hash4
static u_int32_t hash4 __P((const void *, size_t));
u_int32_t (*__default_hash) __P((const void *, size_t)) = hash4;
PUT_MACREG(hash4, erip->ladrf[4]);
PUT_MACREG(hash4, ladrf[4]);
uint32_t hash4; /* 0x60D0 h-table 4 [79-64] (RW) */