fnsave_state
fxsave_to_fnsave(const struct fxsave_state *fx, struct fnsave_state *fn)
fnsave_to_fxsave((const struct fnsave_state *)fc, fx);
fxsave_to_fnsave(fx, (struct fnsave_state *)fc);
fnsave_to_fxsave(const struct fnsave_state *fn, struct fxsave_state *fx)
CTASSERT(sizeof (struct fnsave_state) == 108);