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- Path: peer-news.britain.eu.net!uknet!news@Britain.EU.net
- From: Matthew Towler <Matthew.Towler@unicam.co.uk>
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: DICE with an `020
- Date: 28 Feb 1996 15:11:35 GMT
- Organization: EUnet-GB distributed news service, +44 227 266466
- Message-ID: <4h1rb7$d1v@bsdi201.britain.eu.net>
- NNTP-Posting-Host: 193.122.53.13
-
- 68020 code is one of the improvements probably saved for the full version
- only. It will be faster in some places due to the extra instructions and
- addressing modes available. The multiply and index modes certainly make
- array accesses much quicker. Sines and Cosines are calculated by a polynomial
- expansion method and so the quicker floating point numbers can by multiplied and
- added the better. A 68882 can be accessed in 2 ways, firstly the maths libraries
- should realise one is available and use it, or DICE can explicitly include
- instuctions. This does have the drawback that it requires a 68882 to always be
- there, but is probably a bit quicker than the library calls for simple operations
- like add and multiply.
-