Re: Laser 128 - questions...

[mjmahon@aol.com (Michael J. Mahon)]

M. Pender wrote:

>On 4/10/04 5:36 PM, in article BC9DE10D.9D87%mpender@hotmail.com, "M.
>Pender" <mpender@hotmail.com> wrote:
>
>>> : - removal of the QHR graphics
>>> 
>>> *WHAT* QHR?
>> 
>> Quad-High resolution graphics.  IIRC it was like DHR, but with twice as
>many
>> pixels across the horizontal dimension.  Of course, since none of the Apple
>> software of the time used the mode, one might well question why the folks
>at
>> Laser bothered.
>
>I was wrong; DHR was the 560x192 graphics mode, QHR was the 560x384 graphics
>mode.  Thus, it doubled the graphics across the vertical dimension, since it
>was a step-up from DHR graphics which already doubled the horizontal
>resolution. 

Now _that's_ interesting!

What did they do--alternate page 0 and page 1 with displaced vertical
sync to obtain an interlaced display?

-michael

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