CodeNet Protocol
The CodeNet protocol is a very simple protocol to send data and executables to a C64 computer via
ethernet. A CodeNet server is normally listening on UDP port 6462. The protocol uses a request-reply
mechanism to ensure that the server has received each packet. Every valid CodeNet packet is replied
with a packet with the same sequence number and the service field set to ACK (0x01). Optional fields
are not replied.
CodeNet Protocol Header:
| 0 |
1 |
2 |
3 |
| 0xCA1F |
Sequence |
Service |
| Adress ¹ |
Size ² |
| Data ² |
¹ - required by DATA, FILL, JUMP
² - required by DATA, FILL
Services:
0x00 - PING - Ping server.
0x01 - ACK - Packet acknowledgement.
0x04 - DATA - Send data to C64 memory. Data size is limited to 128 bytes.
0x05 - FILL - Fill C64 memory with byte.
0x06 - JUMP - Jump to C64 memory adress.
0x07 - RUN - Run C64 program.
© 2010 Graham