Agnus and Denise Rebuild

[AeroMan]

trekiej wrote:

I guess the Akiko ( I believe that is the name )chip in the CD32 had the right idea.

The way Akiko was done was a nice approach, as with it you could use the available chips and OS, but my prefered solution would be create some extra modes, and keep the old ones.
Commodore could have done a "chunky chip", instead of Akiko, to receive the DMA data from Alice/Agnus and display it if the chunky modes were selected. Data output could be switched to feed one chip or the other one.
I bet they had a good reason to go with Akiko, but I like to think how different it could have been :-)

[AeroMan]

shoggoth wrote:

One guess could be that it's a very cheap solution. If I understand it correctly, it's basically a FIFO thing - you write 8 longwords of chunky data, which when read back becomes 8 longwords of planar data. No changes of the original chipset was required. Naturally, a "real" chunky mode would have been more efficien, but all and all it's not a bad solution considering the circumstances.

Makes sense... It`s a cheap chip  :-)