#include <stdio.h>
#include <stdint.h>

extern volatile uint32_t uwTick;
extern uint32_t SystemCoreClock;

float foo=2.2;
double bar=3.3;
int main(int argc, const char *argv[])
{
  printf ("argc is %d\n", argc);
  for (int i = 0; i < argc; i++)
    printf ("%s ", argv[i]);

  printf ("\ncompiler version %s\n", __VERSION__);
  printf ("%f %lf\n", foo*foo, bar*bar);
  printf("clock is %ld  \n", SystemCoreClock);
  printf("clock is %ld Mhz \n", SystemCoreClock/1000000);
  uint32_t start = uwTick;
  uint32_t end;

  {
    volatile unsigned int i = 0xfffff;

    while(i--);
  }
  end = uwTick;
  printf("Loop run in %d ms\n", (int)(end - start));
  return 0;
}