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From: socha@drivax.UUCP (Henri J. Socha (x6251))
Newsgroups: comp.arch
Subject: Re: CORDIC references
Message-ID: <1909@drivax.UUCP>
Date: Fri, 19-Jun-87 18:57:21 EDT
Article-I.D.: drivax.1909
Posted: Fri Jun 19 18:57:21 1987
Date-Received: Tue, 23-Jun-87 00:53:52 EDT
References: <966@vaxb.calgary.UUCP> <2280001@hpsal2.HP.COM>
Reply-To: socha@drivax.UUCP (Henri J. Socha (x6251))
Organization: Digital Research, Monterey
Lines: 29

In article <2280001@hpsal2.HP.COM> andrews@hpsal2.HP.COM (Edward E. Andrews) writes:
>Organization: Hewlett Packard, Cupertino

>	References to theoretical papers are nice.  But to a hacker like
>me, there's no substitute for reading through some code on a rainy day.
>	Does anybody have references to some real live software that
>implements some CORDIC algorithms?  Complete with the constants that would
>normally go in ROM.  A sample like that would be really appreciated.
>Thanks...

>Organization: Hewlett Packard, Cupertino
               ^^^^^^^ ^^^^^^^

Well, just get a copy of the HP 35 (and successor?) ROM listings.
It aught to be available in some HP library. It's in there.  :-)    

Sorry, I just couldn't resist the gibe.


Also, sorry no listings but you could disassemble the SANE code in the
Macintosh or Apple II.  Or, get the ROM (6854? - anyway a 68xx number) for the
Motorola 6809 (its a 6809 ROM containing CORDIC based floating point code)!
Hey, its also in the 68881 if you can figure how to dump the ROMs & read it :-)
All of these have CORDIC routines in them.


-- 
UUCP:...!amdahl!drivax!socha                                      WAT Iron'75
"Everything should be made as simple as possible but not simpler."  A. Einstein