> James probably has the answer he needs, but in the case of Tempest and Star
> Wars the refresh rate is variable. I think Star Wars runs around 40Hz most
> of the time, with some segments hopping up above 60 and some below 30...
Star Wars runs at a dead 30hz, until the death star explodes, at which
time it drops to 15.
> Asteroids runs at 60Hz. The VGGO signal always triggers at the sime time.
> Maybe it's tripped from an ISR or something.
NMI - yup. It's actually triggered from foreground code, but the
foreground code spins on a semaphore incremented by the NMI.
-->Neil
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Neil Bradley Synthcom home : http://www.synthcom.com
Synthcom Systems, Inc. C++ - Where you can make your privates public!
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Received on Wed Oct 20 12:39:27 1999
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