Re: [avr-gcc-list] float and double

[Jamie Morken]

Hi Ted,

I am using AVR Studio 3.55 with the avr-gcc compiler

In case this is important here are the compile flags from the makefile:

Here is another piece of code that loses resolution:

(they are all floats)
lat_integer = 48;
lat_fraction = 0.429048;
current_lat = lat_integer + lat_fraction;

the simulator reports current_lat to be 48.429 instead of 48.429048

Is this the price I have to pay for using an 8bit uC?! :)

best regards,
Jamie Morken


----- Original Message -----
From: "Theodore Roth" <address@hidden>
To: "Jamie Morken" <address@hidden>
Sent: Wednesday, July 24, 2002 2:36 PM
Subject: Re: [avr-gcc-list] float and double


> Hi Jamie,
>
> Which simulator are you using?
>
> Ted Roth
>
> On Wed, 24 Jul 2002, Jamie Morken wrote:
>
> > Hi,
> >
> > I have been experimenting with the avr-gcc tools and have noticed that I
> > can
> > never have more than 6 digits with the float and double data types.
> > ie. if I do this in the code:
> > float temp9 = 3455322456.542234543;
> > The simulator will show this:
> > 3.45532E+009
> >
> > Never more than 6 digits :)
> >Is there a way to enable higher resolution?
>
>
>
>


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