+void set_base (int in, int out)
+{
+ _ibase = in;
+ _obase = out;
+}
+
+int is_input_decimal ()
+{
+ return (_ibase == 10);
+}
+
+char *show_base ()
+{
+ static char str[16] = {0};
+ sprintf (str, "%d/%d", _ibase, _obase);
+ return str;
+}
+
+int get_ibase ()
+{
+ return _ibase;
+}