noun
-_nock_mool(u2_noun  bus, 
+_nock_mool(u2_noun  bus,
            u2_noun  fol,
            u2_kode* pon)
 {
@@ -551,7 +551,7 @@ _nock_mool(u2_noun  bus,
       u2z(bus); u2z(fol);
       return u2_cm_wail();
     }
-    else { 
+    else {
       hib = u2fh(fol);
       gal = u2ft(fol);
     }
@@ -618,10 +618,10 @@ _nock_mool(u2_noun  bus,
         }
         else {
           u2_noun neb;
-          
+
           neb = _nock_mool(bus, u2k(gal), pon);
           u2z(fol);
-          if ( 0 != *pon ) { return neb; } 
+          if ( 0 != *pon ) { return neb; }
 
           bus = u2k(u2fh(neb));
           fol = u2k(u2ft(neb));
@@ -686,7 +686,7 @@ _nock_mool(u2_noun  bus,
         }
         else {
           u2_noun tys, nex;
-          
+
           tys = _nock_mool(u2k(bus), u2k(b_gal), pon);
           if ( 0 != *pon ) { u2z(bus); u2z(fol); return tys; }
 
@@ -711,16 +711,16 @@ _nock_mool(u2_noun  bus,
 
       case 7: {
         u2_noun b_gal, c_gal;
-      
+
         if ( u2_no == u2_cr_cell(gal, &b_gal, &c_gal) ) {
           *pon = 2; u2z(bus); u2z(fol); return u2_cm_wail();
         }
         else {
           u2_noun bod, nex;
-          
+
           bod = _nock_mool(bus, u2k(b_gal), pon);
           if ( 0 != *pon ) { u2z(fol); return bod; }
-   
+
           nex = u2k(c_gal);
           u2z(fol);
 
@@ -757,18 +757,18 @@ _nock_mool(u2_noun  bus,
 
       case 9: {
         u2_noun b_gal, c_gal;
-      
+
         if ( (u2_no == u2_cr_cell(gal, &b_gal, &c_gal)) ||
              (u2_no == u2ud(b_gal)) )
         {
           *pon = 2; u2z(bus); u2z(fol); return u2_cm_wail();
-        } 
+        }
         else {
           u2_noun seb;
           u2_weak xip;
 
           seb = _nock_mool(bus, u2k(c_gal), pon);
-          u2z(fol); 
+          u2z(fol);
           if ( 0 != *pon ) { return seb; }
 
           u2_tx_sys_bit(u2_Wire, u2_yes);
@@ -777,15 +777,15 @@ _nock_mool(u2_noun  bus,
 
           if ( u2_none != xip ) {
             u2_noun pro;
-            
+
             u2_tx_sys_bit(u2_Wire, u2_yes);
             pro = u2_ho_kicq(u2_Wire, xip, seb, b_gal, pon);
             u2_tx_sys_bit(u2_Wire, u2_no);
-            u2z(seb); 
+            u2z(seb);
 
             if ( u2_none == pro ) {
               *pon = 2; return u2_cm_wail();
-            } 
+            }
             else return pro;
           }
           else {
@@ -804,7 +804,7 @@ _nock_mool(u2_noun  bus,
 
       case 10: {
         u2_noun p_gal, q_gal;
-      
+
         if ( u2_no == u2_cr_cell(gal, &p_gal, &q_gal) ) {
           *pon = 2; u2z(bus); u2z(fol); return u2_cm_wail();
         }
@@ -817,12 +817,12 @@ _nock_mool(u2_noun  bus,
             u2_noun d_gal = q_gal;
 
             hod = _nock_mool(u2k(bus), u2_ct(c_gal), pon);
-            if ( 0 != *pon ) { u2z(fol); return hod; } 
+            if ( 0 != *pon ) { u2z(fol); return hod; }
 
             zep = u2k(b_gal);
             nex = u2k(d_gal);
             u2z(fol);
-          } 
+          }
           else {
             u2_noun b_gal = p_gal;
             u2_noun c_gal = q_gal;
@@ -855,7 +855,7 @@ _nock_mool(u2_noun  bus,
 /* nock_molg(): function call (mung) with kode.  Arguments transferred.
 */
 static u2_noun
-_nock_molg(u2_noun  gat, 
+_nock_molg(u2_noun  gat,
            u2_noun  sam,
            u2_kode* pon)
 {
@@ -893,11 +893,11 @@ _nock_moog(u2_noun bus,
 
         c3_assert(0);
         u2z(hoe);
-      } 
+      }
       else if ( u2h(hoe) == c3__need ) {
         res = u2nc(1, u2k(u2t(hoe)));
         u2z(hoe);
-      } 
+      }
       else {
         u2_noun wac = u2k(u2h(hoe));
 
@@ -915,7 +915,7 @@ _nock_moog(u2_noun bus,
   return res;
 }
 
-/* u2_cn_nock(): external nock interface. 
+/* u2_cn_nock(): external nock interface.
 */
 u2_noun
 u2_cn_nock(u2_noun bus,
@@ -934,7 +934,7 @@ u2_cn_nock(u2_noun bus,
   u2_tx_glu_bit(u2_Wire, bit);
 
   return pro;
-} 
+}
 
 /* u2_cn_mink(): logical virtual nock.
 */
@@ -968,7 +968,7 @@ u2_cn_mink(u2_noun bus,
   u2_tx_glu_bit(u2_Wire, bit);
 
   return res;
-} 
+}
 
 /* u2_cn_moch(): blind mink with empty fly.
 */
@@ -980,7 +980,7 @@ u2_cn_moch(u2_noun bus,
 
   return u2_cn_mink(bus, fol, fly);
 }
- 
+
 /*** Deprecated:
 ***/
 
diff --git a/f/rail.c b/f/rail.c
index fd6f73e33..cd8ad17f4 100644
--- a/f/rail.c
+++ b/f/rail.c
@@ -1,5 +1,5 @@
 /* f/rail.c
-** 
+**
 ** This file is in the public domain.
 */
 #include "all.h"
@@ -97,9 +97,9 @@ u2_rl_leap(u2_ray ral_r,
     }
   }
 
-  /*    Before: 
+  /*    Before:
   * 0           rut   hat                                  1GB
-  * |            |     |                                     | 
+  * |            |     |                                     |
   * |-------------------########-----------------------------|
   * |                           |      |                     |
   *                            cap    mat
@@ -108,7 +108,7 @@ u2_rl_leap(u2_ray ral_r,
   * |                   |
   * |--------------------#######-----------------------------|
   * |                         / |                            |
-  *                        hat rut 
+  *                        hat rut
   */
   {
     u2_ray cap_r = u2_rail_cap_r(ral_r);
@@ -122,7 +122,7 @@ u2_rl_leap(u2_ray ral_r,
     {
       u2_rail_cap_r(ral_r) = hat_r;
       u2_rail_hat_r(ral_r) = cap_r;
-      u2_rail_mat_r(ral_r) = hat_r; 
+      u2_rail_mat_r(ral_r) = hat_r;
       u2_rail_rut_r(ral_r) = cap_r;
       u2_rail_hip_m(ral_r) = hop_m;
     }
@@ -153,15 +153,15 @@ u2_rl_leap(u2_ray ral_r,
 void
 u2_rl_fall(u2_ray ral_r)
 {
-  /*    Before: 
+  /*    Before:
   * 0           rut   hat                                  1GB
-  * |            |     |                                     | 
+  * |            |     |                                     |
   * |-------------------########-----------------------------|
   * |                           |      |                     |
   *                            cap    mat
   *//*  After:
   * 0      mat        cap                                  1GB
-  * |       |          |                                     | 
+  * |       |          |                                     |
   * |-------------------###############----------------------|
   * |                                  |      |              |
   *                                   hat    rut
@@ -170,7 +170,7 @@ u2_rl_fall(u2_ray ral_r)
     u2_ray mat_r = u2_rail_mat_r(ral_r);
     u2_ray hat_r = u2_rail_hat_r(ral_r);
     u2_ray pik_r = mat_r;
-   
+
     u2_rail_cap_r(ral_r) = hat_r;
     u2_rail_hat_r(ral_r) = mat_r;
 
@@ -183,7 +183,7 @@ u2_rl_fall(u2_ray ral_r)
 /* u2_rl_leap_part():
 **
 **   Reverse and split rail, inserting partition of size `num/dem`
-**   plus `tip`. 
+**   plus `tip`.
 **
 **   Returns partition rail, `aux_r`.
 */
@@ -221,9 +221,9 @@ u2_rl_leap_part(u2_ray ral_r,
     }
   }
 
-  /*    Before: 
+  /*    Before:
   * 0           rut   hat
-  * |            |     |            
+  * |            |     |
   * |-------------^-----##########################------$----|
   * |                                             |      |
   *                                              cap    mat
@@ -300,7 +300,7 @@ u2_rl_fall_part(u2_ray ral_r,
   /*
   * Initially:
   * 0           rut   hat
-  * |            |     |            
+  * |            |     |
   * |-------------^-----##########################------$----|
   * |                                             |      |
   *                                              cap    mat
@@ -314,7 +314,7 @@ u2_rl_fall_part(u2_ray ral_r,
   * Main rail, later:
   *
   * 0                              rut hat
-  * |                               |   | 
+  * |                               |   |
   * |--------------------------------^---####----$-----------|
   * |                                        |    |
   *                                         cap  mat
@@ -329,7 +329,7 @@ u2_rl_fall_part(u2_ray ral_r,
   * Auxiliary rail, later:
   *
   * 0                 rut  hat
-  * |                  |    | 
+  * |                  |    |
   * |-------------------^----###-----------------------------|
   * |                           |                 |
   *                            cap               mat
@@ -337,14 +337,14 @@ u2_rl_fall_part(u2_ray ral_r,
   * On return, assimilate style A (right, not supported):
   *
   * 0           rut          hat
-  * |            |            |            
+  * |            |            |
   * |-------------^------------###################------$----|
   * |                                             |      |
   *                                              cap    mat
   * On return, compose style B (wrong, not supported):
   *
   * 0           rut   hat
-  * |            |     |            
+  * |            |     |
   * |-------------^-------------------------------------$----|
   * |                   |                                |
   *                    cap                              mat
@@ -363,7 +363,7 @@ u2_rl_fall_part(u2_ray ral_r,
 
 /* _rl_bloq_make():
 **
-**  Install a liquid block at `box_r`, with size `siz_w` and 
+**  Install a liquid block at `box_r`, with size `siz_w` and
 **  use count `use_w`.
 */
 static void
@@ -421,11 +421,11 @@ _rl_free_select(c3_w siz_w)
 **  Attach the bloq at `box_r` to the appropriate free list.
 */
 static void
-_rl_bloq_attach(u2_ray ral_r, 
+_rl_bloq_attach(u2_ray ral_r,
                 u2_ray box_r)
 {
   c3_w   siz_w = u2_rail_box_siz(box_r);
-  c3_w   sel_w = _rl_free_select(siz_w); 
+  c3_w   sel_w = _rl_free_select(siz_w);
   u2_ray sop_r = u2_rail_rut_r(ral_r);
   u2_ray fre_r = u2_soup_fre_r(sop_r, sel_w);
 
@@ -448,7 +448,7 @@ _rl_bloq_detach(u2_ray ral_r,
                 u2_ray box_r)
 {
   c3_w   siz_w = u2_rail_box_siz(box_r);
-  c3_w   sel_w = _rl_free_select(siz_w); 
+  c3_w   sel_w = _rl_free_select(siz_w);
   u2_ray sop_r = u2_rail_rut_r(ral_r);
   u2_ray pre_r = u2_rail_hut_pre(box_r);
   u2_ray nex_r = u2_rail_hut_nex(box_r);
@@ -464,7 +464,7 @@ _rl_bloq_detach(u2_ray ral_r,
   }
 }
 
-/* _rl_live_grab(): 
+/* _rl_live_grab():
 */
 #ifdef U2_PROFILE_MEMORY
   static void
@@ -491,7 +491,7 @@ u2_rl_dump(u2_ray ral_r)
     c3_w i_w;
     c3_w tot_w;
     c3_w rag_w;
-   
+
     printf("soup dump:\n");
     tot_w = 0;
 
@@ -507,7 +507,7 @@ u2_rl_dump(u2_ray ral_r)
 
         if ( siz_w < min_w ) {
           min_w = siz_w;
-        } 
+        }
         if ( siz_w > max_w ) {
           max_w = siz_w;
         }
@@ -519,14 +519,14 @@ u2_rl_dump(u2_ray ral_r)
 
       if ( num_w != 0 ) {
         printf("  list %d, num %d, min %d, max %d, kb %d.%d.%d\n",
-                  i_w, num_w, min_w, max_w, 
+                  i_w, num_w, min_w, max_w,
                   ((all_w * 4) >> 20),
                   ((all_w * 4) >> 10) % 1024,
                   ((all_w * 4) % 1024));
       }
     }
     rag_w = HalfSize -
-           ( u2_ray_b(u2_rail_hat_r(ral_r)) + 
+           ( u2_ray_b(u2_rail_hat_r(ral_r)) +
              u2_ray_b(u2_rail_cap_r(ral_r)));
     tot_w += rag_w;
 
@@ -535,7 +535,7 @@ u2_rl_dump(u2_ray ral_r)
             ((rag_w * 4) >> 10) % 1024,
             ((rag_w * 4) % 1024));
 
-    printf("soup: cap %x, hat %x, free %d.%d.%d\n", 
+    printf("soup: cap %x, hat %x, free %d.%d.%d\n",
             u2_ray_b(u2_rail_hat_r(ral_r)),
             u2_ray_b(u2_rail_cap_r(ral_r)),
             ((tot_w * 4) >> 20),
@@ -586,7 +586,7 @@ _rl_bloq_grab(u2_ray ral_r,
       u2_loop_signal_memory();
       return 0;
     }
-    else { 
+    else {
       u2_ray box_r;
 
       box_r = u2_rail_hat_r(ral_r);
@@ -613,9 +613,9 @@ _rl_bloq_grab(u2_ray ral_r,
 
         if ( 0 == fre_r ) {
           if ( sel_w < (u2_soup_free_no - 1) ) {
-            sel_w += 1; 
+            sel_w += 1;
             break;
-          } 
+          }
           else {
             /* Nothing in top free list.  Chip away at the hat.
             */
@@ -632,11 +632,11 @@ _rl_bloq_grab(u2_ray ral_r,
               //  XX: integrate with integral wire.
               //
               //  A bunch of testing is needed to make this actually work.
-              // return 0;    
+              // return 0;
               c3_assert(0);
 #endif
             }
-            else { 
+            else {
               box_r = u2_rail_hat_r(ral_r);
               u2_rail_hat_r(ral_r) += siz_w;
 
@@ -652,7 +652,7 @@ _rl_bloq_grab(u2_ray ral_r,
             /* This free block is too small.  Continue searching.
             */
             pfr_r = u2_aftr(fre_r, u2_loom_rail_hut, nex_r);
-          } 
+          }
           else {
             /* We have found a free block of adequate size.  Remove it
             ** from the free list.
@@ -663,10 +663,10 @@ _rl_bloq_grab(u2_ray ral_r,
               u2_ray pre_r = u2_rail_hut_pre(box_r);
               u2_ray nex_r = u2_rail_hut_nex(box_r);
 
-              c3_assert((0 == pre_r) || 
+              c3_assert((0 == pre_r) ||
                         (u2_at_ray(pfr_r) == &u2_rail_hut_nex(pre_r)));
               *u2_at_ray(pfr_r) = nex_r;
-              
+
               if ( 0 != nex_r ) {
                 u2_rail_hut_pre(nex_r) = pre_r;
               }
@@ -686,7 +686,7 @@ _rl_bloq_grab(u2_ray ral_r,
             else {
               c3_assert(u2_rail_box_use(box_r) == 0);
               u2_rail_box_use(box_r) = 1;
-#             ifdef  U2_LEAK_DEBUG            
+#             ifdef  U2_LEAK_DEBUG
                 *u2_at_ray(box_r + 2) = COD_w;
 #             endif
 
@@ -723,14 +723,14 @@ _rl_bloq_free(u2_ray ral_r,
   {
     c3_w   siz_w = u2_rail_box_siz(box_r);
     u2_ray bod_r;
-    
+
     for ( bod_r = (box_r + c3_wiseof(u2_loom_rail_box));
           (bod_r + 1) < (box_r + siz_w);
           bod_r++ )
     {
       *u2_at_ray(bod_r) = 0xdeadbeef;
     }
-  }       
+  }
 
   _rl_live_grab(ral_r, (-1 * u2_rail_hut_siz(box_r)));
 
@@ -868,7 +868,7 @@ u2_rl_gain(u2_ray  ral_r,
 
       if ( c3__rock == hip_m ) {
         u2_ray rut_r = u2_rail_rut_r(ral_r);
-        
+
         if ( som_r > rut_r ) {
           u2_ray box_r = (som_r - c3_wiseof(u2_loom_rail_box));
           c3_w   use_w = u2_rail_box_use(box_r);
@@ -916,7 +916,7 @@ u2_rl_ok(u2_ray  ral_r,
 
       if ( c3__rock == hip_m ) {
         u2_ray rut_r = u2_rail_rut_r(ral_r);
-        
+
         if ( som_r >= rut_r ) {
           u2_ray box_r = (som_r - c3_wiseof(u2_loom_rail_box));
           c3_w   use_w = u2_rail_box_use(box_r);
@@ -955,7 +955,7 @@ u2_rl_refs(u2_ray  ral_r,
 
       if ( c3__rock == hip_m ) {
         u2_ray rut_r = u2_rail_rut_r(ral_r);
-        
+
         if ( som_r >= rut_r ) {
           u2_ray box_r = (som_r - c3_wiseof(u2_loom_rail_box));
           c3_w   use_w = u2_rail_box_use(box_r);
@@ -973,14 +973,14 @@ u2_rl_refs(u2_ray  ral_r,
 **   Lose a reference to (som).  Free it if refcount == 0.
 */
 void
-u2_rl_lose(u2_ray  ral_r, 
+u2_rl_lose(u2_ray  ral_r,
            u2_noun som)
 {
   if ( u2_none == som ) {
     return;
   }
 
-top: 
+top:
   if ( u2_fly_is_dog(som) ) {
     u2_ray som_r = u2_dog_a(som);
     u2_ray hat_r = u2_rail_hat_r(ral_r);
@@ -990,7 +990,7 @@ top:
 
       if ( c3__rock == hip_m ) {
         u2_ray rut_r = u2_rail_rut_r(ral_r);
-        
+
         if ( som_r >= rut_r ) {
           u2_ray box_r = (som_r - c3_wiseof(u2_loom_rail_box));
           c3_w   use_w = u2_rail_box_use(box_r);
@@ -1006,7 +1006,7 @@ top:
               _rl_bloq_free(ral_r, box_r);
               som = t_som;
               goto top;
-            } 
+            }
             else {
               u2_rail_box_use(box_r) = 0;
               _rl_bloq_free(ral_r, box_r);
@@ -1124,7 +1124,7 @@ u2_bean
 u2_rl_open(u2_ray ral_r,
            c3_w   a_w)
 {
-  return 
+  return
     ((a_w + u2_ray_b(u2_rail_hat_r(ral_r)) + u2_ray_b(u2_rail_cap_r(ral_r)))
      >= HalfSize)
     ? u2_no
@@ -1199,7 +1199,7 @@ u2_rl_clear(u2_noun lef,
     */
     if ( u2_dog_is_pom(lef) ) {
       u2_ray ray_lef = u2_dog_a(lef);
-      
+
       /* Is this pom fixed?
       */
       if ( nax_b[ray_lef - bat_r] ) {
@@ -1220,7 +1220,7 @@ u2_rl_clear(u2_noun lef,
             /* Rewrite the pointer.
             */
             *u2_at_pom_hed(lef) = (fes - (pif_w << 2));
-            
+
             /* Swizzle into it.
             */
             _tamp_swizzle(fes, pif_w, bat_r, nax_b);
@@ -1233,7 +1233,7 @@ u2_rl_clear(u2_noun lef,
             /* Rewrite the pointer.
             */
             *u2_at_pom_tel(lef) = (hoz - (pif_w << 2));
-            
+
             /* Swizzle into it.
             */
             _tamp_swizzle(hoz, pif_w, bat_r, nax_b);
@@ -1264,7 +1264,7 @@ u2_rl_tamp(u2_ray  ral_r,
   /* Check that there's actually a root.  If not, tamp is trivial.
   */
   if ( !u2_fly_is_dog(lef) ||
-       (u2_ray_a(u2_dog_a(lef)) != u2_ray_a(net_r)) || 
+       (u2_ray_a(u2_dog_a(lef)) != u2_ray_a(net_r)) ||
        (u2_dog_a(lef) < bat_r) )
   {
     u2_rail_cap_r(ral_r) = net_r;
@@ -1378,7 +1378,7 @@ u2_rl_copy(u2_ray ral_r,
           *u2_at_dog_mug(nov) = mug_w;
           *u2_at_pom_hed(nov) = hed;
           *u2_at_pom_tel(nov) = tel;
-   
+
           c3_assert(u2_no == u2_rl_junior(ral_r, nov));
         }
       }
@@ -1424,9 +1424,9 @@ u2_rl_wash(u2_rail ral_r,
       u2_noun nov = mug_w;
 
       *u2_at_dog_mug(fiz) = *u2_at_dog_mug(nov);
-      // printf("  fixed fiz %x; was %x; now %x\n", 
+      // printf("  fixed fiz %x; was %x; now %x\n",
       //                         fiz, mug_w, *u2_at_dog_mug(fiz));
-    
+
       if ( u2_yes == u2_dust(fiz) ) {
         u2_rl_wash(ral_r, u2_h(fiz));
         u2_rl_wash(ral_r, u2_t(fiz));
@@ -1484,7 +1484,7 @@ top:
       u2_ray box_r  = (som_r - c3_wiseof(u2_loom_rail_box));
       c3_w   use_w  = u2_rail_box_use(box_r);
       c3_ws  use_ws = (c3_ws) use_w;
- 
+
       c3_assert(use_ws != 0);
 
       if ( use_ws < 0 ) {
@@ -1552,7 +1552,7 @@ c3_w
 u2_rl_gc_mark(u2_ray ral_r)
 {
   u2_ray sop_r = u2_rail_rut_r(ral_r);
-  
+
   return u2_cs_mark(ral_r, u2_soup_lot_r(sop_r));
 }
 
@@ -1565,12 +1565,12 @@ u2_rl_drain(u2_ray ral_r)
 {
   if ( c3__rock == u2_rail_hip_m(ral_r) ) {
     u2_ray sop_r = u2_rail_rut_r(ral_r);
-    
+
     u2_cs_lose(ral_r, u2_soup_lot_r(sop_r));
   }
 }
 
-/* u2_rl_gc_sweep(): 
+/* u2_rl_gc_sweep():
 **
 **   Sweep memory, freeing unused blocks.  Match live, save leaked.
 */
@@ -1604,12 +1604,12 @@ u2_rl_gc_sweep(u2_ray ral_r, c3_w sav_w)
     if ( use_ws > 0 ) {
 #   ifdef U2_LEAK_DEBUG
       c3_w cod_w = u2_rail_box_cod(box_r);
-     
+
       if ( 0 == cod_w ) {
-        fprintf(stderr, "\rleak: <unknown> box %x, siz %d, use %d\r\n", 
+        fprintf(stderr, "\rleak: <unknown> box %x, siz %d, use %d\r\n",
                          box_r, siz_w, use_w);
       } else {
-        fprintf(stderr, "\rleak: %s: box %x, siz %d, use %d\r\n", 
+        fprintf(stderr, "\rleak: %s: box %x, siz %d, use %d\r\n",
                          u2_cr_string(cod_w),
                          box_r, siz_w, use_w);
       }
@@ -1617,7 +1617,7 @@ u2_rl_gc_sweep(u2_ray ral_r, c3_w sav_w)
       lek_w += siz_w;
       u2_rail_box_use(box_r) = 0;
       _rl_bloq_free(ral_r, box_r);
-    } 
+    }
     else if ( use_ws < 0 ) {
       // printf("live: box %x, siz %d, use %d\n", box_r, siz_w, use_w);
       use_ws = (0 - use_ws);
@@ -1681,7 +1681,7 @@ u2_rl_take(u2_ray  ral_r,
         *u2_at_dog_mug(nov) = *u2_at_dog_mug(fiz);
         *u2_at_pom_hed(nov) = hed;
         *u2_at_pom_tel(nov) = tel;
- 
+
         c3_assert(u2_no == u2_rl_junior(ral_r, nov));
         return nov;
       }
@@ -1772,7 +1772,7 @@ u2_rl_mint(u2_rail ral_r,
     u2_rl_lose(ral_r, nov);
 
     return _0;
-  } 
+  }
   else if ( len_w == 1 ) {
     c3_w low_w = *u2_at_pug_buf(nov, 0);
 
@@ -1899,7 +1899,7 @@ u2_rl_bytes(u2_ray      ral_r,
       u2_loop_signal_memory();
       return u2_none;
     }
-    else { 
+    else {
       u2_ray nov_r;
       u2_noun nov;
 
@@ -1935,7 +1935,7 @@ u2_rl_bytes(u2_ray      ral_r,
   }
 }
 
-/* u2_rl_cell(): 
+/* u2_rl_cell():
 **
 **   Produce the cell `[a b]`.
 */
@@ -1969,11 +1969,11 @@ u2_rl_cell(u2_ray  ral_r,
       } else {
         if ( (som_n >= mat_n) && (som_n <= hat_n) ) {
           printf("junior y\n");
-          printf("hat %d.%d == %d\n", 
+          printf("hat %d.%d == %d\n",
               u2_ray_a(hat_r), u2_ray_b(hat_r), u2_ray_fnit(hat_r));
-          printf("mat %d.%d == %d\n", 
+          printf("mat %d.%d == %d\n",
               u2_ray_a(mat_r), u2_ray_b(mat_r), u2_ray_fnit(mat_r));
-          printf("som %d.%d == %d\n", 
+          printf("som %d.%d == %d\n",
               u2_ray_a(som_r), u2_ray_b(som_r), u2_ray_fnit(som_r));
         }
       }
@@ -2144,7 +2144,7 @@ u2_rl_molt(u2_rail ral_r,
   */
   return _molt_apply(ral_r, som, len_w, pms_m);
 }
- 
+
 /* u2_rl_molv():
 **
 **   As u2_rl_molt(), by argument pointer.
@@ -2299,7 +2299,7 @@ u2_rl_vint(u2_rail ral_r,
     }
     else if ( u2_yes == u2du(a) ) {
       return u2_none;
-    } 
+    }
     else {
       mpz_t a_mp;
 
@@ -2345,7 +2345,7 @@ u2_rl_words(u2_ray      ral_r,
     if ( u2_no == u2_rl_open(ral_r, (a_w + c3_wiseof(u2_loom_atom))) ) {
       return u2_none;
     }
-    else { 
+    else {
       u2_ray  nov_r;
       u2_noun nov;
 
@@ -2377,7 +2377,7 @@ u2_weak                                                           //  transfer
 u2_rl_find(u2_ray  ral_r,
            u2_mote fun_m,
            u2_noun sam)                                           //  retain
-{ 
+{
   if ( c3__rock != u2_rail_hip_m(ral_r) ) {
     return u2_none;
   } else {
diff --git a/f/shed.c b/f/shed.c
index 57b2a31c7..f44749a36 100644
--- a/f/shed.c
+++ b/f/shed.c
@@ -72,7 +72,7 @@ u2_sh_mine(u2_ray  wir_r,
   if ( 0 == (bas_r = u2_wire_bas_r(wir_r)) ) {
     return cor;
   }
-  else if ( (u2_none == u2_as_cell(cor, &pay, &bat)) || 
+  else if ( (u2_none == u2_as_cell(cor, &pay, &bat)) ||
             (u2_no == u2_dust(bat)) )
   {
     return cor;
@@ -98,7 +98,7 @@ u2_sh_mine(u2_ray  wir_r,
   }
   else {
     u2_noun dac, bot, pet, xop, cyr;
-    
+
     dac = bot = pet = xop = cyr = u2_none;
     while ( 1 ) {
       /* disc: dac
@@ -113,7 +113,7 @@ u2_sh_mine(u2_ray  wir_r,
       */
       {
         if ( u2_no == u2_rl_junior(bas_r, bat) ) {
-          /* We need the jet battery to be in the shed, so that we 
+          /* We need the jet battery to be in the shed, so that we
           ** have a fast algorithm for distinguishing jet batteries
           ** by ray address.
           */
@@ -123,7 +123,7 @@ u2_sh_mine(u2_ray  wir_r,
                 u2_ray_a(u2_dog_a(bot)),
                 u2_ray_b(u2_dog_a(bot)));
 #endif
-        } 
+        }
         else {
           bot = u2_rl_take(bas_r, bat);
 #if 0
@@ -143,11 +143,11 @@ u2_sh_mine(u2_ray  wir_r,
       {
         if ( _0 == bud ) {
           pet = u2_nul;
-        } 
+        }
         else {
           u2_atom p_bud = u2_t(bud);
           u2_noun car   = u2_frag(p_bud, cor);
- 
+
           if ( (u2_none == car) || (u2_no == u2_dust(car)) ) {
             break;
           } else {
@@ -343,7 +343,7 @@ u2_sh_look(u2_wire     wir_r,
            u2_noun     cor,
            const c3_c* tam_c)
 {
-  u2_ray  bas_r = u2_wire_bas_r(wir_r); 
+  u2_ray  bas_r = u2_wire_bas_r(wir_r);
   u2_noun bat   = u2_t(cor);
   u2_noun fol;
 
@@ -354,7 +354,7 @@ u2_sh_look(u2_wire     wir_r,
 
     if ( u2_none == xip ) {
       return u2_none;
-    } 
+    }
     else {
       u2_axis axe_w = _1;
 
diff --git a/f/trac.c b/f/trac.c
index dab0fdbbd..2ecbcb790 100644
--- a/f/trac.c
+++ b/f/trac.c
@@ -32,7 +32,7 @@
   /** Static sampling data structures, for signal handling use.
   **/
 #   define U2_TRAC_SAMPLE_MAX 10000
-    
+
     u2_loom_knot  _tx_knots[U2_TRAC_SAMPLE_MAX];
     u2_loom_knot* _tx_top_k;
     u2_ray        _tx_rac_r;
@@ -120,7 +120,7 @@ _tx_samp_on(u2_ray rac_r)
 {
   c3_assert(_tx_on == 0);
   c3_assert(_tx_knot_cur == 0);
- 
+
   _tx_on = 1;
   _tx_rac_r = rac_r;
 
@@ -251,7 +251,7 @@ _tx_event(u2_wire wir_r,
 /* u2_tx_events(): produce event list, including counts.
 */
 static u2_noun                                                    //  produce
-_tx_events(u2_wire wir_r, 
+_tx_events(u2_wire wir_r,
            u2_noun cot)                                           //  retain
 {
   u2_ray rac_r = u2_wire_rac_r(wir_r);
@@ -263,28 +263,28 @@ _tx_events(u2_wire wir_r,
   cot = _tx_event(wir_r, "sys-tests", u2_trac_be(rac_r, c3_d, sys.tes_d), cot);
   cot = _tx_event(wir_r, "sys-nods", u2_trac_be(rac_r, c3_d, sys.nod_d), cot);
 
-  cot = _tx_event(wir_r, "sys-cache-finds", 
+  cot = _tx_event(wir_r, "sys-cache-finds",
                          u2_trac_be(rac_r, c3_d, sys.fin_d), cot);
-  cot = _tx_event(wir_r, "sys-cache-saves", 
+  cot = _tx_event(wir_r, "sys-cache-saves",
                           u2_trac_be(rac_r, c3_d, sys.pod_d), cot);
 
   cot = _tx_event(wir_r, "sys-stack", u2_trac_at(rac_r, sys.cas_x.max_w), cot);
 
 #if 0
-  cot = _tx_event(wir_r, "sys-memory-used", 
+  cot = _tx_event(wir_r, "sys-memory-used",
         u2_trac_be(rac_r, c3_w, sys.men_x.max_w), cot);
   cot = _tx_event(wir_r, "sys-memory-held",
         u2_trac_be(rac_r, c3_w, sys.men_x.med_w), cot);
-  cot = _tx_event(wir_r, "sys-basket", 
+  cot = _tx_event(wir_r, "sys-basket",
         u2_trac_be(rac_r, c3_w, sys.bek_x.max_w), cot);
-  cot = _tx_event(wir_r, "sys-memory-active", 
-                        4 * (u2_soup_liv_w(u2_rail_rut_r(wir_r)) - 
+  cot = _tx_event(wir_r, "sys-memory-active",
+                        4 * (u2_soup_liv_w(u2_rail_rut_r(wir_r)) -
                              u2_trac_at(rac_r, sys.lif_w)),
                         cot);
 
-  cot = _tx_event(wir_r, "sys-memory-basket", 
-                        4 * 
-                        (u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r))) - 
+  cot = _tx_event(wir_r, "sys-memory-basket",
+                        4 *
+                        (u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r))) -
                          u2_trac_at(rac_r, sys.bos_w)),
                         cot);
 #endif
@@ -342,7 +342,7 @@ u2_tx_sys_bit(u2_ray wir_r, u2_bean val)
   u2_wrac_at(wir_r, wer.sys) = val;
   return bit;
 }
- 
+
 /* u2_tx_glu_bit(): set glutem bit, returning old value.
 */
 u2_bean
@@ -353,7 +353,7 @@ u2_tx_glu_bit(u2_ray wir_r, u2_bean val)
   u2_wrac_at(wir_r, wer.glu) = val;
   return bit;
 }
- 
+
 /* u2_tx_init(): initialize state.
 */
 u2_ray
@@ -391,17 +391,17 @@ u2_tx_open(u2_wire wir_r)
   u2_trac_be(rac_r, c3_d, sys.fin_d) = 0;
   u2_trac_be(rac_r, c3_d, sys.pod_d) = 0;
 
-  u2_trac_at(rac_r, sys.cas_x.med_w) = 
+  u2_trac_at(rac_r, sys.cas_x.med_w) =
   u2_trac_at(rac_r, sys.cas_x.max_w) = 0;
 
-  u2_trac_at(rac_r, sys.men_x.med_w) = 
+  u2_trac_at(rac_r, sys.men_x.med_w) =
   u2_trac_at(rac_r, sys.men_x.max_w) = 0;
 
-  u2_trac_at(rac_r, sys.bek_x.med_w) = 
+  u2_trac_at(rac_r, sys.bek_x.med_w) =
   u2_trac_at(rac_r, sys.bek_x.max_w) = 0;
 
   u2_trac_at(rac_r, sys.lif_w) = u2_soup_liv_w(u2_rail_rut_r(wir_r));
-  u2_trac_at(rac_r, sys.bos_w) = 
+  u2_trac_at(rac_r, sys.bos_w) =
     u2_soup_liv_w(u2_rail_rut_r(u2_wire_bas_r(wir_r)));
 
   {
@@ -418,7 +418,7 @@ u2_tx_open(u2_wire wir_r)
 }
 
 /* u2_tx_done(): produce a profile slab to render.  Free internal state.
-*/ 
+*/
 u2_noun                                                           //  produce
 u2_tx_done(u2_wire wir_r)
 {
@@ -446,7 +446,7 @@ u2_tx_done(u2_wire wir_r)
 
 /* u2_tx_do_debug(): set debug bean.  Return old value.
 */
-u2_bean 
+u2_bean
 u2_tx_do_debug(u2_ray wir_r, u2_bean lag)
 {
   u2_ray  rac_r = u2_wire_rac_r(wir_r);
@@ -458,7 +458,7 @@ u2_tx_do_debug(u2_ray wir_r, u2_bean lag)
 
 /* u2_tx_in_debug(): get debug bean.
 */
-u2_bean 
+u2_bean
 u2_tx_in_debug(u2_ray wir_r)
 {
   u2_ray rac_r = u2_wire_rac_r(wir_r);
@@ -468,7 +468,7 @@ u2_tx_in_debug(u2_ray wir_r)
 
 /* u2_tx_do_profile(): set profile bean.  Return old value.
 */
-u2_bean 
+u2_bean
 u2_tx_do_profile(u2_ray wir_r, u2_bean lag)
 {
   u2_ray  rac_r = u2_wire_rac_r(wir_r);
@@ -480,7 +480,7 @@ u2_tx_do_profile(u2_ray wir_r, u2_bean lag)
 
 /* u2_tx_in_profile(): get profile bean.
 */
-u2_bean 
+u2_bean
 u2_tx_in_profile(u2_ray wir_r)
 {
   u2_ray rac_r = u2_wire_rac_r(wir_r);
@@ -489,7 +489,7 @@ u2_tx_in_profile(u2_ray wir_r)
 }
 
 static u2_bean
-_tx_map_ok(u2_wire wir_r, 
+_tx_map_ok(u2_wire wir_r,
            u2_noun a)
 {
   if ( u2_nul == a ) {
@@ -559,8 +559,8 @@ _tx_increment_soft(u2_wire wir_r,
 
 /* u2_tx_did_act(): record user actions.
 */
-void 
-u2_tx_did_act(u2_wire wir_r, 
+void
+u2_tx_did_act(u2_wire wir_r,
               u2_noun did)                                        //  retain
 {
   u2_ray  rac_r = u2_wire_rac_r(wir_r);
@@ -578,7 +578,7 @@ u2_tx_did_act(u2_wire wir_r,
 ** u2_yes iff the task is not already in the stack.
 */
 u2_bean
-u2_tx_task_in(u2_wire wir_r, 
+u2_tx_task_in(u2_wire wir_r,
               u2_noun tak)                                        //  retain
 {
   //  Temporarily disabled due to bail issues.
@@ -691,7 +691,7 @@ _print_wall(u2_noun wal,
   }
 }
 #endif
-            
+
 /* u2_tx_slog(): print debug syslog [0-3 tank] 0=debug 3=alarm
 */
 void
diff --git a/f/unix.c b/f/unix.c
index 120abf730..385da5edd 100644
--- a/f/unix.c
+++ b/f/unix.c
@@ -29,7 +29,7 @@ _unix_term(u2_atom tat)
     }
     return u2_yes;
   }
-  else return u2_no; 
+  else return u2_no;
 }
 
 static void _unix_dump(FILE*, u2_noun);
@@ -98,7 +98,7 @@ _unix_scan_cell(u2_wire wir_r,
 
     return u2_bn_cell(wir_r, hed, tal);
   }
-  else { 
+  else {
     c3_assert(c == ']');
     return hed;
   }
@@ -114,7 +114,7 @@ _unix_scan(u2_wire wir_r,
 
   if ( c == '[' ) {
     return _unix_scan_cell(wir_r, fil);
-  } 
+  }
   else if ( c == '%' )  {
     c3_c buf[1025];
 
@@ -142,10 +142,10 @@ u2_ux_read(u2_ray      wir_r,
   c3_w  len_w;
   c3_c* nam_c;
 
-  if ( ext_c ) 
+  if ( ext_c )
     len_w = strlen(paf_c) + 1 + strlen(ext_c);
   else len_w = strlen(paf_c);
-  
+
   nam_c = alloca(len_w + 1);
   if ( ext_c ) {
     snprintf(nam_c, len_w + 1, "%s.%s", paf_c, ext_c);
@@ -171,7 +171,7 @@ u2_ux_read(u2_ray      wir_r,
     }
     close(fid_i);
 
-    fil = u2_rl_bytes(wir_r, fln_w, (c3_y *)fil_c); 
+    fil = u2_rl_bytes(wir_r, fln_w, (c3_y *)fil_c);
     free(fil_c);
 
     return fil;
@@ -184,14 +184,14 @@ u2_weak
 u2_ux_read_deep(u2_wire     wir_r,
                 const c3_c* paf_c,
                 const c3_c* ext_c)
-{ 
+{
   c3_w  len_w;
   c3_c* nam_c;
 
-  if ( ext_c ) 
+  if ( ext_c )
     len_w = strlen(paf_c) + 1 + strlen(ext_c);
   else len_w = strlen(paf_c);
-  
+
   nam_c = alloca(len_w + 1);
   if ( ext_c ) {
     snprintf(nam_c, len_w + 1, "%s.%s", paf_c, ext_c);
@@ -221,10 +221,10 @@ u2_ux_write(u2_wire     wir_r,
   c3_w  len_w;
   c3_c* nam_c;
 
-  if ( ext_c ) 
+  if ( ext_c )
     len_w = strlen(paf_c) + 1 + strlen(ext_c);
   else len_w = strlen(paf_c);
-  
+
   nam_c = alloca(len_w + 1);
   if ( ext_c ) {
     snprintf(nam_c, len_w + 1, "%s.%s", paf_c, ext_c);
@@ -263,10 +263,10 @@ u2_ux_write_deep(u2_wire     wir_r,
   c3_w  len_w;
   c3_c* nam_c;
 
-  if ( ext_c ) 
+  if ( ext_c )
     len_w = strlen(paf_c) + 1 + strlen(ext_c);
   else len_w = strlen(paf_c);
-  
+
   nam_c = alloca(len_w + 1);
   if ( ext_c ) {
     snprintf(nam_c, len_w + 1, "%s.%s", paf_c, ext_c);
diff --git a/f/wire.c b/f/wire.c
index b70fbbead..34cfafffa 100644
--- a/f/wire.c
+++ b/f/wire.c
@@ -1,5 +1,5 @@
 /* f/wire.c
-** 
+**
 ** This file is in the public domain.
 */
 #include "all.h"
@@ -47,14 +47,14 @@ u2_wr_init(c3_m   hip_m,
     u2_wire_bas_r(wir_r) = bas_r;
 
 #if 0
-    fprintf(stderr, "bas_r %d, hat %d, mat %d, cap %d, rut %d\n", 
+    fprintf(stderr, "bas_r %d, hat %d, mat %d, cap %d, rut %d\n",
         bas_r >> LoomPageWords,
         u2_rail_hat_r(bas_r) >> LoomPageWords,
         u2_rail_mat_r(bas_r) >> LoomPageWords,
         u2_rail_cap_r(bas_r) >> LoomPageWords,
         u2_rail_rut_r(bas_r) >> LoomPageWords);
 
-    fprintf(stderr, "wir_r %d, hat %d, mat %d, cap %d, rut %d\n", 
+    fprintf(stderr, "wir_r %d, hat %d, mat %d, cap %d, rut %d\n",
         wir_r >> LoomPageWords,
         u2_rail_hat_r(wir_r) >> LoomPageWords,
         u2_rail_mat_r(wir_r) >> LoomPageWords,
@@ -121,7 +121,7 @@ _wr_open(c3_c* cpu_c, c3_c* fil_c, c3_c* suf_c, c3_w len_w)
   if ( -1 == fid_i ) {
     perror(ful_c); exit(1);
   }
-  if ( len_w && 
+  if ( len_w &&
        (-1 == ftruncate(fid_i, (len_w * (1 << (LoomPageWords + 2))))) )
   {
     perror(ful_c); exit(1);
diff --git a/include/v/vere.h b/include/v/vere.h
index 59ab7ee50..1c3720d95 100644
--- a/include/v/vere.h
+++ b/include/v/vere.h
@@ -360,7 +360,10 @@
 #if 0
         uv_tty_t         wax_u;             //  event handler state
 #else
-        uv_poll_t        wax_u;
+        union {
+          uv_poll_t        wax_u;
+          uv_pipe_t        pop_u;
+        };
 #endif
         struct termios   bak_u;             //  cooked terminal state
         struct termios   raw_u;             //  raw terminal state
@@ -375,6 +378,7 @@
         u2_ubuf*         tou_u;             //  entry of output queue
         u2_ubuf*         out_u;             //  exit of output queue
 #     endif
+        u2_noun          lin;               //  next line to blit
         u2_utat          tat_u;             //  control state
         struct _u2_utty* nex_u;             //  next in host list
       } u2_utty;
diff --git a/v/ames.c b/v/ames.c
index 2531b5e0a..2f42df157 100644
--- a/v/ames.c
+++ b/v/ames.c
@@ -30,7 +30,7 @@ _ames_alloc(uv_handle_t* had_u, size_t len_i)
 {
   void* ptr_v = malloc(len_i);
 
-//  uL(fprintf(uH, "grab %p\n", ptr_v)); 
+//  uL(fprintf(uH, "grab %p\n", ptr_v));
   return uv_buf_init(ptr_v, len_i);
 }
 
@@ -53,7 +53,7 @@ _ames_czar(c3_y imp_y, c3_s* por_s)
   if ( u2_yes == u2_Host.ops_u.loh ) {
     *por_s = 31337 + imp_y;
     return 0x7f000001;
-  } 
+  }
   else {
     *por_s = 13337 + imp_y;
 
@@ -105,7 +105,7 @@ _ames_czar(c3_y imp_y, c3_s* por_s)
 #endif
               break;
             }
-            rai_u = rai_u->ai_next;    
+            rai_u = rai_u->ai_next;
           }
         }
         freeaddrinfo(air_u);
@@ -209,15 +209,15 @@ u2_ames_ef_send(u2_noun lan, u2_noun pac)
         add_u.sin_addr.s_addr = htonl(pip_w);
         add_u.sin_port = htons(por_s);
 
-        if ( 0 != uv_udp_send(&ruq_u->snd_u, 
-                              &sam_u->wax_u, 
-                              &buf_u, 1, 
-                              add_u, 
+        if ( 0 != uv_udp_send(&ruq_u->snd_u,
+                              &sam_u->wax_u,
+                              &buf_u, 1,
+                              add_u,
                               _ames_send_cb) ) {
           uL(fprintf(uH, "ames: send: %s\n", uv_strerror(uv_last_error(u2L))));
         }
         // fprintf(stderr, "ames: send\r\n");
-      }                
+      }
     }
   }
   u2z(lan); u2z(pac);
@@ -273,7 +273,7 @@ _ames_recv_cb(uv_udp_t*        wax_u,
 
 /* u2_ames_io_init(): initialize ames I/O.
 */
-void 
+void
 u2_ames_io_init()
 {
   u2_ames* sam_u = &u2_Host.sam_u;
@@ -292,11 +292,11 @@ u2_ames_io_init()
       exit(1);
     }
     num_y = u2_cr_byte(0, u2t(num));
-      
+
     _ames_czar(num_y, &por_s);
     // uL(fprintf(uH, "ames: czar: %s on %d\n", u2_Host.ops_u.imp_c, por_s));
     u2z(num);
-  } 
+  }
 
   if ( 0 != uv_udp_init(u2L, &u2_Host.sam_u.wax_u) ) {
     uL(fprintf(uH, "ames: init: %s\n", uv_strerror(uv_last_error(u2L))));
@@ -314,7 +314,7 @@ u2_ames_io_init()
     add_u.sin_port = htons(por_s);
 
     if ( uv_udp_bind(&sam_u->wax_u, add_u, 0) != 0 ) {
-      uL(fprintf(uH, "ames: bind: %s\n", 
+      uL(fprintf(uH, "ames: bind: %s\n",
                      uv_strerror(uv_last_error(u2L))));
       c3_assert(0);
     }
@@ -325,9 +325,9 @@ u2_ames_io_init()
     por_s = ntohs(add_u.sin_port);
     sam_u->por_s = por_s;
 
-    fprintf(stderr, "ames: on localhost, UDP %d.\n", por_s);
+    uL(fprintf(uH, "ames: on localhost, UDP %d.\n", por_s));
 
-    uv_udp_recv_start(&sam_u->wax_u, _ames_alloc, _ames_recv_cb); 
+    uv_udp_recv_start(&sam_u->wax_u, _ames_alloc, _ames_recv_cb);
   }
 
   //  Timer too.
@@ -338,7 +338,7 @@ u2_ames_io_init()
 
 /* u2_ames_io_exit(): terminate ames I/O.
 */
-void 
+void
 u2_ames_io_exit()
 {
   u2_ames* sam_u = &u2_Host.sam_u;
@@ -353,8 +353,8 @@ u2_ames_io_poll()
 {
   u2_ames* sam_u = &u2_Host.sam_u;
   u2_noun  wen = u2_reck_keep(u2A, u2nt(c3__gold, c3__ames, u2_nul));
- 
-  if ( (u2_nul != wen) && 
+
+  if ( (u2_nul != wen) &&
        (u2_yes == u2du(wen)) &&
        (u2_yes == u2ud(u2t(wen))) )
   {
diff --git a/v/batz.c b/v/batz.c
index 27d2eb321..e2104f2ac 100644
--- a/v/batz.c
+++ b/v/batz.c
@@ -26,7 +26,7 @@
 
 /* u2_batz_io_init(): initialize batz timer.
 */
-void 
+void
 u2_batz_io_init(void)
 {
   u2_batz* beh_u = &u2_Host.beh_u;
@@ -37,7 +37,7 @@ u2_batz_io_init(void)
 
 /* u2_batz_io_exit(): terminate timer.
 */
-void 
+void
 u2_batz_io_exit(void)
 {
 }
@@ -64,8 +64,8 @@ u2_batz_io_poll(void)
 {
   u2_batz* beh_u = &u2_Host.beh_u;
   u2_noun  wen   = u2_reck_keep(u2A, u2nt(c3__gold, c3__batz, u2_nul));
- 
-  if ( (u2_nul != wen) && 
+
+  if ( (u2_nul != wen) &&
        (u2_yes == u2du(wen)) &&
        (u2_yes == u2ud(u2t(wen))) )
   {
@@ -74,7 +74,7 @@ u2_batz_io_poll(void)
     gap_d += beh_u->run_w;
     if ( beh_u->run_w < 1024 ) {
       beh_u->run_w++;
-    }  
+    }
 
     if ( u2_yes == beh_u->alm ) {
       uv_timer_stop(&beh_u->tim_u);
diff --git a/v/fs.c b/v/fs.c
index de531d1a3..7185961cf 100644
--- a/v/fs.c
+++ b/v/fs.c
@@ -58,7 +58,7 @@ u2_ve_date(c3_c* ext_c, u2_noun tah)
 u2_noun
 u2_ve_frep(u2_noun myp, u2_noun hat)
 {
-  //  Total hack - switch to this form exclusively, 
+  //  Total hack - switch to this form exclusively,
   //  then revise callers.
   {
     c3_c* dex_c = u2_cr_string(myp);
@@ -78,7 +78,7 @@ u2_ve_frep(u2_noun myp, u2_noun hat)
       wen_w[1] = (wen_d >> 32ULL);
 
       free(dex_c);
-      return u2nt(u2_cr_met(3, fat), 
+      return u2nt(u2_cr_met(3, fat),
                   u2_ci_words(2, wen_w),
                   fat);
     }
diff --git a/v/http.c b/v/http.c
index fe93b9193..2f06f5a44 100644
--- a/v/http.c
+++ b/v/http.c
@@ -43,7 +43,7 @@ _http_bod(c3_w len_w, const c3_y* hun_y)
 
   bod_u->len_w = len_w;
   memcpy(bod_u->hun_y, hun_y, len_w);
-  
+
   bod_u->nex_u = 0;
   return bod_u;
 }
@@ -100,7 +100,7 @@ _http_bods_free(u2_hbod* bod_u)
 
 /* _http_req_free(): free http request.
 */
-static void 
+static void
 _http_req_free(u2_hreq* req_u)
 {
   if ( req_u ) {
@@ -136,7 +136,7 @@ _http_write_cb(uv_write_t* wri_u, c3_i sas_i)
   free(ruq_u->buf_y);
   free(ruq_u);
 }
- 
+
 /* _http_respond_buf(): write back to http.
 */
 static void
@@ -146,16 +146,16 @@ _http_respond_buf(u2_hreq* req_u, uv_buf_t buf_u)
 
   ruq_u->buf_y = (c3_y*)buf_u.base;
 
-  if ( 0 != uv_write(&ruq_u->wri_u, 
+  if ( 0 != uv_write(&ruq_u->wri_u,
                      (uv_stream_t*)&(req_u->hon_u->wax_u),
-                     &buf_u, 1, 
+                     &buf_u, 1,
                      _http_write_cb) )
   {
     uL(fprintf(uH, "respond: %s\n", uv_strerror(uv_last_error(u2L))));
     _http_conn_dead(req_u->hon_u);
   }
 }
- 
+
 /* _http_respond_body(): attach response body.
 */
 static void
@@ -289,7 +289,7 @@ _http_conn_free(uv_handle_t* han_t)
 */
 static void
 _http_conn_dead(u2_hcon *hon_u)
-{ 
+{
   uv_read_stop((uv_stream_t*) &(hon_u->wax_u));
   uv_close((uv_handle_t*) &(hon_u->wax_u), _http_conn_free);
 }
@@ -363,7 +363,7 @@ _http_url(http_parser* par_u, const c3_c* buf_c, size_t siz_i)
   req_u->url_c = _http_more(req_u->url_c, buf_c, siz_i);
   return 0;
 }
- 
+
 /* _http_header_field(): jhttp callback
 */
 static c3_i
@@ -372,7 +372,7 @@ _http_header_field(http_parser* par_u, const c3_c* buf_c, size_t siz_i)
   u2_hreq *req_u = par_u->data;
 
   switch ( req_u->rat_e ) {
-    case u2_hreq_non: 
+    case u2_hreq_non:
     case u2_hreq_val: {
       u2_hhed* hed_u = malloc(sizeof(*hed_u));
 
@@ -391,7 +391,7 @@ _http_header_field(http_parser* par_u, const c3_c* buf_c, size_t siz_i)
   req_u->rat_e = u2_hreq_nam;
   return 0;
 }
- 
+
 /* _http_header_value(): jhttp callback
 */
 static c3_i
@@ -436,13 +436,13 @@ _http_body(http_parser* par_u, const c3_c* buf_c, size_t siz_i)
 {
   {
     u2_hreq *req_u = par_u->data;
-    u2_hbod* bod_u; 
-  
+    u2_hbod* bod_u;
+
     bod_u = _http_bod(siz_i, (const c3_y*)buf_c);
 
     bod_u->nex_u = req_u->bod_u;
     req_u->bod_u = bod_u;
-   
+
     return 0;
   }
 }
@@ -463,12 +463,12 @@ _http_message_complete(http_parser* par_u)
   {
     if ( !hon_u->qer_u ) {
       c3_assert(!(hon_u->req_u));
-      
+
       hon_u->qer_u = hon_u->req_u = req_u;
     }
     else {
       hon_u->qer_u->nex_u = req_u;
-    } 
+    }
   }
 
   // Dispatch event request.
@@ -524,7 +524,7 @@ _http_req_new(u2_hcon* hon_u)
 /* _http_conn_read_cb(): server read callback.
 */
 static void
-_http_conn_read_cb(uv_stream_t* tcp_u, 
+_http_conn_read_cb(uv_stream_t* tcp_u,
                    ssize_t      siz_i,
                    uv_buf_t     buf_u)
 {
@@ -545,8 +545,8 @@ _http_conn_read_cb(uv_stream_t* tcp_u,
         hon_u->ruc_u = _http_req_new(hon_u);
       }
 
-      if ( siz_i != http_parser_execute(hon_u->ruc_u->par_u, 
-                                        &_http_settings, 
+      if ( siz_i != http_parser_execute(hon_u->ruc_u->par_u,
+                                        &_http_settings,
                                         (c3_c*)buf_u.base,
                                         siz_i) )
       {
@@ -570,18 +570,18 @@ _http_conn_new(u2_http *htp_u)
 
   uv_tcp_init(u2L, &hon_u->wax_u);
 
-  if ( 0 != uv_accept((uv_stream_t*)&htp_u->wax_u, 
+  if ( 0 != uv_accept((uv_stream_t*)&htp_u->wax_u,
                       (uv_stream_t*)&hon_u->wax_u) )
   {
-    uL(fprintf(uH, "http: accept: %s\n", 
+    uL(fprintf(uH, "http: accept: %s\n",
                     uv_strerror(uv_last_error(u2L))));
 
     uv_close((uv_handle_t*)&hon_u->wax_u, 0);
     free(hon_u);
   }
   else {
-    uv_read_start((uv_stream_t*)&hon_u->wax_u, 
-                  _http_alloc, 
+    uv_read_start((uv_stream_t*)&hon_u->wax_u,
+                  _http_alloc,
                   _http_conn_read_cb);
 
     hon_u->coq_l = htp_u->coq_l++;
@@ -658,7 +658,7 @@ _http_list_to_heds(u2_noun lix)
   while ( 1 ) {
     if ( u2_nul == lix ) {
       break;
-    } 
+    }
     else {
       u2_noun  i_lix = u2h(lix);
       u2_noun  pi_lix = u2h(i_lix);
@@ -729,7 +729,7 @@ _http_octs_to_bod(u2_noun oct)
 
     bod_u->len_w = len_w;
     u2_cr_bytes(0, len_w, bod_u->hun_y, u2t(oct));
-   
+
     bod_u->nex_u = 0;
 
     u2z(oct);
@@ -742,7 +742,7 @@ _http_octs_to_bod(u2_noun oct)
 static u2_noun
 _http_pox_to_noun(c3_w sev_l, c3_w coq_l, c3_w seq_l)
 {
-  return 
+  return
     u2nt(
       c3__iron,
       c3__http,
@@ -763,7 +763,7 @@ _http_request_to_noun(u2_hreq* req_u)
     default: fprintf(stderr, "strange request\r\n"); return u2_none;
     case u2_hmet_get: { med = c3__get; break; }
     case u2_hmet_post: { med = c3__post; break; }
-  } 
+  }
   url = u2_ci_string(req_u->url_c);
   hed = _http_heds_to_list(req_u->hed_u);
   bod = req_u->bod_u ? u2nc(u2_nul, _http_bods_to_octs(req_u->bod_u)) : u2_nul;
@@ -806,7 +806,7 @@ _http_request(u2_hreq* req_u)
   if ( u2_none != req ) {
     u2_noun pox = _http_pox_to_noun(req_u->hon_u->htp_u->sev_l,
                                     req_u->hon_u->coq_l,
-                                    req_u->seq_l); 
+                                    req_u->seq_l);
 
     u2_reck_plan(u2_Host.arv_u, pox, u2nq(c3__this, u2_yes, 0, req));
   }
@@ -846,7 +846,7 @@ _http_flush(u2_hcon* hon_u)
         c3_assert(rub_u == req_u->bur_u);
         req_u->bur_u = 0;
       }
-     
+
       free(rub_u);
     }
   }
@@ -893,13 +893,13 @@ _http_creq_url(u2_noun hat)
   if ( u2_no == u2_cr_pqr(hat, &p_hat, &q_hat, &r_hat) ) {
   |
   u2_noun p_hat = u2h(hat);
-  u2_noun 
+  u2_noun
   c3_
 }
 
 /* _http_creq(): http request from noun.
 */
-static u2_creq* 
+static u2_creq*
 _http_creq_new(c3_l num_l, u2_noun req)
 {
   // u2_creq* ceq_u = malloc(sizeof(u2_creq));
@@ -937,7 +937,7 @@ _http_ccon_find(u2_bean sec, c3_s por_s, c3_c* hos_c)
 */
 static void
 _http_ccon(c3_c* url_c)
-{ 
+{
   u2_bean sec, c3_s por_s, c3_c* hos_c;
   struct http_parser_url url_u;
 
@@ -949,7 +949,7 @@ _http_ccon(c3_c* url_c)
 
   if ( !((1 << UF_SCHEMA) & url_u.field_set) ) {
     return 0;
-  } 
+  }
   else if ( (url_u.field_data[UF_SCHEMA].len < 4) ||
             strncmp("http", url_c + url_u.field_data[UF_SCHEMA].off, 4) ) {
     return 0;
@@ -1000,7 +1000,7 @@ u2_http_ef_thus(c3_w    num_w,
 #endif
 }
 
-/* u2_http_ef_thou(): send %thou effect (incoming response) to http. 
+/* u2_http_ef_thou(): send %thou effect (incoming response) to http.
 */
 void
 u2_http_ef_thou(c3_l     coq_l,
@@ -1023,7 +1023,7 @@ _http_listen_cb(uv_stream_t* str_u, c3_i sas_i)
   u2_http* htp_u = (u2_http*)str_u;
 
   if ( 0 != sas_i ) {
-    uL(fprintf(uH, "http: listen_cb: %s\n", 
+    uL(fprintf(uH, "http: listen_cb: %s\n",
                     uv_strerror(uv_last_error(u2L))));
   }
   else {
@@ -1053,7 +1053,7 @@ _http_start(u2_http* htp_u)
       uv_err_t las_u = uv_last_error(u2L);
 
       if ( UV_EADDRINUSE == las_u.code ) {
-        htp_u->por_w++; 
+        htp_u->por_w++;
         continue;
       }
       else {
@@ -1064,21 +1064,21 @@ _http_start(u2_http* htp_u)
       uv_err_t las_u = uv_last_error(u2L);
 
       if ( UV_EADDRINUSE == las_u.code ) {
-        htp_u->por_w++; 
+        htp_u->por_w++;
         continue;
       }
       else {
         uL(fprintf(uH, "http: listen: %s\n", uv_strerror(las_u)));
       }
     }
-    uL(fprintf(uH, "http: live on %d\r\n", htp_u->por_w));
+    uL(fprintf(uH, "http: live on %d\n", htp_u->por_w));
     break;
   }
 }
 
 /* u2_http_io_init(): initialize http I/O.
 */
-void 
+void
 u2_http_io_init()
 {
   u2_http *htp_u = malloc(sizeof(*htp_u));
diff --git a/v/loop.c b/v/loop.c
index 4884a5c1f..e6f885c7a 100644
--- a/v/loop.c
+++ b/v/loop.c
@@ -40,11 +40,11 @@ static jmp_buf Signal_buf;
 static uint8_t Sigstk[SIGSTKSZ];
 
 typedef enum {
-  sig_none, 
-  sig_overflow, 
-  sig_interrupt, 
+  sig_none,
+  sig_overflow,
+  sig_interrupt,
   sig_terminate,
-  sig_memory, 
+  sig_memory,
   sig_assert,
   sig_timer
 } u2_kill;
@@ -65,7 +65,7 @@ _lo_signal_handle_over(int emergency, stackoverflow_context_t scp)
   if ( 1 == emergency ) {
     write(2, "stack emergency\n", strlen("stack emergency" + 2));
     abort();
-  } else 
+  } else
 #endif
   {
     Sigcause = sig_overflow;
@@ -197,7 +197,7 @@ _lo_poll(void)
 #if 0
 /* _lo_how(): print how.
 */
-static const c3_c* 
+static const c3_c*
 _lo_how(u2_noun how)
 {
   switch ( how ) {
@@ -301,7 +301,7 @@ void
 u2_lo_sway(c3_l tab_l, u2_noun tax)
 {
   u2_noun mok = u2_dc("mook", 2, tax);
-  
+
   u2_lo_punt(tab_l, u2k(u2t(mok)));
   u2z(mok);
 }
@@ -380,13 +380,13 @@ _lo_soft(u2_reck* rec_u, c3_w sec_w, u2_funk fun_f, u2_noun arg)
     u2z(arg);
     u2z(hoe);
     u2z(mok);
-  } 
+  }
   else {
     u2_noun pro = fun_f(rec_u, arg);
 
     _lo_signal_done();
     u2_cm_done();
- 
+
     u2_rl_fall(u2_Wire);
     pro = u2_rl_take(u2_Wire, pro);
     u2_rl_flog(u2_Wire);
@@ -411,7 +411,7 @@ _lo_hard(u2_reck* rec_u, u2_funk fun_f, u2_noun arg)
     u2_noun poo = u2k(u2t(pro));
 
     u2z(pro); return poo;
-  } 
+  }
   else {
     u2_lo_punt(2, u2k(u2t(pro)));
     u2z(pro);
@@ -476,8 +476,8 @@ _lo_pack(u2_reck* rec_u, u2_noun ron)
     uL(fprintf(uH, "lo_save: seek failed\n"));
     c3_assert(0);
   }
-#if 0 
-  uL(fprintf(uH, "log: write: at %d, %d: lar ent %d, len %d, mug %x\n", 
+#if 0
+  uL(fprintf(uH, "log: write: at %d, %d: lar ent %d, len %d, mug %x\n",
                   lug_u->len_w,
                   tar_w,
                   lar_u.ent_w,
@@ -520,7 +520,7 @@ _lo_save(u2_reck* rec_u, u2_noun ovo)
 
 /* _lo_pike(): poke with floating core.
 */
-static u2_noun 
+static u2_noun
 _lo_pike(u2_reck* rec_u, u2_noun ovo, u2_noun cor)
 {
   u2_noun fun = u2_cn_nock(cor, u2k(u2_cx_at(42, cor)));
@@ -622,18 +622,18 @@ _lo_lame(u2_reck* rec_u, u2_noun ovo, u2_noun why, u2_noun tan)
   }
   // u2_lo_show("data", u2k(u2t(u2t(ovo))));
 
-  u2z(ovo); 
+  u2z(ovo);
 
   gon = _lo_soft(rec_u, 0, u2_reck_poke, u2k(bov));
   if ( u2_blip == u2h(gon) ) {
     _lo_sure(rec_u, bov, u2k(u2h(u2t(gon))), u2k(u2t(u2t(gon))));
- 
+
     u2z(gon);
   }
   else {
     u2z(gon);
     {
-      u2_noun vab = u2nc(u2k(u2h(bov)), 
+      u2_noun vab = u2nc(u2k(u2h(bov)),
                          u2nc(c3__warn, u2_ci_tape("crude crash!")));
       u2_noun nog = _lo_soft(rec_u, 0, u2_reck_poke, u2k(vab));
 
@@ -655,12 +655,12 @@ static void _lo_punk(u2_reck* rec_u, u2_noun ovo);
 
 /* _lo_nick(): transform enveloped packets, [vir cor].
 */
-static u2_noun 
+static u2_noun
 _lo_nick(u2_reck* rec_u, u2_noun vir, u2_noun cor)
 {
   if ( u2_nul == vir ) {
     return u2nt(u2_blip, vir, cor);
-  } 
+  }
   else {
     u2_noun i_vir = u2h(vir);
     u2_noun pi_vir, qi_vir;
@@ -716,7 +716,7 @@ _lo_nick(u2_reck* rec_u, u2_noun vir, u2_noun cor)
 static void
 _lo_punk(u2_reck* rec_u, u2_noun ovo)
 {
-  // c3_c* txt_c = u2_cr_string(u2h(u2t(ovo))); 
+  // c3_c* txt_c = u2_cr_string(u2h(u2t(ovo)));
   c3_w sec_w;
   // static c3_w num_w;
   u2_noun gon;
@@ -725,7 +725,7 @@ _lo_punk(u2_reck* rec_u, u2_noun ovo)
 
   //  XX this is wrong - the timer should be on the original hose.
   //
-  if ( (c3__term == u2h(u2t(u2h(ovo)))) || 
+  if ( (c3__term == u2h(u2t(u2h(ovo)))) ||
        (c3__batz == u2h(u2t(u2h(ovo)))) ) {
     sec_w = 0;
   } else sec_w = 60;
@@ -749,7 +749,7 @@ _lo_punk(u2_reck* rec_u, u2_noun ovo)
     u2_noun vir = u2k(u2h(u2t(gon)));
     u2_noun cor = u2k(u2t(u2t(gon)));
     u2_noun nug;
-   
+
     u2z(gon);
     nug = _lo_nick(rec_u, vir, cor);
 
@@ -759,11 +759,11 @@ _lo_punk(u2_reck* rec_u, u2_noun ovo)
 
       u2z(nug);
       _lo_lame(rec_u, ovo, why, tan);
-    } 
+    }
     else {
       vir = u2k(u2h(u2t(nug)));
       cor = u2k(u2t(u2t(nug)));
-  
+
       u2z(nug);
       _lo_sure(rec_u, ovo, vir, cor);
     }
@@ -805,17 +805,17 @@ _lo_sing(u2_reck* rec_u, u2_noun ovo)
     u2_noun vir = u2k(u2h(u2t(gon)));
     u2_noun cor = u2k(u2t(u2t(gon)));
     u2_noun nug;
-   
+
     u2z(gon);
     nug = _lo_nick(rec_u, vir, cor);
 
     if ( u2_blip != u2h(nug) ) {
       _lo_suck(rec_u, ovo, nug);
-    } 
+    }
     else {
       vir = u2h(u2t(nug));
       cor = u2k(u2t(u2t(nug)));
-  
+
       while ( u2_nul != vir ) {
         u2_noun fex = u2h(vir);
         u2_noun fav = u2t(fex);
@@ -872,7 +872,7 @@ _lo_work(u2_reck* rec_u)
         new = u2k(u2A->now);
 
         tms_w = (c3_w)u2_time_gap_ms(old, new);
-        if ( tms_w >= 20 ) 
+        if ( tms_w >= 20 )
         {
           uL(fprintf(uH, "hear: %d ms\n", tms_w));
         }
@@ -967,7 +967,7 @@ _lo_home(u2_reck* rec_u)
   //  Copy urbit.pill.
   //
   {
-    snprintf(ful_c, 2048, "cp %s/urbit.pill %s", 
+    snprintf(ful_c, 2048, "cp %s/urbit.pill %s",
                     u2_Host.ops_u.hom_c, u2_Host.cpu_c);
     if ( 0 != system(ful_c) ) {
       uL(fprintf(uH, "could not %s\n", ful_c));
@@ -1002,14 +1002,14 @@ _lo_cask(u2_reck* rec_u, c3_c* dir_c, u2_bean nun)
     }
     else {
       c3_c* say_c = malloc(strlen(paw_c) + 2);
-      u2_noun say; 
+      u2_noun say;
 
       say_c[0] = '~';
       say_c[1] = 0;
       strncat(say_c, paw_c, strlen(paw_c) - 1);
 
       say = u2_do("slay", u2_ci_string(say_c));
-      if ( (u2_nul == say) || 
+      if ( (u2_nul == say) ||
            (u2_blip != u2h(u2t(say))) ||
            ('p' != u2h(u2t(u2t(say)))) )
       {
@@ -1076,7 +1076,7 @@ _lo_bask(c3_c* pop_c, u2_bean may)
 
     fpurge(stdin);
     fgets(ans_c, 2, stdin);
-   
+
     if ( (ans_c[0] != 'y') && (ans_c[0] != 'n') ) {
       continue;
     } else {
@@ -1163,9 +1163,9 @@ _lo_staf(u2_reck* rec_u, c3_l key_l)
     u2_noun pas;
 
 
-    if ( (u2_nul == say) || 
+    if ( (u2_nul == say) ||
          (u2_blip != u2h(u2t(say))) ||
-         ('p' != u2h(u2t(u2t(say)))) ) 
+         ('p' != u2h(u2t(u2t(say)))) )
     {
       uL(fprintf(uH, "staf: %s is corrupt\n", ful_c));
       u2z(say);
@@ -1208,13 +1208,13 @@ _lo_zest(u2_reck* rec_u)
   //  Create the ship directory.
   //
   _lo_home(rec_u);
-  
+
   //  Create the record file.
   {
     snprintf(ful_c, 2048, "%s/egz.hope", u2_Host.cpu_c);
 
-    if ( ((fid_i = open(ful_c, O_CREAT | O_WRONLY | O_EXCL, 0600)) < 0) || 
-         (fstat(fid_i, &buf_b) < 0) ) 
+    if ( ((fid_i = open(ful_c, O_CREAT | O_WRONLY | O_EXCL, 0600)) < 0) ||
+         (fstat(fid_i, &buf_b) < 0) )
     {
       uL(fprintf(uH, "can't create record (%s)\n", ful_c));
       u2_lo_bail(rec_u);
@@ -1252,7 +1252,7 @@ _lo_zest(u2_reck* rec_u)
     led_u.kno_w = rec_u->kno_w;
 
     if ( 0 == rec_u->key ) {
-      led_u.key_l = 0; 
+      led_u.key_l = 0;
     } else {
       led_u.key_l = u2_mug(rec_u->key);
 
@@ -1351,8 +1351,8 @@ _lo_rest(u2_reck* rec_u)
   {
     snprintf(ful_c, 2048, "%s/egz.hope", u2_Host.cpu_c);
 
-    if ( ((fid_i = open(ful_c, O_RDWR)) < 0) || 
-         (fstat(fid_i, &buf_b) < 0) ) 
+    if ( ((fid_i = open(ful_c, O_RDWR)) < 0) ||
+         (fstat(fid_i, &buf_b) < 0) )
     {
       uL(fprintf(uH, "rest: can't open record (%s)\n", ful_c));
       u2_lo_bail(rec_u);
@@ -1424,7 +1424,7 @@ _lo_rest(u2_reck* rec_u)
           rec_u->key = key;
           break;
         }
-      } 
+      }
     }
   }
 
@@ -1463,7 +1463,7 @@ _lo_rest(u2_reck* rec_u)
       }
 
 #if 0
-      uL(fprintf(uH, "log: read: at %d, %d: lar ent %d, len %d, mug %x\n", 
+      uL(fprintf(uH, "log: read: at %d, %d: lar ent %d, len %d, mug %x\n",
                       (tar_w - lar_u.len_w),
                       tar_w,
                       lar_u.ent_w,
@@ -1474,7 +1474,7 @@ _lo_rest(u2_reck* rec_u)
 
       if ( end_w == u2_Host.lug_u.len_w ) {
         ent_w = las_w = lar_u.ent_w;
-      } 
+      }
       else {
         if ( lar_u.ent_w != (ent_w - 1) ) {
           uL(fprintf(uH, "record (%s) is corrupt (g)\n", ful_c));
@@ -1514,7 +1514,7 @@ _lo_rest(u2_reck* rec_u)
         if ( u2_no == u2du(dep) ) {
           uL(fprintf(uH, "record (%s) is corrupt (k)\n", ful_c));
           u2_lo_bail(rec_u);
-        } 
+        }
         else {
           ron = u2k(u2t(dep));
           u2z(dep);
@@ -1583,7 +1583,7 @@ _lo_rest(u2_reck* rec_u)
   }
 
   //  Now, who the fsck are you?  No, really.
-  { 
+  {
     u2_noun who;
     c3_c*   fil_c;
     c3_c*   who_c;
@@ -1605,7 +1605,7 @@ _lo_rest(u2_reck* rec_u)
 #endif
 
   //  Rewrite the header.  Will probably corrupt the record.
-  { 
+  {
     u2_uled led_u;
 
     led_u.mag_l = u2_mug('f');
@@ -1614,7 +1614,7 @@ _lo_rest(u2_reck* rec_u)
     led_u.key_l = rec_u->key ? u2_mug(rec_u->key) : 0;
     led_u.kno_w = rec_u->kno_w;         //  may need actual translation!
     led_u.tno_l = 1;
-   
+
     if ( (-1 == lseek(fid_i, 0, SEEK_SET)) ||
          (sizeof(led_u) != write(fid_i, &led_u, sizeof(led_u))) )
     {
@@ -1631,7 +1631,7 @@ _lo_rest(u2_reck* rec_u)
 
 /* _lo_zen(): get OS entropy.
 */
-static u2_noun 
+static u2_noun
 _lo_zen(u2_reck* rec_u)
 {
   c3_w rad_w[8];
@@ -1695,7 +1695,7 @@ _lo_boot(void)
 static void
 _lo_bench_noop(c3_w num_w)
 {
-  c3_w i_w; 
+  c3_w i_w;
 
   for ( i_w = 0; i_w < num_w; i_w++ ) {
     u2_reck_plan(u2A, u2nq(c3__gold, c3__term, 1, u2_nul),
@@ -1795,11 +1795,11 @@ _lo_bench(const c3_c* lab_c, void (*fun)(c3_w), c3_w num_w)
     c3_w tms_w = (c3_w)u2_time_gap_ms(old, new);
 
     if ( tms_w > (10 * num_w) ) {
-      uL(fprintf(uH, "bench: %s*%d: %d ms, %d ms each.\n", 
+      uL(fprintf(uH, "bench: %s*%d: %d ms, %d ms each.\n",
                       lab_c, num_w, tms_w, (tms_w / num_w)));
     }
     else {
-      uL(fprintf(uH, "bench: %s*%d: %d ms, %d us each.\n", 
+      uL(fprintf(uH, "bench: %s*%d: %d ms, %d us each.\n",
                       lab_c, num_w, tms_w, ((tms_w * 1000) / num_w)));
     }
   }
@@ -1836,7 +1836,7 @@ _lo_slow()
 void
 u2_lo_loop(u2_reck* rec_u)
 {
-  uv_loop_t* lup_u = uv_default_loop(); 
+  uv_loop_t* lup_u = uv_default_loop();
 
   u2_Host.lup_u = lup_u;
 
@@ -1890,7 +1890,7 @@ _lo_mark_reck(u2_reck* rec_u)
 
   {
     u2_cart* egg_u;
- 
+
     egg_w = 0;
     for ( egg_u = rec_u->ova.egg_u; egg_u; egg_u = egg_u->nex_u ) {
       egg_w += u2_cm_mark_noun(egg_u->egg);
@@ -1930,7 +1930,7 @@ _lo_word(c3_w wod_w)
     top = u2_no;
   }
   if ( wod_w / (1000 * 1000) ) {
-    uL(fprintf(uH, ((top == u2_yes) ? "%u." : "%03u."), 
+    uL(fprintf(uH, ((top == u2_yes) ? "%u." : "%03u."),
                      wod_w / (1000 * 1000)));
     wod_w %= (1000 * 1000);
     top = u2_no;
@@ -1961,7 +1961,7 @@ u2_lo_grab(c3_c* cap_c, u2_noun som, ...)
       siz_w += u2_cm_mark_noun(som);
 
       while ( u2_none != (tur = va_arg(vap, u2_noun)) ) {
-        siz_w += u2_cm_mark_noun(tur); 
+        siz_w += u2_cm_mark_noun(tur);
       }
     }
     va_end(vap);
diff --git a/v/main.c b/v/main.c
index 781592184..7a3ed0786 100644
--- a/v/main.c
+++ b/v/main.c
@@ -30,7 +30,7 @@
     */
       extern u2_ho_driver j2_da(k_191);
 
-    /* Built-in battery drivers.   Null `cos` terminates. 
+    /* Built-in battery drivers.   Null `cos` terminates.
     */
       u2_ho_driver *HostDriverBase[] = {
         &j2_k_191_d,
@@ -129,7 +129,7 @@ _main_getopt(c3_i argc, c3_c** argv)
 
   if ( argc != (optind + 1) ) {
     return u2_no;
-  } else { 
+  } else {
     {
       c3_c* ash_c;
 
@@ -226,9 +226,9 @@ main(c3_i   argc,
   {
     u2_wr_check_init(u2_Host.ops_u.cpu_c);
 
-    if ( (u2_no == u2_Host.ops_u.nuu) && 
+    if ( (u2_no == u2_Host.ops_u.nuu) &&
           (u2_no == u2_Host.ops_u.rez) &&
-          (u2_yes == u2_loom_load()) ) 
+          (u2_yes == u2_loom_load()) )
     {
       u2_Host.wir_r = u2_ray_of(0, 0);
       u2_Wire = u2_Host.wir_r;
@@ -246,7 +246,7 @@ main(c3_i   argc,
       u2_Host.kno_w = kno_w;
 
       u2_ho_push();
-    } 
+    }
     else {
       u2_loom_boot();
       u2_Host.wir_r = u2_wr_init(c3__rock, u2_ray_of(0, 0), u2_ray_of(1, 0));
@@ -268,7 +268,7 @@ main(c3_i   argc,
       printf("time: %s\n", dyt_c);
       free(dyt_c);
     }
-  } 
+  }
   else {
     //  Set outside bail trap.  Should not be used, but you never know...
     //
@@ -282,7 +282,7 @@ main(c3_i   argc,
           kno_w = DefaultKernel;
         } else {
           kno_w = u2_Host.ops_u.kno_w;
-        } 
+        }
       }
 
       //  Load the system.
diff --git a/v/reck.c b/v/reck.c
index 07653b033..6d930df07 100644
--- a/v/reck.c
+++ b/v/reck.c
@@ -36,7 +36,7 @@ _reck_nock_poke(u2_reck* rec_u, u2_noun ovo)
 {
   u2_noun fun = u2_cn_nock(u2k(rec_u->roc), u2k(u2_cx_at(42, rec_u->roc)));
   u2_noun sam, pro;
-  
+
   sam = u2nc(u2k(rec_u->now), ovo);
 #if 0
   {
@@ -88,14 +88,14 @@ _reck_nock_wish(u2_reck* rec_u, u2_noun txt)
 
 /* u2_reck_gate(): load a kernel function.
 */
-u2_noun 
+u2_noun
 u2_reck_gate(const c3_c* txt_c)
 {
   u2_noun txt = u2_ci_string(txt_c);
   u2_weak gat = u2_ckd_by_get(u2k(u2_Arv->yot), u2k(txt));
 
   if ( u2_none == gat ) {
-    gat = _reck_nock_wish(u2_Arv, u2k(txt));  
+    gat = _reck_nock_wish(u2_Arv, u2k(txt));
     u2_Arv->yot = u2_ckd_by_put(u2_Arv->yot, u2k(txt), u2k(gat));
   }
   u2z(txt);
@@ -104,7 +104,7 @@ u2_reck_gate(const c3_c* txt_c)
 
 /* u2_reck_do(): use a kernel function.
 */
-u2_noun 
+u2_noun
 u2_reck_do(const c3_c* txt_c, u2_noun arg)
 {
   return u2_cn_mung(u2_reck_gate(txt_c), arg);
@@ -112,7 +112,7 @@ u2_reck_do(const c3_c* txt_c, u2_noun arg)
 
 /* u2_reck_wish(): noun from expression
 */
-u2_noun 
+u2_noun
 u2_reck_wish(u2_reck* rec_u, c3_c* str_c)
 {
   return _reck_nock_wish(rec_u, u2_ci_string(str_c));
@@ -129,7 +129,7 @@ _reck_scot(u2_reck* rec_u, u2_noun dim)
 #if 0
 /* _reck_spoo(): noun path from c, kind of a hack.
 */
-static u2_noun 
+static u2_noun
 _reck_spoo(c3_c* pax_c)
 {
   if ( !*pax_c ) {
@@ -139,14 +139,14 @@ _reck_spoo(c3_c* pax_c)
 
     if ( !ash_c ) {
       return u2nc(u2_ci_string(pax_c), u2_nul);
-    } 
+    }
     else {
       u2_noun pan;
 
       *ash_c = 0;
       pan = u2_ci_string(pax_c);
       *ash_c = '/';
-      
+
       return u2nc(pan, _reck_spoo(ash_c + 1));
     }
   }
@@ -200,11 +200,11 @@ u2_reck_numb(u2_reck* rec_u)
   struct timeval tp;
 
   gettimeofday(&tp, 0);
-  rec_u->sev_l = 0x7fffffff & 
+  rec_u->sev_l = 0x7fffffff &
                  ( ((c3_w) tp.tv_sec) ^
                    u2_mug(0x7fffffff & ((c3_w) tp.tv_usec)) ^
                    u2_mug(getpid()));
-  u2z(rec_u->sen);        
+  u2z(rec_u->sen);
   rec_u->sen = _reck_scot(rec_u, u2nc(c3__uv, rec_u->sev_l));
 }
 
@@ -213,7 +213,7 @@ u2_reck_numb(u2_reck* rec_u)
 */
 static void
 _reck_time_bump(u2_reck* rec_u)
-{ 
+{
   c3_d bum_d = (1ULL << 48ULL);
 
   rec_u->now = u2_cka_add(rec_u->now, u2_ci_chubs(1, &bum_d));
@@ -230,7 +230,7 @@ u2_reck_peek(u2_reck* rec_u, u2_noun our, u2_noun hap)
 
 /* u2_reck_keep(): measure timer.
 */
-u2_noun 
+u2_noun
 u2_reck_keep(u2_reck* rec_u, u2_noun hap)
 {
   return _reck_nock_keep(rec_u, hap);
@@ -251,7 +251,7 @@ _reck_init_veer(u2_reck* rec_u, u2_noun nam, u2_noun pax, u2_noun txt)
     u2z(hoe);
 
     exit(1);
-  } 
+  }
   else {
     {
       u2_noun ovo, pro, rog;
@@ -270,10 +270,10 @@ _reck_init_veer(u2_reck* rec_u, u2_noun nam, u2_noun pax, u2_noun txt)
       u2z(rec_u->roc);
       rec_u->roc = rog;
     }
-  } 
+  }
 }
 
-/* u2_reck_cold(): load full arvo with vanes, from new solid state. 
+/* u2_reck_cold(): load full arvo with vanes, from new solid state.
 */
 void
 u2_reck_cold(u2_reck* rec_u, c3_w kno_w)
@@ -388,7 +388,7 @@ u2_reck_init(u2_reck* rec_u, c3_w kno_w, u2_noun ken)
 
   if ( kno_w > 191 ) {
     c3_assert(!"old kernel not supported");
-  } 
+  }
   else {
     rec_u->ken = ken;
     rec_u->roc = u2_cn_nock(0, u2k(ken));
@@ -412,27 +412,27 @@ u2_reck_init(u2_reck* rec_u, c3_w kno_w, u2_noun ken)
     //  Direct poke to install tang/vanes.  Shd be in egz but isnt.
     //
     {
-      _reck_init_veer(rec_u, 0, 
+      _reck_init_veer(rec_u, 0,
                              u2nc(c3__zuse, u2_nul),
                              _reck_load_arvo(rec_u, "zuse"));
 
-      _reck_init_veer(rec_u, 'a', 
-                             u2nc(c3__ames, u2_nul), 
+      _reck_init_veer(rec_u, 'a',
+                             u2nc(c3__ames, u2_nul),
                              _reck_load_arvo(rec_u, "ames"));
 
-      _reck_init_veer(rec_u, 'b', 
+      _reck_init_veer(rec_u, 'b',
                              u2nc(c3__batz, u2_nul),
                              _reck_load_arvo(rec_u, "batz"));
 
-      _reck_init_veer(rec_u, 'c', 
+      _reck_init_veer(rec_u, 'c',
                              u2nc(c3__clay, u2_nul),
                              _reck_load_arvo(rec_u, "clay"));
 
-      _reck_init_veer(rec_u, 'd', 
+      _reck_init_veer(rec_u, 'd',
                              u2nc(c3__dill, u2_nul),
                              _reck_load_arvo(rec_u, "dill"));
 
-      _reck_init_veer(rec_u, 'e', 
+      _reck_init_veer(rec_u, 'e',
                              u2nc(c3__eyre, u2_nul),
                              _reck_load_arvo(rec_u, "eyre"));
     }
@@ -455,7 +455,7 @@ u2_reck_init(u2_reck* rec_u, c3_w kno_w, u2_noun ken)
 
 /* _reck_mole(): parse simple atomic mole.
 */
-static u2_bean 
+static u2_bean
 _reck_mole(u2_reck* rec_u,
            u2_noun  fot,
            u2_noun  san,
@@ -483,7 +483,7 @@ _reck_mole(u2_reck* rec_u,
 /* _reck_lily(): parse little atom.
 */
 static u2_bean
-_reck_lily(u2_reck* rec_u, u2_noun fot, u2_noun txt, c3_l* tid_l) 
+_reck_lily(u2_reck* rec_u, u2_noun fot, u2_noun txt, c3_l* tid_l)
 {
   c3_d ato_d;
 
@@ -512,14 +512,14 @@ _reck_kick_term(u2_reck* rec_u, u2_noun pox, c3_l tid_l, u2_noun fav)
   }
   else switch ( u2h(fav) ) {
     default: u2z(pox); u2z(fav); return u2_no;
-    case c3__bbye: 
+    case c3__bbye:
     {
       u2_reck_sync(rec_u);
       // u2_reck_plan(rec_u, pox, u2nc(c3__helo, u2_nul));
 
       u2z(pox); u2z(fav); return u2_yes;
-    } break; 
-     
+    } break;
+
     case c3__blit: p_fav = u2t(fav);
     {
       u2_term_ef_blit(tid_l, u2k(p_fav));
@@ -527,7 +527,7 @@ _reck_kick_term(u2_reck* rec_u, u2_noun pox, c3_l tid_l, u2_noun fav)
       u2z(pox); u2z(fav); return u2_yes;
     } break;
 
-    case c3__logo: 
+    case c3__logo:
     {
       u2_Host.liv = u2_no;
 
@@ -558,7 +558,7 @@ _reck_kick_term(u2_reck* rec_u, u2_noun pox, c3_l tid_l, u2_noun fav)
 /* _reck_kick_http(): apply http effects.
 */
 static u2_bean
-_reck_kick_http(u2_reck* rec_u, 
+_reck_kick_http(u2_reck* rec_u,
                 u2_noun  pox,
                 c3_l     coq_l,
                 c3_l     seq_l,
@@ -568,14 +568,14 @@ _reck_kick_http(u2_reck* rec_u,
 
   if ( u2_no == u2du(fav) ) {
     u2z(pox); u2z(fav); return u2_no;
-  } 
+  }
   else switch ( u2h(fav) ) {
     default: u2z(pox); u2z(fav); return u2_no;
 
     case c3__thus: p_fav = u2h(u2t(fav)); q_fav = u2t(u2t(fav));
     {
       u2_http_ef_thus(u2_cr_word(0, p_fav), u2k(q_fav));
- 
+
       return u2_yes;
     }
     case c3__thou: p_fav = u2t(fav);
@@ -645,7 +645,7 @@ static u2_bean
 _reck_kick_spec(u2_reck* rec_u, u2_noun pox, u2_noun fav)
 {
   u2_noun i_pox, t_pox;
-    
+
   if ( (u2_no == u2_cr_cell(pox, &i_pox, &t_pox)) ||
        ((i_pox != c3__gold) && (i_pox != c3__iron) && (i_pox != c3__lead)) )
   {
@@ -694,7 +694,7 @@ _reck_kick_spec(u2_reck* rec_u, u2_noun pox, u2_noun fav)
         return _reck_kick_http(rec_u, pox, coq_l, seq_l, fav);
       } break;
 
-      case c3__clay: 
+      case c3__clay:
       case c3__sync: {
         return _reck_kick_sync(rec_u, pox, fav);
       } break;
@@ -703,7 +703,7 @@ _reck_kick_spec(u2_reck* rec_u, u2_noun pox, u2_noun fav)
         if ( (u2_nul != tt_pox) ) {
           u2z(pox); u2z(fav); return u2_no;
         }
-        else { 
+        else {
           return _reck_kick_ames(rec_u, pox, fav);
         }
       } break;
@@ -736,10 +736,10 @@ _reck_kick_norm(u2_reck* rec_u, u2_noun pox, u2_noun fav)
 {
   if ( u2_no == u2du(fav) ) {
     u2z(pox); u2z(fav); return u2_no;
-  } 
+  }
   else switch ( u2h(fav) ) {
     default: u2z(pox); u2z(fav); return u2_no;
- 
+
     case c3__exit:
     {
       uL(fprintf(uH, "<<<goodbye>>>\n"));
@@ -781,14 +781,14 @@ u2_reck_kick(u2_reck* rec_u, u2_noun ovo)
 #if 0
          (c3__talk == u2h(u2t(ovo))) ||
          (c3__helo == u2h(u2t(ovo))) ||
-         (c3__init == u2h(u2t(ovo))) ) 
+         (c3__init == u2h(u2t(ovo))) )
 #endif
     {
-      u2_reck_plan(rec_u, u2nt(c3__gold, c3__term, u2_nul), 
+      u2_reck_plan(rec_u, u2nt(c3__gold, c3__term, u2_nul),
                           u2nc(c3__flog, u2k(u2t(ovo))));
     }
     else {
-      uL(fprintf(uH, "kick: lost %%%s on %s\n", 
+      uL(fprintf(uH, "kick: lost %%%s on %s\n",
                      u2_cr_string(u2h(u2t(ovo))),
                      u2_cr_string(tox)));
 #if 0
@@ -836,11 +836,11 @@ u2_reck_boot(u2_reck* rec_u)
     u2z(hoe);
 
     exit(1);
-  } 
+  }
   else {
     u2_reck_cold(rec_u, u2_Host.kno_w);
     u2_cm_done();
-  
+
     u2_cm_purge();
   }
 }
@@ -869,11 +869,11 @@ u2_reck_prick(u2_reck* rec_u, u2_noun our, u2_noun hap)
     u2z(hoe);
 
     return u2_nul;
-  } 
+  }
   else {
     que = u2_reck_peek(rec_u, our, hap);
     u2_cm_done();
-  
+
     u2_cm_purge();
   }
   return que;
@@ -916,6 +916,6 @@ u2_reck_plow(u2_reck* rec_u, u2_noun ova)
 
     u2_reck_plan(rec_u, u2k(u2h(ovo)), u2k(u2t(ovo)));
     ovi = u2t(ovi);
-  } 
+  }
   u2z(ova);
 }
diff --git a/v/save.c b/v/save.c
index bf9567a62..82e60091d 100644
--- a/v/save.c
+++ b/v/save.c
@@ -52,7 +52,7 @@ _save_time_cb(uv_timer_t* tim_u, c3_i sas_i)
     if ( 0 == (pid_w = fork()) ) {
       u2_loom_save(u2A->ent_w);
       exit(0);
-    } 
+    }
     else {
       uL(fprintf(uH, "checkpoint: process %d\n", pid_w));
 
@@ -63,7 +63,7 @@ _save_time_cb(uv_timer_t* tim_u, c3_i sas_i)
     u2_loom_save(u2A->ent_w);
     sav_u->ent_w = u2A->ent_w;
 #endif
-  } 
+  }
 }
 
 /* u2_save_ef_chld(): report save termination.
@@ -90,7 +90,7 @@ u2_save_ef_chld(void)
 
 /* u2_save_io_init(): initialize autosave.
 */
-void 
+void
 u2_save_io_init(void)
 {
   u2_save* sav_u = &u2_Host.sav_u;
@@ -101,12 +101,12 @@ u2_save_io_init(void)
   uv_timer_init(u2L, &sav_u->tim_u);
   uv_timer_start(&sav_u->tim_u, _save_time_cb, 15000, 15000);
 
-  uv_signal_start(&sav_u->sil_u, _save_sign_cb, SIGCHLD); 
+  uv_signal_start(&sav_u->sil_u, _save_sign_cb, SIGCHLD);
 }
 
 /* u2_save_io_exit(): terminate save I/O.
 */
-void 
+void
 u2_save_io_exit(void)
 {
 }
diff --git a/v/term.c b/v/term.c
index b24d22ab3..3d950de89 100644
--- a/v/term.c
+++ b/v/term.c
@@ -28,6 +28,7 @@ static void _term_read_cb(uv_stream_t*, ssize_t, uv_buf_t);
 #if 1
 static void _term_poll_cb(uv_poll_t*, c3_i, c3_i);
 #endif
+static void _term_it_do_writes(u2_utty*);
 
 #if 0
 /* _term_alloc(): libuv buffer allocator.
@@ -41,28 +42,28 @@ _term_alloc(uv_handle_t* had_u, size_t len_i)
 
 /* u2_term_io_init(): initialize terminal.
 */
-void 
+void
 u2_term_io_init()
 {
-  if ( u2_no == u2_Host.ops_u.dem ) {
-    u2_utty* uty_u = malloc(sizeof(u2_utty));
-    c3_i     fid_i = 0;                         //  stdin, yes we write to it...
+  u2_utty* uty_u = malloc(sizeof(u2_utty));
 
+  if ( u2_yes == u2_Host.ops_u.dem ) {
+    uty_u->fid_i = 1;
+    uty_u->lin = u2_nul;
+
+    uv_pipe_init(u2L, &(uty_u->pop_u), uty_u->fid_i);
+    uv_pipe_open(&(uty_u->pop_u), uty_u->fid_i);
+  }
+  else {
     //  Initialize event processing.  Rawdog it.
     //
     {
-      uty_u->fid_i = fid_i;
+      uty_u->fid_i = 0;                       //  stdin, yes we write to it...
 
-#if 0
-      uv_tty_init(u2L, &(uty_u->wax_u), fid_i, 1);
-      uv_tty_set_mode(&(uty_u->wax_u), 1);
-      uv_read_start((uv_stream_t*)&uty_u->wax_u, _term_alloc, _term_read_cb);
-#else
-      uv_poll_init(u2L, &(uty_u->wax_u), fid_i);
-      uv_poll_start(&(uty_u->wax_u), 
-                    (UV_READABLE | UV_WRITABLE), 
+      uv_poll_init(u2L, &(uty_u->wax_u), uty_u->fid_i);
+      uv_poll_start(&(uty_u->wax_u),
+                    UV_READABLE | UV_WRITABLE,
                     _term_poll_cb);
-#endif
     }
 
     //  Configure horrible stateful terminfo api.
@@ -127,23 +128,23 @@ u2_term_io_init()
       }
 
       uty_u->ufo_u.inn.max_w = 0;
-      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuu1_y)) > 
-            uty_u->ufo_u.inn.max_w ) 
+      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuu1_y)) >
+            uty_u->ufo_u.inn.max_w )
       {
         uty_u->ufo_u.inn.max_w = len_w;
       }
-      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcud1_y)) > 
-            uty_u->ufo_u.inn.max_w ) 
+      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcud1_y)) >
+            uty_u->ufo_u.inn.max_w )
       {
         uty_u->ufo_u.inn.max_w = len_w;
       }
-      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcub1_y)) > 
-            uty_u->ufo_u.inn.max_w ) 
+      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcub1_y)) >
+            uty_u->ufo_u.inn.max_w )
       {
         uty_u->ufo_u.inn.max_w = len_w;
       }
-      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuf1_y)) > 
-            uty_u->ufo_u.inn.max_w ) 
+      if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuf1_y)) >
+            uty_u->ufo_u.inn.max_w )
       {
         uty_u->ufo_u.inn.max_w = len_w;
       }
@@ -153,10 +154,10 @@ u2_term_io_init()
     //
 #if 1
     {
-      if ( 0 != tcgetattr(fid_i, &uty_u->bak_u) ) {
+      if ( 0 != tcgetattr(uty_u->fid_i, &uty_u->bak_u) ) {
         c3_assert(!"init-tcgetattr");
       }
-      if ( -1 == fcntl(fid_i, F_GETFL, &uty_u->cug_i) ) {
+      if ( -1 == fcntl(uty_u->fid_i, F_GETFL, &uty_u->cug_i) ) {
         c3_assert(!"init-fcntl");
       }
       uty_u->cug_i &= ~O_NONBLOCK;                // could fix?
@@ -175,7 +176,7 @@ u2_term_io_init()
       uty_u->raw_u.c_oflag &= ~(OPOST);
       uty_u->raw_u.c_cc[VMIN] = 0;
       uty_u->raw_u.c_cc[VTIME] = 0;
-    } 
+    }
 #endif
 
     //  Initialize mirror and accumulator state.
@@ -191,25 +192,21 @@ u2_term_io_init()
       uty_u->tat_u.fut.len_w = 0;
       uty_u->tat_u.fut.wid_w = 0;
     }
+  }
 
-    //  This is terminal 1, linked in host.
-    //
-    {
-      uty_u->tid_l = 1;
-#if 1
-      uty_u->out_u = 0;
-      uty_u->tou_u = 0;
-#endif
+  //  This is terminal 1, linked in host.
+  //
+  {
+    uty_u->tid_l = 1;
+    uty_u->out_u = 0;
+    uty_u->tou_u = 0;
 
-      uty_u->nex_u = u2_Host.uty_u;
-      u2_Host.uty_u = uty_u;
-      u2_Host.tem_u = uty_u;
-    }
+    uty_u->nex_u = u2_Host.uty_u;
+    u2_Host.uty_u = uty_u;
+    u2_Host.tem_u = uty_u;
+  }
 
-    //  Start reading.
-    //
-
-#if 1
+  if ( u2_no == u2_Host.ops_u.dem ) {
     //  Start raw input.
     //
     {
@@ -220,35 +217,30 @@ u2_term_io_init()
         c3_assert(!"init-fcntl");
       }
     }
-#endif
   }
 }
 
 /* u2_term_io_exit(): clean up terminal.
 */
-void 
+void
 u2_term_io_exit(void)
 {
-#if 0
-  u2_utty* uty_u = u2_Host.uty_u;
-
-  //  Turn off raw mode.
-  //
-  uv_tty_set_mode(&uty_u->wax_u, 0);
-
-#else
-  u2_utty* uty_u;
-
-  for ( uty_u = u2_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
-    if ( 0 != tcsetattr(uty_u->fid_i, TCSADRAIN, &uty_u->bak_u) ) {
-      c3_assert(!"exit-tcsetattr");
-    }
-    if ( -1 == fcntl(uty_u->fid_i, F_SETFL, uty_u->cug_i) ) {
-      c3_assert(!"exit-fcntl");
-    }
-    write(uty_u->fid_i, "\r\n", 2);
+  if ( u2_yes == u2_Host.ops_u.dem ) {
+    uv_close((uv_handle_t*)&u2_Host.uty_u->pop_u, NULL);
+  }
+  else {
+    u2_utty* uty_u;
+
+    for ( uty_u = u2_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
+      if ( 0 != tcsetattr(uty_u->fid_i, TCSADRAIN, &uty_u->bak_u) ) {
+        c3_assert(!"exit-tcsetattr");
+      }
+      if ( -1 == fcntl(uty_u->fid_i, F_SETFL, uty_u->cug_i) ) {
+        c3_assert(!"exit-fcntl");
+      }
+      write(uty_u->fid_i, "\r\n", 2);
+    }
   }
-#endif
 }
 
 void
@@ -285,7 +277,7 @@ _term_it_buf(c3_w len_w, const c3_y* hun_y)
 
   buf_u->len_w = len_w;
   memcpy(buf_u->hun_y, hun_y, len_w);
-  
+
   buf_u->nex_u = 0;
   return buf_u;
 }
@@ -321,9 +313,9 @@ _term_it_write_buf(u2_utty* uty_u, uv_buf_t buf_u)
 
   ruq_u->buf_y = (c3_y*)buf_u.base;
 
-  if ( 0 != uv_write(&ruq_u->wri_u, 
+  if ( 0 != uv_write(&ruq_u->wri_u,
                      (uv_stream_t*)&(uty_u->wax_u),
-                     &buf_u, 1, 
+                     &buf_u, 1,
                      _term_write_cb) )
   {
     uL(fprintf(uH, "terminal: %s\n", uv_strerror(uv_last_error(u2L))));
@@ -425,7 +417,7 @@ _term_it_show_wide(u2_utty* uty_u, c3_w len_w, c3_w* txt_w)
 static void
 _term_it_show_clear(u2_utty* uty_u)
 {
-  u2_utat* tat_u = &uty_u->tat_u; 
+  u2_utat* tat_u = &uty_u->tat_u;
 
   if ( tat_u->siz.col_l ) {
     c3_w     ful_w = tat_u->mir.cus_w / tat_u->siz.col_l;
@@ -472,12 +464,22 @@ _term_it_show_cursor(u2_utty* uty_u, c3_w cur_w)
   uty_u->tat_u.mir.cus_w = cur_w;
 }
 
-/* _term_it_show_line(): set current line, transferring pointer.
+/* _term_it_show_line(): set current line
 */
 static void
-_term_it_show_line(u2_utty* uty_u, c3_w len_w, c3_w* lin_w)
+_term_it_show_line(u2_utty* uty_u, u2_noun lin)
 {
-  _term_it_show_clear(uty_u);
+  c3_w    len_w = u2_ckb_lent(u2k(lin));
+  c3_w*   lin_w = malloc(4 * len_w);
+
+  {
+    c3_w i_w;
+
+    for ( i_w = 0; u2_nul != lin; i_w++, lin = u2t(lin) ) {
+      lin_w[i_w] = u2_cr_word(0, u2h(lin));
+    }
+  }
+
   _term_it_show_wide(uty_u, len_w, lin_w);
 
   if ( lin_w != uty_u->tat_u.mir.lin_w ) {
@@ -503,7 +505,11 @@ _term_it_refresh_line(u2_utty* uty_u)
 static void
 _term_it_show_more(u2_utty* uty_u)
 {
-  _term_it_write_str(uty_u, "\r\n");
+  if ( u2_yes == u2_Host.ops_u.dem ) {
+    _term_it_write_str(uty_u, "\n");
+  } else {
+    _term_it_write_str(uty_u, "\r\n");
+  }
   uty_u->tat_u.mir.cus_w = 0;
 }
 
@@ -583,7 +589,7 @@ _term_io_belt(u2_utty* uty_u, u2_noun  blb)
 */
 static void
 _term_io_suck_char(u2_utty* uty_u, c3_y cay_y)
-{ 
+{
   u2_utat* tat_u = &uty_u->tat_u;
 
   // uL(fprintf(uH, "suck-char %x\n", cay_y));
@@ -612,7 +618,7 @@ _term_io_suck_char(u2_utty* uty_u, c3_y cay_y)
       }
       else {
         tat_u->esc.ape = u2_no;
-       
+
         _term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
       }
     }
@@ -670,11 +676,51 @@ _term_io_suck_char(u2_utty* uty_u, c3_y cay_y)
 static void
 _term_ef_poll(u2_utty* uty_u)
 {
-  c3_i evt_i = UV_READABLE | ((0 == uty_u->out_u) ? 0 : UV_WRITABLE);
+  if ( u2_no == u2_Host.ops_u.dem ) {
+    c3_i evt_i = ( ((u2_yes == u2_Host.ops_u.dem) ? 0 : UV_READABLE)
+                 | ((0 == uty_u->out_u) ? 0 : UV_WRITABLE));
 
-  // fprintf(stderr, "ef_poll out_u %p\r\n", uty_u->out_u);
+    // fprintf(stderr, "ef_poll out_u %p\r\n", uty_u->out_u);
 
-  uv_poll_start(&(uty_u->wax_u), evt_i, _term_poll_cb);
+    uv_poll_start(&(uty_u->wax_u), evt_i, _term_poll_cb);
+  }
+}
+
+/* _term_it_do_writes():
+*/
+static void
+_term_it_do_writes(u2_utty* uty_u)
+{
+  while ( uty_u->out_u ) {
+    u2_ubuf* out_u = uty_u->out_u;
+    c3_i     siz_i;
+
+    if ( (siz_i = write(uty_u->fid_i,
+                        uty_u->out_u->hun_y,
+                        uty_u->out_u->len_w)) < 0 ) {
+#if 0
+      if ( EAGAIN == errno ) {
+        break;
+      } else {
+        c3_assert(!"term: write");
+      }
+#else
+      break;
+#endif
+    }
+    if ( siz_i < out_u->len_w ) {
+      _term_it_clip(out_u, siz_i);
+      break;
+    }
+    else {
+      uty_u->out_u = uty_u->out_u->nex_u;
+      if ( 0 == uty_u->out_u ) {
+        c3_assert(out_u == uty_u->tou_u);
+        uty_u->tou_u = 0;
+      }
+      free(out_u);
+    }
+  }
 }
 
 /* _term_poll_cb(): polling with old libev code.
@@ -685,7 +731,7 @@ _term_poll_cb(uv_poll_t* pol_u, c3_i sas_i, c3_i evt_i)
   u2_utty* uty_u = (void*)pol_u;
 
 #if 0
-  fprintf(stderr, "poll_cb read %d, write %d\r\n", 
+  fprintf(stderr, "poll_cb read %d, write %d\r\n",
                   !!(UV_READABLE & evt_i),
                   !!(UV_WRITABLE & evt_i));
 #endif
@@ -716,36 +762,7 @@ _term_poll_cb(uv_poll_t* pol_u, c3_i sas_i, c3_i evt_i)
       }
     }
     if ( UV_WRITABLE & evt_i ) {
-      while ( uty_u->out_u ) {
-        u2_ubuf* out_u = uty_u->out_u;
-        c3_i     siz_i;
-
-        if ( (siz_i = write(uty_u->fid_i, 
-                            uty_u->out_u->hun_y, 
-                            uty_u->out_u->len_w)) < 0 ) {
-#if 0
-          if ( EAGAIN == errno ) {
-            break;
-          } else {
-            c3_assert(!"term: write");
-          }
-#else 
-          break;
-#endif
-        }
-        if ( siz_i < out_u->len_w ) {
-          _term_it_clip(out_u, siz_i);
-          break;
-        }
-        else {
-          uty_u->out_u = uty_u->out_u->nex_u;
-          if ( 0 == uty_u->out_u ) {
-            c3_assert(out_u == uty_u->tou_u);
-            uty_u->tou_u = 0;
-          }
-          free(out_u);
-        }
-      }
+      _term_it_do_writes(uty_u);
     }
     u2_lo_shut(u2_yes);
   }
@@ -756,7 +773,7 @@ _term_poll_cb(uv_poll_t* pol_u, c3_i sas_i, c3_i evt_i)
 /* _term_read_cb(): server read callback.
 */
 static void
-_term_read_cb(uv_stream_t* str_u, 
+_term_read_cb(uv_stream_t* str_u,
               ssize_t      siz_i,
               uv_buf_t     buf_u)
 {
@@ -833,7 +850,7 @@ u2_term_get_blew(c3_l tid_l)
 #else
   {
     c3_i col_i, row_i;
-    
+
     uv_tty_get_winsize(&uty_u->wax_u, &col_i, &row_i);
     col_l = col_i;
     row_l = row_i;
@@ -862,7 +879,7 @@ u2_term_ef_boil(c3_l     old_l,
       u2_noun tin = u2_dc("scot", c3__ud, tid_l);
       u2_noun pax = u2nc(c3__gold, u2nq(c3__term, u2k(oan), tin, u2_nul));
       u2_noun hud = u2nc(c3__wipe, u2_nul);
- 
+
       u2_reck_plan(u2A, pax, hud);
     }
     u2z(oan);
@@ -883,7 +900,7 @@ u2_term_ef_boil(c3_l     old_l,
 /* u2_term_ef_winc(): window change.  Just console right now.
 */
 void
-u2_term_ef_winc(void) 
+u2_term_ef_winc(void)
 {
   u2_noun pax = u2nq(c3__gold, c3__term, '1', u2_nul);
 
@@ -893,7 +910,7 @@ u2_term_ef_winc(void)
 /* u2_term_ef_ctlc(): send ^C on console.
 */
 void
-u2_term_ef_ctlc(void) 
+u2_term_ef_ctlc(void)
 {
   u2_noun pax = u2nq(c3__gold, c3__term, '1', u2_nul);
 
@@ -912,7 +929,7 @@ u2_term_ef_boil(c3_l ono_l)
       u2_noun tin = u2_dc("scot", c3__ud, tid_l);
       u2_noun pax = u2nq(c3__gold, c3__term, tin, u2_nul);
       u2_noun hud = u2nc(c3__wipe, u2_nul);
- 
+
       u2_reck_plan(u2A, pax, hud);
     }
   }
@@ -968,39 +985,47 @@ _term_ef_blit(u2_utty* uty_u,
   switch ( u2h(blt) ) {
     default: break;
     case c3__bel: {
-      _term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
-    } break; 
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        _term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
+      }
+    } break;
 
     case c3__clr: {
-      _term_it_show_blank(uty_u);
-      _term_it_refresh_line(uty_u);
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        _term_it_show_blank(uty_u);
+        _term_it_refresh_line(uty_u);
+      }
     } break;
 
     case c3__hop: {
-      _term_it_show_cursor(uty_u, u2t(blt)); 
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        _term_it_show_cursor(uty_u, u2t(blt));
+      }
     } break;
 
     case c3__lin: {
       u2_noun lin = u2t(blt);
-      c3_w    len_w = u2_ckb_lent(u2k(lin));
-      c3_w*   lin_w = malloc(4 * len_w);
-       
-      {
-        c3_w i_w;
-
-        for ( i_w = 0; u2_nul != lin; i_w++, lin = u2t(lin) ) {
-          lin_w[i_w] = u2_cr_word(0, u2h(lin));
-        }
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        _term_it_show_clear(uty_u);
+        _term_it_show_line(uty_u, lin);
+      } else {
+        uty_u->lin = u2k(lin);
       }
-      _term_it_show_line(uty_u, len_w, lin_w);
     } break;
 
     case c3__mor: {
-      _term_it_show_more(uty_u);
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        _term_it_show_more(uty_u);
+      } else {
+        _term_it_show_line(uty_u, uty_u->lin);
+        uty_u->lin = u2_nul;
+        _term_it_show_more(uty_u);
+        _term_it_do_writes(uty_u);
+      }
     } break;
 
     case c3__sav: {
-      _term_it_save(u2k(u2h(u2t(blt))), u2k(u2t(u2t(blt)))); 
+      _term_it_save(u2k(u2h(u2t(blt))), u2k(u2t(u2t(blt))));
     } break;
   }
   u2z(blt);
@@ -1033,7 +1058,7 @@ u2_term_ef_blit(c3_l     tid_l,
     u2z(bls);
   }
   _term_ef_poll(uty_u);
-} 
+}
 
 /* u2_term_io_hija(): hijack console for fprintf, returning FILE*.
 */
@@ -1047,28 +1072,26 @@ u2_term_io_hija(void)
       //  We *should* in fact, produce some kind of fake FILE* for
       //  non-console terminals.  If we use this interface enough...
       //
-      c3_assert(0);    
+      c3_assert(0);
     }
     else {
-#if 0
-      uv_tty_set_mode(&uty_u->wax_u, 0);
-#else
-      if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->bak_u) ) {
-        c3_assert(!"hija-tcsetattr");
+      if ( u2_no == u2_Host.ops_u.dem ) {
+        if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->bak_u) ) {
+          c3_assert(!"hija-tcsetattr");
+        }
+        if ( -1 == fcntl(1, F_SETFL, uty_u->cug_i) ) {
+          c3_assert(!"hija-fcntl");
+        }
+        if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->bak_u) ) {
+          c3_assert(!"hija-tcsetattr");
+        }
+        if ( -1 == fcntl(0, F_SETFL, uty_u->cug_i) ) {
+          c3_assert(!"hija-fcntl");
+        }
+        write(uty_u->fid_i, "\r", 1);
+        write(uty_u->fid_i, uty_u->ufo_u.out.el_y,
+                            strlen((c3_c*) uty_u->ufo_u.out.el_y));
       }
-      if ( -1 == fcntl(1, F_SETFL, uty_u->cug_i) ) {
-        c3_assert(!"hija-fcntl");
-      }
-      if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->bak_u) ) {
-        c3_assert(!"hija-tcsetattr");
-      }
-      if ( -1 == fcntl(0, F_SETFL, uty_u->cug_i) ) {
-        c3_assert(!"hija-fcntl");
-      }
-#endif
-      write(uty_u->fid_i, "\r", 1);
-      write(uty_u->fid_i, uty_u->ufo_u.out.el_y,
-                             strlen((c3_c*) uty_u->ufo_u.out.el_y));
       return stdout;
     }
   }
@@ -1087,26 +1110,27 @@ u2_term_io_loja(int x)
       //  We *should* in fact, produce some kind of fake FILE* for
       //  non-console terminals.  If we use this interface enough...
       //
-      c3_assert(0);    
+      c3_assert(0);
     }
     else {
-#if 0
-      uv_tty_set_mode(&uty_u->wax_u, 1);
-#else
-      if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->raw_u) ) {
-        c3_assert(!"loja-tcsetattr");
+      if ( u2_yes == u2_Host.ops_u.dem ) {
+        fflush(stdout);
       }
-      if ( -1 == fcntl(1, F_SETFL, uty_u->nob_i) ) {
-        c3_assert(!"loja-fcntl");
+      else {
+        if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->raw_u) ) {
+          c3_assert(!"loja-tcsetattr");
+        }
+        if ( -1 == fcntl(1, F_SETFL, uty_u->nob_i) ) {
+          c3_assert(!"loja-fcntl");
+        }
+        if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->raw_u) ) {
+          c3_assert(!"loja-tcsetattr");
+        }
+        if ( -1 == fcntl(0, F_SETFL, uty_u->nob_i) ) {
+          c3_assert(!"loja-fcntl");
+        }
+        _term_it_refresh_line(uty_u);
       }
-      if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->raw_u) ) {
-        c3_assert(!"loja-tcsetattr");
-      }
-      if ( -1 == fcntl(0, F_SETFL, uty_u->nob_i) ) {
-        c3_assert(!"loja-fcntl");
-      }
-#endif
-      _term_it_refresh_line(uty_u);
     }
   }
 }
diff --git a/v/time.c b/v/time.c
index 72a16bafd..38f1ffd56 100644
--- a/v/time.c
+++ b/v/time.c
@@ -21,7 +21,7 @@
 #include "f/coal.h"
 #include "v/vere.h"
 
-/* u2_time_sec_in(): urbit seconds from unix time.  
+/* u2_time_sec_in(): urbit seconds from unix time.
 **
 ** Adjust for future leap secs!
 */
@@ -31,7 +31,7 @@ u2_time_sec_in(c3_w unx_w)
   return 0x8000000cce9e0d80ULL + (c3_d)unx_w;
 }
 
-/* u2_time_sec_out(): unix time from urbit seconds.  
+/* u2_time_sec_out(): unix time from urbit seconds.
 **
 ** Adjust for future leap secs!
 */
@@ -39,7 +39,7 @@ c3_w
 u2_time_sec_out(c3_d urs_d)
 {
   c3_d adj_d = (urs_d - 0x8000000cce9e0d80ULL);
-      
+
   if ( adj_d > 0xffffffffULL ) {
     fprintf(stderr, "Agh! It's 2106! And no one's fixed this shite!\n");
     exit(1);
@@ -52,8 +52,8 @@ u2_time_sec_out(c3_d urs_d)
 c3_d
 u2_time_fsc_in(c3_w usc_w)
 {
-  c3_d usc_d = usc_w; 
- 
+  c3_d usc_d = usc_w;
+
   return ((usc_d * 65536ULL) / 1000000ULL) << 48ULL;
 }
 
@@ -151,11 +151,11 @@ u2_time_gap_ms(u2_noun now, u2_noun wen)
   if ( u2_no == u2_cka_gth(u2k(wen), u2k(now)) ) {
     u2z(wen); u2z(now);
     return 0ULL;
-  } 
+  }
   else {
     u2_noun dif   = u2_cka_sub(wen, now);
-    c3_d    fsc_d = u2_cr_chub(0, dif); 
-    c3_d    sec_d = u2_cr_chub(1, dif); 
+    c3_d    fsc_d = u2_cr_chub(0, dif);
+    c3_d    sec_d = u2_cr_chub(1, dif);
 
     u2z(dif);
     return (sec_d * 1000ULL) + u2_time_msc_out(fsc_d);
diff --git a/v/unix.c b/v/unix.c
index 843b0e14d..80be91dcb 100644
--- a/v/unix.c
+++ b/v/unix.c
@@ -94,7 +94,7 @@ u2_unix_acquire(c3_c* pax_c)
       c3_w i_w;
 
       if ( -1 != kill(pid_w, SIGTERM) ) {
-        uL(fprintf(uH, "unix: stopping process %d, live in %s...\n", 
+        uL(fprintf(uH, "unix: stopping process %d, live in %s...\n",
                         pid_w, pax_c));
 
         for ( i_w = 0; i_w < 16; i_w++ ) {
@@ -130,7 +130,7 @@ u2_unix_acquire(c3_c* pax_c)
 #if defined(U2_OS_linux)
     fdatasync(fid_i);
 #elif defined(U2_OS_osx)
-    fcntl(fid_i, F_FULLFSYNC); 
+    fcntl(fid_i, F_FULLFSYNC);
 #elif defined(U2_OS_bsd)
     fsync(fid_i);
 #else
@@ -191,8 +191,8 @@ _unix_fs_event_cb(uv_fs_event_t* was_u,
 /* _unix_file_watch(): create file tracker (from filesystem)
 */
 static void
-_unix_file_watch(u2_ufil* fil_u, 
-                 u2_udir* dir_u, 
+_unix_file_watch(u2_ufil* fil_u,
+                 u2_udir* dir_u,
                  c3_c*    pax_c,
                  mpz_t    mod_mp)
 {
@@ -220,7 +220,7 @@ _unix_file_watch(u2_ufil* fil_u,
 /* _unix_file_form(): form a filename path downward.
 */
 static c3_c*
-_unix_file_form(u2_udir* dir_u, 
+_unix_file_form(u2_udir* dir_u,
                 u2_noun  pre,
                 u2_bean  ket,
                 u2_noun  ext)
@@ -272,7 +272,7 @@ _unix_dir_forge(u2_udir* dir_u, u2_udir* par_u, u2_noun tet)
 {
   dir_u->yes = u2_yes;
   dir_u->dry = u2_no;
-  { 
+  {
     c3_c* tet_c = u2_cr_string(tet);
     c3_w  pax_w = strlen(par_u->pax_c);
     c3_w  tet_w = strlen(tet_c);
@@ -401,7 +401,7 @@ _unix_dir_update(u2_udir* dir_u, DIR* rid_u)
 {
   if ( u2_yes == dir_u->dry ) {
     return;
-  } 
+  }
   else {
     //  Update all wet subdirectories.
     //
@@ -442,7 +442,7 @@ _unix_dir_update(u2_udir* dir_u, DIR* rid_u)
       else {
         struct stat buf_u;
 
-        if ( -1 == stat((*fil_u)->pax_c, &buf_u) || 
+        if ( -1 == stat((*fil_u)->pax_c, &buf_u) ||
              !(S_IFREG & buf_u.st_mode) )
         {
           u2_ufil* ded_u = *fil_u;
@@ -468,7 +468,7 @@ _unix_dir_update(u2_udir* dir_u, DIR* rid_u)
       if ( readdir_r(rid_u, &ent_u, &out_u) != 0 ) {
         // uL(fprintf(uH, "%s: %s\n", dir_u->pax_c, strerror(errno)));
         c3_assert(0);
-      } 
+      }
       else if ( !out_u ) {
         break;
       }
@@ -478,12 +478,12 @@ _unix_dir_update(u2_udir* dir_u, DIR* rid_u)
       else {
         c3_c* pax_c = _unix_down(dir_u->pax_c, out_u->d_name);
         struct stat buf_u;
-    
+
         // uL(fprintf(uH, "  in %s\n", pax_c));
         if ( 0 != stat(pax_c, &buf_u) ) {
           free(pax_c);
           continue;
-        } 
+        }
         else {
           if ( !S_ISDIR(buf_u.st_mode) ) {
             mpz_t    mod_mp;
@@ -524,7 +524,7 @@ _unix_dir_update(u2_udir* dir_u, DIR* rid_u)
               dis_u = malloc(sizeof(u2_udir));
 
               // uL(fprintf(uH, "found directory %s\n", pax_c));
-              _unix_dir_watch(dis_u, dir_u, pax_c); 
+              _unix_dir_watch(dis_u, dir_u, pax_c);
               _unix_dir_update(dis_u, red_u);
 
               dis_u->nex_u = dir_u->dis_u;
@@ -553,7 +553,7 @@ _unix_load(c3_c* pax_c)
 
   if ( (fid_i < 0) || (fstat(fid_i, &buf_u) < 0) ) {
     uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
-    c3_assert(0); 
+    c3_assert(0);
     return 0;
   }
   fln_w = buf_u.st_size;
@@ -568,7 +568,7 @@ _unix_load(c3_c* pax_c)
     return 0;
   }
   else {
-    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y); 
+    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y);
     free(pad_y);
 
     return pad;
@@ -634,7 +634,7 @@ _unix_dir_name(u2_udir* dir_u)
 
 /* _unix_file_name(): file name/extension.
 */
-static u2_noun 
+static u2_noun
 _unix_file_name(u2_ufil* fil_u)
 {
   c3_w pel_w = strlen(fil_u->par_u->pax_c);
@@ -642,7 +642,7 @@ _unix_file_name(u2_ufil* fil_u)
 
   if ( !fil_u->dot_c ) {
     return u2_ci_string(pax_c);
-  } 
+  }
   else {
     c3_c* ext_c = fil_u->dot_c + 1;
 
@@ -654,7 +654,7 @@ _unix_file_name(u2_ufil* fil_u)
 
 /* _unix_dir_ankh(): resolve directory to new style ankh.
 */
-static u2_noun 
+static u2_noun
 _unix_dir_ankh(u2_udir* dir_u)
 {
   u2_udir* dis_u;
@@ -691,7 +691,7 @@ _unix_dir_ankh(u2_udir* dir_u)
         ole = elo;
       }
       pam = u2_ckd_by_put(pam, wib, ole);
-    } 
+    }
     else {
       u2_noun fid = u2h(wib);
       u2_noun har = u2t(wib);
@@ -700,8 +700,8 @@ _unix_dir_ankh(u2_udir* dir_u)
 
       if ( u2_none == ole ) {
         ole = u2nt
-          (0, u2_nul, u2_ckd_by_put(u2_nul, 
-                                    u2k(har), 
+          (0, u2_nul, u2_ckd_by_put(u2_nul,
+                                    u2k(har),
                                     u2_do("cosh", u2nt(0, woz, u2_nul))));
         ole = u2_do("cosh", ole);
       }
@@ -735,9 +735,9 @@ _unix_dir_ankh(u2_udir* dir_u)
 /* _unix_desk_peek(): peek for ankh.
 */
 static u2_noun
-_unix_desk_peek(u2_noun who, 
-                u2_noun hox, 
-                u2_noun syd, 
+_unix_desk_peek(u2_noun who,
+                u2_noun hox,
+                u2_noun syd,
                 u2_noun lok)
 {
   u2_noun cay;
@@ -758,8 +758,8 @@ _unix_desk_peek(u2_noun who,
 */
 static void
 _unix_desk_sync_into(u2_noun  who,
-                     u2_noun  hox, 
-                     u2_noun  syd, 
+                     u2_noun  hox,
+                     u2_noun  syd,
                      u2_udir* dir_u)
 {
   u2_noun xun, bur, doz, fav, pax;
@@ -774,7 +774,7 @@ _unix_desk_sync_into(u2_noun  who,
     fav = u2nq(c3__into, who, syd, u2nt(u2_yes, u2_nul, doz));
 
     u2_reck_plan(u2A, pax, fav);
-  } 
+  }
   else {
     u2z(who); u2z(syd); u2z(xun); u2z(bur);
   }
@@ -802,10 +802,10 @@ _unix_ship_update(u2_uhot* hot_u)
       hox = u2_dc("scot", 'p', u2k(who));
     }
 
-    for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) { 
-      u2_noun syd = _unix_dir_name(dis_u); 
+    for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
+      u2_noun syd = _unix_dir_name(dis_u);
 
-      // uL(fprintf(uH, "sync %s %s\n", u2_cr_string(hox), u2_cr_string(syd))); 
+      // uL(fprintf(uH, "sync %s %s\n", u2_cr_string(hox), u2_cr_string(syd)));
       _unix_desk_sync_into(u2k(who), u2k(hox), syd, dis_u);
     }
     u2z(hox);
@@ -873,8 +873,8 @@ _unix_pdir(u2_udir* par_u, u2_noun tet)
   c3_w      tet_w = strlen(tet_c);
   u2_udir** dir_u;
 
-  dir_u = &(par_u->dis_u); 
-  while ( 1 ) { 
+  dir_u = &(par_u->dis_u);
+  while ( 1 ) {
     if ( !*dir_u || !strncmp(((*dir_u)->pax_c + pax_w + 1), tet_c, tet_w) ) {
       free(tet_c); return dir_u;
     }
@@ -892,9 +892,9 @@ _unix_home(u2_noun who)
   mpz_t    who_mp;
 
   u2_cr_mp(who_mp, who);
-  for ( hot_u = unx_u->hot_u; 
+  for ( hot_u = unx_u->hot_u;
         hot_u && (0 != mpz_cmp(who_mp, hot_u->who_mp));
-        hot_u = hot_u->nex_u ) 
+        hot_u = hot_u->nex_u )
   {
     // uL(fprintf(uH, "uh: %p, %s\n", hot_u, hot_u->dir_u.pax_c));
   }
@@ -924,9 +924,9 @@ _unix_desk_sync_tofu(u2_udir* dir_u,
 
   // uL(fprintf(uH, "tofu pox_c %s op %s\n", pox_c, u2_cr_string(u2h(mis))));
 
-  fil_u = &(dir_u->fil_u); 
+  fil_u = &(dir_u->fil_u);
   while ( 1 ) {                               //  XX crude!
-    if ( !*fil_u || 
+    if ( !*fil_u ||
          !strcmp((*fil_u)->pax_c, pox_c) ||
          !strcmp((*fil_u)->pax_c, pux_c) )
     {
@@ -934,7 +934,7 @@ _unix_desk_sync_tofu(u2_udir* dir_u,
     }
     else fil_u = &((*fil_u)->nex_u);
   }
- 
+
   if ( *fil_u && (c3__del == u2h(mis)) ) {
     u2_ufil* ded_u = *fil_u;
 
@@ -956,7 +956,7 @@ _unix_desk_sync_tofu(u2_udir* dir_u,
       god = _unix_desk_sync_udon(u2k(u2t(mis)), old);
       _unix_unlink((*fil_u)->pax_c);
       free((*fil_u)->pax_c);
-    } 
+    }
     else {
       c3_assert(c3__ins == u2h(mis));
       god = u2k(u2t(mis));
@@ -978,7 +978,7 @@ _unix_desk_sync_tofu(u2_udir* dir_u,
 
       mpz_clear((*fil_u)->mod_mp);
       u2_cr_mp((*fil_u)->mod_mp, u2A->now);
-    } 
+    }
     else {
       mpz_t mod_mp;
 
@@ -1003,14 +1003,14 @@ _unix_desk_sync_tako(u2_udir* dir_u, u2_noun pax, u2_noun mis)
     u2z(pax); u2z(mis);
   }
   else {
-    u2_noun i_pax = u2h(pax); 
+    u2_noun i_pax = u2h(pax);
     u2_noun t_pax = u2t(pax);
     u2_noun it_pax = u2h(t_pax);
     u2_noun tt_pax = u2t(t_pax);
 
     if ( u2_nul == tt_pax ) {
       _unix_desk_sync_tofu(dir_u, u2k(i_pax), u2k(it_pax), mis);
-    } 
+    }
     else {
       u2_udir** dis_u = _unix_pdir(dir_u, u2k(i_pax));
 
@@ -1043,10 +1043,10 @@ _unix_desk_sync_soba(u2_udir* dir_u, u2_noun doz)
 */
 static void
 _unix_desk_sync_ergo(u2_noun  who,
-                     u2_noun  hox, 
-                     u2_noun  syd, 
+                     u2_noun  hox,
+                     u2_noun  syd,
                      u2_noun  lok,
-                     u2_uhot* hot_u) 
+                     u2_uhot* hot_u)
 {
   u2_udir** dir_u = _unix_pdir(&(hot_u->dir_u), syd);
   u2_noun   xun;
@@ -1088,8 +1088,8 @@ u2_unix_ef_init(u2_noun who)
   _unix_hot_gain(u2k(who), u2_yes);
 
   u2_reck_plan(u2A, u2nq(c3__gold, c3__sync, u2k(u2A->sen), u2_nul),
-                    u2nq(c3__into, who, 
-                                   u2_blip, 
+                    u2nq(c3__into, who,
+                                   u2_blip,
                                    u2nq(u2_yes, u2_nul,
                                                 u2nc(0, 0), u2_nul)));
 }
@@ -1119,7 +1119,7 @@ u2_unix_ef_look(void)
 {
   u2_unix* unx_u = &u2_Host.unx_u;
   u2_noun  won;
-  u2_uhot* hot_u; 
+  u2_uhot* hot_u;
 
   //  find owners without directories
   {
@@ -1128,7 +1128,7 @@ u2_unix_ef_look(void)
       mpz_t who_mp;
 
       u2_cr_mp(who_mp, who);
-      for ( hot_u = unx_u->hot_u; 
+      for ( hot_u = unx_u->hot_u;
             hot_u && (0 != mpz_cmp(who_mp, hot_u->who_mp));
             hot_u = hot_u->nex_u );
 
@@ -1159,7 +1159,7 @@ u2_unix_ef_look(void)
 
       if ( u2_nul == won ) {
         *het_u = hot_u->nex_u;
- 
+
         // uL(fprintf(uH, "sync: lose %s\n", hot_u->dir_u.pax_c));
         _unix_hot_lose(hot_u);
 
@@ -1207,9 +1207,9 @@ _unix_sign_cb(uv_signal_t* sil_u, c3_i num_i)
     switch ( num_i ) {
       default: fprintf(stderr, "\r\nmysterious signal %d\r\n", num_i); break;
 
-      case SIGTERM: 
+      case SIGTERM:
         fprintf(stderr, "\r\ncaught signal %d\r\n", num_i);
-        u2_Host.liv = u2_no; 
+        u2_Host.liv = u2_no;
         break;
       case SIGINT: u2_term_ef_ctlc(); break;
       case SIGWINCH: u2_term_ef_winc(); break;
@@ -1228,7 +1228,7 @@ u2_unix_ef_hold(void)
   u2_usig* sig_u;
 
   for ( sig_u = unx_u->sig_u; sig_u; sig_u = sig_u->nex_u ) {
-    uv_signal_stop(&sig_u->sil_u); 
+    uv_signal_stop(&sig_u->sil_u);
   }
 }
 
@@ -1241,13 +1241,13 @@ u2_unix_ef_move(void)
   u2_usig* sig_u;
 
   for ( sig_u = unx_u->sig_u; sig_u; sig_u = sig_u->nex_u ) {
-    uv_signal_start(&sig_u->sil_u, _unix_sign_cb, sig_u->num_i); 
+    uv_signal_start(&sig_u->sil_u, _unix_sign_cb, sig_u->num_i);
   }
 }
 
 /* u2_unix_io_init(): initialize unix sync.
 */
-void 
+void
 u2_unix_io_init(void)
 {
   u2_unix* unx_u = &u2_Host.unx_u;
@@ -1303,7 +1303,7 @@ u2_unix_io_init(void)
 
 /* u2_unix_io_exit(): terminate unix I/O.
 */
-void 
+void
 u2_unix_io_exit(void)
 {
   u2_unix_release(u2_Host.cpu_c);
@@ -1324,8 +1324,8 @@ u2_unix_io_poll(void)
 {
   u2_unix* unx_u = &u2_Host.unx_u;
   u2_noun  wen = u2_reck_keep(u2A, u2nt(c3__gold, c3__clay, u2_nul));
- 
-  if ( (u2_nul != wen) && 
+
+  if ( (u2_nul != wen) &&
        (u2_yes == u2du(wen)) &&
        (u2_yes == u2ud(u2t(wen))) )
   {
diff --git a/v/walk.c b/v/walk.c
index 8e90bdbcb..03814ff77 100644
--- a/v/walk.c
+++ b/v/walk.c
@@ -21,7 +21,7 @@
 #include "all.h"
 #include "f/coal.h"
 #include "v/vere.h"
-  
+
   /*  |%
   **  ++  arch                                        ::  fs node
   **            $%  [& p=@uvI q=*]                    ::  file, hash/data
@@ -69,7 +69,7 @@ u2_walk_safe(c3_c* pas_c)
     return 0;
   }
   else {
-    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y); 
+    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y);
     free(pad_y);
 
     return pad;
@@ -101,7 +101,7 @@ u2_walk_load(c3_c* pas_c)
     return u2_cm_bail(c3__fail);
   }
   else {
-    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y); 
+    u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y);
     free(pad_y);
 
     return pad;
@@ -141,7 +141,7 @@ u2_walk_save(c3_c* pas_c, u2_noun tim, u2_atom pad)
 
     u2_time_out_tv(&tim_tv[0], u2k(tim));
     u2_time_out_tv(&tim_tv[1], tim);
- 
+
     utimes(pas_c, tim_tv);
   }
 }
@@ -164,11 +164,11 @@ _walk_in(u2_reck* rec_u, const c3_c* dir_c, c3_w len_w)
     if ( readdir_r(dir_d, &ent_n, &out_n) != 0 ) {
       uL(fprintf(uH, "%s: %s\n", dir_c, strerror(errno)));
       break;
-    } 
+    }
     else if ( !out_n ) {
       break;
     }
-    else if ( !strcmp(out_n->d_name, ".") || 
+    else if ( !strcmp(out_n->d_name, ".") ||
               !strcmp(out_n->d_name, "..") ||
               ('~' == out_n->d_name[0]) ||
               ('.' == out_n->d_name[0]) )     //  XX restricts some spans
@@ -180,7 +180,7 @@ _walk_in(u2_reck* rec_u, const c3_c* dir_c, c3_w len_w)
       c3_w   lef_w = len_w + 1 + strlen(fil_c);
       c3_c*  pat_c = malloc(lef_w + 1);
       struct stat buf_b;
-  
+
       strncpy(pat_c, dir_c, lef_w);
       pat_c[len_w] = '/';
       strncpy(pat_c + len_w + 1, fil_c, lef_w);
@@ -209,7 +209,7 @@ _walk_in(u2_reck* rec_u, const c3_c* dir_c, c3_w len_w)
             }
             hax = u2_do("sham", u2k(dat));
             if ( u2_none == get ) { get = u2_nul; }
-          
+
             get = u2_ckd_by_put(get, ext, u2nt(u2_yes, hax, dat));
             map = u2_ckd_by_put(map, nam, u2nc(u2_no, get));
           }
@@ -249,13 +249,13 @@ u2_walk(u2_reck* rec_u, const c3_c* dir_c, u2_noun old)
       c3_assert(0);
     }
     else {
-      return u2nc(u2_no, 
+      return u2nc(u2_no,
                   _walk_in(rec_u, dir_c, strlen(dir_c)));
     }
   }
 }
 
-/* u2_path(): C unix path in computer for file or directory. 
+/* u2_path(): C unix path in computer for file or directory.
 */
 c3_c*
 u2_path(u2_bean fyl, u2_noun pax)