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Object Module Format (Intel)
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<p>The Object Module Format (OMF) is an <a href="/facts/Object_file/sFBvosE4">object file</a> <a href="/facts/File_format/qrXbwJaH">format</a> used primarily for software intended to run on <a href="/facts/Intel_80x86/Kypq5fgu">Intel 80x86</a> <a href="/facts/Microprocessor/Fx9CaQht">microprocessors</a>. It was originally developed by <a href="/facts/Intel/SMF0gJJX">Intel</a> around 1975–1977 for <a href="/facts/ISIS-II/xJMURtnq">ISIS-II</a>, targeting the 8-bit <a href="/facts/8080/32FvNTcD">8080</a>/<a href="/facts/8085/jXpfJnM4">8085</a> processors. This variant later became known as <i>OMF-80</i>. As <i>OMF-86</i> it was adapted to the 16-bit <a href="/facts/8086/sS9dlSdK">8086</a> processor in 1978. </p><p>Version 4.0 of OMF for the 8086 family was released in 1981 under the name Relocatable Object Module Format, and is perhaps best known to <a href="/facts/DOS/sWwDXNmX">DOS</a> users as an <i>.OBJ file</i>. Versions for the <a href="/facts/80286/rucEU93g">80286</a> (<i>OMF-286</i>) and the 32-bit <a href="/facts/80386/ag5eSgWv">80386</a> processors (<i>OMF-386</i>) were introduced in 1981 and 1985, respectively. It has since been standardized by the Tool Interface Standards Committee and was also extended by <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> and <a href="/facts/IBM/QszA7nwd">IBM</a> (<i>IBM-OMF</i>). Intel also adapted the format to the <a href="/facts/8051/2bqJXGlv">8051</a> microcontroller (<i>OMF-51</i> and <i>AOMF</i>). </p>