Re: Calculator problem on ARM board

["Matt Gessner" <mgessner@xxxxxxxxx>]

I thought I would throw my $0.02 in.

I'm using gcc 4.0.0 from ELDK 4.1 for an AT91RM9200 (no fpu for those who
don't recognize the chip).

I ran the same program someone typed in previously.

I used your arguments, below, and got precisely the correct result.

I'm using NetWinder Floating Point Emulator V0.97 (double precision).

# uname -a
Linux mlx770 2.6.25 #1010 PREEMPT Thu Oct 23 15:58:42 EDT 2008 armv4tl
unknown

I don't know if this will help you or not, but it's another data point for
you.

Regards,

- Matt

On Wed, Nov 5, 2008 at 5:23 AM, kartikay Malhotra <
kartikay.malhotra@xxxxxxxxx> wrote:

> Hello All,
>
> I am facing a problem. I have a calculator application, which has 14 bit
> screen. When I add two numbers, number1 += number2, where both number1 and
> number2 are double, and one of the numbers is very large, and the other
> number is small, I get an error in result.
>
> For example, 10000000000000 + 1 gives 1e+13, instead of 10000000000001.
> This
> is because the result string  is actually 10000000000000.99.
>
> Is there a problem in the compiler, or is double precision arithmetic
> incorrect? The same application complied for x86 gives no error.
>
> Any pointers would be helpful.
>
> Thanks & Regards
> Er. KM
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