Srivishnu Alvakonda / Mbed 2 deprecated Dhrystone_benchmark

Module 3_DMIPS ECEN 5803 Project 1 Submitted by 1. Rahul Yamasani 2. Srivishnuj Alvakonda

Dependencies:   mbed

Fork of Dhrystone by Jörg Mehring

main.cpp

Committer:
sral4054
Date:
2017-10-12
Revision:
1:a4840e30d4a9
Parent:
0:f96b0b385ec4

File content as of revision 1:a4840e30d4a9:

#include "mbed.h"
#include "dhry.h"

DigitalOut myled(LED1);
Timer timer;
Serial pc(USBTX, USBRX);  //serial channel over HDK USB interface

int main() {
    double benchtime, dps, VAX_DMIPS;
    unsigned long loops;
    
    pc.baud(9600);
    pc.printf("Dhrystone Benchmark Program C/1 12/01/84\r\n");
    timer.start();
    while(1) {
        loops = 0l;
        myled = 1;
        timer.reset();
        do {
            Proc0();
            Proc0();
            loops += LOOPS;
            benchtime = timer.read();
        } while (benchtime <= 20.000);
        myled = 0;
        dps = (double)loops / benchtime;
        VAX_DMIPS = dps/1757.0;
        pc.printf("Dhrystone time for %ld passes = %.3f sec\r\n", loops, benchtime);
        pc.printf("This machine benchmarks at %.0f dhrystones/second\r\n", dps);
        pc.printf("This machine has %.0f  VAX DMIPS\r\n", VAX_DMIPS);
        wait(1.0);
    }
}