do_LUF_fault     3213 src/dps8/dps8_cpu.c                     do_LUF_fault (cpup);
do_LUF_fault     3220 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);
do_LUF_fault     3227 src/dps8/dps8_cpu.c                 do_LUF_fault (cpup);