Status: Planning

vhdl2js

Convert VHDL to Javascript and execute elaboration stage.

vhdl2js is a runtime for VHDL code translated to javascript. It implements the elaboration stage of VHDL, generating a instance hirarchy tree and a connection graph for signals. The elaboration stage can be run in a browser and the output can be used to visualize the VHDL code and implement various inspection tools.

Temporary intermediate steps using ghdl: Translation of VHDL to javascript

vhdl2xml

Subdirectory vhdl2xml contains a patched GHDL (r150,gcc-4.7.2). The --xml switch is added to GHDL. When given, the GHDL parser's AST will be dumped as XML.

xml2js

Subdirectory xml2js contains a perl script hdl2js.pl that converts the GHDL XML output to javascript. hdl2js.pl requires

XML::LibXML, XML::LibXML::PrettyPrint and Class::ISA

to be installed (perl -MCPAN -e "install XML::LibXML; install XML::LibXML::PrettyPrint; install Class::ISA;").

For javascript beautification https://github.com/einars/js-beautify can be used.