Editing VHDL (section)

==VHDL simulators==
{{Main|List of HDL simulators}}
Commercial:
* Aldec [[Aldec#Software|Active-HDL]]
* [[Cadence Design Systems|Cadence]] [[NCSim|Incisive]]
* Mentor Graphics [[ModelSim]]
* Mentor Graphics [[QuestaSim|Questa Advanced Simulator]]
* [[Synopsys]] VCS-MX<ref>{{cite web
 |title = VCS: Industry's Highest Performance Simulation Solution
 |website = synopsis.com
 |url = https://www.synopsys.com/verification/simulation/vcs.html
}}</ref>
* [[Xilinx]] [[Xilinx Vivado|Vivado Design Suite]] (features the Vivado Simulator)
Other:
* [http://www.edaplayground.com EDA Playground] is a free web-based VHDL IDE (uses Synopsys VCS, Cadence Incisive, Aldec [[Aldec#Software|Riviera-PRO]] and GHDL for VHDL simulation)
* [http://ghdl.free.fr/ GHDL] is an [[open-source software|open source]]<ref>{{cite web
 |title = Copyrights {{!}} Licenses
 |work = GHDL Documentation -- GHDL 0.36-dev documentation
 |publisher = readthedocs.io
 |url = https://ghdl.readthedocs.io/en/latest/licenses.html
}}</ref> VHDL compiler that can execute VHDL programs. ({{GitHub|ghdl/GHDL}})
* [http://www.freerangefactory.org/boot.html boot] by freerangefactory.org is a VHDL compiler and simulator based on GHDL and [http://gtkwave.sourceforge.net/ GTKWave].
* [http://www.symphonyeda.com/ VHDL Simili] by Symphony EDA is a free commercial VHDL simulator.
* [https://github.com/nickg/nvc nvc] by Nick Gasson is an open source VHDL compiler and simulator.<ref>{{cite web
 |title = Writing a VHDL compiler
 |last = Gasson |first = Nick
 |date = November 5, 2011
 |url = https://www.doof.me.uk/2011/11/05/writing-a-vhdl-compiler/
}}</ref><ref>{{cite web
 |title = NVC - VHDL Compiler and Simulator
 |last = Gasson |first = Nick
 |date = July 22, 2023
 |access-date = July 23, 2023
 |url = https://www.nickg.me.uk/nvc/
}}</ref>
* [http://freehdl.seul.org/ freehdl] by Edwin Naroska was an open source VHDL simulator, abandoned since 2001.<ref>{{cite web
 |title = freehdl: By Thread
 |url = https://list.gatech.edu/archives/freehdl/
 |archive-url = https://web.archive.org/web/20020210120248/https://list.gatech.edu/archives/freehdl/
 |archive-date = February 10, 2002
 |url-status = dead
}}</ref>