FXS_END
if (newxstate == -1 || newxstate == FXS_END) {
if (csb->csb_xstate == FXS_END)
csb->csb_xstate == FXS_END)
if (newstate == FXS_END) {
csb->csb_xstate = FXS_END;
csb->csb_xstate = FXS_END;
csb->csb_xstate = FXS_END;