[Coco] [color computer] Just imagining...

[Paul T. Barton]

Actually E-high is CPU and E-low is Video.
You got it right about the IDMA, and it
can work with a 6800/74ls783/mc6847 also,
with some glue logic. Motorola did an
app notes sheet about dual CPU's, interleaved
them.

Paul - idezilla

--- jdaggett at gate.net wrote:

> David
> 
> IDMA, Interleaved DMA. This is already being done on
> the Coco. The Video accesses ram when the E Clock is
> high and the CPU when the E clock is low. Tack on
> another CPU and you have contention with ram. 
> 
> james


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