Path: utzoo!mnetor!uunet!tektronix!orca!tekecs!frip!andrew
From: andrew@frip.gwd.tek.com (Andrew Klossner)
Newsgroups: comp.sys.m68k
Subject: Re: assembly sine function
Message-ID: <9887@tekecs.TEK.COM>
Date: 3 Apr 88 20:28:45 GMT
References: <2514@umd5.umd.edu>
Sender: nobody@tekecs.TEK.COM
Organization: Tektronix, Wilsonville, Oregon
Lines: 11


	"does anyone out there have a PD sine/cosine function written
	in 68000 assembly language?  I need one that will be VERY fast,
	for it will be called durring an interrupt (VBLANK)."

I've got a very fast function: table lookup.  For example, if you can
round the argument to the nearest degree, then a 90-element table
suffices.  If you need seven-digit accuracy, a table won't help.

  -=- Andrew Klossner   (decvax!tektronix!tekecs!andrew)       [UUCP]
                        (andrew%tekecs.tek.com@relay.cs.net)   [ARPA]