Source code for the ZX Spectrum Next
L2 Scroller example v2 by em00k
source code that uses the copper to scroll a scroller plotted to L2. the dma also is used to update a copper list on each vlbank.
there are some tests for snaking data quickly to L2 but so far I found typewriter method to be quickest. i have not yet tried using the dma to blast lines but may update to that.