Article 1366 of net.micro.amiga:
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From: steve@amiga.UUCP (Steve B.)
Newsgroups: net.micro.amiga
Subject: Random numbers
Message-ID: <982@amiga.amiga.UUCP>
Date: 11 Apr 86 19:48:59 GMT
Date-Received: 12 Apr 86 16:20:41 GMT
Reply-To: steve@maryann.UUCP (Steve Beats)
Distribution: net
Organization: Commodore Business Machines, 1200 Wilson Drive, West Chester, PA 19380
Lines: 125


While browsing through net.micro.amiga the other day, I noticed a simple
random number routine someone had put in thier posting.  This prompted me
to dig through my old 6502 sources for a random number routine I used to
use a lot.  Here, I've converted it from it's old 40 bit format into a 64 bit
format.  I figured you Amigalites out there may find a use for it.  It
appears to have excellent distribution and is OODLES faster than the floating
point equivalents.  I would really be interested if someone who knows all
about random numbers could test out this routine and let me know how good it
is.  I know the old 40 bit version used to repeat once every 8,589,934,592
iterations, thats 272 years worth at one per second.  I have reason to suspect
that a 64 bit version would be better than this.

Note: each routine has two entry points, one for assembler and one for C.
      use the same name for both since the Lattice C compiler adds an '_'
      to the front of any external references.

      Just assemble this thing (assem rnd.asm -o rnd.obj) and then link
      the object file into your C or assembler program.

Well, thats about all, have fun.

	Steve Beats
	Commodore Technology