do_LUF_fault     2719 src/dps8/dps8_cpu.c                     do_LUF_fault (cpup);
do_LUF_fault     2726 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);
do_LUF_fault     2733 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);