src/mem/ruby/config/util.rb

   1
   2 def log_int(n)
   3   assert(n.is_a?(Fixnum), "log_int takes a number for an argument")
   4   counter = 0
   5   while n >= 2 do
   6     counter += 1
   7     n = n >> 1
   8   end
   9   return counter
  10 end