*** Installation on Unix

VDT is compiled under...

- SunOS 5.5.1 sparc SUNW, Ultra-2
- Use GNU make 3.78.1 version.
- Compile using GNU gcc/g++ 2.8.1 version.
- For lexical analysis, GNU flex 2.5.4 version.
- For grammar parsing, GNU bison 1.25 version.

1. First, decompress the gzipped tar files on $VDT home directory
   % mkdir $VDT
   % cd $VDT
   % gzip -d vdt-2.8.x.tar.gz 
   % tar xvf vdt-2.8.x.tar

2. Set the UNIX environment variable VDT and include the path
   where all tools are installed.
   % csh
   % setenv VDT /the_path_of_$VDT/ 
   % set path = ($path $VDT/bin)

3. The directory structure will have the following directories.

   $VDT/bin	- where tools are installed.
   $VDT/doc	- where manuals are placed.
   $VDT/etc/std	- where VHDL standard library is installed.
   $VDT/etc/IEEE- where VHDL IEEE standard library is installed.
   $VDT/lib	- where libraries are installed.
   $VDT/include	- where header files are installed.
   $VDT/examples - where some testing examples and programs are placed.

   You should analyze the std and IEEE libraries.
   Go to $VDT/etc/std and type as the following.
   % vans.bat
   If you want to use VHDL-87, type as below, instead.
   % vans-87.bat
   Go to $VDT/etc/IEEE and run the same named batch files.



*** Installation on Linux 

VDT is compiled under...

- Redhat 7.1 Pentium-III 
- Use GNU make 3.79.1 version.
- Compile using GNU gcc/g++ 2.95.3 version.
- For lexical analysis, GNU flex 2.5.4 version.
- For grammar parsing, GNU bison 1.28 version.

You can install the same way to UNIX.
If you prefer bash, set the environment variable as follows
   % export VDT=/the_path_of_$VDT/
   % export PATH=$VDT/bin:$PATH



*** Installation on Win98 with Microsoft Visual C++ Compiler

VDT was ported from Unix to Win98 PC environment,
compiled with Microsoft Visual C++ 6.0 compiler.
To run executable programs and to use libraries,
you should follow the procedure below.

1. First, decompress the zipped files on $VDT home directory

2. Set the environment variable VDT and include the path
   where all executable programs are installed.
   For a simple way, you can append the following code
   to "autoexec.bat" file.

   set VDT=c:\the_path_of_$VDT\
   set PATH="%PATH%;%VDT%\bin;"

3. Confirm the existence of "vdt.rc" file in the directory
   "$VDT\etc". This file contains the directory mapping
   information for the elementary design libraries, such as STD,
   IEEE, SYNOPSYS, etc.

   You should analyze the std and IEEE libraries.
   Go to $VDT/etc/std and type as the following.
   > vans.bat
   If you want to use VHDL-87, type as below, instead.
   > vans-87.bat
   Go to $VDT/etc/IEEE and run the same named batch files.


*** Please send problems and feedback to:

Sanghun Park,
Design Automation Laboratory,
School of Electrical Engineering,
Seoul National University

URL    : http://poppy.snu.ac.kr/VDT
E-mail : sanghun@azalea.snu.ac.kr
Tel    : +82-2-880-6768
Fax    : +82-2-882-4656

