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The <tt>stand</tt> directory holds functions that are useful, but cannot be
called from the kernel. For example printf() is great, but if the kernel
called printf() it would generate a TRAP and wind up back in the kernel.<p>
The functions here emulate these functions by dealing directly with the
hardware on the system.<p>
The 4.3BSD Internals book by Leffler, McKusick, Karels and Quarterman
covers <tt>stand</tt> in:
<dl>
<dt> <b>Chapter 13.2</b>, pg 394 <i>Bootstrapping</i>.
</dl>
<p>
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