pmreq

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

	PMON Target Requirements
	PMON Target Requirements

PMON requires somewhere between 128K and 256K Bytes of ROM depending on the features selected. It also
requires 128K bytes of RAM. It needs to communicate with a debugger running on the Host via a UART.

PMON Memory Map

				RAM
	   80020000       +---------------+
			  |               |
			  |          ^    |
			  |   heap   |    |
			  |		  |
			  +---------------+
			  |      bss      |
			  |  (incl stack) |
			  +---------------+
			  |      data     |
	   80000100	  +---------------+
	                  |  excep vects  |
	   80000000	  +---------------+

			        ROM
    Approx 9fc28000       +---------------+
			  |	data	  |
			  | copied to RAM |
			  +---------------+
			  |     text  	  |
			  |    (code)  	  |
			  +---------------+
			  |  entry points |
	                  +---------------+
	                  |  excep vects  |
	   9fc00000	  +---------------+