an class="pre">copy</span></code>.
Like <code class="docutils literal notranslate"><span class="pre">move</span></code>, the <code class="docutils literal notranslate"><span class="pre">copy</span></code> program is actually an infinite batch of programs.</p>
<div class="admonition attention">
<p class="admonition-title">Attention</p>
<p>The difference between <i>move</i> and <i>copy</i>
for us is that when a register’s contents are moved, the
register is left empty; but if the contents are copied,
then t