main.cpp

example of some verilog code

#include <iostream>
#include "Timer.h"

using namespace std;
double fact(int n);
double fact1 (int n);

int main (){

  double x, y, z, prod = 1.0;
  Timer T, S;
    
  T.start();
  for(int i=0;i<1000000;i++){
    y = fact(25);
  }T.stop();
  x = T.seconds();
  z = T.time();
	cout<<"Recursion time "<<z<<" clocks or "<<x<<" seconds"<<endl;
	
	T.reset();
	S.start();
	for(int i=1;i<=1000000;i++){
	  y = fact1(25);
	}
	S.stop();
	x = S.seconds();
    z = S.time();
	
	cout<<"Iteration time: "<<z<<" clocks or "<<x<<" seconds"<<endl;
	return 0;
}

/*************** Recursive function ********************/
double fact(int n){
  double r;
  if(n==0 || n==1)
    r=1;
  else 
    r = n*fact(n-1);
  return r;
}

/*************** Iterative function *******************/
double fact1 (int n){

 double prod = 1.0;
 for(int i=1;i<=n;i++){
	  prod = i*prod;
 }
 return prod;
}