The problem with a hardware implementation is that you break algorithms and coding systems for which integer overflow, or rather integer wrapping, is a necessar

The problem with a hardware implementation is that you break algorithms and coding systems for which integer overflow, or rather integer wrapping, is a necessary piece rather than an exception case. You could, in theory, add an instruction that disables integer exceptions, but that would make the hardware more complicated. You could also redesign the aforementioned algorithms and systems to not rely on the implicit wrapping, but then you make them more expensive.