Module 3_DMIPS ECEN 5803 Project 1 Submitted by 1. Rahul Yamasani 2. Srivishnuj Alvakonda
Fork of Dhrystone by
main.cpp@1:a4840e30d4a9, 2017-10-12 (annotated)
- Committer:
- sral4054
- Date:
- Thu Oct 12 03:30:29 2017 +0000
- Revision:
- 1:a4840e30d4a9
- Parent:
- 0:f96b0b385ec4
Module 3_DMIPS ECEN 5803 Project 1; ; Submitted by; 1. Rahul Yamasani; 2. Srivishnuj Alvakonda;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jmehring | 0:f96b0b385ec4 | 1 | #include "mbed.h" |
jmehring | 0:f96b0b385ec4 | 2 | #include "dhry.h" |
jmehring | 0:f96b0b385ec4 | 3 | |
jmehring | 0:f96b0b385ec4 | 4 | DigitalOut myled(LED1); |
jmehring | 0:f96b0b385ec4 | 5 | Timer timer; |
jmehring | 0:f96b0b385ec4 | 6 | Serial pc(USBTX, USBRX); //serial channel over HDK USB interface |
jmehring | 0:f96b0b385ec4 | 7 | |
jmehring | 0:f96b0b385ec4 | 8 | int main() { |
sral4054 | 1:a4840e30d4a9 | 9 | double benchtime, dps, VAX_DMIPS; |
jmehring | 0:f96b0b385ec4 | 10 | unsigned long loops; |
jmehring | 0:f96b0b385ec4 | 11 | |
jmehring | 0:f96b0b385ec4 | 12 | pc.baud(9600); |
sral4054 | 1:a4840e30d4a9 | 13 | pc.printf("Dhrystone Benchmark Program C/1 12/01/84\r\n"); |
jmehring | 0:f96b0b385ec4 | 14 | timer.start(); |
jmehring | 0:f96b0b385ec4 | 15 | while(1) { |
jmehring | 0:f96b0b385ec4 | 16 | loops = 0l; |
jmehring | 0:f96b0b385ec4 | 17 | myled = 1; |
jmehring | 0:f96b0b385ec4 | 18 | timer.reset(); |
jmehring | 0:f96b0b385ec4 | 19 | do { |
jmehring | 0:f96b0b385ec4 | 20 | Proc0(); |
sral4054 | 1:a4840e30d4a9 | 21 | Proc0(); |
jmehring | 0:f96b0b385ec4 | 22 | loops += LOOPS; |
jmehring | 0:f96b0b385ec4 | 23 | benchtime = timer.read(); |
sral4054 | 1:a4840e30d4a9 | 24 | } while (benchtime <= 20.000); |
jmehring | 0:f96b0b385ec4 | 25 | myled = 0; |
jmehring | 0:f96b0b385ec4 | 26 | dps = (double)loops / benchtime; |
sral4054 | 1:a4840e30d4a9 | 27 | VAX_DMIPS = dps/1757.0; |
sral4054 | 1:a4840e30d4a9 | 28 | pc.printf("Dhrystone time for %ld passes = %.3f sec\r\n", loops, benchtime); |
sral4054 | 1:a4840e30d4a9 | 29 | pc.printf("This machine benchmarks at %.0f dhrystones/second\r\n", dps); |
sral4054 | 1:a4840e30d4a9 | 30 | pc.printf("This machine has %.0f VAX DMIPS\r\n", VAX_DMIPS); |
jmehring | 0:f96b0b385ec4 | 31 | wait(1.0); |
jmehring | 0:f96b0b385ec4 | 32 | } |
jmehring | 0:f96b0b385ec4 | 33 | } |