.gxe - Binary info file : title, company, icon, encrypted stuff, ...



.gxc - Encrypted binary file. Usually only the first X bytes of a

       commercial gxc is encrypted. The percentage of the file that

       is encrypted is controlled by the encryption program. (But

       often it is a very low percentage.) Here is the format



       Header (20 bytes long)

       Encypted binary data (X% of file)

       Unencrypted binary data (100-X% of file)



       If you remove the 20 byte header and unencrypt the file, then the

       resulting data is identical in all other respects with a .gxb file.

       

.gxb - Non-encrypted binary file. This is placed in gp32 ram starting

       at location 0xc000000. The entry point is the starting location

       and the entry is performed in ARM (not thumb) mode. Here is the

       header format:



       b SkipHeader

        DCD Start Of Rom Code(?)

        DCD End Of Rom Code(?)

        DCD Start Of BSS Section(?)

        DCD End Of RAM Sections(?)

        DCD Start Of DATA Section(?)

        DCD End Of RAM Sections(?)

        DCD 0x44450011

        ... sometimes more info here...

       SkipHeader:

        b C_Entry