A89: Flickerfree Grayscale on HW2


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A89: Flickerfree Grayscale on HW2




At 23:50 2000-12-30, you wrote:

>I use both doorsos and universal os.  The grayscale seems to work on 
>univeral os if it doesnt on doorsos, and vice versa.  If it is a HW2 calc, 
>then the grayscale will be 'flickery' and there doesnt seem to be anything 
>you can do about it for the moment i think.

About that.. Is it still not solved?
Have anyone tried to implement the flickerfree grayscale that Johan E. 
explains in http://alh.dhs.org/ti89/hw2graypost.html ?
I don't have a hw2 calc so I can't try.
Should be nice if it, if it works right, gets included in some grayscale lib.
Maybe it would be a good thing to release a new grayscale lib that is not 
compatible with the old. (I think this hw2 flickerfree routine has some 
small incompabilities with the old, but I know to little about the old to 
know really)
I have also seen _even_ grayscale on a hw1 ti89. (That is, 4 even 
grayscales, not two almost black, or two almost white, depending on your 
contrast.) Tried to replicate it myself but failed :) must have missed 
something in the short brefing I got about how it worked. (or I just f*d 
up, maybe I'll try again) That would be nice to see in libs too.
This was like a year ago. Why isn't the "community" benefiting from this yet?

///Olle




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