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

[Theodore Roth]

It wouldn't surprise me if what you are seeing is just an artifact of the
simulator (or avr studio).

I'm not really familiar with avr floating point operations myself. I only
asked because I'm interested in how my simulavr program would handle it
(with gdb as front end).

Could you send me a simple (complete) program which demostrates this so I
can run it there simulavr/gdb and compare results?

Ted Roth

On Wed, 24 Jul 2002, Jamie Morken wrote:

:) 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


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