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** 7TH NEWS UPDATE **
v1.6 - Added code to PostDMA to Flush the cache conditionally
(if the Store buffer and cache are enabled). Added NOPs
to sync the pipelines before RTE (CINVA is now obsolete)
UPDATE:
68040 users can use v1.4 or v1.5 if they like since they will
be a little faster than v1.6 but 68060 users should use v1.6!
68060 users will now have a performance trade off to consider
in deciding whether to enable the store buffer.
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