Version 6.10.0

Add ASSERTs in linker script to produce errors when code/data gets too
big.

Add support for Zeus.

Correct coprocessor 0 register display.

Stop automatic minor revision changes per build.

Add uartfreqhz environment variable for uart clock frequency in Hertz.

Add clkfreqhz environment variable for cpu clock frequency in Hertz.

Add -i option to set to set a variable to the value of another variable.

Add setup command to set/inspect manufino information.

Version 6.9.0

Have pmon ethernet always use 64 byte burst sizes so pmon will
always work with any ethernet on any old or new chip.

Correct status register display.

Version 6.8.0

Correct initialization of instruction and data cache.
I was supposed to invalidate all cache entries in the caches before
attempting to use the caches.

Also, insure code is written to SDRAM by doing a sync instruction
and reading the memory controller register before attempting to
execute the code in the routines that copy instructions from flash
to SDRAM and clear the bss area.

Version 6.7.0

Change the sizemem algorithm to better detect a certain SDRAM memory size.

Version 6.6.0

Once pmon starts running in SDRAM, pmon will no longer access flash
unless one is doing a flash command.  This means some commands will
run faster including tftp transfers, one can now write to the flash
chip from which pmon booted without cuasing a hang and one can overwrite
pmon and pmon won't reboot automatically.

The '-p' option was added to the copy command telling the copy command
to preserve the manufacturing info record when copying to flash.

The '-F' option was added to the copy command telling pmon to do the
copy to flash overwriting any manufacturing info record.

Pmon will now check for locked flash blocks before doing a copy to
flash and will not start the copy to flash if any locked flash blocks
are found.

Version 6.5.0

The flash routine in lib/nvram.c will no longer write a partial sector
of flash unless that routine can buffer and re-write the part of the
sector of flash.  The CLIENTPC address has been increased from 0x80020000
to 0x80040000 to increase the probability pmon can buffer a partial
flash sector.  One can increate the heap space available to pmon further
by setting the value of variable heaptop to a higher address.  Please
do not decrease the value of heaptop because bad things will happen.

A manufacturing record in flash will be used to obtain certain information
include ethernet MAC addresses.  The address of this manufacturing record
is set by the value of FLASH_CONFIG_ADDRESS found in pmon/pmon.lk.

Version 6.4.0

The ethernet driver used within pmon, lib/mspeth.c, only does auto negoiation.
The code for setting up 10 megabit/full duplex was wrong so fix this code in
case someone looked at this code as an example.

Add code to display the c0_config register when registers are displayed.

Fix problem where caching was not enabled for KUSEG or USEG.
