Re: Laser 128 - questions...

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

Ed Eastman wrote:

>As I have experimented with this alternate video mode, I can attest that 
>it displayed the hires/Dhires page1 on top and page2 on the bottom.   It 
>is more like an over/under mode that allows you to see both hires or 
>Dhires screens at once.  It was kind of interesting to invoke the video 
>mode and then play something like karateka that alternated page1 and 
>page2 to do animation.  It was even interesting to watch a game disk 
>load a title sceen on one half and you play the game on the other half. 

So it is interlaced, with the odd half of screen 1 followed by the odd
half of screen 2 in the first field, followed by the even half of screen 1
and the even half of screen 2?

At least this approach makes it possible to leverage DHR drawing
programs, if you allow for the 2:1 vertical compression.

>  No programs reset the alternate video mode that I am aware of.

Not surprising, since it is a proprietary softswitch.

-michael

Check out amazing quality sound for 8-bit Apples on my
Home page:  http://members.aol.com/MJMahon/