87 lines
3.9 KiB
HTML
87 lines
3.9 KiB
HTML
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<html>
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<head>
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<title>.fcm</title>
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if (top.frames.length == 0)
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top.location.href = "fceux.html?" + sTopicId
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<body>
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<div id="topic_header">
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<div id="topic_header_content">
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<h1>.fcm</h1>
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<div id="topic_breadcrumb">
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<a href="Technicalinformation.html">Technical Information</a> ›› <a href="Movieformats.html">Movie & Savestate formats</a> ›› </div>
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</div>
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<div id="topic_header_nav">
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<a href="Movieformats.html"><img src="img/arrow_up.png" alt="Parent"/></a>
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<a href="fm2.html"><img src="img/arrow_left.png" alt="Previous"/></a>
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</div>
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<div id="topic_content">
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<p><span class="rvts12">FCE Ultra Movie File Format</span></p>
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<p> - Updated March 22, 2004</p>
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<p><br></p>
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<p>The FCM file format is a somewhat "joined" file format. The first part of a FCM</p>
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<p>file will contain an FCS-format state save. After this data, the FCM-specific data</p>
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<p>begins, which is being referred to from this point.</p>
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<p><br></p>
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<p><br></p>
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<p>Currently, the only supported input scheme for a FCM is four joysticks.</p>
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<p><br></p>
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<p>The FCM data consists of a stream of joystick commands:</p>
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<p><br></p>
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<p> dLLjjbbb</p>
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<p><br></p>
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<p> d = Dummy update, if set. Used to reset frame timestamp.</p>
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<p> LL = timestamp length, in bytes(maximum of 3 bytes).</p>
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<p> jj = Which joystick(0-3).</p>
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<p> bbb = Which button(0-7).</p>
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<p><br></p>
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<p> If the dummy update bit is set, a command can also have occurred. Look at the</p>
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<p> lower 5 bits:</p>
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<p> 0 = Just a dummy update.</p>
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<p> 1 = Reset</p>
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<p> 2 = Power</p>
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<p><br></p>
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<p> The timestamp is stored after the joystick command, in LSB-first format. It is</p>
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<p> the number of frames since the last event. A timestamp length of "0" is valid, to</p>
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<p> be used when several different buttons need to change state at the same time(same frame,</p>
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<p> at least).</p>
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<p><br></p>
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<p class="rvps2"><span class="rvts13">Created with the Personal Edition of HelpNDoc: </span><a class="rvts14" href="http://www.helpndoc.com">Easy CHM and documentation editor</a></p>
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</div>
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<div id="topic_footer">
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<div id="topic_footer_content">
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2012</div>
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</div>
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</body>
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</html>
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