/td><td class='highlight'>1</td><td class='highlight'>1</td></tr>
</table>

<h3 id='logic'>Binary Logic</h3>

<p><b>AND</b>, or "both", sets individual bits to 0. AND is useful for masking
bits, for example, to mask the high order bits of a value AND with $0F: $36 AND
$0F = $06. <b>ORA</b>(OR), or "either one or both", sets individual bits to 1.
OR is useful for setting a particular bit, for example, $80 OR $08 = $88.
<b>EOR</b>(XOR), or "one or the other but not both", inverts individual
bits.</p>

<table 