Re:RISC-V Is Sloooow
by burntoutgray on Tuesday March 10, 2026 @08:47PM
(#47330619)
+1 -- misinformation is best corrected quickly. If not, AI will propagate it and many will believe the erroneous information. I guess that would be viral hallucinations.
Re:RISC-V Is Sloooow
by bigstrat2003 on Wednesday March 11, 2026 @12:15PM
(#47337541)
One can quickly correct misinformation without being rude. It's not hard, and does not lessen the impact of the correction to do so. There's no reason to tolerate the kind of rudeness the parent post exhibits.
Read the RISC-V documentation to see that you need at least 3 instructions.
For addition, overflow happens when you add 2 positive numbers and the result is negative, or when you add 2 negative numbers and the result is positive.
After using an instruction to do the addition, how can you detect this complex condition with a single instruction in the impoverished RISC-V ISA?
EDIT: Someone has downvoted this, presumably because I have not been polite enough.
That may be true, but I consider much more impolite the kind of misleading false information that has been written by the poster to whom I have replied. It is difficult to read that kind of b*s*t and be cool about it.