hdlConvertor-binary 2.3
VHDL and System Verilog parser written in c++
License: MIT
Keywords: hdl,vhdl,verilog,system verilog,parser,preprocessor,antlr4

# hdlConvertor
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This library is a System Verilog and VHDL parser, preprocessor and code generator for Python/C++.
It contains:

   * ANTLR4 generated VHDL/(System) Verilog parser with full language support.
   * Convertors from raw VHDL/SV AST to universal HDL AST ([hdlConvertor::hdlAst](https://github.com/Nic30/hdlConvertor/tree/master/include/hdlConvertor/hdlAst) and it's [python equivalent](https://github.com/Nic30/hdlConvertorAst/tree/master/hdlConvertorAst/hdlAst).).
   * Convertors from this HDL AST [to SV/VHDL/JSON](https://github.com/Nic30/hdlConvertorAst/tree/master/hdlConvertorAst/to) and other formats.
   * Compiler focused [utils](https://github.com/Nic30/hdlConvertorAst/tree/master/hdlConvertorAst/translate) for manipulation with HDL AST.
       * HdlAstVisitor, id resolution, sensitivity detection, vhdl <-> verilog type conversion, ...

![overview](https://raw.githubusercontent.com/Nic30/hdlConvertor/master/doc/hdlConvertor_overview.png)


### Supported languages:
* [IEEE 1076-2008 (VHDL 2008)](https://ieeexplore.ieee.org/document/4772740) and all previous standard, (currently without `tool_directive` and `PSL`)
* [IEEE 1076-2019] WIP
* [IEEE 1800-2017 (SystemVerilog 2017)](https://ieeexplore.ieee.org/document/8299595) and all previous standards.


## Installation

Linux:
Installing dependencies (Ubuntu 20.10)
```
# we recommend to use gcc>=9, Visual Studio 2017 or equivalent
sudo apt install build-essential uuid-dev cmake default-jre python3 python3-dev python3-pip libantlr4-runtime-dev antlr4 ninja-build
```

Installing this library
```
# note this may be older version than you see in repo
sudo pip3 install hdlConvertor

# or download repository and run
sudo pip3 install --upgrade --force-reinstall --no-cache-dir git+https://github.com/Nic30/hdlConvertorAst.git
sudo pip3 install -r requirements.txt
sudo python3 setup.py install

# if you are using version from git rather uninstall
# old library first if required
# sudo pip3 uninstall hdlConvertor
```

Installer also supports other options which may be usefull
```
python setup.py install --prefix /tmp/python_install/ --build-type Debug -- -DANTLR_JAR_LOCATION=/antlr-4.7.1-complete.jar -- VERBOSE=1
```

You can also install only C++ library/generate .deb package (nothing specific, just normal cmake-based library)
```
mkdir build && cd build
cmake .. && cmake . --build
cpack # to generate .deb package
```

Windows:

Take a look at appveyor.yml and [doc/windows_installation_and_build.rst](doc/windows_installation_and_build.rst). It is required to download antlr4 first and have visual studio or other c++ compiler installed.


## Usage

The HDL AST (the parsed code) is represented by objects from `hdlConvertor.hdlAst`. Parsing and code modification is straightforward, as you can see in following example [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/Nic30/hdlConvertor/master?filepath=notebooks%2F01_parse_and_dump.ipynb)



### Similar projects:
(Tell us If you know about some other project!)

* [circt](https://github.com/llvm/circt) - C++, LLVM based infrastructutre for SV/VHDL/FIRRTL compilation and simulation
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* [HDL_ANTLR4](https://github.com/denisgav/HDL_ANTLR4) - C# projects that use ANTLR4 library to analyse VHDL and Verilog code
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