Never Mind my idea of halving the clock at the timer, the 8250
uses the same pin for timing and for addressing. However, here's
another idea, this time possibly more feasable.
The A and B timers can both be set to count off either the
E clock, or some pin CNT. Now, if we feed CNT the E-Clock divided
by two, and set the timers to use that instead, then we should be able
to run the 14Mhz hack without any timer problems.
However, this depends on being able to set the appropriate
bits in the control register and having them stay that way. So, the
question is, when does Exec set those bits? Once on initialization,
or every time it sets up a timer request? Anybody know?