#ifndef TIMING_H

#define TIMING_H

#define NUM_TIMINGS 100000

int compareDouble(const void *x, const void *y)

{

double xx = *(double*)x, yy = *(double*)y;

if (xx < yy) return -1;

if (xx > yy) return 1;

return 0;

}

unsigned long long int startTimer(void)

{

unsigned a, d;

__asm__ volatile("CPUID\n\t"

"RDTSC\n\t"

"mov %%edx, %0\n\t"

"mov %%eax, %1\n\t": "=r" (d),

"=r" (a):: "%rax", "%rbx", "%rcx", "%rdx");

return ((unsigned long long)a) | (((unsigned long long)d) << 32);;

}

unsigned long long int endTimer(void)

{

unsigned a, d;

__asm__ volatile("RDTSCP\n\t"

"mov %%edx, %0\n\t"

"mov %%eax,%1\n\t"

"CPUID\n\t": "=r" (d), "=r" (a)::

"%rax", "%rbx", "%rcx", "%rdx");

return ((unsigned long long)a) | (((unsigned long long)d) << 32);;

}

#endif