u3                902 src/dps8/dps8_iom.c     uint scu_unit_idx = (uint) (up -> u3);
u3               2284 src/dps8/dps8_scu.c             iom_dev.units[iom_unit_idx].u3 = (int32) scu_unit_idx;
u3                438 src/simh/sim_defs.h     int32               u3;                             /* device specific */