RFC = Run File Converter
This is the file format for all the standalone utilities (SAU) found in /sau# dirs, including domain_os
| byte | size | name |
|---|---|---|
| 0 | 4 | low address at which the program is loaded |
| 4 | 4 | start address, which is the initial execution entry point |
| 8 | 4 | machine type identifier of the target machine, or 0 if the program can run on any machine type |
machine type = n in SAUn