K 10
svn:author
V 5
peter
K 8
svn:date
V 27
1999-08-19T14:54:40.000000Z
K 7
svn:log
V 437
Undo my previous commit and do it differently.  Break the ffs() etc macros
into two parts - one to do the bsfl and the other to convert the result
(base 0) to ffs()-like (base 1) in inline C.  This enables the optimizer
to be a lot smarter in certain cases, like where it knows that the argument
is non-zero and we want ffs(known non zero arg) - 1.  This appears to
produce identical code to the old inline when the argument is unknown.

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