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^THE ^JACKSON ^LABORATORY
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^BAR ^HARBOR ^MAINE 04609
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#######################################^^7 July 1977
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Dear User,
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Enclosed is a 9 track, 800bpi DOS format (FLX) magnetic tape containing the following:
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1.#Sources and command files for TJL's PINGPONG game.
2.#Sources and command files for TJL's LEVELS program.
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PINGPONG IMPLEMENTATION
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The user should first compile PONG.FTN and VTPLOT.FTN using either
FOR or F4P.  Then it can be taskbuilt using TKB> and the indirect
build file PONG.CMD.
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Please note that this program can only be run on VT52 type terminals.
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LEVELS IMPLEMENTATION
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The levels task is a prototype version only.  It is alot larger
than it needs to be and may be reduced with a little effort.  Please
note that this is a priviledged, installed, realtime task and must be treated
as such.  If it is not built properly, it can and will crash your system !!!
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The task is setup to run on 
a crt hardware formfeed console terminal.  You
may change these setting by altering the taskbuild file as described
in that file.  Note that this task must run in a REALTIME partition of
at least 3K.
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The program repeatedly reruns itself, so you must CANCEL it in order
to stop it.  Alternatively, you may flip up console switches 15 or 14
and the program will exit.  This means that switches 15 and 14 must be 
down (0 or off) for proper operation.
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To build the task, simply assemble it with the following command:
MAC LEVELS=LEVELS and taskbuild it : TKB @LEVELS in MCR> mode.
You must then install the task.  To run, simply type: RUN/REAL LEVELS
from SCI> or PDS>.
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Not that proper taskbuilding must be performed in UIC [1,1] so that
IASCOM may be accessed.
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DISCLAIMER
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The program material supplied herein is supplied without warranty
or representation of any kind.  The Jackson Laboratory assumes no
responsibilty and shall have no liability, consequential or otherwise, of any kind
arising from the use for this program material or any part thereof.
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If you have problems implementing any of the above programs on your
system, the Computing Service staff of the Jackson Laboratory may
be of some help and you may contact Randall C. Adams at 207-288-3373 X226
between the hours of 9:00AM and 4:00PM any weekday.
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TAPE RETURN
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Please return this tape to the above address ATTN: R.C.#ADAMS when
you have transferred the programs.  If you have any neat programs
that you can release, I would greatly appreciate receiving them.
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###############################Sincerely,
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###############################Randall C. Adams
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###############################Manager, Computing Service
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cc:##Mr. Austin Carter
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#####Dr. Robert Collins
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