Gerrit_Heitsch@ibase.stgt.sub.org (Gerrit Heitsch) (05/26/91)
Does anybody know, how AMBER (in the A3000 or on the A2320) knows
whether he has to do double-scan or deinterlace the screendata
he receives from DENISE ?
If I move my mouse-pointer on deinterlaced Screen I can notice
two pointers (ghosting). If I do this on a doublescanned screen
there is no ghosting. According to this, I think that AMBER
has a possibility to detect whether he has to use only line-buffers
or line-buffers and field-buffers, but how does he do that ?
Why is this bug in AMBER (half of the first line flickers) still
unsolved ? Or is this a feature (you can see, that you are now
working on a interlaced screen and how it would look without AMBER :-)
If I put my A2000 in NTSC-Mode I notice, that the right ends of the
scanlines have different lengths. I heard that this is a bug
in Denise and theres a bit in the 8372A Agnus, that, if you
set it, will solve the problem. But I do not have
a list of the ECS registers of the 8372A...
I know that you can solve the problem using a 8373 DENISE, but this
chip is not as cheap as a short programm :-)
Gerrit
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