do_LUF_fault     2797 src/dps8/dps8_cpu.c                     do_LUF_fault (cpup);
do_LUF_fault     2804 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);
do_LUF_fault     2811 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);