sim/ucsim/doc/vcd.html


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    <title>&#956;Csim: VCD file dumper</title>
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    <h1>VCD file dumper</h1>
    <p>1. specify output file:<br>
      <br>
      0&gt; set hw vcd[0] file "name.vcd"<br>
      <br>
      2. add locations to dump (sorry, I didn't remember correctly, bits can not
      be dumped yet):<br>
      <br>
      0&gt; set hw vcd[0] add pc_odr<br>
      0&gt; set hw vcd[0] add rom[0x500a]<br>
      <br>
      You can set the name of the module if you want (set hw vcd[0] module
      name), it will be<br>
      ucsim_vcd_0 by default.<br>
      <br>
      3. start recording:<br>
      <br>
      0&gt; set hw vcd[0] start<br>
      <br>
      4. run the program</p>
    <p>5. you can suspend/resume recording:<br>
      <br>
      0&gt; set hw vcd[0] pause<br>
      0&gt; set hw vcd[0] restart<br>
      <br>
      You can create an additional recorder with "set hw vcd[0] new id" and
      setup it with "set<br>
      hw vcd[id] ..." commands ("id" must be a number).<br>
      <br>
      6. stop recording and close the vcd file:<br>
      <br>
      0&gt; set hw vcd[0] stop<br>
      <br>
      After "stop", you have to specify a new file, because "start" overwrites
      the old one!<br>
      <br>
      For examine, I use gtkwave on linux.<br>
    </p>
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