DPRINTF2
#define DPRINTF2(l, x) if (nec86hwdebug >= l) printf x
#define DPRINTF2(l, x)
#define DPRINTF2(X) if (an_debug > 1) printf X
#define DPRINTF2(X)
#define DPRINTF2(sc, x) if ((sc)->sc_ic.ic_if.if_flags & IFF_DEBUG) ATW_DPRINTF2(x)
#define DPRINTF2(sc, x) /* nothing */