Replaced all references to simulation with emulation
Updated copyright year
Updated .gitignore to reduce chances of random files being uploaded to
the repo
Added .gitattributes to normalize all text files, and to ignore binary
files (which includes the logo and the NEC PDF)
Since the CEN64 core now runs in it's own thread (and doesn't use
the FPU), we can steal the host's FPU state register and not have
to worry about preserving it.
Along with that major overhaul, don't force "extra" features like
simulation statistics and debugging if the user doesn't want them.
Including that code, even when it is not run, mucks with register
allocation or something ever so slightly.
Tell GCC to optimize cold functions for size and stash them away in
a separate part of the binary. Put the simulate core, meanwhile, on
the hot path. Also, bump optimization to -O3 as we can now "afford"
to do so.
If we think about how the assembler forms 32-bit immediates, it
usually generates a lui and addiu pair. Well, if can craft the
simulation such that lui and addiu are the same indirect target
when branching to execution functions, we can reduce the chance
that we'll mispredict and have a resulting pipeline flush on the
host.
Every cycle counts!
