what is PTR32 ATTRIBUTE

This is a discussion on what is PTR32 ATTRIBUTE within the C++ Programming forums, part of the General Programming Boards category; Hi, I am working on 2 programs say, TKKS and TKS5. TKKS is written in assembler and uses 4 byte ...

  1. #1
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    Exclamation what is PTR32 ATTRIBUTE

    Hi,

    I am working on 2 programs say, TKKS and TKS5. TKKS is written in assembler and uses 4 byte address while TKS5 in CPP and uses 8 byte address
    I get a lot of dumps in TKS5 when input data is passed to it by TKKS.
    I have been advised that TKS5 should add a couple of PTR32 definitions in its parameter list definition that it gets from TKKS.

    struct Input_Parameters {
    pFKSSTR FKK_Lst; //Input data passed by TKKU AND TKKS
    pFKSSTR CCN_Lst; //Input data passed by TKKU AND TKKS

    Can someone let me know how to add these PTR32 definitions?

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    So you are using a 64bit compiler for CPP and trying to interface your program with a 32bit assembly program? In order to make your pointer definitions 32bits you need to look at the stdint header file of your C++ compiler to see how it defines a 32bit int. You should see a typedef along the lines of uint32_t. If you were to declare a pointer to a 32bit integer you would use it like:
    Code:
     uint32_t* ptr32;
    This creates a 32bit integer pointer named ptr32.
    Quote Originally Posted by anduril462 View Post
    Now, please, for the love of all things good and holy, think about what you're doing! Don't just run around willy-nilly, coding like a drunk two-year-old....
    Quote Originally Posted by quzah View Post
    ..... Just don't be surprised when I say you aren't using standard C anymore, and as such,are off in your own little universe that I will completely disregard.
    Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.

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    Thank you Andrew.
    This has been very helpful


    "It is only when you convince yourself that you are strong, you become stronger"

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    Quote Originally Posted by AndrewHunter View Post
    So you are using a 64bit compiler for CPP and trying to interface your program with a 32bit assembly program? In order to make your pointer definitions 32bits you need to look at the stdint header file of your C++ compiler to see how it defines a 32bit int. You should see a typedef along the lines of uint32_t. If you were to declare a pointer to a 32bit integer you would use it like:
    Code:
     uint32_t* ptr32;
    This creates a 32bit integer pointer named ptr32.
    32-bit pointer is not a pointer which points to a 32-bit integer, but a pointer that occupies 4 bytes in the memory.

    @Ariyana: I guess you want to share integers, not pointers...
    I never put signature, but I decided to make an exception.

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