|
|
|
|
|
|
by sp332
3220 days ago
|
|
|
The article skipped most of the description of what LSFR's actually do, and the linked Wikipedia article is surprisingly unhelpful. After you read the value of the registers, they all get shifted one bit to the right. The last value simply falls off and is discarded. To generate the value for the new leftmost bit, which is now "empty", you XOR some of the other bits together. Then you read the new value and start over. Eventually the values will repeat, and the goal is to find a configuration that will give you the longest cycle before repeating. |
|
|