kernel/tty.c

    tty_task // Hauptroutine
    do_charint
    in_char
    make_break
    echo
    chuck
    do_read
    rd_chars
    finish
    do_write
    do_ioctl
    do_cancel
    tty_reply
    sigchar
    keyboard
    console
    out_char
    scroll_screen
    flush
    move_to
    escape
    set_6845
    beep
    tty_init
    putc
    func_key