XSCHEM : schematic capture and netlisting EDA tool

Xschem is a schematic capture program, it allows creation of hierarchical representation
of circuits with a top down approach . By focusing on interfaces, hierarchy and instance
properties a complex system can be described in terms of simpler building blocks. A VHDL
or Verilog or Spice netlist can be generated from the drawn schematic, allowing the 
simulation of the circuit. Key feature of the program is its drawing engine written in C
and using directly the Xlib drawing primitives; this gives very good speed performance,
even on very big circuits. The user interface is built with the Tcl-Tk toolkit, tcl is
also the extension language used.

DOCUMENTATION AND MANUAL

http://repo.hu/projects/xschem

BUILDING & RUNNING

Please read additional information in file INSTALL_WIN for installation instructions

SUBDIRECTORIES

XSchemWin:       Windows specific files (e.g. xschem.tcl, xschemrc, config.h)

INSTRUCTIONS TO ADD XSCHEM TO VISUAL STUDIO 2019

1. requirements

    - Microsoft Visual Studio 2019
    - Wix Toolset Visual Studio 2019 Extension (Download through Microsoft Extensions on VS 2019)
    - Wix Toolset Build Tools v3.11 (Download online from wixtoolset)
    - ActiveState tcl/tk 8.6 (Remember install directory where includes files are, see step h)
      32-bit, 64-bit ActiveState need to match XSchem x86, x64, respectively.
    - bison (Remember executabled directory for step h, preferably don't have spaces in the directory path (ie., don't use Program Files)) 
      (http://gnuwin32.sourceforge.net/packages/bison.htm, Complete package, except sources (bison-2.4.1-setup.exe))
    - flex (Remember executabled directory for step h, see bison note)
      (http://gnuwin32.sourceforge.net/packages/flex.htm, Complete package, except sources (flex-2.5.4a-1.exe))

2. Create new XSchemWin project on Visual Studio 2019 

    a. Open VS2019
    b. Create a new project 
    c. Select Empty Project
    d. Project Name: XSchemWin
          Location: D:\Projects\XSchem
          Solution Name: XSchemWin (Check Place solution and project in the same directory).
    e. Click Create
          A new folder XSchemWin will be created (XschemWin.sln and XSchem.vcxproj)
    f. Add C/H files under src into the project (e.g. svn://repo.hu/xschem/trunk/src)
          - Exclude src/expandlabel.c, src/expandlabel.h, src/parselabel.c (add later after using Windows Flex and bison)
          - Exclude src/xschem.tcl and src/xschemrc (add the two files from svn://repo.hu/xschem/trunk/src/XSchemWin/)
          - Add config.h from svn://repo.hu/xschem/trunk/src/XSchemWin/
            config.h is generated by Linux counterpart.  Edit if necessary
    g. XSchemWin Property Page > Linker > Input (All Configuration for x64 depending on what machine dependency you installed for Active State): 
          Add "tcl86t.lib;tk86t.lib" for Additional Dependencies
    h. For (All Configurations, x64)
          XSchemWin Property Page > VC++ Directories > Include Directories, Add "C:\ActiveTcl\include"
          XSchemWin Property Page > VC++ Directories > Library Directories, Add "C:\ActiveTcl\lib"
          XSchemWin Property Page > VC++ Directories > Executable Directories, Add "D:\GnuWin32\bin"
    i. XSchemWin Property Page > C/C++ > Preprocessor, Add ";_CRT_SECURE_NO_WARNINGS" to proceed with the following compile error:
          Severity	Code	Description	Project	File	Line	Suppression State
          Error	C4996	'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.	XSchemWin	D:\Projects\XSchem\src\actions.c	117	
    j. Right click parselabel.l
          Property Pages > Item type, change from "Does not participate in build" to "Custom Build Tool"
          Click Apply to get options for "Custom Build tool"
          Command Line: flex -l -oparselabel.c ..\src\parselabel.l
          Outputs: parselabel.c
    k. Right click expandlabel.y
          Property Pages > Item type, change from "Does not participate in build" to "Custom Build Tool"
          Command Line: bison -d -o expandlabel.c ..\src\expandlabel.y 
          Outputs: expandlabel.c

3. compiling

    - config.h can be edited to change default's XSCHEM_LIBRARY_PATH.
      It's defaulted to include the following directories:
        C:/Program Files/XSchem/xschem_library/devices
        C:/Program Files/XSchem/xschem_library/examples
        C:/Program Files/XSchem/xschem_library/ngspice
        C:/Program Files/XSchem/xschem_library/logic
        C:/Program Files/XSchem/xschem_library/binto7seg
        C:/Program Files/XSchem/xschem_library/pcb
        C:/Program Files/XSchem/xschem_library/rom8k

     Ctrl-b
     - After compiling the first time, add expandlabel.c, expandlabel.h, parselabel.c into the project.
       These 3 files are created in D:\Projects\XSchem\XSchemWin

4. running from Visual Studio 2019

     F5