Re: [stella] vcs net play A0?=

Subject: Re: [stella] vcs net play A0?=
From: Erik Mooney <erik@xxxxxxxxxx>
Date: Wed, 08 Aug 2001 18:57:16 -0400
On Wed, 8 Aug 2001 17:20:40 +0200, you wrote:

>The game might need to read the input more than once per frame, but
>the emulators sure don't have to. ;-)

Heh, doh, of course you're right.  I do this sort of thing too often
(anyone remember when I discovered that hardware collisions don't trigger
during the HMOVE black lines, then realized I had been testing that on PC

>One emulator sure has to be the master that selects the ROM image
>and all the other settings and that starts the actual emulation, but
>from then on it should be possible to have two emulators running in
>sync, provided that the computers are fast enough and that the connection
>allows a stable 60 Hz transfer speed, I think.

But that 60 Hz transfer speed must be absolutely guaranteed to be present
every single frame.  If even once it is not -- and the emulators can't
know that until after it happens -- they're out of synch unless one sends
a machine state resynch, in which case you're back into client-server.
And Windows at least can't guarantee 1/60 second network response time to

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