ICRNL             252 src/simh/linehistory.c   raw.c_iflag &= ~( BRKINT | ICRNL | INPCK | ISTRIP | IXON );
ICRNL            2228 src/simh/sim_console.c runtty.c_iflag        = runtty.c_iflag & ~ICRNL;               /* no cr conversion */