ipc_unit          708 src/dps8/dps8_cable.c                            & ipc_unit [unit_idx], dsk_iom_cmd); // XXX mtp_iom_cmd?
ipc_unit         1626 src/dps8/dps8_disk.c #define IPC_UNIT_IDX(uptr) ((uptr) - ipc_unit)
ipc_unit         1634 src/dps8/dps8_disk.c UNIT ipc_unit[N_IPC_UNITS_MAX] = {
ipc_unit         1735 src/dps8/dps8_disk.c     ipc_unit,              /* Units               */
ipc_unit           26 src/dps8/dps8_disk.h extern UNIT ipc_unit [N_IPC_UNITS_MAX];