SC_PARK_FLG
scp->sc_flgs |= SC_PARK_FLG;
scp->sc_flgs &= ~(SC_PARK_FLG | SC_CANCEL_FLG);
return ((tdp->sc_flgs & SC_PARK_FLG) != 0);
tdp->sc_flgs |= SC_PARK_FLG;
tdp->sc_flgs &= ~SC_PARK_FLG;