sim_os_poll_kbd   103 src/simh/sim_console.c static t_stat sim_os_poll_kbd (void);
sim_os_poll_kbd  1795 src/simh/sim_console.c     c = sim_os_poll_kbd ();                             /* check for stop char */
sim_os_poll_kbd  1845 src/simh/sim_console.c     c = sim_os_poll_kbd ();                                 /* get character */