From: David B. <Dav...@mo...> - 2004-07-08 15:47:06
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Reading the comment in syndtable.cc // Could convert this to unsigned long long, but there isn't much point. // the syndrome table can already have 2^32 rows with n columns, which // is already unrealistically large. The result is DON'T use this with // large BCH codes!!!! you'll see why this limitation exists. In fact the problem is not the syndrome table itself, but the calculation of all possible ways to have n bit errors in a codeword which can be extremely large. I imagine there is a better way to calculate the syndrome table and in fact until this constraint is relaxed BCH and RS codes are the best bet :-) ... If you have any better way to calculate the syndrome table I'd be happy to get some advice.. D. -- David Bateman Dav...@mo... Motorola CRM +33 1 69 35 48 04 (Ph) Parc Les Algorithmes, Commune de St Aubin +33 1 69 35 77 01 (Fax) 91193 Gif-Sur-Yvette FRANCE The information contained in this communication has been classified as: [x] General Business Information [ ] Motorola Internal Use Only [ ] Motorola Confidential Proprietary |