Dmitry K. wrote:
On Wednesday 20 April 2005 06:31, Joerg Wunsch wrote:
As Eric Weddington wrote:
For reference, the ffs function can be found in newlib.
<http://sources.redhat.com/newlib/libc.html#SEC187>
Which probably took it straight from the BSD lib. ;-)
As the function is so simple, and the BSD copyright matches our
copyright (clause 3 may officially be omitted), we can easily import
it.
I have look 'ffs' from newlib (1.12.0). It take up to 800 (!) clocks. Reason: shift is included to loop.
My realisation for AVR: ffs: 12 words, 39 clocks max ffsl: 18 words, 45 clocks max ffsll: 30 words, 57 clocks max
I shall send it after all tests writing.
Fantastic!
Thanks for doing this. Eric
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