By: hobold (hobold.delete@this.vectorizer.org), January 12, 2021 3:51 pm
Room: Moderated Discussions
none (none.delete@this.none.com) on January 12, 2021 3:53 am wrote:
[...]
> As long as you don't need a 128-bit result, yes. I wonder what workload beyond bignum
> requires 2 integer multiplication per 8 instructions.
If you are not limited by power / heat, integer multiply can be a fast way to do all kinds of bit permutation trickery. Some examples here:
Bit Twiddling Hacks
[...]
> As long as you don't need a 128-bit result, yes. I wonder what workload beyond bignum
> requires 2 integer multiplication per 8 instructions.
If you are not limited by power / heat, integer multiply can be a fast way to do all kinds of bit permutation trickery. Some examples here:
Bit Twiddling Hacks