Pico2DoubleNoRiscV1V01.c

#include <stdio.h>

#include "pico/stdlib.h"

float x,sum ;

void doubleTest1(){

  double sum=0 ;

  double x=1.0 ;

  double val=1.0 ;

  int time1=time_us_32() ;

  for(int kk=0 ; kk<100 ; kk++){

    x=x+1.234 ;

    sum=sum+1.0/(x*x)+x+val ;

    val=val+0.01234+2.34/(sum*sum) ;

    }

  int time2=time_us_32() ;

  printf("time2-time1=%6d  ",time2-time1) ;

  printf("x=%10.5f sum=%10.5f val=%10.5f\n",x,sum,val) ;

  }

void doubleTest2(){

  while(1){

    doubleTest1() ;

    sleep_ms(1000) ;

    }

  }

int main(){

  stdio_init_all();

  doubleTest2() ;

  }