Category : C Source Code
Archive   : PH_BENCH.ZIP
Filename : BENCHSHO.C

 
Output of file : BENCHSHO.C contained in archive : PH_BENCH.ZIP
/* benchsho - benchmark for short integers
* Thomas Plum, Plum Hall Inc, 609-927-3770
* If machine traps overflow, use an unsigned type
* Let T be the execution time in milliseconds
* Then average time per operator = T/major usec
* (Because the inner loop has exactly 1000 operations)
*/
#define STOR_CL auto
#define TYPE short
#include
main(ac, av)
int ac;
char *av[];
{
STOR_CL TYPE a, b, c;
long d, major, atol();
static TYPE m[10] = {0};

major = atol(av[1]);
printf("executing %ld iterations\n", major);
a = b = (av[1][0] - '0');
for (d = 1; d <= major; ++d)
{
/* inner loop executes 1000 selected operations */
for (c = 1; c <= 40; ++c)
{
a = a + b + c;
b = a >> 1;
a = b % 10;
m[a] = a;
b = m[a] - b - c;
a = b == c;
b = a | c;
a = !b;
b = a + c;
a = b > c;
}
}
printf("a=%d\n", a);
}


  3 Responses to “Category : C Source Code
Archive   : PH_BENCH.ZIP
Filename : BENCHSHO.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/