Path: chuka.playstation.co.uk!news
From: "Graeme Evans" <evans@fourny.demon.co.uk>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: More Pointless Optimisation Tricks (sin, cos
Date: Thu, 16 Oct 1997 02:30:20 +0100
Organization: PlayStation Net Yaroze (SCEE)
Lines: 18
Message-ID: <62aiaf$e3p29@chuka.playstation.co.uk>
References: <344647ee.14591228@news.playstation.co.uk> <625jjg$e3p24@chuka.playstation.co.uk> <3446d0a3.18235002@news.playstation.co.uk> <627afa$e3p28@chuka.playstation.co.uk>
NNTP-Posting-Host: fourny.demon.co.uk
X-Newsreader: Microsoft Outlook Express 4.71.1712.3
X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3


SCEE wrote in message <627afa$e3p28@chuka.playstation.co.uk>...
>I've done the swap thing before on PC, and it was only quicker if when
doing
>the normal swap via temp the temp had to be declared every time.
>As for PSX, it'll definetly be slower, you could write a little inline
>assembler routine.
>
>Stuart

Doesn't it depend on register spills? Does an XOR take more cycles than a
register move?

I do like pointless conversations.

Graeme