ghdl:tldr:29dd7

The command "ghdl --help" is used to display the available command-line options and help information for the GHDL (G Hardware Description Language) tool.

GHDL is an open-source simulator and compiler for hardware description languages such as VHDL and Verilog. It allows you to simulate and test your digital designs before implementing them in hardware.

When you run the "ghdl --help" command, it provides a list of options and their corresponding descriptions that you can use with GHDL. These options include various simulation and compilation options, file and library management options, elaboration and analysis options, and more.

By referring to the help information, you can understand how to use GHDL effectively, customize its behavior, and utilize its features and functionalities as per your requirements.