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On Fri, 2009-03-06 at 16:09 +0100, Paolo Bonzini wrote: > If this does not work, on ARM you can also hope for something like this: > > ADD R0, R1, R2 > XORS R0, R2, R3 > XORSMI R1, R2, R3 > SWIMI #trap On ARM you can just check for overflow directly... ADDS R0, R1, R2 SWIVS #trap :=)
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