Hi all:
I remember there is an instruction called COP which can used for
taking look at coprocessor registers.
But I cannot find out the usage.
>From the help message, if I want to take a look at coprocessor 13
select 0, it should use "cop cp 13 0",
but I always get error message as below:

> help cop
cop cp index select [value]
      Set or display 32-bit co-processor register values
  mips1.cpu cop cp index select [value]
        Set or display 32-bit co-processor register values
> cop cp 13 0
Invalid command argument
cp option value ('cp') is not valid
Command handler execution failed
in procedure 'cop' called at file "command.c", line 650
called at file "command.c", line 361
> cop cp 9 0
Invalid command argument
cp option value ('cp') is not valid
Command handler execution failed
in procedure 'cop' called at file "command.c", line 650
called at file "command.c", line 361
>

-- 
Regards,
miloody
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