pmreq.htm

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

	<title>PMON Target Requirements</title>
	<h1 align=center>PMON Target Requirements</h1>
<!--INDEX "PMON Target Requirements" -->

PMON requires somewhere between 128K and 256K Bytes of <a
href="romdef.htm">ROM</a> depending on the features selected. It also
requires 128K bytes of RAM. It needs to communicate with a <a
href="debgs.htm">debugger</a> running on the <a
href="htypes.htm">Host</a> via a UART.<p>


<h2>PMON Memory Map</h2>
<!--INDEX "PMON Memory Map" -->
<pre>
				RAM
	   80020000       +---------------+
			  |               |
			  |          ^    |
			  |   heap   |    |
			  |		  |
			  +---------------+
			  |      bss      |
			  |  (incl stack) |
			  +---------------+
			  |      data     |
	   80000100	  +---------------+
	                  |  excep vects  |
	   80000000	  +---------------+

			        ROM
    Approx 9fc28000       +---------------+
			  |	data	  |
			  | copied to RAM |
			  +---------------+
			  |     text  	  |
			  |    (code)  	  |
			  +---------------+
			  |  <a href="vecttbl.htm">entry points</a> |
	                  +---------------+
	                  |  excep vects  |
	   9fc00000	  +---------------+
</pre>




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