<code class="c"><span class="k">while</span> <span class="p">(</span><span class="n">TRUE</span><span class="p">)</span> <span class="p">{</span>
<span class="kt">int</span> <span class="n">opcode</span> <span class="o">=</span> <span class="o">*</span><span class="n">program_counter</span><span class="p">;</span>
<span class="k">switch</span> <span class="p">(</span><span class="n">opcode</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="nl">ZEND_ADD</span><span class="p">:</span>
<span class="c1">// execute add ...</span>
<span class="n">program_counter</span><span class="o">++</span><span class="p">;</span> <span class="c1">// next opcode</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">ZEND_SUB</span><span class="p">:</span>
<span class="c1">// execute sub ...</span>
<span class="n">program_counter</span><span class="o">++</span><span class="p">;</span> <span class="c1">// next opcode</span>
<span class="k">break</span><span class="p">;</span>
<span class="c1">// ...</span>
<span class="p">}</span>
<span class="p">}</span>
</code>
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