Mar 8, 2023 · A new GitHub organization is created and the main repo is moved from github.com/tgingold/ghdl to github.com/ghdl/ghdl. Old refs will continue working, because …

GHDL is a shorthand for G Hardware Design Language (currently, G has no meaning). It is a VHDL analyzer, compiler, simulator and (experimental) synthesizer that can process (nearly) …

To compile all source files with GHDL, the simulator executable is searched in PATH. The found default GHDL executable can be overwritten by setting the environment variable GHDL or by …

Since this is the user and reference manual for GHDL, it does not contain an introduction to VHDL. Thus, the reader should have at least a basic knowledge of VHDL.

GHDL analyzes each filename in the given order, and stops the analysis in case of error (remaining files are not analyzed). See Options, for details on the GHDL options.

Building GHDL from Sources ¶ GHDL can be downloaded as a tarball / zipfile or cloned with git clone from GitHub. GitHub offers HTTPS and SSH as transfer protocols. See the Sources …

However, the GHDL runtime behaviour can be modified with some options: It is possible to pass parameters to your design through the generic interfaces of the top entity. It is also possible to …

Since v0.37, GHDL features a built-in (experimental) synthesis kernel with two backends: synth and yosys-plugin. Currently, synthesis is supported as a front-end of other synthesis and …

E.g., first analyse with ghdl -a --std=08 --work=mylib myfile.vhdl; and then elaborate and run with ghdl --elab-run --std=08 top. Due to the fact that VHDL is processed as a general purpose …

GHDL displays all the files which will be linked to create an executable and additional arguments for the linker. This command is intended to add object files in a link of a foreign program.