Greetings,

Here's an easy/quick sqrt function if there's still interest. Simply
change the initial m value for sqrt8 or sqrt32:

function sqrt16(word in n) return byte is
  var word m, y

  m = 0x4000
  y = 0
  while (m) loop
    var word b

    b = y | m
    y = y >> 1
    if (x >= b) then
      x = x - b
      y = y | m
    end if
    m = m >> 2
  end loop
  return y
end function

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