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.
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. 54. The method of claim 45 , further comprising: wherein retrieving from an address table comprises retrieving from the address table a length of all but the last one of the first code words in the first group; retrieving from the address table an address for a second group of the first code words; and determining a length of the last one of the first code words in the first group from the address of the first group of first code words, the lengths of all but the last one of the first code words in the first group, and the address of the second group of first code words.