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Install.txt
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1991-11-12
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AMIGA SCHOONSCHIP INSTALLATION
1. Machine Requirements
This version of Schoonschip has been tested on an Amiga 2000 with AmigaDOS
1.3, and on an Amiga 3000 with AmigaDOS 1.3 and 2.x, and requires a little
less than 120,000 bytes of contiguous memory for the program. There are
currently two executable versions, a "small" workspace version designed for
machines with 512 Kbytes of memory, in the file SchipAMI_S.LZH, and a
"standard" workspace version designed for machines with an extra 1,000,000
bytes of contiguous memory for workspace aside from the program itself, in
the file SchipAMI.LZH. The small version needs 335,000 contiguous bytes of
workspace.
2. Command Line Mode
To run Schoonschip from the command line only, without icons, simply copy
the executable file Schip into some directory in your execution path, for
example, the C: directory.
3. Icon Mode
Schoonschip is intended to be command line driven, but icons are included
with the Amiga version for those who want to try them. We think the icons
look best in 640x200 resolution mode. If you are not running AmigaDOS 2.x,
in its default 4-color mode, you might want to use IconEd to modify the
colors.
First copy the Schip.info icon into the same directory as the Schip
program. It should behave like a normal Amiga icon; and although it seems
to us an awkward mode of operation, we have implemented the method of
holding down the shift key while clicking on document icons, to represent
file name arguments normally given on the command line, then clicking on
the Schip icon (shift key still held down) to run the program.
The program can be run from a document icon with the help of two freely
distributable utilities provided by Rich Franzen, AtatJ and IconJ, included
here, plus a script, an example of which is also included, called DoIcon.
The AtatJ and IconJ programs need to be put into the C: directory. The
script uses AtatJ to attach an icon to a program text file, which calls
Schoonschip when clicked. It could be part of a larger script that calls
your favorite editor for writing Schoonschip programs, then attaches an
icon when your editor is finished.
As it stands, the script is invoked like this:
DoIcon filename
where "filename" is the name of a Schoonschip program text file. This will
produce an icon file called filename.info, which causes Schoonschip to run
the program filename when the icon is clicked, writes the output to
filename.out, and displays it with the More progream.
It is important that this script be able to find the icon template file
SchipDoc.icon, so you need to edit the script to make its path explicit;
and the paths for the Schip and More executables have to be explicit in the
script as well, otherwise the IconJ tool will not do its job properly.
IconJ is the actual tool associated with the document icon, and it runs a
script embedded in the icon to call Schoonschip. For more information on
how IconJ and AtatJ work, consult Fred Fish volume number 321.
4. Workspace Size Patch
The small and standard workspace versions in this distribution need a
contiguous workspace of 335,000 and 1,0000,000 bytes, respectively.
Although it allocates that much memory and won't run without it, the
program actually sets its internal workspace smaller (313,272,
respectively, 476,348 bytes). There is startup code in front of the
Schoonschip code which uses a little of the extra space.
The built-in sizes work well for problems that don't take really large
amounts of time (Schoonschip will go to the disk if it needs more
workspace), even for the smaller workspace, and on the other hand seem not
too large for most systems to handle.
The size of the internal workspace (the 313,272 or 476,348 bytes), and how
it is divided between input and output spaces, can be changed from the
command line. See Appendix A of the manual, or execute
Schip is=0
It is possible to patch the executable file to increase the maximum work
space size (the 335,000 or 1,000,000 bytes). Simply use a utility like
NewZap to change the long word (4 bytes) at offset 114 hex in (a copy of)
the file Schip from its current value of 0005 1C98 hex (335,000) or 000F
4240 hex (1,000,000) to something larger, in accord with your available
contiguous memory. This does not change the default internal workspace
size, but the internal work space can now be increased from the command
line as indicated above, to something somewhat below the new maximum. How
much below is undocumented. The program will let you know if it doesn't
have enough space.
David N. Williams
Ann Arbor, Michigan
October 10, 1991
David_N._Williams@um.cc.umich.edu
DWILLIAMS@UmiPhys.bitnet