do_LUF_fault     2703 src/dps8/dps8_cpu.c                     do_LUF_fault (cpup);
do_LUF_fault     2710 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);
do_LUF_fault     2717 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);