// ========================================
// 將有 記憶體禁訪 失敗問題

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

// ======================================
#define FFLUSH() {while(getchar()!='\n');}
#define YES 'y'
#define NO 'n'

// ======================================
// typedef variable
typedef unsigned char       byte;
typedef unsigned short      ushort;
typedef unsigned int        uint;
typedef unsigned long long  ulong;

typedef unsigned char       *addr1;
typedef unsigned short      *addr2;
typedef /*unsigned*/ int    *addr4;
typedef unsigned long long  *addr8;


// ======================================
// global variable , save for key address
#define MAX 2000
#define LOW 0x00010000
#define UP  0x7fffffff
addr4 addr_rec[MAX]={NULL};

// ======================================
// show addr_rec
void show_addr()
{
    uint i=0;
    addr4 ptr=addr_rec[0];
    while(ptr!=NULL){
	   printf("%x:%8x(%d)\n",ptr, *ptr, *ptr);
	   ++ptr;
    }
}

// ======================================
// search for target
void search_target(int target)
{
    static int first = 1; // first to find
    static int cur_cnt=0; // the addr_rec's count
    uint i=0, cur_cnt2=0;
    addr4 ptr=(addr4)LOW;

    if(first){
	   while(ptr!=(addr4)UP && cur_cnt!=MAX){
		  if(*ptr==target) {
			 addr_rec[cur_cnt] = ptr, ++cur_cnt;
		  }
		  ++ptr;
		  printf("%u\n", cur_cnt);
	   }
    }
}

// ======================================
// main function
int main()
{
    int target=0;
    char again=NO;

    do{
	   printf("input target:");
	   scanf("%d", &target);
	   search_target(target);
	   show_addr();

	   printf("search again(y to again)? ");
	   again = getchar();
	   FFLUSH();
    }while(again==YES);
    return 0;
}