[Coco] CoCoFEST! Challenge: CoCo DMA

James Ross jrosslist at outlook.com
Sun Mar 8 20:54:26 EDT 2020


James Ross wrote:
>> I was under the impression that from the CoCo’s cartridge slot only the CoCo1/2 
>> allow DMA to be performed, not a stock CoCo3? 
>>
> RETRO Innovations
> You understand correctly.  The CC3 includes a buffer IC between the CPU
> and the data bus.  ...  

>From what I understand a blitter can be implemented using DMA. So a CoCo1/2 blitter cart might be pretty cool!  (offload the sprite and tile drawing to a DMA driven blitter?) 

- JR


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