   {
     case 'B':
       return xcmd_boot(answer, cmd);
+    case 'D':
+      return xcmd_debug(answer, cmd);
     case 'F':
       return xcmd_freq(answer, cmd);
     case 'H':


const char * xcmd_freq(char *answer, char *cmd)
{
  switch (cmd[1])
  {
    case 'G':


void volts_calibrate_action(struct Menu *menu, int item_num)
{
  UINT save_calibrate = VoltsCalibrate;  // save the existing value
  int seldig = 0;                        // the selected digit in the display

  // get rid of any stray events to this point
  event_flush();
