If you have a working version of the AN974 Floating point code, why not
share it with the rest of the community here? I'm sure there are several
individuals that would like to see and use it.
Dave
On Thu, Apr 30, 2009 at 4:48 PM, ga5941 <
ga5941@...> wrote:
>
>
> Earlier I reported a problem(16296)using AN974, MC68HC11 Floating Point
> Package by Gordon Doughman. I'm now happy to report that I have resolved the
> problem and it wasn't with AN974. My floating point calculations in assembly
> code are working correctly including trig functions. The package, however,
> does not include an Arctan function. I have written my own, in assembly of
> course, using the Cordic algorithm. The Arctan function is necessary for
> converting celestial coordinates RA and DEC to earth based coordinates ALT
> and AZ.
>
> A reply to my original note suggested a possible difference between HC11
> and HC12 regarding stack operations but I have found none when using AN974.
>
> Thanks to all that replied.
>
>
>
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