fail.html

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<h3 class="section"><code>.fail </code><var>expression</var><code></code></h3>



   <p>Generates an error or a warning.  If the value of the <var>expression</var> is 500

or more, <code>as</code> will print a warning message.  If the value is less

than 500, <code>as</code> will print an error message.  The message will

include the value of <var>expression</var>.  This can occasionally be useful inside

complex nested macros or conditional assembly.



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