#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
void main()
{
  FILE *f1,*f2,*f3;
int csaddr,progaddr,execaddr,cslen,i,j,k=0,staddr1,staddr2,addr2;
int modadr,val1,adr2,outadr1,esadr;
  char outadr[10],adr1[10],name[20],val[10],pname[10],symname[10],adr[10];
  char l[10],line[80],len[10],staddr[10],addr[10],addr1[10];
f3=fopen("estab.txt","r");
f2=fopen("dupout.txt","w");
clrscr();
printf("Enter the starting address\n");
scanf("%d",&progaddr);
csaddr=progaddr;
execaddr=progaddr;
do
{
 if(k==0)
 f1=fopen("link2in.txt","r");
 if(k==1)
 f1=fopen("linking2.txt","r");
 do
 {
 fscanf(f1,"%s",line);
 if(line[0]=='H')
 {
  for(i=9,j=0;i<15,j<6;i++,j++)
  addr[j]=line[i];
  addr[j]='\0';
  for(i=16,j=0;i<20,j<5;i++,j++)
  len[j]=line[i];
  len[j]='\0';
 cslen=atoi(len);
}
 else if(line[0]!='E')
 {
  do
    {
      fscanf(f1,"%s",line);
      if(line[0]=='T')
      {
    for(i=2,j=0;i<8,j<6;i++,j++)
        staddr[j]=line[i];
        staddr[j]='\0';
  staddr1=atoi(staddr);
  staddr2=staddr1+progaddr;
  i=12;
  while(line[i]!='$')
  {
    if(line[i]!='^')
    {
      printf("00%d\t%c%c\n",staddr2,line[i],line[i+1]);
      fprintf(f2,"00%d\t%c%c\n",staddr2,line[i],line[i+1]);
      staddr2++;
      i=i+2;
     }
    else
    i++;
 }
fclose(f2);
}
else if(line[0]=='M')
{
  for(i=13,j=0;line[i]!='$',j<5;i++,j++)
  name[j]=line[i];
  name[j]='\0';
 do
 {
  fscanf(f3,"%s%s%s%s",pname,symname,adr,l);
  if(strcmp(name,symname)==0)
  {
    for(i=2,j=0;i<8,j<6;i++,j++)
    adr1[j]=line[i];
    adr1[j]='\0';
  adr2=atoi(adr1);
  adr2=adr2+progaddr;
f2=fopen("dupout.txt","r");
fscanf(f2,"%s%s",outadr,val);
printf("The address after modification\n");
do
{
 outadr1=atoi(outadr);
if(adr2==outadr1)
{
 val1=atoi(val);
esadr=atoi(adr);
modadr=val1+esadr;
printf("%s\t\t%d\n",outadr,modadr);
}
fscanf(f2,"%s%s",outadr,val);
}
 while(!feof(f2));
}

}while(!feof(f3));
}
}while(line[0]!='E');
}
else
{
  for(i=2,j=0;i<8,j<6;i++,j++)
  addr1[j]=line[i];
  addr1[j]='\0';
 if(strcmp(addr,addr1)==0)
{
 addr2=atoi(addr1);
execaddr=csaddr+cslen;
}
else
 csaddr=csaddr+cslen;
}
fscanf(f1,"%s",line);
}while(!feof(f1));
k++;
}while(k<=2);
fclose(f1);
fclose(f2);
fclose(f3);
printf("The exec addr is %d",execaddr);
getch();
}