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From: kamath@reed.UUCP
Newsgroups: comp.sys.apple
Subject: Re: IIe split screen query.
Message-ID: <5250@reed.UUCP>
Date: Sun, 8-Feb-87 02:22:34 EST
Article-I.D.: reed.5250
Posted: Sun Feb  8 02:22:34 1987
Date-Received: Mon, 9-Feb-87 04:43:45 EST
References: <630004@ui3.UUCP> <380@thumper.UUCP>
Reply-To: kamath@reed.UUCP (Sean Kamath)
Organization: Reed College, Portland, OR
Lines: 36

In article <380@thumper.UUCP> sdh@thumper.UUCP (Retief of the CDT) writes:
>>     I want to set up the split text/hires screen on my IIe such that
>> more than just 4 lines of text are visible at the bottom. Is this possible, 
>> or does the video system limit things? I can't find anything about this
>> option in my "Inside the Apple IIe", but maybe there are some nice little
>> zero page system variables that somebody out there knows about and can
>> kindly fill me in on them.
>> Bob Dickow (...egg-id!ui3!dickow)
>
>Sorry, Bob.  The four lines of text is a hardware limitation.  There is
>no convenient way of getting more text in that space except by altering
>the hardware, or writing (or using) a hi-res character generator
>package to do this (at the cost of somewhat slower output).
>
>Steve "Retief of the CDT" Hawley
>bellcore!sdh

Well, that is true.  But, if you don't need to do anything else (except
maybe wait for a keypress are something else that takes only a couple of
thousand cycles :-).  It's in a book called "enhancing you apple II and
IIe" by Don lancaster.  it's called the "vaporlock" and he describes it
like this in the contents page:

	A fast, exact, and jitter-free screen lock that uses software
only to let you mix and match text, HIRES, and LORES anywhere on the
screen in any combination.  Included are a ver simple windowing module
and a software-only color killer.  The vaporlock works equally well on
the II, II+, IIc and IIe. [but not clones]

it's rather an interesting piece from a hardware point of view.  It's
about $18 from Howard W. Sams & Co., Inc.  You can do some really neat
things with it!  Really!

Sean Kamath

kamath@reed.UUCP