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Old 10 June 2014, 11:40   #1
ovale
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Join Date: Jun 2014
Location: milan / italy
Posts: 132
DMA debugger and 14Mhz 68K

Hello Toni,

I was playing with the visual DMA debugger (v -4, Winuae 2.8.0) and tried to change the 'cycle-exact CPU emulation speed' to 4x.

With my surprise the black & gray pattern are still visible in the DMA debugger.
I supposed that a 14Mhz 68K uses all the available access slots.

I expected, where not in competition with DMA, only gray dots visible.
Instead, regular columns of gray dots are visible.
See the attachment.

It seems the 68K doesn't have access to 2 consecutive slots or most of the instructions don't use continuously the RAM.

Can you explain the behavior?

Thanks for your hard work!
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