Merge "pdl: Update endianness documentation"

  d: 5,

}

// The first two field are laid out as a single

// integer of 16-bits

//     MSB                                   LSB

//     16                  8                 0

//     +---------------------------------------+

//     | b14 ..                        .. b0 |a|

//     +---------------------------------------+

//

// The file endianness is applied to this integer

// to obtain the byte layout of the packet fields.

//

// Little endian layout

//     LSB                                   MSB

//     0    1    2    3    4    5    6    7

//     MSB                                   LSB

//     7    6    5    4    3    2    1    0

//     +---------------------------------------+

//  0  | a  |             b[6:0]               |

//  0  |            b[6:0]                | a  |

//     +---------------------------------------+

//  1  |               b[14:7]                 |

//     +---------------------------------------+

//  2  |       c      |             d          |

//  2  |          d             |       c      |

//     +---------------------------------------+

//

// Big endian layout

//     LSB                                   MSB

//     0    1    2    3    4    5    6    7

//     MSB                                   LSB

//     7    6    5    4    3    2    1    0

//     +---------------------------------------+

//  0  |               b[14:7]                 |

//     +---------------------------------------+

//  1  | a  |             b[6:0]               |

//  1  |            b[6:0]                | a  |

//     +---------------------------------------+

//  2  |       c      |             d          |

//  2  |          d             |       c      |

//     +---------------------------------------+

```