Diff: crc.cpp

Revision:

3:1250751bf7b0

Parent:

2:c0d73ae91788

--- a/crc.cpp	Tue Jun 13 03:32:52 2017 +0000
+++ b/crc.cpp	Tue Jun 20 05:34:42 2017 +0000
@@ -21,24 +21,24 @@
         output.printf(" - ");                               
     }
     //output.printf("%d",sizeof(f));
-    output.printf("\n The data to be analyzed is : ");
+   // output.printf("\n The data to be analyzed is : ");
     int frame[v+16];
     for(h1=0; h1<v; h1++) {                                                     //storing the binary data in frame array                                                    
-        output.printf("%d",binary1[h1]);
+       // output.printf("%d",binary1[h1]);
         frame[h1]=binary1[h1];
     }
     //frame[2]=0;
-    output.printf("\n The value of v is : %d ",v);                              //Printing the value of V i.e total binary no.
+ /*   output.printf("\n The value of v is : %d ",v);                              //Printing the value of V i.e total binary no.
 
     output.printf("\n Sender Side:");
-    output.printf("\n Frame: ");
-    for(i1=0; i1<v; i1++) {                                                     // total binary stream printing 
+    output.printf("\n Frame: ");*/
+  /*  for(i1=0; i1<v; i1++) {                                                     // total binary stream printing 
         output.printf("%d",frame[i1]);
     }
-    output.printf("\n Generator : ");                                           // generator for CRC checking
-    for(i1=0; i1<16; i1++) {
+    output.printf("\n Generator : ");            */                               // generator for CRC checking
+   /* for(i1=0; i1<16; i1++) {
         output.printf("%d",generator[i1]);
-    }
+    }*/
 
     //Append 0's
     int rs1=16-1;
@@ -51,10 +51,10 @@
         temp2[i1]=frame[i1];
     }
 
-    output.printf("\n Message after appending 0's :");
+  /*  output.printf("\n Message after appending 0's :");
     for(i1=0; i1<v+rs1; i1++) {                                                 //printing the data after appending zeros
         output.printf("%d",temp2[i1]);
-    }
+    }*/
 
     //Division
     for(i1=0; i1<v; i1++) {                                                     //CRC generating  through division operation
@@ -78,12 +78,12 @@
         crc[i1]=temp2[j1];
     }
 
-    output.printf("\n CRC bits: ");                                             
+    /*output.printf("\n CRC bits: ");                                             
     for(i1=0; i1<rs1; i1++) {                                                   //printing CRC bits
         output.printf("%d",crc[i1]);
-    }
+    }*/
 
-    output.printf("\n Transmitted Frame: ");
+    //output.printf("\n Transmitted Frame: ");
     int tf2[v+16];
     char tf3[v+16];
     for(i1=0; i1<v; i1++) {                                                     // copying the data from one to another                          
@@ -92,24 +92,36 @@
     for(i1=v,j1=0; i1<v+rs1; i1++,j1++) {                                       // Adding CRC bits to the data
         tf2[i1]=crc[j1];
     }
-    for(i1=0; i1<v+rs1; i1++) {                                                 // printing the data after adding the CRC bits to the data
+ /*   for(i1=0; i1<v+rs1; i1++) {                                                 // printing the data after adding the CRC bits to the data
         output.printf("%d",tf2[i1]);
-    }
+    }*/
 
     tf2[v+rs1]=0;
 
+ /*   output.printf("\n The final data to be sent is : ");                        // printing the Final data 
+    for(i1=0; i1<=v+rs1; i1++) {
+        output.printf("%d",tf2[i1]);
+    }*/
+    
+   /* for(i1=0;i1<7;i1++)
+    {
+        tf2[i1]=1;
+    }
+    for(i1=136;i1<144;i1++)
+    {
+        tf2[i1]=1;
+    }
     output.printf("\n The final data to be sent is : ");                        // printing the Final data 
     for(i1=0; i1<=v+rs1; i1++) {
         output.printf("%d",tf2[i1]);
-    }
-
+        }*/
     for(i1=0; i1<=v+rs1; i1++) {
         charBinary(tf2[i1]);
     }
-    output.printf("\n The final data to be sent is : ");
+   /* output.printf("\n The final data to be sent is : ");
     for(i1=0; i1<=v+rs1; i1++) {
         output.printf("%c",binary2[i1]);
-    }
+    }*/
     printChar(binary2);
 
     char* str=result1;
@@ -126,79 +138,41 @@
     int i,j,k,l;
     int rs=15;
     v=0;
-    output.printf("\n Receiver side : ");
-    output.printf("\n Received Frame: ");
+ /*   output.printf("\n Receiver side : ");
+    output.printf("\n Received Frame: ");*/
 
     for(int m=0; m<18; m++) {
         printBinary(a1[m]);
         output.printf("-");
     }
-    for(i=0; i<v; i++) {
+    /*for(i=0; i<v; i++) {
         output.printf("%d",binary1[i]);
-    }
+    }*/
     v=v-16;
     int tf[v+16];
     for(i=0; i<v+rs; i++) {
         tf[i]=binary1[i];
     }
-    output.printf("\n");
-    output.printf("The data to be Analyzed on the receiving side : ");
-    for(i=0; i<v+rs; i++) {
+    /*output.printf("\n");
+    output.printf("The data to be Analyzed on the receiving side : ");*/
+ /*   for(i=0; i<v+rs; i++) {
         output.printf("%d",tf[i]);
-    }
+    }*/
     int temp[v+16];
     int temp3[v+16];
     for(i=0; i<v+rs; i++) {
         temp[i]=tf[i];
-        temp3[i]=tf[i];
+        //temp3[i]=tf[i];
     }
 
-          //changing data
-
-    /*for(i=0; i<20; i++) {
-        if(i%2==0) {
-            tamp3[i]==0;
-        }
-        else
-        tamp3[i]==1;
-        
-    }
-    
-    
-    
-    for(i=20;i<143;i++)
-    {
-        temp3[i]=temp[i];
-        }
-        for(i=0=i<sizeof(temp3);i++)
-        {
-             output.printf("after 20 wrong bits added in the binary data %d",binary1[i]);
-            }
-*/
-
-
-    /*//Division
-    for(i=0; i<v+rs; i++) {
+         
+    //Division
+    for(i=0; i<v; i++) {
         j=0;
         k=i;
         if (temp[k]>=generator[j]) {
             for(j=0,k=i; j<16; j++,k++) {
-                if((temp[k]==1 && generator[j]==1) || (temp[k]==0 && generator[j]==0)) {
-                    temp[k]=0;
-                } else {
-                    temp[k]=1;
-                }
-            }
-        }
-    }*/
-
-    //Division
-    for(i=0; i<v+rs; i++) {
-        j=0;
-        k=i;
-        if (temp[k]>=generator[j]) {
-            for(j=0,k=i; j<16; j++,k++) {
-                if((temp[k]==1 && generator[j]==1) || (temp[k]==0 && generator[j]==0)) {
+                if(temp[k] == generator[j]) {
                     temp[k]=0;
                 } else {
                     temp[k]=1;
@@ -207,7 +181,7 @@
         }
     }
 
-    output.printf("\n Reaminder: ");
+   output.printf("\n Reaminder: ");
     int rrem[16];
     for (i=v,j=0; i<v+rs; i++,j++) {
         rrem[j]= temp[i];
@@ -220,6 +194,7 @@
     for(i=0; i<rs; i++) {
         if(rrem[i]!=0) {
             flag=1;
+            break;
         }
     }