Verilator

Verilator

Verilator is Verilog -> C++ compiler. It is form of simulator. Verilator is focused mainly on performance, it also supports multiprocessing.

• License: GPL-3.0

• GIT http://git.veripool.org/git/verilator

• Internal representation: AST

• Optimization alg. paradigm: Visitor

Verilator internal representation

All Verilator source files are stored in single directory $(GIT)/src/. In the beginning of each C++ there is a description what module does.

• V3Ast* files contains of Verilator internal representation. It is Verilog like AST with an extra optimization flags.
• V3Emit* files contains to conversions to different target languages like Verilog or C++
• V3Prep* files contains Verilog pre-processor (lex/yacc grammar included)
• V3Parse* files contains verilog parser (lex/yacc grammar included)