[Ffmpeg-devel] ac3enc.c modifications
Fri May 20 05:37:24 CEST 2005
On Thu, May 19, 2005 at 06:15:08PM -0600, Mike Melanson wrote:
> How about this scenario: Both the floating point op and integer op
> take the same amount of time, say, 1 clock cycle. Where is the advantage
> for integer in this case?
Well-defined results that don't vary from one cpu to the next. :)
> Especially since the code probably has to do a
> few more maintenance operations on the integer after the operation
> (precision scaling, whatever).
I agree, and still maintain that this is a bad cpu design. If you can
do any floating point op in one cycle, you should be able to do 2
integer ops per cycle (or many more :)).
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