What is port 0x80

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  1. #1
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    Question What is port 0x80

    Hello,

    what is the meaning of port 0x80, i didn't found any
    docs for this, or better say i don't know where to search.

    Regards,
    Robert

  2. #2
    and the hat of wrongness Salem's Avatar
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    Well there are the ports which access the hardware in your PC
    http://www-2.cs.cmu.edu/afs/cs/user/...WWW/files.html

    Or the ports which communicate via various internet protocols
    http://www.iana.org/assignments/port-numbers

  3. #3
    Registered User VBprogrammer's Avatar
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    I dont really know the specifics but port 0x80 is used for the bios POST checks, however as it isnt usually used for anything else (i.e. it does nothing, most of the time) it can be used in delay routines.
    VC++ 6

  4. #4
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    Well your post count is pretty low, so in case you're a newbie: If you want to express hexadecimal numbers in C/C++, you preced them with 0x, so that number is actually port 128, but it's done in hex, I assumbe because it's comparatively ver closely linked to the original assembly language code <- just a side note but it's very useful to know this.

  5. #5
    Registered User VBprogrammer's Avatar
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    Sean you just post anything to make sure you name is the one displayed beside a post dont you?
    VC++ 6

  6. #6
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    No. I've been doing DOS programming for a while and I can offer some useful advice on all the problems - If you go back and look it wasn't all of a sudden I started replying to everything - I've been gradually increasing the number that I reply to as I learned more myself.

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    how to access 0x80

    hello friends,
    tell me how can i access port 0x80 through c? i heard that port 0x80 address is for internet connection.....
    so is there any diff. method or it can be accessibal like 0x2f8 and 0x3f8 (COM1,COM2)....?

  8. #8
    Registered User VBprogrammer's Avatar
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    I think you are confusing Hardware ports with TCP/IP ports. TCP/IP port 80 is indead for HTML access, however what the author of this post was talking about was hardware port 0x80. If you want to learn about the TCP/IP port 80 then you should look up winsock (windows only i think, dont know what the Dos, Linux ect. do to access this).
    VC++ 6

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    Smile

    ok. thanx vbprogrammer.............!

  10. #10
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    Thumbs up

    Hey people,

    thanks for the huge participation on my problem. :-)

    Salem
    Thanks for the links!

    VBProgrammer
    yes it was my intention to use this port in a delay routine,
    but if i don't know what's going on there, then i'm not sure
    to use it. It was for the first time. :-)


    To all others thanks for replying!

    Regards,
    Robert

  11. #11
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    In continuation of what VBProgrammer said, any machine that has ever run a program that was written in Java, has a secondary, standardized way to do this. There's a program somewhere under the system directory, I forgot what it's called but I'm sure someone else knows what program I'm talking about. Anyone?

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