Basically the posts here not with standing:
in reply to How to access the contents of a specific memory address?
The answer is NO.
Perl cannot access an absolute physical memory address.
In "C" there are ways to "map" a piece of physical memory to an array - maybe for memory mapped I/O?
But such a thing has to run as a kernel process (device driver, etc).
A user process like Perl simply cannot do it. Thats it.
A user process can access its own DATA space, but this is an offset from a physical address of which the user process is completely unaware - the hardware does some magic. Since Perl is a "user" process, it cannot know and it cannot access an actual physical memory address like say, "0x000" - the OS will prevent such a thing - its just that simple. NO, Absolutely NOT!