Author: pavel
Date: 01:43:42 10/23/00
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On October 23, 2000 at 04:30:09, Rémi Coulom wrote: >On October 23, 2000 at 01:09:02, Landon Rabern wrote: > >>is it faster to cast to a char or to AND by 0xff, or to do they take the same >>number of clock cycles? >> >>Thanks, >> >>Landon W. Rabern > >I would give this general advice : >- Use int everywhere you need speed (ie, do not cast to char), even if data >would fit in a short or a char. >- If you do not know which is faster, time a large loop for both and you will >know (it has dangers, but it will generally give you a good order of magnitude >of the difference). This kind of result is probably machine/compiler dependent. >A good compiler might generate exactly the same code for both if what you do is >really equivalent. > >Remi hi Rem are you still working on TCB, or there wont be anymore TCB in the future? :( pavel
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