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On Thu, May 17, 2001 at 12:54:11AM -0700, Ulrich Drepper wrote: > amodra@one.net.au writes: > > > > 1. How to write a correct exchange_and_add? Is exchange_and_add_1 ok? > > > > I think you'll need to use "=&r" and "=&m" as output constraints. > > No, why? Without the & the instruction is explained exactly right. You're correct. Muddy thinking on my part.
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