alguns links relevantes:<br><br><a href="http://www.nabble.com/Free-Open-FPGA-CPLD-design--td15707762.html">http://www.nabble.com/Free-Open-FPGA-CPLD-design--td15707762.html</a><br><a href="http://opencollector.org/Whyfree/freedesign.html">http://opencollector.org/Whyfree/freedesign.html</a><br>
<a href="http://www.1-core.com/library/digital/soft-cpu-cores/">http://www.1-core.com/library/digital/soft-cpu-cores/</a><br><a href="http://www.eecg.toronto.edu/~plavec/utnios.html">http://www.eecg.toronto.edu/~plavec/utnios.html</a><br>
<a href="http://en.wikipedia.org/wiki/S1_Core">http://en.wikipedia.org/wiki/S1_Core</a><br>
<a href="http://www.opencores.org/openrisc/?gnu_toolchain">http://www.opencores.org/openrisc/?gnu_toolchain</a><br><h2><span class="mw-headline">Open design</span></h2><p>On March 21, 2006, Sun made the UltraSPARC T1 processor design available under the <a href="http://en.wikipedia.org/wiki/GNU_General_Public_License" title="GNU General Public License">GNU General Public License</a> via the <a href="http://en.wikipedia.org/wiki/OpenSPARC" title="OpenSPARC">OpenSPARC</a> project. The published information includes:</p>
<ul><li><a href="http://en.wikipedia.org/wiki/Verilog" title="Verilog">Verilog</a> source code of the UltraSPARC T1 design;</li><li>Verification suite and simulation models;</li><li>ISA specification (UltraSPARC Architecture 2005);</li>
<li>The <a href="http://en.wikipedia.org/wiki/Solaris_Operating_System" title="Solaris Operating System" class="mw-redirect">Solaris</a> 10 OS simulation images.</li></ul>fonte: <a href="http://en.wikipedia.org/wiki/UltraSPARC_T1">http://en.wikipedia.org/wiki/UltraSPARC_T1</a><br>
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