On Sat, 10 Oct 2009 14:48:59 -0400, you wrote: > Like other simulators, it went through a formating pass that makes a > diff useless. > > Does anyone know of a diff tool that ignores line breaks and C comments? As a workaround you may want to try to feed both the old and new code thru indent to obtain a common formatting, and then diff should be more useful :) G.