mux simulation operator: set "X" instead of "Z" if select not "0" or "1"

src/hilight.c

@@ -1176,7 +1176,7 @@ int eval_logic_expr(int inst, int output)
           if(s < 2) {
             stack[sp - 3] = (s == 0) ? stack[sp - 3]  : stack[sp - 2];
           }
-          else stack[sp - 3] = 3; /* setting to 2 (X) leads to simulation deadlocks */
+          else stack[sp - 3] = 2; /* setting to 2 (X) leads to simulation deadlocks */
           sp -=2;
         }
         break;

xschem_library/devices/diode.sym

@@ -2,8 +2,8 @@ v {xschem version=3.0.0 file_version=1.2 }
 G {}
 K {type=diode
 format="@name @pinlist @model area=@area"
-function1="U H 0 M"
-function0="L U 1 M"
+function1="U H 0 m"
+function0="L U 1 m"
 tedax_format="footprint @name @footprint
 value @name @value
 device @name @device