Shared memory is broken. Someone take Stevens' "Unix Network Programming"
and fix it :-)
Some pixels are incorrectly colored in great maginifications with a great
number of iterations. I don't know yet if it's a bug in my algorithm or in my
X server.
The different variants (C code, i486 asm, Pentium asm, Pentium II asm)
of the algorithm create images that differ slightly. Pentium and Pentium II
are most close to each other.

