sim_start_timer_services 6401 src/simh/scp.c sim_start_timer_services ();                            /* enable wall clock timing */
sim_start_timer_services 1004 src/simh/sim_console.c                 sim_start_timer_services ();
sim_start_timer_services   73 src/simh/sim_timer.h void sim_start_timer_services (void);