Codenet
From IndividualComputers
Codenet is a simple Network Protocol invented by John "Graham" Selck. It was quickly adopted by others and became the defacto standard for cross developing using the RR-Net
Protocol
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 Packet | |||
|---|---|---|---|
| 1 | 2 | 3 | 4 |
| 0xCA1F | Sequence | Service | |
| Address (*1) | Size (*2) | ||
| Data (*2) | |||
(*1) required by DATA, FILL, JUMP (*2) required by DATA, FILL
| Codenet 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. |
Links
- Codenet client
- Codenet protocol
- The Final Replay ROM for use on the Retro Replay
