phy_packet_self_id_zero_get_gap_count
gap_count = phy_packet_self_id_zero_get_gap_count(*sid);
if (phy_packet_self_id_zero_get_gap_count(self_id_sequence[0]) != gap_count)
*gap_count = phy_packet_self_id_zero_get_gap_count(quadlet);