From:	HENRY::IN%"GREGG%nemo.math.okstate.EDU%relay.cs.net@RCA.COM"  1-NOV-1987 21:26
To:	VI-TO@nemo.math.okstate.edu
Subj:	VI part 1 of 14

There are 13 parts to the distribution of VI written in TPU.  The first,
this file, is a plain text file.  The remainder, are DCL command files.
Files 2-13 should each be executed as DCL procedures in sequence.  Below
is a sequence of steps that should allow you to get VI up and running.

    1)  You should pick a directory to place VI under, and place all 13 files
        in that directory.  Then, you can begin extracting.  Three directories
        will be created, [.SRC], [.EXE], and [.DOC].  The directory names
        should reveal the purposes of these directories. 

    2)  Place all 13 of the VI parts into the directory chosen in step 1.
        For each part, 2 through 13, execute the file as a command procedure
        using the command "@<filename>", where <filename> is the name of
        the file to execute (e.g. @VI_2.COM, followed by @VI_3.COM, etc).

    3)  After executing the 13th command file, you should set default to the
        [.SRC] directory, and use the commands "$ @make exe", and "$ @make
        tpusubs" to create the VI.EXE executable, and the CALL_USER routines
        for VI to use. 

    4)  Next, set default to [-.DOC] (from the SRC directory), and execute
        the command "$ VIDOC", and "$ @VIDOC HELP" to create a printable
        version of the current documentation, as well as a HELP file
        that VI can use.  When asked the question:

            Name of library to install HELP files in?

        you should probably answer with the full path to the current
        directory.  VI.TPU contains the path VI$ROOT:[DOC]VI.HLB as the place
        where it will work from, so if you do not place the help file in this
        library (It will automatically be created for you), then you must
        edit VI.TPU to contain the proper path.

    5)  Here you have a decision to make.  I have written a interface to
        callable TPU, [-.SRC]VI.MAR.  If you wish to use this interface,
        then there must be a CLD definition for it installed in DCLTABLES.
        This is really only necessary for using VI as a SUB-process, but
        I find it conveinent to install the CLD so that I do not have
        to wait for SET COMMAND to complete when I log in.  If do not
        wish to use the callable TPU interface then go to the next step NOW,
        otherwise hang tight.

        The CLD definition that needs to be installed is in [-.EXE]VI.CLD.  If
        you do not have sufficient privileges to install a new DCLTABLES you
        should get prepared to do so, or find someone that will do it for you
        (now is not entirely necessary, as you can skip to step 6, and do this
        later). 

        a)  Take the time to examine the CLD, and make sure it is ok for
            your installation.  If you are on a cluster, then there is
            some extra work that I won't describe here since I have never
            done it.  Basically you need to do the following set of commands.
            (the dollar signs are provide by DCL in case it wasn't obvious).

            $ SET COMMAND [-.EXE]VI.CLD/TABLE=SYS$SHARE:DCLTABLES.EXE/OUT=-
            _$ SYS$SHARE:DCLTABLES.EXE
            $ MCR INSTALL
            INSTALL>SYS$SHARE:DCLTABLES/REPLACE
            INSTALL>EXIT

        b)  This should be all that single CPU sites need to do.  If you
            have a different arrangement at your sight that requires
            something different, then you would know that better than I.
            Remeber that you MUST logout and log back in to have the updated
            DCLTABLES available to your process.  Step 8, below, can not be
            done unless you either 1) do not do (c) below, or 2) you logout and
            log back in after reinstalling DCLTABLES.

        c)  [-.EXE]VI.COM, and [-.EXE]VISETUP.COM contain uses of the symbol,
            "VI".  This symbol is normally equated to "EDIT/TPU".  Once you
            have made the changes necessary to update DCLTABLES, then these
            references should be changed.  In [-.EXE]VI.COM, change VI to
            be "VI", instead of "EDIT/TPU".  In [-.EXE]VISETUP.COM, delete
            the assignment to the variable VI, as the comment there says
            to.

    6)  Next, set default to [-.EXE] (from [.DOC]), and edit the file
        VISETUP.COM.  This file must be executed by each user wishing to
        use VI before they can use it.  You should change the definition of
        VI$ROOT to be the parent directory of the directory you are in NOW.
        E.g. if you are in the directory DUA0:[PUBLIC.VI.DOC], then VI$ROOT
        should be defined to be DUA0:[PUBLIC.VI.].  Note that this file
        potentially defines 3 symbols.  VI allows normal use of VI, VIS
        allows use of the VI.COM procedure to run VI in a subprocess, and
        VIEW allows READONLY editing of a file (as in UNIX).

    7)  The command file VI.COM is used to envoke VI in a sub-process
        so that a minimal amount of overhead for image activation will
        be incurred by the system.  In the VI.COM that you have, there
        are invocations of a SUSPEND, and a RESUME command.  I use these
        commands to suspend kept editors while they are not it use so that
        they will be swapped out or trimmed by the SWAPPER in a more timely
        manner.  This will allow their memory to be put to use by other
        processes whenever possible.  If you do not wish to do this and/or
        do not have these facilities available to you, then you should comment
        out these command lines.

    8)  Next, you should be ready to give VI a trial run.  Execute the
        VISETUP.COM procedure in [.EXE].  Then type VI, and hit return.
        You should be off and running.
