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Wed Dec 17 20:36:05 CET 2008

sync jitter

TV stuff is working.. It would be nice to also solve the 0-1-2 jitter
problem.  Originally it was done using interrupts, which gave zero
jitter.  It can be solved using an instruction that conditionally
wastes once cycle: a zero offset conditional branch.

EDIT:

It's actually not so difficult:  Create an ISR that pops the return
address, then add a routine   : wait wait ;

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