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Macro

Discussion in 'C' started by answerme, Jan 2, 2008.

  1. answerme

    answerme New Member

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    Iam facing one problem.A Macro INIT_ON whose value is

    Code:
    #define	INIT_ON 	(*((unsigned char *)0x70060000) & 0x80)
    what is this value doing
     
  2. shabbir

    shabbir Administrator Staff Member

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    The only thing that can be wrong is its not working as you expect. What you expect is a million dollar question?
     
  3. answerme

    answerme New Member

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    Dear shabbir
    I just want to know what does this means

    (*((unsigned char *)0x70060000) & 0x80)
     
  4. shabbir

    shabbir Administrator Staff Member

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    Bitwise Anding both the numbers and type casting them to unsigned char *.

    And of 0x70060000 & 0x80000000
    Then type cast it
     

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