diff --git a/src/callback.c b/src/callback.c
index 0f6dab6b..e03bacbd 100644
--- a/src/callback.c
+++ b/src/callback.c
@@ -1077,9 +1077,10 @@ int callback(int event, int mx, int my, KeySym key,
     place_net_label(1);
     break;
    }
-   if(key >= '0' && key <= '2' && state == 0) {  /* Toggle pin logic level */
+   if(key >= '0' && key <= '3' && state == 0) {  /* Toggle pin logic level */
     if(xctx->semaphore >= 2) break;
-    logic_set(key - '0');
+    if(key == '3') logic_set(-1, 1);
+    else logic_set(key - '0', 1);
     break;
    }
    if(key=='L' && state == (Mod1Mask | ShiftMask)) {                         /* add pin label*/
diff --git a/src/hilight.c b/src/hilight.c
index 58b73f01..6e240eb3 100644
--- a/src/hilight.c
+++ b/src/hilight.c
@@ -967,7 +967,7 @@ void propagate_logic()
   int found /* , mult */;
   xSymbol *symbol;
   xRect *rct;
-  int i, j, npin;
+  int i, j, npin, nloops=0;
   char *propagate_str = NULL;
   int propagate;
   struct hilight_hashentry  *entry;
@@ -1053,42 +1053,56 @@ void propagate_logic()
   my_free(1222, &propagated_net);
 }
 
-void logic_set(int value)
+void logic_set(int value, int num)
 {
-  int i, n, newvalue;
+  int i, j, n, newval;
   char *type;
   xRect boundbox;
   int big =  xctx->wires> 2000 || xctx->instances > 2000 ;
   static int map[] = {LOGIC_0, LOGIC_1, LOGIC_X};
+  struct hilight_hashentry  *entry;
  
   prepare_netlist_structs(0);
   rebuild_selected_array();
+  newval = value;
   if(!no_draw && !big) {
     calc_drawing_bbox(&boundbox, 2);
     bbox(START, 0.0 , 0.0 , 0.0 , 0.0);
     bbox(ADD, boundbox.x1, boundbox.y1, boundbox.x2, boundbox.y2);
   }
-  for(i=0;i<xctx->lastsel;i++)
-  {
-    n = xctx->sel_array[i].n;
-    switch(xctx->sel_array[i].type) {
-      case WIRE:
-        newvalue = value; /* next logic value  0, 1, 2 (LOGIC_X) */
-        bus_hilight_lookup(xctx->wire[n].node, map[newvalue], XINSERT);
-        break;
-      case ELEMENT:
-        type = (xctx->inst[n].ptr+ xctx->sym)->type;
-        if( type && xctx->inst[n].node && IS_LABEL_SH_OR_PIN(type) ) { /* instance must have a pin! */
-          newvalue = value; /* next logic value  0, 1, 2 (LOGIC_X) */
-          bus_hilight_lookup(xctx->inst[n].node[0], map[newvalue], XINSERT);
-        }
-        break;
-      default:
-        break;
+  for(j = 0; j < num; j++) {
+    for(i=0;i<xctx->lastsel;i++)
+    {
+      n = xctx->sel_array[i].n;
+      switch(xctx->sel_array[i].type) {
+        case WIRE:
+          if(value == -1) {
+            entry = bus_hilight_lookup(xctx->wire[n].node, 0, XLOOKUP);
+            if(entry)
+              newval = (entry->value == LOGIC_1) ? 0 : (entry->value == LOGIC_0) ? 1 : 2;
+            else newval = 2;
+          }
+          bus_hilight_lookup(xctx->wire[n].node, map[newval], XINSERT);
+          break;
+        case ELEMENT:
+          type = (xctx->inst[n].ptr+ xctx->sym)->type;
+          if( type && xctx->inst[n].node && IS_LABEL_SH_OR_PIN(type) ) { /* instance must have a pin! */
+            if(value == -1) {
+              entry = bus_hilight_lookup(xctx->inst[n].node[0], 0, XLOOKUP);
+              if(entry)
+                newval = (entry->value == LOGIC_1) ? 0 : (entry->value == LOGIC_0) ? 1 : 2;
+              else newval = 2;
+            }
+            bus_hilight_lookup(xctx->inst[n].node[0], map[newval], XINSERT);
+          }
+          break;
+        default:
+          break;
+      }
     }
+    propagate_logic();
+    propagate_hilights(1, 0, XINSERT);
   }
-  propagate_logic();
-  propagate_hilights(1, 0, XINSERT);
   if(!no_draw && !big) {
     calc_drawing_bbox(&boundbox, 2);
     bbox(ADD, boundbox.x1, boundbox.y1, boundbox.x2, boundbox.y2);
diff --git a/src/scheduler.c b/src/scheduler.c
index 85322296..d417e57c 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -1433,8 +1433,14 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg
     }
     else if(!strcmp(argv[1],"logic_set"))
     {
+      int num =  1;
       cmd_found = 1;
-      if(argc > 2) logic_set(atoi(argv[2]));
+      if(argc > 3 ) num = atoi(argv[3]);
+      if(argc > 2) {
+        int n = atoi(argv[2]);
+        if(n == 3) n = -1;
+        logic_set(n, num);
+      }
       Tcl_ResetResult(interp);
     }
   }
diff --git a/src/xschem.h b/src/xschem.h
index 0d84234a..ab0b5940 100644
--- a/src/xschem.h
+++ b/src/xschem.h
@@ -1111,7 +1111,7 @@ extern void print_verilog_signals(FILE *fd);
 extern void print_generic(FILE *fd, char *ent_or_comp, int symbol);
 extern void print_verilog_param(FILE *fd, int symbol);
 extern void hilight_net(int to_waveform);
-extern void logic_set(int v);
+extern void logic_set(int v, int num);
 extern int hilight_netname(const char *name);
 extern void unhilight_net();
 extern void propagate_hilights(int set, int clear, int mode);
diff --git a/xschem_library/xschem_simulator/giant_label.sym b/xschem_library/xschem_simulator/giant_label.sym
index d69f65a7..460dfa57 100644
--- a/xschem_library/xschem_simulator/giant_label.sym
+++ b/xschem_library/xschem_simulator/giant_label.sym
@@ -7,4 +7,4 @@ V {}
 S {}
 E {}
 B 5 -1.25 -1.25 1.25 1.25 {name=p dir=in}
-T {@text} -7.5 -8.125 0 1 2 2 {}
+T {@text} -7.5 31.875 0 1 2 2 {}
diff --git a/xschem_library/xschem_simulator/segment.sym b/xschem_library/xschem_simulator/segment.sym
index 9d1a7b10..183363e0 100644
--- a/xschem_library/xschem_simulator/segment.sym
+++ b/xschem_library/xschem_simulator/segment.sym
@@ -7,4 +7,4 @@ V {}
 S {}
 E {}
 B 5 -0.3125 29.6875 0.3125 30.3125 {name=p dir=in}
-P 19 9 0 30 -30 0 -530 0 -560 30 -560 50 -530 80 -30 80 0 50 0 30 {fill=true}
+P 1 9 0 30 -30 0 -530 0 -560 30 -560 50 -530 80 -30 80 0 50 0 30 {fill=true}
diff --git a/xschem_library/xschem_simulator/simulate_ff.sch b/xschem_library/xschem_simulator/simulate_ff.sch
index d5178ba5..3440dfee 100644
--- a/xschem_library/xschem_simulator/simulate_ff.sch
+++ b/xschem_library/xschem_simulator/simulate_ff.sch
@@ -11,7 +11,19 @@ L 4 100 -1470 100 -1390 {}
 L 4 200 -1470 200 -1390 {}
 L 4 100 -1570 100 -1490 {}
 L 4 200 -1570 200 -1490 {}
-B 12 3210 -2700 3930 -1400 {}
+B 12 3920 -2840 4640 -1540 {}
+T {7 Segment Display driver
+and base-10 counter} 1540 -3130 0 0 2.5 2.5 {}
+T {This example shows Xschem (very simple) simulation abilities
+Ctrl-Click to start simulation.
+Xschem will be only partially responsive during simulation.
+Will run for 40 iterations.
+If you need to stop:
+Simulation -> Forced stop tcl scripts} 1730 -750 0 0 1.5 1.5 {}
+T {Cyan: Uninitialized or unknown (X)} 3210 -1190 0 0 1.5 1.5 {layer=1}
+T {Signal colors:} 3130 -1290 0 0 1.5 1.5 {}
+T {Blue: Logic level low (0)} 3210 -1090 0 0 1.5 1.5 {layer=12}
+T {Red: Logic level high (1)} 3210 -990 0 0 1.5 1.5 {layer=5}
 T {
       0 1 2 3 4 5 6 
 ======================
@@ -40,8 +52,6 @@ T {3} 140 -1530 0 0 0.8 0.8 {}
 T {6} 140 -1430 0 0 0.8 0.8 {}
 T {4} 90 -1450 0 1 0.8 0.8 {}
 T {5} 210 -1450 0 0 0.8 0.8 {}
-T {7 Segment Display driver
-and base-10 counter} 1540 -3130 0 0 2.5 2.5 {}
 T {Segment 0} 1190 -2880 0 0 1 1 { layer=4}
 T {Segment 1} 1190 -2400 0 0 1 1 { layer=4}
 T {Segment 2} 1190 -1920 0 0 1 1 { layer=4}
@@ -49,259 +59,305 @@ T {Segment 3} 1190 -1520 0 0 1 1 { layer=4}
 T {Segment 4} 1190 -960 0 0 1 1 { layer=4}
 T {Segment 5} 1190 -560 0 0 1 1 { layer=4}
 T {Segment 6} 1190 -240 0 0 1 1 { layer=4}
-T {This example shows Xschem (very simple) simulation abilities
-Ctrl-Click to start simulation.
-Xschem will be only partially responsive during simulation.
-Will run for 40 iterations.
-If you need to stop:
-Simulation -> Forced stop tcl scripts} 1730 -750 0 0 1.5 1.5 {}
 T {Truth Table} 10 -1730 0 0 1.5 1.5 {layer=4}
-T {Cyan: Uninitialized or unknown (X)} 3210 -1190 0 0 1.5 1.5 {layer=1}
-T {Signal colors:} 3130 -1290 0 0 1.5 1.5 {}
-T {Blue: Logic level low (0)} 3210 -1090 0 0 1.5 1.5 {layer=12}
-T {Red: Logic level high (1)} 3210 -990 0 0 1.5 1.5 {layer=5}
-N 1920 -2060 1920 -1980 { lab=#net1}
-N 1800 -2060 1920 -2060 { lab=#net1}
-N 1800 -2080 1800 -2060 { lab=#net1}
-N 1920 -2240 1920 -2160 { lab=#net2}
-N 1800 -2240 1920 -2240 { lab=#net2}
-N 1800 -2260 1800 -2240 { lab=#net2}
-N 1920 -2420 1920 -2340 { lab=#net3}
-N 1800 -2420 1920 -2420 { lab=#net3}
-N 1800 -2440 1800 -2420 { lab=#net3}
-N 2640 -2460 2700 -2460 { lab=B[3]}
-N 2640 -2560 2640 -2460 { lab=B[3]}
-N 1730 -2560 2640 -2560 { lab=B[3]}
-N 1730 -2560 1730 -2520 { lab=B[3]}
-N 2640 -2280 2700 -2280 { lab=B[2]}
-N 2640 -2380 2640 -2280 { lab=B[2]}
-N 1730 -2380 2640 -2380 { lab=B[2]}
-N 1730 -2380 1730 -2340 { lab=B[2]}
-N 2640 -2100 2700 -2100 { lab=B[1]}
-N 2640 -2200 2640 -2100 { lab=B[1]}
-N 1730 -2200 2640 -2200 { lab=B[1]}
-N 1730 -2200 1730 -2160 { lab=B[1]}
-N 2640 -1920 2700 -1920 { lab=B[0]}
-N 2640 -2020 2640 -1920 { lab=B[0]}
-N 1730 -2020 2640 -2020 { lab=B[0]}
-N 1730 -2020 1730 -1980 { lab=B[0]}
-N 1590 -1990 1590 -1940 { lab=CLEAR_}
-N 1590 -1940 1800 -1940 { lab=CLEAR_}
-N 1670 -2120 1670 -1900 { lab=#net4}
-N 1670 -2120 1800 -2120 { lab=#net4}
-N 1670 -2300 1670 -2120 { lab=#net4}
-N 1670 -2300 1800 -2300 { lab=#net4}
-N 1670 -2480 1670 -2300 { lab=#net4}
-N 1670 -2480 1800 -2480 { lab=#net4}
-N 1670 -1900 1800 -1900 { lab=#net4}
-N 1920 -2520 1940 -2520 { lab=#net5}
-N 1730 -1980 1800 -1980 { lab=B[0]}
-N 1730 -2160 1800 -2160 { lab=B[1]}
-N 1730 -2340 1800 -2340 { lab=B[2]}
-N 1730 -2520 1800 -2520 { lab=B[3]}
-N 1730 -1830 1900 -1830 { lab=BNEXT[3]}
-N 1830 -1790 1900 -1790 { lab=#net6}
-N 1730 -1790 1750 -1790 { lab=BNEXT[2]}
-N 1730 -1750 1900 -1750 { lab=BNEXT[1]}
-N 1730 -1710 1750 -1710 { lab=BNEXT[0]}
-N 1830 -1710 1900 -1710 { lab=#net7}
-N 2620 -2460 2640 -2460 { lab=B[3]}
-N 2620 -2280 2640 -2280 { lab=B[2]}
-N 2620 -2100 2640 -2100 { lab=B[1]}
-N 2620 -1920 2640 -1920 { lab=B[0]}
+N 2340 -2250 2340 -2170 { lab=#net1}
+N 2220 -2250 2340 -2250 { lab=#net1}
+N 2220 -2270 2220 -2250 { lab=#net1}
+N 2340 -2430 2340 -2350 { lab=#net2}
+N 2220 -2430 2340 -2430 { lab=#net2}
+N 2220 -2450 2220 -2430 { lab=#net2}
+N 2340 -2610 2340 -2530 { lab=#net3}
+N 2220 -2610 2340 -2610 { lab=#net3}
+N 2220 -2630 2220 -2610 { lab=#net3}
+N 3630 -2650 3690 -2650 { lab=B[3]}
+N 3630 -2750 3630 -2650 { lab=B[3]}
+N 2150 -2750 3630 -2750 { lab=B[3]}
+N 2150 -2750 2150 -2710 { lab=B[3]}
+N 3630 -2470 3690 -2470 { lab=B[2]}
+N 3630 -2570 3630 -2470 { lab=B[2]}
+N 2150 -2570 3630 -2570 { lab=B[2]}
+N 2150 -2570 2150 -2530 { lab=B[2]}
+N 3630 -2290 3690 -2290 { lab=B[1]}
+N 3630 -2390 3630 -2290 { lab=B[1]}
+N 2150 -2390 3630 -2390 { lab=B[1]}
+N 2150 -2390 2150 -2350 { lab=B[1]}
+N 3630 -2110 3690 -2110 { lab=B[0]}
+N 3630 -2210 3630 -2110 { lab=B[0]}
+N 2150 -2210 3630 -2210 { lab=B[0]}
+N 2150 -2210 2150 -2170 { lab=B[0]}
+N 2010 -2180 2010 -2130 { lab=CLEAR_}
+N 2010 -2130 2220 -2130 { lab=CLEAR_}
+N 2090 -2310 2090 -2090 { lab=#net4}
+N 2090 -2310 2220 -2310 { lab=#net4}
+N 2090 -2490 2090 -2310 { lab=#net4}
+N 2090 -2490 2220 -2490 { lab=#net4}
+N 2090 -2670 2090 -2490 { lab=#net4}
+N 2090 -2670 2220 -2670 { lab=#net4}
+N 2090 -2090 2220 -2090 { lab=#net4}
+N 2340 -2710 2360 -2710 { lab=#net5}
+N 2150 -2170 2220 -2170 { lab=B[0]}
+N 2150 -2350 2220 -2350 { lab=B[1]}
+N 2150 -2530 2220 -2530 { lab=B[2]}
+N 2150 -2710 2220 -2710 { lab=B[3]}
+N 3610 -2650 3630 -2650 { lab=B[3]}
+N 3610 -2470 3630 -2470 { lab=B[2]}
+N 3610 -2290 3630 -2290 { lab=B[1]}
+N 3610 -2110 3630 -2110 { lab=B[0]}
+N 2760 -2630 3430 -2630 { lab=#net6}
+N 2490 -2650 2640 -2650 { lab=BNEXT[3]}
+N 2490 -2650 2490 -2630 { lab=BNEXT[3]}
+N 2340 -2630 2490 -2630 { lab=BNEXT[3]}
+N 2760 -2450 3430 -2450 { lab=#net7}
+N 2490 -2470 2640 -2470 { lab=BNEXT[2]}
+N 2490 -2470 2490 -2450 { lab=BNEXT[2]}
+N 2340 -2450 2490 -2450 { lab=BNEXT[2]}
+N 2760 -2270 3430 -2270 { lab=#net8}
+N 2490 -2290 2640 -2290 { lab=BNEXT[1]}
+N 2490 -2290 2490 -2270 { lab=BNEXT[1]}
+N 2340 -2270 2490 -2270 { lab=BNEXT[1]}
+N 2760 -2090 3430 -2090 { lab=#net9}
+N 2490 -2110 2640 -2110 { lab=BNEXT[0]}
+N 2490 -2110 2490 -2090 { lab=BNEXT[0]}
+N 2340 -2090 2490 -2090 { lab=BNEXT[0]}
+N 2480 -1960 2580 -1960 { lab=#net10}
+N 2580 -2070 2580 -1960 { lab=#net10}
+N 2580 -2610 2640 -2610 { lab=#net10}
+N 2580 -2430 2640 -2430 { lab=#net10}
+N 2580 -2250 2640 -2250 { lab=#net10}
+N 2580 -2070 2640 -2070 { lab=#net10}
+N 1910 -1430 3260 -1430 { lab=CLK}
+N 2290 -1920 2320 -1920 { lab=BNEXT[3]}
+N 2290 -1960 2320 -1960 { lab=BNEXT[1]}
+N 2290 -2000 2320 -2000 { lab=BNEXT[2]}
+N 3260 -2650 3430 -2650 { lab=CLK}
+N 3260 -2650 3260 -1430 { lab=CLK}
+N 2580 -2610 2580 -2430 { lab=#net10}
+N 2580 -2430 2580 -2250 { lab=#net10}
+N 2580 -2250 2580 -2070 { lab=#net10}
 N 520 -3140 520 -10 { lab=B[3]}
 N 520 -3140 550 -3140 { lab=B[3]}
 N 600 -3140 630 -3140 { lab=B[2]}
 N 680 -3140 710 -3140 { lab=B[1]}
 N 760 -3140 790 -3140 { lab=B[0]}
-N 550 -640 880 -640 { lab=#net8}
-N 630 -600 880 -600 { lab=#net9}
+N 550 -640 880 -640 { lab=#net11}
+N 630 -600 880 -600 { lab=#net12}
 N 680 -560 880 -560 { lab=B[1]}
-N 790 -520 880 -520 { lab=#net10}
+N 790 -520 880 -520 { lab=#net13}
 N 1000 -580 1230 -580 { lab=S[5]}
 N 520 -3160 520 -3140 { lab=B[3]}
 N 600 -3160 600 -3140 { lab=B[2]}
 N 680 -3160 680 -3140 { lab=B[1]}
 N 760 -3160 760 -3140 { lab=B[0]}
-N 550 -3040 880 -3040 { lab=#net8}
-N 630 -3000 880 -3000 { lab=#net9}
-N 710 -2960 880 -2960 { lab=#net11}
+N 550 -3040 880 -3040 { lab=#net11}
+N 630 -3000 880 -3000 { lab=#net12}
+N 710 -2960 880 -2960 { lab=#net14}
 N 760 -2920 880 -2920 { lab=B[0]}
-N 550 -2880 880 -2880 { lab=#net8}
+N 550 -2880 880 -2880 { lab=#net11}
 N 600 -2840 880 -2840 { lab=B[2]}
-N 710 -2800 880 -2800 { lab=#net11}
-N 790 -2760 880 -2760 { lab=#net10}
-N 1020 -2920 1050 -2920 { lab=#net12}
-N 1020 -2980 1020 -2920 { lab=#net12}
-N 1000 -2980 1020 -2980 { lab=#net12}
-N 1020 -2880 1050 -2880 { lab=#net13}
-N 1020 -2880 1020 -2820 { lab=#net13}
-N 1000 -2820 1020 -2820 { lab=#net13}
+N 710 -2800 880 -2800 { lab=#net14}
+N 790 -2760 880 -2760 { lab=#net13}
+N 1020 -2920 1050 -2920 { lab=#net15}
+N 1020 -2980 1020 -2920 { lab=#net15}
+N 1000 -2980 1020 -2980 { lab=#net15}
+N 1020 -2880 1050 -2880 { lab=#net16}
+N 1020 -2880 1020 -2820 { lab=#net16}
+N 1000 -2820 1020 -2820 { lab=#net16}
 N 1170 -2900 1230 -2900 { lab=S[0]}
-N 550 -2560 880 -2560 { lab=#net8}
-N 630 -2520 880 -2520 { lab=#net9}
+N 550 -2560 880 -2560 { lab=#net11}
+N 630 -2520 880 -2520 { lab=#net12}
 N 680 -2480 880 -2480 { lab=B[1]}
-N 790 -2440 880 -2440 { lab=#net10}
-N 550 -2400 880 -2400 { lab=#net8}
-N 630 -2360 880 -2360 { lab=#net9}
+N 790 -2440 880 -2440 { lab=#net13}
+N 550 -2400 880 -2400 { lab=#net11}
+N 630 -2360 880 -2360 { lab=#net12}
 N 680 -2320 880 -2320 { lab=B[1]}
 N 760 -2280 880 -2280 { lab=B[0]}
-N 550 -2240 880 -2240 { lab=#net8}
+N 550 -2240 880 -2240 { lab=#net11}
 N 600 -2200 880 -2200 { lab=B[2]}
 N 680 -2160 880 -2160 { lab=B[1]}
 N 760 -2120 880 -2120 { lab=B[0]}
-N 550 -2720 880 -2720 { lab=#net8}
-N 630 -2680 880 -2680 { lab=#net9}
-N 710 -2640 880 -2640 { lab=#net11}
+N 550 -2720 880 -2720 { lab=#net11}
+N 630 -2680 880 -2680 { lab=#net12}
+N 710 -2640 880 -2640 { lab=#net14}
 N 760 -2600 880 -2600 { lab=B[0]}
-N 1000 -2660 1050 -2660 { lab=#net14}
-N 1000 -2500 1020 -2500 { lab=#net15}
-N 1000 -2340 1020 -2340 { lab=#net16}
-N 1000 -2180 1050 -2180 { lab=#net17}
-N 1050 -2660 1050 -2480 { lab=#net14}
-N 1020 -2500 1020 -2440 { lab=#net15}
-N 1020 -2440 1050 -2440 { lab=#net15}
-N 1020 -2400 1050 -2400 { lab=#net16}
-N 1020 -2400 1020 -2340 { lab=#net16}
-N 1050 -2360 1050 -2180 { lab=#net17}
+N 1000 -2660 1050 -2660 { lab=#net17}
+N 1000 -2500 1020 -2500 { lab=#net18}
+N 1000 -2340 1020 -2340 { lab=#net19}
+N 1000 -2180 1050 -2180 { lab=#net20}
+N 1050 -2660 1050 -2480 { lab=#net17}
+N 1020 -2500 1020 -2440 { lab=#net18}
+N 1020 -2440 1050 -2440 { lab=#net18}
+N 1020 -2400 1050 -2400 { lab=#net19}
+N 1020 -2400 1020 -2340 { lab=#net19}
+N 1050 -2360 1050 -2180 { lab=#net20}
 N 1170 -2420 1230 -2420 { lab=S[1]}
-N 550 -2080 880 -2080 { lab=#net8}
+N 550 -2080 880 -2080 { lab=#net11}
 N 600 -2040 880 -2040 { lab=B[2]}
-N 710 -2000 880 -2000 { lab=#net11}
+N 710 -2000 880 -2000 { lab=#net14}
 N 760 -1960 880 -1960 { lab=B[0]}
-N 550 -1920 880 -1920 { lab=#net8}
+N 550 -1920 880 -1920 { lab=#net11}
 N 600 -1880 880 -1880 { lab=B[2]}
 N 680 -1840 880 -1840 { lab=B[1]}
-N 790 -1800 880 -1800 { lab=#net10}
-N 1020 -1960 1050 -1960 { lab=#net18}
-N 1020 -2020 1020 -1960 { lab=#net18}
-N 1000 -2020 1020 -2020 { lab=#net18}
-N 1020 -1920 1050 -1920 { lab=#net19}
-N 1020 -1920 1020 -1860 { lab=#net19}
-N 1000 -1860 1020 -1860 { lab=#net19}
+N 790 -1800 880 -1800 { lab=#net13}
+N 1020 -1960 1050 -1960 { lab=#net21}
+N 1020 -2020 1020 -1960 { lab=#net21}
+N 1000 -2020 1020 -2020 { lab=#net21}
+N 1020 -1920 1050 -1920 { lab=#net22}
+N 1020 -1920 1020 -1860 { lab=#net22}
+N 1000 -1860 1020 -1860 { lab=#net22}
 N 1170 -1940 1230 -1940 { lab=S[2]}
-N 550 -1760 880 -1760 { lab=#net8}
-N 630 -1720 880 -1720 { lab=#net9}
-N 710 -1680 880 -1680 { lab=#net11}
-N 790 -1640 880 -1640 { lab=#net10}
-N 1000 -1700 1050 -1700 { lab=#net20}
-N 550 -1600 880 -1600 { lab=#net8}
-N 630 -1560 880 -1560 { lab=#net9}
-N 710 -1520 880 -1520 { lab=#net11}
-N 1000 -1540 1050 -1540 { lab=#net21}
-N 550 -1440 880 -1440 { lab=#net8}
+N 550 -1760 880 -1760 { lab=#net11}
+N 630 -1720 880 -1720 { lab=#net12}
+N 710 -1680 880 -1680 { lab=#net14}
+N 790 -1640 880 -1640 { lab=#net13}
+N 1000 -1700 1050 -1700 { lab=#net23}
+N 550 -1600 880 -1600 { lab=#net11}
+N 630 -1560 880 -1560 { lab=#net12}
+N 710 -1520 880 -1520 { lab=#net14}
+N 1000 -1540 1050 -1540 { lab=#net24}
+N 550 -1440 880 -1440 { lab=#net11}
 N 600 -1400 880 -1400 { lab=B[2]}
 N 680 -1360 880 -1360 { lab=B[1]}
 N 760 -1320 880 -1320 { lab=B[0]}
-N 1000 -1380 1050 -1380 { lab=#net22}
-N 1050 -1700 1050 -1580 { lab=#net20}
-N 1050 -1500 1050 -1380 { lab=#net22}
-N 550 -3060 550 -10 { lab=#net8}
-N 630 -3060 630 -10 { lab=#net9}
-N 710 -3060 710 -10 { lab=#net11}
+N 1000 -1380 1050 -1380 { lab=#net25}
+N 1050 -1700 1050 -1580 { lab=#net23}
+N 1050 -1500 1050 -1380 { lab=#net25}
+N 550 -3060 550 -10 { lab=#net11}
+N 630 -3060 630 -10 { lab=#net12}
+N 710 -3060 710 -10 { lab=#net14}
 N 760 -3140 760 -10 { lab=B[0]}
 N 600 -3140 600 -10 { lab=B[2]}
-N 790 -3060 790 -10 { lab=#net10}
+N 790 -3060 790 -10 { lab=#net13}
 N 680 -3140 680 -10 { lab=B[1]}
 N 760 -1480 880 -1480 { lab=B[0]}
 N 1170 -1540 1230 -1540 { lab=S[3]}
-N 550 -1280 880 -1280 { lab=#net8}
-N 630 -1240 880 -1240 { lab=#net9}
-N 710 -1200 880 -1200 { lab=#net11}
-N 790 -1160 880 -1160 { lab=#net10}
-N 1000 -1220 1050 -1220 { lab=#net23}
-N 550 -1120 880 -1120 { lab=#net8}
-N 630 -1080 880 -1080 { lab=#net9}
+N 550 -1280 880 -1280 { lab=#net11}
+N 630 -1240 880 -1240 { lab=#net12}
+N 710 -1200 880 -1200 { lab=#net14}
+N 790 -1160 880 -1160 { lab=#net13}
+N 1000 -1220 1050 -1220 { lab=#net26}
+N 550 -1120 880 -1120 { lab=#net11}
+N 630 -1080 880 -1080 { lab=#net12}
 N 680 -1040 880 -1040 { lab=B[1]}
-N 790 -1000 880 -1000 { lab=#net10}
-N 1000 -1060 1020 -1060 { lab=#net24}
-N 550 -960 880 -960 { lab=#net8}
+N 790 -1000 880 -1000 { lab=#net13}
+N 1000 -1060 1020 -1060 { lab=#net27}
+N 550 -960 880 -960 { lab=#net11}
 N 600 -920 880 -920 { lab=B[2]}
 N 680 -880 880 -880 { lab=B[1]}
-N 790 -840 880 -840 { lab=#net10}
-N 1000 -900 1020 -900 { lab=#net25}
+N 790 -840 880 -840 { lab=#net13}
+N 1000 -900 1020 -900 { lab=#net28}
 N 520 -800 880 -800 { lab=B[3]}
-N 630 -760 880 -760 { lab=#net9}
-N 710 -720 880 -720 { lab=#net11}
-N 790 -680 880 -680 { lab=#net10}
-N 1000 -740 1050 -740 { lab=#net26}
-N 1050 -920 1050 -740 { lab=#net26}
-N 1050 -1220 1050 -1040 { lab=#net23}
-N 1020 -1000 1050 -1000 { lab=#net24}
-N 1020 -1060 1020 -1000 { lab=#net24}
-N 1020 -960 1050 -960 { lab=#net25}
-N 1020 -960 1020 -900 { lab=#net25}
+N 630 -760 880 -760 { lab=#net12}
+N 710 -720 880 -720 { lab=#net14}
+N 790 -680 880 -680 { lab=#net13}
+N 1000 -740 1050 -740 { lab=#net29}
+N 1050 -920 1050 -740 { lab=#net29}
+N 1050 -1220 1050 -1040 { lab=#net26}
+N 1020 -1000 1050 -1000 { lab=#net27}
+N 1020 -1060 1020 -1000 { lab=#net27}
+N 1020 -960 1050 -960 { lab=#net28}
+N 1020 -960 1020 -900 { lab=#net28}
 N 1170 -980 1230 -980 { lab=S[4]}
-N 550 -480 880 -480 { lab=#net8}
-N 630 -440 880 -440 { lab=#net9}
-N 710 -400 880 -400 { lab=#net11}
+N 550 -480 880 -480 { lab=#net11}
+N 630 -440 880 -440 { lab=#net12}
+N 710 -400 880 -400 { lab=#net14}
 N 760 -360 880 -360 { lab=B[0]}
-N 1000 -420 1050 -420 { lab=#net27}
-N 550 -320 880 -320 { lab=#net8}
+N 1000 -420 1050 -420 { lab=#net30}
+N 550 -320 880 -320 { lab=#net11}
 N 600 -280 880 -280 { lab=B[2]}
-N 710 -240 880 -240 { lab=#net11}
-N 1000 -260 1050 -260 { lab=#net28}
-N 550 -160 880 -160 { lab=#net8}
+N 710 -240 880 -240 { lab=#net14}
+N 1000 -260 1050 -260 { lab=#net31}
+N 550 -160 880 -160 { lab=#net11}
 N 600 -120 880 -120 { lab=B[2]}
 N 680 -80 880 -80 { lab=B[1]}
 N 760 -40 880 -40 { lab=B[0]}
-N 1000 -100 1050 -100 { lab=#net29}
-N 1050 -420 1050 -300 { lab=#net27}
-N 1050 -220 1050 -100 { lab=#net29}
-N 790 -200 880 -200 { lab=#net10}
+N 1000 -100 1050 -100 { lab=#net32}
+N 1050 -420 1050 -300 { lab=#net30}
+N 1050 -220 1050 -100 { lab=#net32}
+N 790 -200 880 -200 { lab=#net13}
 N 1170 -260 1230 -260 { lab=S[6]}
-N 2020 -1770 2060 -1770 { lab=#net30}
-N 2340 -2440 2440 -2440 { lab=#net31}
-N 2070 -2460 2220 -2460 { lab=BNEXT[3]}
-N 2070 -2460 2070 -2440 { lab=BNEXT[3]}
-N 1920 -2440 2070 -2440 { lab=BNEXT[3]}
-N 2340 -2260 2440 -2260 { lab=#net32}
-N 2070 -2280 2220 -2280 { lab=BNEXT[2]}
-N 2070 -2280 2070 -2260 { lab=BNEXT[2]}
-N 1920 -2260 2070 -2260 { lab=BNEXT[2]}
-N 2340 -2080 2440 -2080 { lab=#net33}
-N 2070 -2100 2220 -2100 { lab=BNEXT[1]}
-N 2070 -2100 2070 -2080 { lab=BNEXT[1]}
-N 1920 -2080 2070 -2080 { lab=BNEXT[1]}
-N 2340 -1900 2440 -1900 { lab=#net34}
-N 2070 -1920 2220 -1920 { lab=BNEXT[0]}
-N 2070 -1920 2070 -1900 { lab=BNEXT[0]}
-N 1920 -1900 2070 -1900 { lab=BNEXT[0]}
-N 2060 -1770 2160 -1770 { lab=#net30}
-N 2160 -2420 2160 -1770 { lab=#net30}
-N 2160 -2420 2220 -2420 { lab=#net30}
-N 2160 -2240 2220 -2240 { lab=#net30}
-N 2160 -2060 2220 -2060 { lab=#net30}
-N 2160 -1880 2220 -1880 { lab=#net30}
-N 1760 -1010 1890 -1010 { lab=CLK}
-N 1760 -1180 1890 -1180 { lab=CLEAR_}
+N 3260 -2470 3430 -2470 { lab=CLK}
+N 3260 -2290 3430 -2290 { lab=CLK}
+N 3260 -2110 3430 -2110 { lab=CLK}
+N 2600 -1360 3320 -1360 { lab=CLEAR_}
+N 2600 -1360 2600 -1180 { lab=CLEAR_}
+N 1900 -1180 2600 -1180 { lab=CLEAR_}
+N 3320 -2610 3430 -2610 { lab=CLEAR_}
+N 3320 -2610 3320 -1360 { lab=CLEAR_}
+N 3320 -2430 3430 -2430 { lab=CLEAR_}
+N 3320 -2250 3430 -2250 { lab=CLEAR_}
+N 3320 -2070 3430 -2070 { lab=CLEAR_}
 C {title.sym} 1350 -50 0 0 {name=l38 author="Stefan Schippers"}
-C {fa_1.sym} 1860 -2480 0 0 {name=x28 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {fa_1.sym} 1860 -2300 0 0 {name=x33 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {fa_1.sym} 1860 -2120 0 0 {name=x34 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {fa_1.sym} 1860 -1940 0 0 {name=x35 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {dfrtp_1.sym} 2530 -2440 0 0 {name=x36 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 2440 -2460 0 0 {name=l32 sig_type=std_logic lab=CLK}
-C {lab_pin.sym} 2440 -2420 0 0 {name=l33 sig_type=std_logic lab=CLEAR_}
-C {lab_pin.sym} 2700 -2460 0 1 {name=l34 sig_type=std_logic lab=B[3]}
-C {dfrtp_1.sym} 2530 -2260 0 0 {name=x37 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 2440 -2280 0 0 {name=l35 sig_type=std_logic lab=CLK}
-C {lab_pin.sym} 2440 -2240 0 0 {name=l36 sig_type=std_logic lab=CLEAR_}
-C {lab_pin.sym} 2700 -2280 0 1 {name=l37 sig_type=std_logic lab=B[2]}
-C {dfrtp_1.sym} 2530 -2080 0 0 {name=x53 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 2440 -2100 0 0 {name=l39 sig_type=std_logic lab=CLK}
-C {lab_pin.sym} 2440 -2060 0 0 {name=l40 sig_type=std_logic lab=CLEAR_}
-C {lab_pin.sym} 2700 -2100 0 1 {name=l41 sig_type=std_logic lab=B[1]}
-C {dfrtp_1.sym} 2530 -1900 0 0 {name=x54 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 2440 -1920 0 0 {name=l42 sig_type=std_logic lab=CLK}
-C {lab_pin.sym} 2440 -1880 0 0 {name=l43 sig_type=std_logic lab=CLEAR_}
-C {lab_pin.sym} 2700 -1920 0 1 {name=l44 sig_type=std_logic lab=B[0]}
-C {inv_2.sym} 1630 -1990 0 0 {name=x55 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 1590 -1990 0 0 {name=l45 sig_type=std_logic lab=CLEAR_}
-C {noconn.sym} 1940 -2520 0 1 {name=l46}
-C {nand4_1.sym} 1960 -1770 0 0 {name=x56 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {inv_2.sym} 1790 -1790 0 0 {name=x57 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {inv_2.sym} 1790 -1710 0 0 {name=x58 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {fa_1.sym} 2280 -2670 0 0 {name=x28 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {fa_1.sym} 2280 -2490 0 0 {name=x33 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {fa_1.sym} 2280 -2310 0 0 {name=x34 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {fa_1.sym} 2280 -2130 0 0 {name=x35 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {dfrtp_1.sym} 3520 -2630 0 0 {name=x36 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 3690 -2650 0 1 {name=l34 sig_type=std_logic lab=B[3]}
+C {dfrtp_1.sym} 3520 -2450 0 0 {name=x37 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 3690 -2470 0 1 {name=l37 sig_type=std_logic lab=B[2]}
+C {dfrtp_1.sym} 3520 -2270 0 0 {name=x53 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 3690 -2290 0 1 {name=l41 sig_type=std_logic lab=B[1]}
+C {dfrtp_1.sym} 3520 -2090 0 0 {name=x54 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 3690 -2110 0 1 {name=l44 sig_type=std_logic lab=B[0]}
+C {inv_2.sym} 2050 -2180 0 0 {name=x55 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 2010 -2180 0 0 {name=l45 sig_type=std_logic lab=CLEAR_}
+C {noconn.sym} 2360 -2710 0 1 {name=l46}
+C {and2_1.sym} 2700 -2630 0 0 {name=x59 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {and2_1.sym} 2700 -2450 0 0 {name=x60 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {and2_1.sym} 2700 -2270 0 0 {name=x61 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {and2_1.sym} 2700 -2090 0 0 {name=x62 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 2490 -2650 0 0 {name=l51 sig_type=std_logic lab=BNEXT[3]}
+C {lab_pin.sym} 2490 -2470 0 0 {name=l52 sig_type=std_logic lab=BNEXT[2]}
+C {lab_pin.sym} 2490 -2290 0 0 {name=l53 sig_type=std_logic lab=BNEXT[1]}
+C {lab_pin.sym} 2490 -2110 0 0 {name=l54 sig_type=std_logic lab=BNEXT[0]}
+C {launcher.sym} 1840 -130 0 0 {name=h3
+descr="START SIMULATION" 
+comment="
+  This launcher Starts a simple interactive simulation of the LFSR
+"
+tclcommand="  set count 0
+  set duration 1000
+  xschem select instance p8  ;# CLEAR_
+  xschem select instance p9  ;# CLK
+  xschem logic_set 0         ;# reset pulse (active low) 
+  update ;# allow event loop to come in (update screen, user input etc)
+  after $duration
+  xschem select instance p9 clear ;# release CLK
+  xschem logic_set 1
+  xschem select instance p8 clear ;# release CLEAR_
+  xschem select instance p9  ;# CLK
+  update ;# allow event loop to come in (update screen, user input etc) 
+  set logic_value 0
+  while \{1\} \{
+    update ;# allow event loop to come in (update screen, user input etc) 
+    incr count
+    if \{$count>100 || $tclstop == 1\} break
+    puts \\"simulating: loop $count\\"
+    xschem logic_set $logic_value
+    after $duration
+    set logic_value [expr !$logic_value]
+    set duration [expr int($duration/1.05)]
+  \}
+"
+}
+C {inv_2.sym} 2620 -1960 0 0 {name=x1 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {giant_label.sym} 2040 -1430 0 1 {name=l1 sig_type=std_logic lab=CLK text=CLK}
+C {giant_label.sym} 2660 -1960 0 1 {name=l3 sig_type=std_logic lab=R text="RESET
+COUNTER"}
+C {giant_label.sym} 1900 -1180 0 1 {name=l4 sig_type=std_logic lab=CLEAR_ text="CLEAR (active low)"}
+C {segment.sym} 4560 -2230 0 0 {name=l6 sig_type=std_logic lab=S[3]}
+C {segment.sym} 4030 -2200 1 0 {name=l2 sig_type=std_logic lab=S[1]}
+C {segment.sym} 4530 -2200 3 1 {name=l5 sig_type=std_logic lab=S[2]}
+C {segment.sym} 4560 -2810 0 0 {name=l7 sig_type=std_logic lab=S[0]}
+C {segment.sym} 4530 -2180 3 0 {name=l8 sig_type=std_logic lab=S[5]}
+C {segment.sym} 4030 -2180 1 1 {name=l9 sig_type=std_logic lab=S[4]}
+C {segment.sym} 4000 -1570 2 0 {name=l10 sig_type=std_logic lab=S[6]}
+C {ipin.sym} 1900 -1180 0 0 {name=p8 sig_type=std_logic lab=CLEAR_}
+C {ipin.sym} 1910 -1430 0 0 {name=p9 sig_type=std_logic lab=CLK}
+C {o21ai_1.sym} 2400 -1960 0 0 {name=x2 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
+C {lab_pin.sym} 2290 -1920 0 0 {name=l11 sig_type=std_logic lab=BNEXT[3]}
+C {lab_pin.sym} 2290 -2000 0 0 {name=l12 sig_type=std_logic lab=BNEXT[2]}
+C {lab_pin.sym} 2290 -1960 0 0 {name=l13 sig_type=std_logic lab=BNEXT[1]}
 C {inv_2.sym} 550 -3100 3 1 {name=x22 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
 C {lab_pin.sym} 520 -3160 0 0 {name=l19 sig_type=std_logic lab=B[3]}
 C {inv_2.sym} 630 -3100 3 1 {name=x23 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
@@ -342,59 +398,3 @@ C {nand4_1.sym} 940 -260 0 0 {name=x30 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefi
 C {nand4_1.sym} 940 -100 0 0 {name=x31 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
 C {and3_1.sym} 1110 -260 0 0 {name=x32 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
 C {lab_pin.sym} 1230 -260 0 1 {name=p7 lab=S[6]}
-C {and2_1.sym} 2280 -2440 0 0 {name=x59 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {and2_1.sym} 2280 -2260 0 0 {name=x60 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {and2_1.sym} 2280 -2080 0 0 {name=x61 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {and2_1.sym} 2280 -1900 0 0 {name=x62 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {lab_pin.sym} 2070 -2460 0 0 {name=l51 sig_type=std_logic lab=BNEXT[3]}
-C {lab_pin.sym} 2070 -2280 0 0 {name=l52 sig_type=std_logic lab=BNEXT[2]}
-C {lab_pin.sym} 2070 -2100 0 0 {name=l53 sig_type=std_logic lab=BNEXT[1]}
-C {lab_pin.sym} 2070 -1920 0 0 {name=l54 sig_type=std_logic lab=BNEXT[0]}
-C {lab_pin.sym} 1730 -1830 0 0 {name=l55 sig_type=std_logic lab=BNEXT[3]}
-C {lab_pin.sym} 1730 -1790 0 0 {name=l56 sig_type=std_logic lab=BNEXT[2]}
-C {lab_pin.sym} 1730 -1750 0 0 {name=l57 sig_type=std_logic lab=BNEXT[1]}
-C {lab_pin.sym} 1730 -1710 0 0 {name=l58 sig_type=std_logic lab=BNEXT[0]}
-C {launcher.sym} 1840 -130 0 0 {name=h3
-descr="START SIMULATION" 
-comment="
-  This launcher Starts a simple interactive simulation of the LFSR
-"
-tclcommand="  set count 0
-  set duration 1000
-  xschem select instance p8  ;# CLEAR_
-  xschem select instance p9  ;# CLK
-  xschem logic_set 0         ;# reset pulse (active low) 
-  update ;# allow event loop to come in (update screen, user input etc)
-  after $duration
-  xschem select instance p9 clear ;# release CLK
-  xschem logic_set 1
-  xschem select instance p8 clear ;# release CLEAR_
-  xschem select instance p9  ;# CLK
-  update ;# allow event loop to come in (update screen, user input etc) 
-  set logic_value 0
-  while \{1\} \{
-    update ;# allow event loop to come in (update screen, user input etc) 
-    incr count
-    if \{$count>100 || $tclstop == 1\} break
-    puts \\"simulating: loop $count\\"
-    xschem logic_set $logic_value
-    after $duration
-    set logic_value [expr !$logic_value]
-    set duration [expr int($duration/1.05)]
-  \}
-"
-}
-C {inv_2.sym} 2200 -1770 0 0 {name=x1 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
-C {giant_label.sym} 1890 -1010 0 1 {name=l1 sig_type=std_logic lab=CLK text=CLK}
-C {giant_label.sym} 2240 -1770 0 1 {name=l3 sig_type=std_logic lab=R text="RESET
-COUNTER"}
-C {giant_label.sym} 1890 -1180 0 1 {name=l4 sig_type=std_logic lab=CLEAR_ text="CLEAR (active low)"}
-C {segment.sym} 3850 -2090 0 0 {name=l6 sig_type=std_logic lab=S[3]}
-C {segment.sym} 3320 -2060 1 0 {name=l2 sig_type=std_logic lab=S[1]}
-C {segment.sym} 3820 -2060 3 1 {name=l5 sig_type=std_logic lab=S[2]}
-C {segment.sym} 3850 -2670 0 0 {name=l7 sig_type=std_logic lab=S[0]}
-C {segment.sym} 3820 -2040 3 0 {name=l8 sig_type=std_logic lab=S[5]}
-C {segment.sym} 3320 -2040 1 1 {name=l9 sig_type=std_logic lab=S[4]}
-C {segment.sym} 3290 -1430 2 0 {name=l10 sig_type=std_logic lab=S[6]}
-C {ipin.sym} 1760 -1180 0 0 {name=p8 sig_type=std_logic lab=CLEAR_}
-C {ipin.sym} 1760 -1010 0 0 {name=p9 sig_type=std_logic lab=CLK}