I wonder why not use interrupts for overflow checking? (Maybe x86 still doesn't support that - my knowledge of it is very old.) That seems smarter, if the overf

I wonder why not use interrupts for overflow checking? (Maybe x86 still doesn't support that - my knowledge of it is very old.) That seems smarter, if the overflow is really going to be an exceptional case.. I would think that the best approach is to set up a global overflow handler, driven by an interrupt, and then maybe for cases where you actually want to be able to overflow, a special C primitive (that would use instructions that avoid overflow in some way) could be useful. I am just wondering why the article doesn't mention this possibility at all.