runfl            2122 src/simh/sim_console.c int cmdfl,runfl;                                         /* TTY flags */
runfl            2127 src/simh/sim_console.c runfl = cmdfl | FNDELAY;
runfl            2154 src/simh/sim_console.c (void)fcntl (0, F_SETFL, runfl);                         /* non-block mode */