title: Call $readmemh() on global path of file
body: <p>I am currently calling <code>$readmemh()</code> from /&lt; WORKSPACE&gt;/&lt; RUN_DIR&gt; on <code>file.txt</code>.</p>
  <p>Currently, the function only works for $readmemh(file.txt, memory), i.e., relative path of the file.  How can I get it to work for $readmemh(/&lt; WORKSPACE&gt;/&lt; RUN_DIR&gt;/file.txt, memory), i.e., global path?</p>
  <p>I have tried to prefix the global path with a '<code>~</code>' but that doesn't work, and just the raw global path also doesn't work.</p>