LE_RBUFADDR
a = sc->sc_addr + LE_RBUFADDR(sc, bix);
m = lance_get(sc, LE_RBUFADDR(sc, bix),
(*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh));
a = sc->sc_addr + LE_RBUFADDR(sc, bix);
m = lance_get(sc, LE_RBUFADDR(sc, bix),
(*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh));