0001-cmdline-nruns.patch
1.28 KB
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let people specify the number of runs on the command line
Patch by Vivi Li <vivi.li@analog.com>
--- a/dhry_1.c
+++ b/dhry_1.c
@@ -66,7 +70,7 @@
/* end of variables for time measurement */
-main ()
+main(int argc, char *argv[])
/*****/
/* main program, corresponds to procedures */
@@ -101,6 +105,13 @@
/* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */
/* overflow may occur for this array element. */
+ Number_Of_Runs = 0;
+ if ( argc == 2 ) {
+ if (atoi(argv[1]) > 0) {
+ Number_Of_Runs = atoi(argv[1]);
+ }
+ }
+
printf ("\n");
printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n");
printf ("\n");
@@ -114,13 +125,17 @@
printf ("Program compiled without 'register' attribute\n");
printf ("\n");
}
- printf ("Please give the number of runs through the benchmark: ");
- {
- int n;
- scanf ("%d", &n);
- Number_Of_Runs = n;
+
+ if (!Number_Of_Runs) {
+ printf ("Please give the number of runs through the benchmark: ");
+ fflush (stdout);
+ {
+ int n;
+ scanf ("%d", &n);
+ Number_Of_Runs = n;
+ }
+ printf ("\n");
}
- printf ("\n");
printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);