Is this really true? Does't the runtime of some arithmetic instructions (like IDIV) depend on the argument?
https://developer.arm.com/documentation/ddi0601/2025-06/AArc...
and the set of instructions you can safely use is listed.
I believe Intel has a similar thing.
It doesn't tell you "yes" or "no", but it does tell you "definitely not" or "maybe". This information is useful even if it's not the whole story.
paulf38•4mo ago
bobmcnamara•4mo ago