Show current date without using system timer

This is a discussion on Show current date without using system timer within the C Programming forums, part of the General Programming Boards category; hello, I'm already using system timer to do the interrupt, in order to show the date and time, i need ...

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    Show current date without using system timer

    hello,

    I'm already using system timer to do the interrupt, in order to show the date and time, i need to get it from BIOS date. please advice how to accomplish this, thanks!

  2. #2
    Just Lurking Dave_Sinkula's Avatar
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    Posting you initial attempt will help everyone guage what you already know and precipitate better replies.

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    and the hat of wrongness Salem's Avatar
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    Don't forget to say which Operating system / compiler / application type you're creating.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    Just kidding.... fnoyan's Avatar
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    Well, I think you have to dig into assembly code in order to get the time from bios. Maybe int 0x1A is the one you are looking for.

    Accessing BIOS from user level is restricted. It is sometimes a real headache trying to access to BIOS under pm OSes!

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    ATH0 quzah's Avatar
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    Quote Originally Posted by fnoyan
    Accessing BIOS from user level is restricted.
    Not in DOS it isn't. See, this is why it's good to always list the target platform.


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    Just kidding.... fnoyan's Avatar
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    Quote Originally Posted by quzah
    Not in DOS it isn't. See, this is why it's good to always list the target platform.
    I meant a pm OS. Maybe it is better to clearly write what I really want to mean

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    >I meant a pm OS. Maybe it is better to clearly write what I really want to mean
    That would help. Like pm OS ... what does that mean? One could guess.

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    ATH0 quzah's Avatar
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    It only works at night.


    Quzah.
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    pwns nooblars
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    And that would change things for us programmers how? (The only working at night thing I mean.)

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    >It only works at night.
    Yes, thank you, I wonder if those outnumber the am OS?

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    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
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    swoopy, please tell me you are just joking and you really know what is a PMOS. . .

    EDIT: Does knowing what PMOS is mean that I'm old?
    Last edited by Kennedy; 09-29-2006 at 06:22 PM.

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    Cat without Hat CornedBee's Avatar
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    Thinking you must be old to know that might indicate you misinterpret the term. Seeing as nowadays we all use PMOSs, we (that is, the computer people) ought to know what they are.
    All the buzzt!
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    Quote Originally Posted by swoopy
    >It only works at night.
    Yes, thank you, I wonder if those outnumber the am OS?
    I have a rare am/pm OS.

    I bought it at a convenience store.
    System: Debian Sid and FreeBSD 7.0. Both with GCC 4.3.

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    >swoopy, please tell me you are just joking and you really know what is a PMOS. . .
    Well, the problem is, that P and M could mean too many different things. Sure I can guess what it means, and I might guess right, but if say 50% of your audience (the audience being this message board) can't, why speak in gibberish? Why not type it out? PM OS is pretty ambiguous. For example take the P. Is that:
    Privileged?
    Partitioned?
    Primitive?
    Private?
    Protected?
    Protective?
    Primary?
    Physical?
    Permanent?

    Take the M. Is that:
    Memory?
    Mapped?
    Mode?
    Modular?
    Last edited by swoopy; 09-29-2006 at 09:56 PM.

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    Quote Originally Posted by zx-1
    I have a rare am/pm OS.

    I bought it at a convenience store.
    Hmm, I did not know they made such an animal. The guy who invented it must be a genius.

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