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In "C" there are ways to "map" a piece of physical memory ... Since Perl ... cannot access an actual physical memory address.

Sorry, but I think you are just muddying the waters with this post. The OP didn't ask how to do that.

Nowhere in the OP did he mention "physical memory", just a specific memory address & the memory address of a given variable & a given memory address; all of which are generically taken to mean: addresses within the virtual address space of the current process unless explicitly qualified otherwise.

Outside the auspices of deep technical discussion at the operating system or hardware level, this -- along with your other occasional overreach in to technicalities: there's no such thing as a file -- just come across as clever dickiness rather than constructive attempts to help.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^2: How to access the contents of a specific memory address? by BrowserUk
in thread How to access the contents of a specific memory address? by pat_mc

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