sqrt517

#include <80c517.h>

float sqrt517 (
  float x);      /* value to calculate square root of */

The sqrt517 function calculates the square root of x.

Note

• This routine uses the arithmetic unit of the Infineon C517x/C509 to provide accelerated execution speed. Do not use this routine with a CPU that does not support this feature.

The sqrt517 function returns the positive square root of x.

• If x < 0 sqrt517 returns NaN.

pow, sqrt

#include <math.h>
#include <80c517.h> /* for printf */

void tst_sqrt517 (void) {
  float x;
  float y;

  x = 25.0;
  y = sqrt517 (x); /* y = 5 */

  printf ("SQRT517(%f) = %f\n", x, y);
}