do_LUF_fault     2589 src/dps8/dps8_cpu.c                     do_LUF_fault (cpup);
do_LUF_fault     2596 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);
do_LUF_fault     2603 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);