+ tfc_say(" hexc:nr[,hexc:nr,...]: construct counter from given pattern.");
+ tfc_say(" Example: \"ff:124,08:2,80:2\" will fill counter first with 124 0xff bytes,");
+ tfc_say(" then with 2 0x08 bytes, then 2 0x80 bytes. To fill with zeroes, it is");
+ tfc_say(" simple to specify just a \"0:128\" as a pattern. Note that bytes that");
+ tfc_say(" exceed CTR space will be just dropped, and any unused bytes are set to zeroes.");