Path: utzoo!attcan!uunet!tektronix!reed!kamath
From: kamath@reed.UUCP (Sean Kamath)
Newsgroups: comp.sys.apple
Subject: Re: Quad Hires? (was Re: Laser 128)
Message-ID: <11906@reed.UUCP>
Date: 25 Feb 89 03:38:47 GMT
References: <8902120443.AA12071@wpi> <4285@pt.cs.cmu.edu>
Reply-To: kamath@reed.UUCP (Sean Kamath)
Organization: Reed College, Portland OR
Lines: 24

In article <4285@pt.cs.cmu.edu> ralphw@ius3.ius.cs.cmu.edu (Ralph Hyre) writes:
>In article <8902120443.AA12071@wpi> GREYELF@WPI.BITNET writes:
>>I just figured out how to access the 520 x 384 quadruple hi-res mode on
>>the Laser,...

>How does this work?  Does the hardware flip between regular and alternate
>display pages every 60 hz? (for a 30 hz interlaced display with some flicker,
>depending on your monitor.)  Or do you have to write software (interrupt 
>handlers & such) to do this?

What I want to know is how to fanagle the hardware into letting me see
the Page 2 Double Hires on my //e!  I keep seeing references to it, but
I can't figure it out.  One of these days I'll write a program that
flips all of the softswitches in weird orders until I see something
weird happen. . . :-)  Note that this usually happens when you list the
$C0XX address space. . .

Sean kamath

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