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- <title>Negator</title>
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- <h1><img align="center" src="../../../../en/icons/negator.gif" width="32" height="32">
- <em>Negator</em></h1>
- <p><table>
- <tr><td><strong>Library:</strong></td>
- <td><a href="index.html">Arithmetic</a></td></tr>
- <tr><td><strong>Introduced:</strong></td>
- <td>2.0 Beta 22</td></tr>
- <tr><td valign="top"><strong>Appearance:</strong></td>
- <td valign="top"><img src="../../../../en/img-libs/negator.png" width="44" height="43"></td></tr>
- </table></p>
- <h2>Behavior</h2>
- <p>Computes the two's-complement negation of the input. This negation
- is performed by maintaining all the lower-order bits up to the
- lowest-order 1, and complementing all bits above that.</p>
- <p>If the value to be negated happens to be the least negative value,
- then its negation (which cannot be represented in two's-complement
- form), is still the least negative value.</p>
- <h2>Pins</h2>
- <dl>
- <dt>West edge (input, bit width matches Data Bits attribute)
- <dd>The value to negate.
- <dt>East edge, labeled -<var>x</var> (output, bit width matches Data Bits attribute)
- <dd>The negation of the input. If the input happens to be the least
- negative value representable in <var>dataBits</var> bits, however, then
- the output matches the input.
- </dl>
- <h2>Attributes</h2>
- <p>When the component is selected or being added,
- Alt-0 through Alt-9 alter its <q>Data Bits</q> attribute.</p>
- <dl>
- <dt>Data Bits</dt>
- <dd>The bit width of the component's input and output.</dd>
- </dl>
- <h2>Poke Tool Behavior</h2>
- <p>None.</p>
- <h2>Text Tool Behavior</h2>
- <p>None.</p>
- <p><a href="../index.html">Back to <em>Library Reference</em></a></p>
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