verilog-parser 3 verilog 2 java-parser 1 ontology 1 python-parser 1 semantic-web 1 software-engineering 1 syntax-aware 1 array-multiplication 1 dadda-tree 1 parity-generator 1 recursive-doubling-cla 1 register 1 ripple-carry-adder 1 sklansky-adder 1 vlsi 1 wallace-tree-multiplier 1 xilinx 1 fortran-parser 1 cpp-parser 1 ast-patching 1 ast-patch-tool 1 ast-matching 1 ast-differencing 1 ast-diff-tool 1 vhdl-parser 1 vhdl 1 systemverilog-parser 1 systemverilog 1 python 1 parser 1 fpga 1 antrl4 1