question about vdc and vic-II

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VDC 8x2 Administrator VDC 8x2 Living life Posts: 348	question about vdc and vic-II Jul 12, 2014 20:23:19 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by VDC 8x2 on Jul 12, 2014 20:23:19 GMT Does the vdc and vic-II take the same amount of time to draw their respective screens? If so, could use interupts on the vic for stuff on the vdc?

hydrophilic
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question about vdc and vic-II Jul 12, 2014 22:21:44 GMT

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Post by hydrophilic on Jul 12, 2014 22:21:44 GMT

Only approximately the same. Each is driven by an independant crystal... they are not in lock-step.
So not close enough for interrupts. Which is why Risen from Oblivion uses the CIA, which can be 'fudged' every now and then as it drifts from the VDC refresh rate.

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question about vdc and vic-II

Post by VDC 8x2 on Jul 12, 2014 20:23:19 GMT

Post by hydrophilic on Jul 12, 2014 22:21:44 GMT

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