On 12 Jan 09, at 14:51, Schultz Keith J. wrote:
Far as stuffing two 32-bit values into a 64-bit value to avoid
possible context
switching is probaly a very bad trade off as the handling to such
values and doing
any kind of math with will hurt you badly speed wise with no space
savings.
"Premature optimization is the root of all evil." -- Knuth
Optimization for space, in this case. Simply declaring the array to
contain 32-bit values is just as efficient in terms of storage space,
and it will probably perform better (as well as being easier to write).
Of course if you can do the math with bitwise operation directly you
could process
two integers at one time. But, I do not know exactly what you are up
to.
If speed is actually a concern, vector operations are *much* more
efficient for this sort of thing than any bitwise hacks could possibly
be. Look up Accelerate.framework for details.
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