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

//#define SIZE 32*1024*1024

unsigned int patt[] = {
    0xaaaaaaaa,
    0x55555555,
    0xffffffff,
    0xa5a5a5a5,
    0x5a5a5a5a,
    0x11111111,
    0x22222222,
    0x44444444,
    0x88888888,
    0x00000000
};


int main(int argc, char **argv){

    int i, k;
    unsigned int *mem, SIZE;

    if(argc < 2){
        printf("Format is: %s SIZE\n", argv[0]);
        exit(1);
    }

    SIZE = strtol(argv[1], 0x0, 0x0);

    fprintf(stderr, "Doing Malloc\n");
    mem = (unsigned int *) malloc(SIZE);
    for(k = 0; patt[k] != 0x0; k++){
        fprintf(stderr, "Doing Write pattern: 0x%08x\n", patt[k]);
        for(i = SIZE>>2; i > 0; i--){
            mem[i] = patt[k];
        }
        fprintf(stderr, "Doing Read  pattern: 0x%08x\n", patt[k]);
        for(i = SIZE>>2; i > 0; i--){
            if(mem[i] != patt[k]){
                printf("Mem missmatch at: %d, with patt: 0x%08x\n", i, patt[k]);
            }
        }
        fprintf(stderr, "Done pattern: 0x%08x\n", patt[k]);
    }
    printf("\n");
    return 0;
}