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- /* benchmul - benchmark for int multiply
- * 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 int
- #include <stdio.h>
- main(int ac, char *av[])
- { STOR_CL TYPE a, b, c;
- long d, major;
- printf ("enter number of iterations\n");
- scanf ("%ld", &major);
- printf("executing %ld iterations\n", major);
- scanf ("%d", &a);
- scanf ("%d", &b);
- for (d = 1; d <= major; ++d)
- {
- /* inner loop executes 1000 selected operations */
- for (c = 1; c <= 40; ++c)
- {
- a = 3 *a*a*a*a*a*a*a*a * a*a*a*a*a*a*a*a * a*a*a*a*a*a*a*a * a; /* 25 * */
- }
- }
- printf("a=%d\n", a);
- }
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