11sub.c

#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <ansidecl.h>

unsigned int array1_size = 16;
uint8_t array1[16] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 };
uint8_t array2[256 * 512];
uint8_t temp = 0; /* Used so compiler won't optimize out victim_function() */

int mymemcmp (const PTR str1, const PTR str2, size_t count);
void victim_function_v11(size_t x) {
  if (x < array1_size)
    temp = mymemcmp(&temp, array2 + (array1[x] * 512), 1);
}

// Implementation of the semantics on microsoft C++ compiler
int mymemcmp (const PTR str1, const PTR str2, size_t count){
  register const unsigned char *s1 = (const unsigned char*)str1;
  register const unsigned char *s2 = (const unsigned char*)str2;
  if(!count) return 0;
  while (--count && *s1 == *s2){
    s1++;
    s2++;
    }
  return (*s1-*s2);
}