tlb.c

#include <stdio.h>
#include <stdlib.h>

#define PAGE_SIZE 511                         /* The Page Size (Any higher on the stack and it will cause a segfault) */
#define TLB_ENTRIES 64                      /* The amount of Translation Lookaside Buffer Entries */
#define M (PAGE_SIZE * TLB_ENTRIES)         /* The distance between the memory addresses accessed by the loop (64KB)*/
#define N (M * TLB_ENTRIES)                 /* The size of the array */


// M is 256
// N is 16384

/*
    Such as that an int is 4 bytes, the size of the array is N * 4 = 16384 * 4 = 65536 bytes.
*/

int main(void) {
    // int X2[N] = {0}; // Causes a segmentation fault (stack overflow) when N is 2KB or 2048
    int X[N] = {0};
    if (X == NULL) {
        printf("Error: malloc failed to allocate memory.\n");
        return EXIT_FAILURE;
    }

    int step = M+1;
    for (int i = 0; i < N; i += step)
        X[i] = X[i] + 1;

    for(int i = 0; i < N; i++) {
        if(i % TLB_ENTRIES == 0)
            if (X[i] == 1)
                printf("%d", X[i]);
            else
                printf("@");
        else
            printf("");
    }

    return EXIT_SUCCESS;
}