Copper-generate WB Backdrop

[trekiej]

I hope this not off topic.
How fast can the colors be changed in the 32 color registers?

[trekiej]

I was wondering if one could use a single bit plane for higher resolution and switch out the single color register with a new color. I am not for sure how it would be timed or even be fast enough.

[trekiej]

I do not know the full capabilities of the custom chips.
So here goes.
1. Use a single bit plane
2. Load the serial-izer with all one's.
3. Rotate them so you would not need to load them any more.
4. Load the colors in to location 1 of the 32 color registers.
5. Time it.
It would be nice if the Ram Address Generator could be programmed to act as a chunky style pixel retriever.

[trekiej]

If the RA Generator thinks it is still retrieving planar info. Maybe the picture could be broken down into planar style layers.
4 planes:  
1, +4 , +4, etc. Pixel 1,5,9,13,etc.
2, +4,  +4, etc.
3, +4
4, +4
I am wondering why a chunky style mode was not added.
I am wondering how to bypass the serial-izer without loosing performance.

[trekiej]

How is this going for the poster?
I found this to be interesting.
http://en.wikipedia.org/wiki/Hold_And_Modify