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- References: <38232182@kone.fipnet.fi> <1019.6602T1224T1930@ifi.uio.no>
- From: "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi>
- Date: Wed, 31 Jan 96 15:53:26 UT
- Comments: Illegal date header - new date added by quicknews
- X-Original-Date: Wed, 31 Jan 96 17:20:48
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- Subject: Re: TMapping again!
- Message-ID: <38232237@kone.fipnet.fi>
-
-
- > >Square roots usually can be eliminated totally, luckily.. ;)
- > >I have come to the conclusion with the guy (Ludvid Petersen) who
- > >wrote the original 3d rotation routine using a log table and
- > >only adds and moves, that it is not that much faster. On the 68060
- > >it is slower..
- >
- > Nice spelling! Anyway I don't know how bad my names sound in finish. ;)
-
- Sorry, I remembered how to write Ludvig (pure writing error)
- but I did not remember was it "t" or "d" in your name.
-
- Anyway, it sounds very normal.
-
- > My friend Patrick Hanevold wrote a fast log routine (without any Zero
- > or Negative test) which I think was released in this news group some
- > time ago!?
-
- Yep.
-
- > It was a little faster than my 9 muls.l version on a 030/50mhz and a
- > little slower on a 040/25mhz.
-
- How much faster on a 030/50 and how much slower on a 040/25?
- Did you try without the data cache on the 040? It really
- can make a difference with such a miserable memory subsystem.
-
- -- _
- a Stellar programmer _ //
- "Amiga - back for the future" \X/
-