treq              253 src/simh/sim_timer.c struct timespec treq;
treq              255 src/simh/sim_timer.c treq.tv_sec  = milliseconds / MILLIS_PER_SEC;
treq              256 src/simh/sim_timer.c treq.tv_nsec = (milliseconds % MILLIS_PER_SEC) * NANOS_PER_MILLI;
treq              257 src/simh/sim_timer.c (void) nanosleep (&treq, NULL);