很好很全面的的一本关于Verilog教程的书，拿出来和大家分享，希望对大家有用。-A very good very comprehensive book on Verilog tutorial books, out to share the hope for all of us.

De2_build: It contains the FPGA configuration file of the comprehensive Nios II system in Section 16.10.2 and software image files for the DE2 board. These files can be used for quick demo or software development. Note that the files can only be us