I'm learning more and more on how the original Macintosh series worked. I can't, however, find information in my research on how the Mac's video generator accessed the video RAM.
My assumption is that it used some sort of DMA transfer in correlation with the CPU. Much like the original Apple ][ did.
Of course, I don't think that is
true DMA in the strictest term.
Anyway, did the original Mac do something similar? Did it halt the CPU while it fetched video data? Or, did it have its own dedicated video RAM that the CPU passed information into?