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- From: azure@people-s.people.de (Tim Boescke)
- Subject: Re: TMapping again!
- Date: 16 Feb 1996 23:30:03 +0100
- Path: people-s.people.de!azure
- Newsgroups: comp.sys.amiga.programmer
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-
- fischerj@informatik.tu-muenchen.de (Juergen Rally Fischer) erzeugte am 09.02.1996 unter dem
- Betreff "Re: TMapping again!" :
- JF> In article <4fen2i$eag@maureen.teleport.com>, sschaem@teleport.com (Stephan Schaem) writes:
- JF> |> Organization: Teleport - Portland's Public Access (503) 220-1016
- JF> |> Lines: 15
- JF> |> Distribution: world
- JF> |> Message-ID: <4fen2i$eag@maureen.teleport.com>
- JF> |> References: <4e38rv$9ic@sunsystem5.informatik.tu-muenchen.de> <4f4p95$hj6@oreig.uji.es> <38232328@kone.fipnet.fi>
- JF> |> NNTP-Posting-Host: julie.teleport.com
- JF> |> X-Newsreader: TIN [version 1.2 PL2]
- JF> |>
- JF> |> Jyrki Saarinen (jsaarinen@kone.fipnet.fi) wrote:
- JF> |>
- JF> |> : > Many people keep a table of left and right edges for phong, t-mapping
- JF> |> : > and all that stuff. This is really necessary on the PC due to the
- JF> |> : > lack of registers, but on a 68k system you can easily calculate
- JF> |> : > left and right edges keeping LeftX, RightX, LeftDelta and RightDelta
- JF> |> : > in registers avoiding some memory accesses. Ok, this is part of the
- JF> |>
- JF> |> : Actually this is better on 80x86, too.
- JF>
- JF> because an x86 got more regs, huh ? ;)
- JF>
- JF> |>
- JF> |> What is best on the 80x86? 80x86 does less memory access during
- JF> |> a tmap polygon loop?
- JF>
- JF> no, why should it.
-
- Actually a x86 has some Burst-whatever L2-Cache, which is a lot
- faster than 680x0 mem-acces...
-
-
- JF> |>
- JF> |> Stephan
- JF> |>
- JF> ------------------------------------------------------------------------
- JF> fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
- JF>
-
- --
- +--------------------------------------------------------------------+
- | - AZURE@PEOPLE-S.people.de - Tim Boescke - AZURE /atw.bzr |
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