Regarding DMA on AOS4 (and I mean *real* DMA, not Mediator one): the CachePreDMA() und CachePostDMA() functions seem to work now, and in most cases they really give a linear memory range back for blocks allocated with AllocVec().
So it would be interesting to see if DMA capable Zorro III boards are now fully working.
Regarding my test case (the Deneb) this is not yet the case, there still are some hangups, but the situation has really improved compared to the initial release.
So, good work, Hyperion! Next thing to be released should be the new SDK, to have current includes and documentation :-)
Michael