The Intel OMF-51 Format
Intel has published a detailed specification of their OMF-51 object module format. The last version 5.0 has been released in September 1982. Since OMF-51 has always been an open standard, the document is still available in various text formats from several sites:
Hint: Linux users can open the MS Word documents with LibreOffice.
¹) Intel has recently discontinued support for the MCS-51 family.
Last revised: W.W. Heinz, August 23, 2020