CDL is a language, compiler, and simulation harness (with Python execution environment) for hardware design and generation, for projects from the small to the enormous. The CDL tool suite is the starting point for the Netronome NFP family of network processors, which are multi-billion transistor devices.
To get CDL, clone the github repo.
autoreconf --install --verbose
Then in another directory (potentially):
<cdl_src>/configure --prefix=<install_path> make clean make -j8 install
This will install:
<install_path>/bin/cdl <install_path>/include/cdl/h <install_path>/lib/cdl/ <install_path>/lib/libcdl <install_path>/libexec/cdl/
First clone the grip.git repository
git clone https://github.com/atthecodeface/grip.git grip
Then clone cdl_tools_grip.git
git clone https://github.com/atthecodeface/cdl_tools_grip.git cdl_tools_grip
Then:
cd cdl_tools_grip ../grip/grip configure all ../grip/grip make configure ../grip/grip make install
This will clone all the required repositories for verilator, cdl, and cross-compilers for RISC-V in the GNU toolchain, and build them.
then ../grip/grip shell
will provide a Bash shell with the path set to use these tools.
The simples description is to follow some of the makefiles from the regression suite; the design files are usually kept in cdl/src directories, and a 'model_list' describes the hardware modules ready for 'create_make' to build a makefile.
- Fork it!
- Create your feature branch:
git checkout -b my-new-feature - Commit your changes:
git commit -am 'Add some feature' - Push to the branch:
git push origin my-new-feature - Submit a pull request :D
CDL has been around since the early 2000s, as a successor to numerous simulation development tools. It grew out of a frustration with Verilog and VHDL, which were (and are) very antiquated, and expensive to simulate in large quantities.
CDL has been written by Gavin Stark; along the way, particularly at Netronome, there has been input from various folks as to what bits to add, and patch proposals to get rid of warnings and the like - particularly Jason McMullan and David Welch have provided good prods.
CDL is released under a variety of licenses;
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The support library is put into the public domain - it is a set of useful functions that CDL uses throughout that do not want to encumber users in any fashion.
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The compiler is released under the GPL 2.0, so that patches and updates must be released in source form to help the community grow the tool.
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the simulation engine, which needs to be shippable with proprietary code, is released under the LGPL.
Basically, see the license in the files...