www.pudn.com > nasm-0.98.zip > magic

# Put the following lines in your /etc/magic file to get 'file' to recognise 
# RDOFF Object Files 
 
0       string          RDOFF           RDOFF Object File 
>5      byte            >32             version %c (little endian) 
>5      byte            <32             version %d (big endian)