#include<stdio.h>
#include<stdlib.h>
#define KEY1 0x5
#define KEY2 0x87
main()
{
unsigned long z;
unsigned int key1=KEY1+0xbd*0x100,key2=KEY2*0x100+1;
char far *v=(char far *)0x80001000;
FILE *fp;
fp=fopen("abd.exe","r+w+b");
if(fp==NULL){printf("error!\n");exit(0);}
printf("Insert a new disk and press a key when ready,This disk must be formatted!!!\n");
getch();
system("fabd3");
system("fabd3");
system("rabd3");
key1=*(v+1)+0xbd*0x100;key2=(*v)*0x100+1;
/*printf("\n%x %x ",key1,key2);*/
if(key1&1==1){/*printf("have 1.. ");*/key1=(key1>>1)|0x8000;} else key1=key1>>1;
key1-=0x5fa1;
key1^=0x86d;
if(key2&1==1){/*printf("have 1.. ");*/key2=(key2>>1)|0x8000;} else key2=key2>>1;
key2-=0x2d7f;
key2^=0x86d;
/*printf("key1=%x key2=%x",key1,key2);*/
fseek(fp,19*512+0x110+0xa,0);
putw(key2,fp);
putw(key1,fp);
fcloseall();
system("copy \\m_temp\\abd.exe a:>nul");
system("copy \\m_temp\\*.bat a:>nul");
system("del \\m_temp\\*.exe");
system("del \\m_temp\\*.com");
system("del \\m_temp\\*.dat");
system("del \\m_temp\\*.bat");
system("cd\\");
system("rd \\m_temp");
exit(0);
}