c_mt.htm

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

<title>The mt Command</title>
<h1>mt</h1>

<!--INDEX "Memory Test" "Walking ones" "mt command" -->

The mt command tests memory.<p>

</dl><h2>Format</h2><dl><dd>

The format for the mt command is:<p>

PMON<br>
<pre>
	mt [-c][sadr [siz]]
</pre>
IMON95<br>
<pre>
	mt sadr eadr
</pre><p>

where:<p>

<table>
<tr>
<td width=50><var>sadr</var></td><td>	
	specifies the start address for the test. </td></tr>
<td><var>siz</var></td><td>	
	specifies the amount of memory to be tested (in bytes). </td></tr>
<td><var>eadr</var></td><td>	
	specifies the end address for the test. </td></tr>
<tr><td>-c </td><td>perform a continuous test</td></tr>
</table><p>

</dl><h2>Functional Description</h2><dl><dd>

The mt command tests memory by performing a series of read/write
operations. It first performs a walking one's test by walking a single
bit across each word in the memory to be tested. It then writes the
address of each word to itself, it then checks back to make sure that
each word still contains its address.
<p>

With PMON the range of addresses to be tested defaults to a sadr of 
CLIENTPC, and has a size equal to the remaining memory. You may also specify
a start address, and optionally a size.<p>

With IMON95 you must always specify both a start and end address.<p>

Note that any addresses specified on the command line must be non-cachable.<p>


Some examples illustrating the use of the mt command follow.<p>

<table>
<tr><td><samp>
PMON> mt</samp></td><td align=top>
Test all available memory.
</td></tr>

<tr><td valign=top><samp>
PMON> mt a0040000 </samp></td><td align=top>
	Test from a0040000 to end of memory.
</td></tr>

<tr><td valign=top><samp>
PMON> mt a0040000 1000 </samp></td><td align=top>
Test 4K bytes of memory starting at a0040000.
</td></tr>

<tr><td valign=top><samp>
IMON95> mt a0040000 a0070000 </samp></td><td align=top>
Test memory from a0040000 to a0070000.
</td></tr>
</table> <p> 

</dl><h2>See Also </h2><dl><dd>
<a href="c_m.htm">m</a>,
<a href="c_d.htm">d</a>,
<a href="c_copy.htm">copy</a>,
<a href="c_compare.htm">compare</a>,
and <a href="c_fill.htm">fill</a> commands.

</dl><p><hr>
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