dancing doll implementation

This is a discussion on dancing doll implementation within the C Programming forums, part of the General Programming Boards category; I am trying to implement a dancing doll in c and i found that the code snippet which i have ...

  1. #1
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    Question dancing doll implementation

    I am trying to implement a dancing doll in c and i found that the code snippet which i have does not run on visual studio.
    It requires a file dos.h and the visual studio is unable to find it. So on which platform should i run it. I tried running the same on cygwin as well but of no use. ANY IDEA ON WHY IT IS UNABLE TO FIND THE INCLUDE FILE DOS.H

    insert
    Code:
    #include <conio.h>
    # include <dos.h>
    # include <stdio.h>
    void interrupt our();
    void interrupt (*prev)();
    char far *scr =(char far *) 0xB800000L;
    void main()
    {
    unsigned long int far *p;
    p=(char far *)36;
    prev=*p;
    *p=our;
    keep(0,500);
    getch();
    }
    void interrupt our()
    {
    int i;
    for(i=0 ;i<=3999;i+=2)
    {
    if(*(scr+i)>='A'&& *(scr+i)<='Z')
      *(scr+i)+=32;
      else
      if(*(scr+i)>='a'&& *(scr+i)<='z')
      *(scr +i)-=32;
    }
    (*prev)();
    }

  2. #2
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    I need some header files from Borland Turbo C++!!! - C and C++ - Forums at ProgrammersHeaven.com

    i think its written for the borland turbo c++ compiler. above is a link to a post with same question and a link for the borland c++ compiler.

  3. #3
    and the hat of wrongness Salem's Avatar
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    > ANY IDEA ON WHY IT IS UNABLE TO FIND THE INCLUDE FILE DOS.H
    Because your compiler isn't a DOS compiler.

    Stop living in the past, by scouting for code which is 20 years old and then expecting it to magically still work on your modern compiler and OS.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  4. #4
    ATH0 quzah's Avatar
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    Step 1 - Download DOSbox.
    Step 2 - Go to Borland's Museum and download Turbo C
    Step 3 ???
    Step 4 - Well it probably doesn't involve anything good, and I highly doubt it involves profit. But I bet it would drive some people crazy to see you still using an old ass compiler!


    Quzah.
    Hope is the first step on the road to disappointment.

  5. #5
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    Quote Originally Posted by roaan View Post
    I am trying to implement a dancing doll in c and i found that the code snippet which i have does not run on visual studio.
    It requires a file dos.h and the visual studio is unable to find it. So on which platform should i run it. I tried running the same on cygwin as well but of no use. ANY IDEA ON WHY IT IS UNABLE TO FIND THE INCLUDE FILE DOS.H

    insert
    Code:
    #include <conio.h>
    # include <dos.h>
    # include <stdio.h>
    void interrupt our();
    void interrupt (*prev)();
    char far *scr =(char far *) 0xB800000L;
    void main()
    {
    unsigned long int far *p;
    p=(char far *)36;
    prev=*p;
    *p=our;
    keep(0,500);
    getch();
    }
    void interrupt our()
    {
    int i;
    for(i=0 ;i<=3999;i+=2)
    {
    if(*(scr+i)>='A'&& *(scr+i)<='Z')
      *(scr+i)+=32;
      else
      if(*(scr+i)>='a'&& *(scr+i)<='z')
      *(scr +i)-=32;
    }
    (*prev)();
    }
    far pointers are meant to access VDU memory. But you are treating it some strange way. What exactly you mean by
    Code:
    *(scr+i)+=32;
    In my opinion you should keep some variable increment that . You are treating char far * as though it is contains some alphabet.

  6. #6
    ATH0 quzah's Avatar
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    Quote Originally Posted by chottachatri View Post
    far pointers are meant to access VDU memory.
    Actually 'far' pointers are used to access memory outside the current segment on old crappy compilers and hardware.

    http://en.wikipedia.org/wiki/Far_pointer


    Quzah.
    Hope is the first step on the road to disappointment.

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