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From: rbt@sftig.UUCP (R.Thomas)
Newsgroups: net.micro.apple
Subject: Re: IIe Termcap; Bug in the 80 Col Monitor.
Message-ID: <492@sftig.UUCP>
Date: Mon, 28-Jan-85 14:27:25 EST
Article-I.D.: sftig.492
Posted: Mon Jan 28 14:27:25 1985
Date-Received: Wed, 30-Jan-85 04:20:51 EST
References: <287@boulder.UUCP>
Distribution: net
Organization: AT&T Bell Laboratories, Summit, NJ
Lines: 28

> 
> II:  (FLAME) I have been using my IIe to communicate with our local system at
> 1200 baud for a year now, and have had real frustrations with
> the slowness of the Apple Monitor. I need to pad linefeeds with
> three nulls to keep the monitor from dropping one to three characters
> at the beginning of lines. I have been using the Apple SuperSerial
> card, and could find no way around the problem.
>                   ...
> V. Heuring
> Electrical and Computer Engineering Dep't.
> University of Colorado - Boulder.

One possible fix to your problem is to decrease the size of the scrolling
area.  The fundamental problem is that it takes a long time for the poor little
old 6502 to scroll all those characters when it gets a line feed, and it
does not poll the Super Serial Card for incoming characters while it is
doing the scroll.  I have a *real* terminal emulator that does scrolling and
polling at the same time.  I am very happy with it.  I have it on beta
test right now, but the author may make it
available to the world sometime soon.  Because of this fact, I have not
tried out the proposed fix, but it was given to me by someone who claimed to
have gotten it from Apple Tech support.  For what that's worth.  My source
claimed that just decreasing the size of the scrolling area by 'a few' lines
did the trick at 1200 baud.  A 20 line screen that handles 1200 baud is
better than a 24 line screen that doesn't, I always say.

Rick Thomas
ihnp4!btlunix!rbt