skc_port_num      922 src/dps8/dps8_cable.c         uint skc_port_num = 0;
skc_port_num      925 src/dps8/dps8_cable.c                            unit_idx, skc_port_num,
skc_port_num      928 src/dps8/dps8_cable.c                            & cables->sk_to_iom[unit_idx][skc_port_num],