CraftPack by madcr (x86) im too laze for rename instructions ;) so, if you realy need full engine - just read m68k version. send.s - main program (open socket,sendto,cicle if it need). *_packet.h - packets macros.h - network engine ;) : ip_checksum_F - calculate ip checksum & ip total length ip_source_generate_F - random ip source generate print_F - just print symbols on stdout exit_F - just exit from programm.