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copied!<p>All of the FPGA vendors have inexpensive ($200~250 range) development kits. For example, the <a href="http://www.xilinx.com/products/boards-and-kits/EK-S6-SP601-G.htm" rel="nofollow">SP601</a> from Xilinx or the <a href="http://www.altera.com/products/devkits/altera/kit-cyc3-starter.html" rel="nofollow">Cyclone III Starter</a> from Altera. I personally own an <a href="http://www.xilinx.com/products/boards-and-kits/EK-S6-SP605-G.htm" rel="nofollow">SP605</a> (~$500) from Xilinx. You may be able to find cheaper options from other options (e.g. <a href="http://www.sparkfun.com/categories/136" rel="nofollow">Sparkfun</a>).</p> <p>Strictly speaking, while you can find open source VHDL/Verilog tools, I am not aware of any such tools for synthesis (making something the FPGA will use). Both <a href="http://www.xilinx.com/products/design-tools/ise-design-suite/ise-webpack.htm" rel="nofollow">Xilinx</a> and <a href="http://www.altera.com/products/software/quartus-ii/web-edition/qts-we-index.html" rel="nofollow">Altera</a> provide free (as in beer) tooling, but they are not open or free (as in libre) software. The Xilinx tools include a simulator (limited in the free version) and can run on Windows or Linux. I assume the Altera tools are similar, but I am not familiar with them.</p> <p>Building a simple microprocessor in Verilog/VHDL is a pretty common feature in college computer architecture classes. You can undoubtedly find class notes and the like from pretty much any major school.</p>

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