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Re: Apple emulators that support "floating bus" video sensing?



mmphosis wrote:
Here is a test case that I doubt any currently available emulator can
emulate...

loop
    LDA $C056
    NOP
    LDA $C057
    JMP loop

Try this on real hardware.

Good example of how hardware speed can't be emulated with even very
fast software...

To do this in general on a modern platform, you'd need to keep all
the "renderings" of the frame buffers current and be able to "switch
them in" in mid-refresh with a latency of no more than a microsecond.

Seems like 256MB or more ought to make this possible, but it all
depends on 1) whether the video hardware can "bank switch" and
2) whether DirectX (or whatever) offers an interface to do so.
(And even then, the 1us requirement is probably a killer.)

-michael

NadaPong: Network game demo for Apple II computers!
Home page:  http://members.aol.com/MJMahon/

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