I know the
add instruction in mips32 will do overflow detection, i.e.
add $t0, $s0, $s1; I want to know whether this feature will make it slower than
addu $t0, $s0, $s1, which won't detection overflow.
For make anything faster: I assume that overflow detection in done by hardware. Then I want to know the hardware components itself for
adduwhich is faster.
For Which implementation: The book I read mention about R2000, but think the solution is an general hardware design principle, which should not be restricted to a specific version. (i.e. I think there should be some requirement that clearly state whether it should cause delay.)