Accessing physical memory

This is a discussion on Accessing physical memory within the C++ Programming forums, part of the General Programming Boards category; I would like to use an I/O board (8255 chip set) that uses lets say a base address range of ...

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    Accessing physical memory

    I would like to use an I/O board (8255 chip set) that uses lets say a base address range of 300H (Prototype function range).

    How does one bypass the "virtual memory" and get/set some physical memory?

    Any help would be appreciated.

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    OS-MS 2000, MS C++ v6.x

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    WinNT doesn't give you direct access to anything outside your processes virtual memory space without some form of driver or hack. Do a search for 'giveio' in your favourite search engine.

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    Originally posted by Sorensen
    WinNT doesn't give you direct access to anything outside your processes virtual memory space without some form of driver or hack. Do a search for 'giveio' in your favourite search engine.
    Go figure, thanks for the help

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    So what's a good template for an NT driver?

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    Originally posted by Unregistered
    So what's a good template for an NT driver?
    At this point in time.....lookup WDM (Windows Driver Model)

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