gistfile1.txt

#include <stdio.h>

#define CACHE_MISS	0x100

int loop(int n, int a) {
	int b = 0;
	for(int i=0; i<n; i++) {
		b = a + b;
	}
	return b;
}

int main() {
	int a = 1;
	int n = 200;
	int count = 0;
	
	printf("Configuring event monitor ...\n");
	/*
	// initialize counters here
	// should start tracking cache misses with 0x100
	__asm__ volatile("csrw mhpmevent3, %0"
				:
				: "r"(CACHE_MISS)
			);
	*/
	printf("Executing loop ...\n");
	loop(n, a);
	
	printf("Reading event counter ...\n");
	// read counters here
	__asm__ volatile("csrr %0, hpmcounter3"
				: "=r"(count)
			);
	printf("Cache misses: %d\n", count);
	return 0;
}