Changeset b9b1bde in thomson

Timestamp:

Feb 17, 2013, 9:38:35 PM (11 years ago)

Author:

Adrien Destugues <pulkomandy@…>

Branches:

main

Children:

732c820

Parents:

0c42eb7

Message:

Fix checksum computations

git-svn-id: ​svn://localhost/thomson@36 85ae3b6b-dc8f-4344-a89d-598714f2e4e5

File:

• tools/f2k5.cpp (modified) (2 diffs)

tools/f2k5.cpp

@@ -40 +40 @@
                 head[l++] = 0;
                 head[l] = 0;
+
                 for(int i = 2; i < l; i++)
                         head[l] += head[i];
-                head[l++] ^= 255;
+                head[l] = -head[l];
+                l++;
                 fwrite(head, 1, 17, out);
 
@@ -57 +59 @@
                         fwrite(head, 1, 2, out);
                         fwrite(buf, 1, l, out);
+
+                        head[0] = 0;
                         while(l > 0)
-                                head[0] += buf[--l];
-                        head[0] ^= 0xFF;
+                                head[0] -= buf[--l];
                         fwrite(head, 1, 1, out);
                 }