JJSave/dev/structure.txt

OFFSET  LENGTH  TYPE  DESCRIPTION
------  ------  ----  ------------------------------------------
     0      16    u8  Save name (initial filled with spaces, not zero
                      terminated and when there are less then 16 characters,
                      those left tailing will be spaces (0x20)).
    16       1    u8  Magic (should be 0x1A)
    17       2   u16  Key1 (minutes:hours from DOS get sys time 0x21 AH=2C)
    19       2   u16  Key2 (1/100second:seconds from DOS get sys time)
    21       ?    u8  Garbage byte, the amount of garbage bytes will depend
                      on Key1 and Key1 (calculated after the first full cipher
                      iteration). Garbage bytes are generated by the cipher
                      function.

                      ... GARBAGE BYTES ...

     ?       2   u16  New Key1 (derived after every cycle of garbage byte
                      generation).
 2 + ?       2   u16  New Key2 (also derived after garbage byte generation).
 4 + ?       2   u16  Ciphered level number.
 6 + ?       2   u16  Ciphered planet id.
 8 + ?       2   u16  Ciphered difficulty.
10 + ?       2   u16  Ciphered unknown value 1.
12 + ?       2   u16  Ciphered unknown value 2.
14 + ?       2   u16  Ciphered unknown value 3.
16 + ?       2   u16  Ciphered unknown value 4.
18 + ?       2   u16  Ciphered unknown value 5.
20 + ?       2   u16  Ciphered unknown value 6.

                      ... MORE GARBAGE BYTES ...

                      ... tail, the message from Arjan:
                          "try figure diz out! greetz, arjan\0"

                      EOF