USAGE:
    cargo run -- [OPTIONS] [ROM]

ARGS:
    <ROM>    Filepath to the CHIP-8 ROM to be read by the emulator. A list of
             ROMs released to the public domain can be found at:
                 - https://zophar.net/pdroms/chip8/chip-8-games-pack.html
                 - https://johnearnest.github.io/chip8Archive/?sort=platform

OPTIONS:
    -h, --help          Print this help message.
    -g, --gui           GUI mode — run this program in a native window.
    -t, --tui           TUI mode — run this program in the terminal. (default)
    -a                  Use the native audio host API. You may want to enable
                          this if your terminal emulator does not support the
                          BEL control code. Enabled by default with --gui.
    -f, --freq=NUM      Set the clock rate of the emulator (Hz) to uint NUM
                          in the range 1–2000. (default: 720)

KEYMAP:
    +---+---+---+---+
    | 1 | 2 | 3 | 4 |
    +---+---+---+---+
    | Q | W | E | R |
    +---+---+---+---+
    | A | S | D | F |
    +---+---+---+---+
    | Z | X | C | V |
    +---+---+---+---+