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From: ForthNet@willett.pgh.pa.us (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: Linking, Modules, and Overlays
Message-ID: <2731.UUL1.3#5129@willett.pgh.pa.us>
Date: 8 May 91 02:52:09 GMT
Organization: (n.) to be organized.  But that's not important right now.
Lines: 30


 Date: 05-02-91 (21:49)              Number: 2090 of 2105 (Echo)
   To: RAY DUNCAN                    Refer#: NONE
 From: BILL TRIFFET                    Read: 05-03-91 (10:49)
 Subj: PC@ AND LPT2                  Status: PUBLIC MESSAGE
 Conf: FORTH (58)                 Read Type: GENERAL (+)

 Hey dude. It took me 2 hours to realize that PC!, initializes the port
 to a desired value. The way it reads, at least for the novice, is that
 it sends a byte only. I found out the value stays at that port address.
 True? Anyways, my gizmo works fine ( though the LED does not shine
 bright enough with the power recieved from the +5v #1 pin, I shall use
 an external pwer supply.
    The whole purpose of this excercise has been to try and time a
 flywheel with a light beam. To further complicate things, I wish to
 measure the acceleration of the rpms (torque).
    I'm considering using the Multitasker ( TICKER etc...) to accomplish
 the timing problem. Is their some examples other than whats on
 FORTH.SCR?
                                   Signed
                                   Confused Again
 Thanks Dude!

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