diff options
Diffstat (limited to 'fixtest/main.c')
| -rw-r--r-- | fixtest/main.c | 158 |
1 files changed, 86 insertions, 72 deletions
diff --git a/fixtest/main.c b/fixtest/main.c index e4f105a..36eec44 100644 --- a/fixtest/main.c +++ b/fixtest/main.c @@ -1,87 +1,101 @@ +#include "hiclock.h"
+#include <inttypes.h>
+#include <libfixmath/fixmath.h>
+#include <math.h>
#include <stdio.h>
#include <stdlib.h>
-#include <math.h>
#include <time.h>
-#include <inttypes.h>
-
-#include <libfixmath/fixmath.h>
-
-#include "hiclock.h"
-//#define fix_func fix16_exp
-//#define fix_func_str "fix16_exp"
-//#define flt_func expf
-//#define flt_func_str "expf"
-
-//#define fix_func fix16_atan
-//#define fix_func_str "fix16_atan"
-//#define flt_func atanf
-//#define flt_func_str "atanf"
-
-#define fix_func fix16_sin
+#define EXP
+//#define ATAN
+//#define SIN
+//#define SQRT
+
+#ifdef EXP
+#define fix_func fix16_exp
+#define fix_func_str "fix16_exp"
+#define flt_func expf
+#define flt_func_str "expf"
+#endif
+
+#ifdef ATAN
+#define fix_func fix16_atan
+#define fix_func_str "fix16_atan"
+#define flt_func atanf
+#define flt_func_str "atanf"
+#endif
+
+#ifdef SIN
+#define fix_func fix16_sin
#define fix_func_str "fix16_sin"
-#define flt_func sinf
+#define flt_func sinf
#define flt_func_str "sinf"
+#endif
-//#define fix_func fix16_sqrt
-//#define fix_func_str "fix16_sqrt"
-//#define flt_func sqrtf
-//#define flt_func_str "sqrtf"
-
+#ifdef SQRT
+#define fix_func fix16_sqrt
+#define fix_func_str "fix16_sqrt"
+#define flt_func sqrtf
+#define flt_func_str "sqrtf"
+#endif
-
-int main(int argc, char** argv) {
+int main(int argc, char **argv)
+{
printf("libfixmath test tool\n");
hiclock_init();
- uintptr_t args = (1 << 8);
- uintptr_t iter = (1 << 8);
- uintptr_t pass = (1 << 8);
-
- uintptr_t i;
- srand(time(NULL));
-
- hiclock_t fix_duration = 0;
- hiclock_t flt_duration = 0;
- fix16_t fix_error = 0;
-
- uintptr_t k;
- for(k = 0; k < pass; k++) {
- fix16_t fix_args[args];
- for(i = 0; i < args; i++)
- fix_args[i] = (rand() ^ (rand() << 16));
- fix16_t fix_result[args];
- hiclock_t fix_start = hiclock();
- for(i = 0; i < iter; i++) {
- uintptr_t j;
- for(j = 0; j < args; j++)
- fix_result[j] = fix_func(fix_args[j]);
- }
- hiclock_t fix_end = hiclock();
-
- float flt_args[args];
- for(i = 0; i < args; i++)
- flt_args[i] = fix16_to_float(fix_args[i]);
- float flt_result[args];
- hiclock_t flt_start = hiclock();
- for(i = 0; i < iter; i++) {
- uintptr_t j;
- for(j = 0; j < args; j++)
- flt_result[j] = flt_func(flt_args[j]);
- }
- hiclock_t flt_end = hiclock();
-
- for(i = 0; i < args; i++)
- fix_error += abs(fix16_from_float(flt_result[i]) - fix_result[i]);
- flt_duration += (flt_end - flt_start);
- fix_duration += (fix_end - fix_start);
- }
-
- printf("%16s: %08"PRIuHICLOCK" @ %"PRIu32"Hz\n", flt_func_str, flt_duration, HICLOCKS_PER_SEC);
- printf("%16s: %08"PRIuHICLOCK" @ %"PRIu32"Hz\n", fix_func_str, fix_duration, HICLOCKS_PER_SEC);
- printf(" Difference: %08"PRIiHICLOCK" (% 3.2f%%)\n", (flt_duration - fix_duration), ((fix_duration * 100.0) / flt_duration));
- printf(" Error: %f%%\n", ((fix16_to_dbl(fix_error) * 100.0) / (args * pass)));
+ uintptr_t args = (1 << 8);
+ uintptr_t iter = (1 << 8);
+ uintptr_t pass = (1 << 8);
+
+ uintptr_t i;
+ srand(time(NULL));
+
+ hiclock_t fix_duration = 0;
+ hiclock_t flt_duration = 0;
+ fix16_t fix_error = 0;
+
+ uintptr_t k;
+ for (k = 0; k < pass; k++)
+ {
+ fix16_t fix_args[args];
+ for (i = 0; i < args; i++) fix_args[i] = (rand() ^ (rand() << 16));
+ fix16_t fix_result[args];
+ hiclock_t fix_start = hiclock();
+ for (i = 0; i < iter; i++)
+ {
+ uintptr_t j;
+ for (j = 0; j < args; j++) fix_result[j] = fix_func(fix_args[j]);
+ }
+ hiclock_t fix_end = hiclock();
+
+ float flt_args[args];
+ for (i = 0; i < args; i++) flt_args[i] = fix16_to_float(fix_args[i]);
+ float flt_result[args];
+ hiclock_t flt_start = hiclock();
+ for (i = 0; i < iter; i++)
+ {
+ uintptr_t j;
+ for (j = 0; j < args; j++) flt_result[j] = flt_func(flt_args[j]);
+ }
+ hiclock_t flt_end = hiclock();
+
+ for (i = 0; i < args; i++)
+ fix_error += abs(fix16_from_float(flt_result[i]) - fix_result[i]);
+ flt_duration += (flt_end - flt_start);
+ fix_duration += (fix_end - fix_start);
+ }
+
+ printf("%16s: %08" PRIuHICLOCK " @ %" PRIu32 "Hz\n", flt_func_str,
+ flt_duration, HICLOCKS_PER_SEC);
+ printf("%16s: %08" PRIuHICLOCK " @ %" PRIu32 "Hz\n", fix_func_str,
+ fix_duration, HICLOCKS_PER_SEC);
+ printf(" Difference: %08" PRIiHICLOCK " (% 3.2f%%)\n",
+ (flt_duration - fix_duration),
+ ((fix_duration * 100.0) / flt_duration));
+ printf(" Error: %f%%\n",
+ ((fix16_to_dbl(fix_error) * 100.0) / (args * pass)));
return EXIT_SUCCESS;
}
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