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Posted by "Richard Lynch" on 07/07/05 04:17
On Wed, July 6, 2005 5:35 pm, Dan Rossi said:
>
> On 07/07/2005, at 10:26 AM, Richard Lynch wrote:
>> "slow" switch
>
> You're a funny man Richard. So how is there overhead using callbacks if
> you dont mind me asking ?
I believe the callbacks imply a function stack, pushing/popping arguments,
and some pointer-chasing arithmetic to figure out where the callback-ed
function *IS* so it can JUMP to it...
Maybe the compiler can pre-compute all that crap, in theory, since all the
opcodes are constants, but I doubt it...
Maybe I'm grossly misleading y'all.
That compiler class I took *was* over a decade ago... :-^
Still got the book on my shelf. That don't mean I'm gonna read that
sucker. Though, as I recall, it was the second best textbook I ever read.
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