SIOP_SCNTL3_EWS
sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS :
sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS;
sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS);
sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS;
(sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS);
sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS;