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July 25, 2008 02:25pm pdt
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Convert c code into assembly code

Tags: c, convert, assembly, code
Hey. I hope you can help me with converting some c code into assembly code, i have tried much now, and i still don't get it. What would help me alot, would be some comments for each line in the assembly code, so i better can understand to convert process...

Here is the code:

/* Standard quicksort. */
void quicksort(int a[], int left, int right)
{
      int lp = left - 1;
      int rp = right;
      int v = a[right]; /* the partioning element */

      if (right <= left)
            /* Array has one or null elements to sort */
            return;

      /* No elements to the left of lp are greater than the partioning elemnt. */
      while (1) {
            while (a[++lp] < v)
                  ;

            while (v < a[--rp])
                  /* In case the partioning element is the smallest in the array */
                  if (rp == left)
                        break;

            if (lp >= rp)
                  break;

            /* Deadlock, switch elements and continue */
            swap(&a[lp], &a[rp]);
      }
      /* This completes the partioning */
      swap(&a[lp], &a[right]);

      /* Now every element to the left of a[lp] are smaller than a[lp],
       * and every element to the right is larger. */

      quicksort(a, left, lp - 1);
      quicksort(a, lp + 1, right);
}

static void swap(int *x, int *y)
{
      int temp = *x;
      *x = *y;
      *y = temp;
}



Hope you can help.

Terje.
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Question Stats
Zone: Programming
Question Asked By: tjodolf
Solution Provided By: Dawaffleman
Participating Experts: 5
Solution Grade: B
Views: 167
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