1.6 Basics: HDL Editor Active-HDL’s HDL Editor is a text editor for editing HDL source code. It contains features such as creating bookmarks, generating structure groups, autoformat/smart indentation, keyword coloring (VHDL, Verilog/SystemVerilog, C/C++, SystemC, OVA, and PSL), etc. Learn how to create a new HDL file with the New Design Wizard and how to utilize the HDE features within that created source file.