DART_SID_ENABLE
mask = HREAD4(sc, DART_SID_ENABLE(sc, sid / 32));
HWRITE4(sc, DART_SID_ENABLE(sc, sid / 32), mask);
mask = HREAD4(sc, DART_SID_ENABLE(sc, sid / 32));
HWRITE4(sc, DART_SID_ENABLE(sc, sid / 32), mask);