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Subject: Re: Calculator plugin put on hold
From: roland (for_spam_at_gmx.de)
Date: 2004-04-27


yep, that was coming to my mind, too.
even c64 basic interpreter could do floating-point arithmetic - 6510 processor alone wasn`t able to do that. it was all done in
"software".
maybe there exists a suitable c-library?

maybe:
http://groups.google.de/groups?q=floating+point+integer++%22c-library%22&hl=de&lr=&ie=UTF-8&oe=UTF-8&selm=8cfhun%241be%241%40ssauraab-i-1.production.compuserve.com&rnum=1
is a start ?

so - find an apropriate c-library and probably just use that for your plugin....
(sorry if this is a wrong hint - i`m no real programmer - but perhaps this gives an idea....)
regards
roland

ps:
as far as i remember linux-kernel on 386 processors without fpu was able to do floating-point "emulation", too.

----- Original Message -----
From: "Gary Wingert" <gary_wingert_at_sonic.com>
To: "Rockbox development" <rockbox_at_cool.haxx.se>
Sent: Tuesday, April 27, 2004 12:51 AM
Subject: RE: Calculator plugin put on hold

>
> Not sure if this helps or not, but what about BCD math?
> Years ago, I wrote code in QuickBasic but linked with
> highly-efficient hand-coded assembler libraries from
> Crescent Software. All floating point was tossed out -
> integer only. Then another company came out with a
> companion library that performed floating point ops but
> used BCD to do it all with integers.
>
> I don't pretend to know all the voodoo that goes on
> there, but try googling it and maybe that might be
> an alternative?
>
> http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=bcd+math+inte
> gers
>
>
> > -----Original Message-----
> > From: rockbox-bounces_at_cool.haxx.se
> > [mailto:rockbox-bounces_at_cool.haxx.se]On Behalf Of Tom Norris
> > Sent: Monday, April 26, 2004 3:17 PM
> > To: Rockbox development
> > Subject: Calculator plugin put on hold
> >
> >
> > I just found out that there is no support for floating point
> > precision,
> > so I'm putting my plugin development on hold... for now.
> > If I can figure out how to implement it I'll continue work on the
> > calculator plugin.
> > _______________________________________________
> > http://cool.haxx.se/mailman/listinfo/rockbox
>
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>

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