Yes! John Regehr seriously advocates that [1] and I fully agree to him. [1] http...

solarexplorer · on Dec 18, 2014

Yes, AMD should have added it to x64. It isn't exactly new either. The Alpha's integer instructions had a bit in the instruction word that indicated if an overflow should cause a trap or not. IMHO that is the ideal solution.

thesz · on Dec 18, 2014

No, it is not an ideal solution. It causes decrease in clock frequency for about 10% (or you have to make your design noticeably more complex).

The trap in Alpha ISA was done for MIPS compatibility reasons (Alpha was more or less MIPS assembly compatible).