ment.
<p><li>
On 64-bit machines, you should definitely consider Cygwin:
the 64-bit version of Cygwin gives you an 
<a href="https://en.wikipedia.org/wiki/64-bit_computing">LP64 data model</a>,
which for many reasons is preferable to the Windows data model.
In particular, you will get the most performance out of NTL
in this environment.
</ul>




<p>
The remaining instructions on this page only apply 
if you <i>do not</i> use a Unix emulation environment
like Cygwin or MinGW.

<p>
If you really want to get 