This got me thinking (warning). Looks like values can range from
0.00000000 to 99999999. What about using 'long long's? I think
that should cover the range. Would someone remind me, does mspgcc
have long long support?
Anyway, just a thought.
-Bill Knight
R O SoftWare
On Wed, 12 Feb 2003 08:16:15 -0500 (EST), Thomas Carley wrote:
>Would a fixed point representation work well here? If you use base 2
>(binary fixed point) it is very efficient. What is the range of data you
>need to represent, and with what precision?
>On Wed, 12 Feb 2003, Dmitry wrote:
>> 64bits doubles are not supported.
>> I have no plans to make this support.
>>
>> only 32bits IEEE754 floats are (somehow) suported.
>>
>> ~d
>>
>>
>> On Wednesday 12 February 2003 00:17, Mark Stokes wrote:
>> > What happened to the double data type that was discussed earlier. I
>> > have found a need for it and was wondering. Here's my dilemma:
>> > I am using 8-digit 7-seg display to represent things on the screen.
>> > This means that if I want to represent a floating point number that is
>> > less than one like 0.9999999 I would have a number that is out of the
>> > bounds of the "float" data type. For example:
>> >
>> > float floatvar;
>> >
>> > floatvar = 0.99999999
>> >
>> > Then floatvar ends up == 1 which is not helping me. I need it to ==
>> > .99999999 because internally the controller can't deal w/ numbers (in
>> > this particular variable) that are >= 1.0.
>> > However, if I take the same code and put on Borland, and use "double's",
>> > then I get the intended result (floatvar ends up == to 0.99999999).
>> > {footnote: if I use float in Borland the same thing happens.}
>> >
>> > Any ideas on when "double" will be available? What about a new release
>> > of the win32 executables? Perhaps I'll get the gnu tree working so that
>> > I can make win32 releases, but right now I don't have the time to mess
>> > w/ that.
>> >
>> > Thanks
>> > -Mark
>> >
>> >
>> >
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