46. The method of claim 45 wherein retrieving the length of at least a first one of the first code words comprises retrieving the lengths of all of the first code words but the last of the first code words.
45. A method, comprising: retrieving from an address table stored in a memory an address of a first group of sequential first code words and a length of at least a first one of the first code words; retrieving from the memory the first one of the first code words in response to the address and the length; retrieving from the memory one of a group of sequential second code words each having a same length, the one second code word corresponding to the first one of the first code words; and obtaining a first software-programming instruction from the retrieved first and second code words.