[fpc-pascal] Fast CRC functions?

[Juha Manninen]

Ok, thanks. This is yet another topic I should learn about.

Tony, I don't believe pycrc can generate much faster functions than
ours unless it uses SIMD.
Our function works well but it is called so ofter that its speed is relevant.

Mark, I promise to study the algorithms but changing our algorith is
not an option now. We want the same but faster.
Maybe loop unrolling can make it little faster but nothing compared to
a SIMD version of course.

Juha