求一个可以计算梅森素数的小型运算程序！

#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>

unsigned int *arrBase;
unsigned int *arrCac;
unsigned int *arrResult;

unsigned int DecNum=1000;
unsigned int NUM;
unsigned int StartPos;
unsigned int StartPos4;
void initArr(unsigned int* arr)
{
_asm{
mov ecx, NUM
mov ebx, arr
_init:
mov dword ptr [ebx],0
add ebx,4
loop _init
}
}

void addArr(unsigned int* arr,unsigned int* arr2)
{
__asm{
mov ecx, NUM
mov esi, arr
mov edi, arr2
mov eax, ecx
shl eax, 2
add esi, eax
add edi, eax
clc
_add:
sub esi, 4
sub edi, 4
mov eax, [edi]
adc [esi],eax
loop _add
}

}

void subArr(unsigned int* arr,unsigned int* arr2)