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<title>Divider</title>
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<h1><img  align="center" src="../../../../en/icons/divider.gif" width="32" height="32">
<em>Divider</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/divider.png" width="44" height="45"></td></tr>
</table></p>

<h2>Behavior</h2>

<p>This component divides two values coming in via the west inputs and
outputs the quotient on the east output. The component is designed so
that it can be cascaded with other dividers to provide support a
dividend with more bits than
is possible with a single divider: The upper input provides the
upper <var>dataBits</var> bits of the dividend (if it is specified at
all), and the <var>rem</var> bits provide the remainder, which can be
fed as the <var>upper</var> input into another divider.</p>

<p>If the divisor is 0, then no division is performed (i.e., the divisor
is assumed to be 1).</p>

<p>The divider essentially performs unsigned division. That is, the
remainder will always be between 0 and <var>divisor</var>-1. The
quotient will always be an integer so that
<center>
<var>quotient</var> * <var>divisor</var> + <var>remainder</var>
= <var>dividend</var> .
</center>
If, however, the <var>quotient</var> does not fit into
<var>dataBits</var> bits, then only the lower <var>dataBits</var> bits
will be reported. The component does not provide any method for
accessing the upper <var>dataBits</var> bits.</p>

<p>If either of the operands contains some floating bits or some error
bits, then the component's outputs will be either entirely floating or
entirely error values.</p>

<h2>Pins</h2>

<dl>

<dt>West edge, north end (input, bit width matches Data Bits attribute)
<dd>The lower <var>dataBits</var> bits of the dividend (that is, the
first operand for the division).

<dt>West edge, south end (input, bit width matches Data Bits attribute)
<dd>The divisor (that is, the second operand for the division)

<dt>North edge, labeled <var>upper</var> (input, bit width matches Data Bits attribute)
<dd>The upper <var>dataBits</var> bits of the dividend (that is, the
first operand for the division).

<dt>East edge (output, bit width matches Data Bits attribute)
<dd>The lower <var>dataBits</var> bits of the quotient, as specified
above.

<dt>South edge, labeled <var>rem</var> (output, bit width matches Data Bits attribute)
<dd>The remainder of the division. This value will always be between 0
and <var>divisor</var>-1.

</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 values to be divided and of the result.</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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