Schematic circuit editor for VLSI and Mixed mode circuit simulation.
...I have succesfully managed to simulate complete VLSI projects with this tool, both digital (Verilog / VHDL) and analog (Spice).
Schematics can be printed in SVG, PNG, PDF, formats. XSCHEM runs on Linux or other Unix-likes with Xorg server and on Windows with the Cygwin layer and required tools installed.
Can be found also on github: https://github.com/StefanSchippers/xschem
ROBODoc is a documentation tool. It extracts the documentation from your source code and formats it in HTML, RTF, TeX, XML DocBook (PDF), or ASCII. Works with C, C++, Fortran, Perl, Scripts, Assembler, Tcl, Basic, and any language that supports remarks.