3 ms·
I think the AFFINE and AFFINEINV instructions are specifically for FEC and maybe compression algorithms. I also think they smell like something requested by one
by pclmulqdq 2y ago
I think the AFFINE and AFFINEINV instructions are specifically for FEC and maybe compression algorithms. I also think they smell like something requested by one of the big customers of Intel (e.g. the government).
- LarsKrimi 2y agoHmm of course erasure codes would always need to solve these problems. Not sure what modern applications need that in the X86 world I really think it's only AES since thats the only place I've seen that polynomial used. But of course maybe there's an obscure tape backup FEC algo used somewhere in datacenters?
- Sesse__ 2y agoThe forward affine matrix is useful for all sorts of bit manipulation, e.g. something as simple as a bit reversal.