APM: Debugging print statement

[Brian Michalk]

I'm want to print a string in it's raw form, like what the perl debugger
does when I issue an "x $mystring", which is different than an "p
$mystring".

I want to see the terminating characters at the end of the line, like "hello
world\r\n".

I've tried Data::Dumper.  No luck.
I've read about "use Dumpvalue", which mumbles something about "unctrl".

What's the best way to go about this?  These are embedded machines;
Dumpvalue is not installed, so I'd like to gather wisdom before checking
this out.