Retro CPC Dongle – Part 30

 

“Cache Grab”

Yes, pun intended, this post is about the caching SDRAM controller that I’ve written for the new CPC2.2 board. Here’s the cache (screen) grab:

Cache (Screen) Grab (Click for large)

This screen grab shows one of the key process steps in the caching controller, the cache line replacement. The red bracket indicates the cache i/o ports and some key internal state variables, and the blue bracket indicates the data cache i/o ports on the dual-port ram. Continue reading

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