Reintroduced Brent's algorithm for cycle detection in lfsr_mount

2023-04-27 00:41:24 -05:00
parent 6236f460a4
commit 85ebdd0881
3 changed files with 69 additions and 3 deletions
@@ -878,7 +878,7 @@ def main(disk, block1=0, block2=None, *,
        weights.append(weight)

        # compare with sequence arithmetic
-        if off and ((rev - revs[i]) & 0x80000000):
+        if off and not ((rev - revs[i]) & 0x80000000):
            i = len(revs)-1

    # print contents of the winning metadata block